# Mainmark > Leaders in Advanced Ground Engineering --- ## Pages - [Cracked Walls Takapuna](https://mainmark.co.nz/cracked-walls-takapuna/): Learn when wall cracks in Takapuna indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Belmont](https://mainmark.co.nz/cracked-walls-belmont/): Learn when wall cracks in Takapuna indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Bayswater](https://mainmark.co.nz/cracked-walls-bayswater/): Learn when wall cracks in Takapuna indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Birkdale](https://mainmark.co.nz/cracked-walls-birkdale/): Learn when wall cracks in Birkdale indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Avondale](https://mainmark.co.nz/cracked-walls-avondale/): Learn when wall cracks in Birkdale indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Belfast](https://mainmark.co.nz/cracked-walls-belfast/): Learn when wall cracks in Avondale indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Addington](https://mainmark.co.nz/cracked-walls-addington/): Learn when wall cracks in Belfast indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Fendalton](https://mainmark.co.nz/cracked-walls-fendalton/): Learn when wall cracks in Addington indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Kaikoura](https://mainmark.co.nz/cracked-walls-kaikoura/): Learn when wall cracks in Fendalton indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Invercargill](https://mainmark.co.nz/cracked-walls-invercargill/): Learn when wall cracks in Kaikoura indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Lower Hutt](https://mainmark.co.nz/cracked-walls-lower-hutt-2/): Learn when wall cracks in Invercargill indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Waterloo](https://mainmark.co.nz/cracked-walls-waterloo/): Learn when wall cracks in Lower Hutt indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Avalon](https://mainmark.co.nz/cracked-walls-avalon/): Learn when wall cracks in Waterloo indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Feilding](https://mainmark.co.nz/cracked-walls-feilding/): Learn when wall cracks in Avalon indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Mt Eden](https://mainmark.co.nz/cracked-walls-mt-eden/): Learn when wall cracks in Feilding indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls New Market](https://mainmark.co.nz/cracked-walls-new-market/): Learn when wall cracks in Mt Eden indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Papakura](https://mainmark.co.nz/cracked-walls-papakura/): Learn when wall cracks in New Market indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Remuera](https://mainmark.co.nz/cracked-walls-remuera/): Learn when wall cracks in Papakura indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Redcliffs](https://mainmark.co.nz/cracked-walls-redcliffs/): Learn when wall cracks in Hoon Hay indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Somerfield](https://mainmark.co.nz/cracked-walls-somerfield/): Learn when wall cracks in Redcliffs indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Remeura](https://mainmark.co.nz/cracked-walls-remeura/): Learn when wall cracks in Somerfield indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Devonport](https://mainmark.co.nz/cracked-walls-devonport/): Learn when wall cracks in Remeura indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Hamilton](https://mainmark.co.nz/cracked-walls-hamilton/): Learn when wall cracks in Devonport indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Ponsonby](https://mainmark.co.nz/cracked-walls-ponsonby/): Learn when wall cracks in Hamilton indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Nelson](https://mainmark.co.nz/cracked-walls-nelson/): Learn when wall cracks in Ponsonby indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Takapuna](https://mainmark.co.nz/cracked-walls-takapuna/): Learn when wall cracks in Nelson indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Parnell](https://mainmark.co.nz/cracked-walls-parnell/): Learn when wall cracks in Takapuna indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Rosedale](https://mainmark.co.nz/cracked-walls-rosedale/): Learn when wall cracks in Parnell indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Westcoast](https://mainmark.co.nz/cracked-walls-westcoast/): Learn when wall cracks in Rosedale indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Tasman](https://mainmark.co.nz/cracked-walls-tasman/): Learn when wall cracks in Westcoast indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Otago](https://mainmark.co.nz/cracked-walls-otago/): Learn when wall cracks in Tasman indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Gisborne](https://mainmark.co.nz/cracked-walls-gisborne/): Learn when wall cracks in Otago indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Southland](https://mainmark.co.nz/cracked-walls-southland/): Learn when wall cracks in Gisborne indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls New Brighton](https://mainmark.co.nz/cracked-walls-new-brighton/): Learn when wall cracks in Southland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Spreydon](https://mainmark.co.nz/cracked-walls-spreydon/): Learn when wall cracks in New Brighton indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Woolston](https://mainmark.co.nz/cracked-walls-woolston/): Learn when wall cracks in Spreydon indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Scarborough](https://mainmark.co.nz/cracked-walls-scarborough/): Learn when wall cracks in Woolston indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Taupo](https://mainmark.co.nz/cracked-walls-taupo/): Learn when wall cracks in Scarborough indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Northland](https://mainmark.co.nz/cracked-walls-northland/): Learn when wall cracks in Taupo indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Tauranga](https://mainmark.co.nz/cracked-walls-tauranga/): Learn when wall cracks in Northland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Rotorua](https://mainmark.co.nz/cracked-walls-rotorua/): Learn when wall cracks in Tauranga indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Mt Maunganui](https://mainmark.co.nz/cracked-walls-mt-maunganui/): Learn when wall cracks in Rotorua indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls East Auckland](https://mainmark.co.nz/cracked-walls-east-auckland/): Learn when wall cracks in Mt Maunganui indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls West Auckland](https://mainmark.co.nz/cracked-walls-west-auckland/): Learn when wall cracks in East Auckland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls North Shore Auckland](https://mainmark.co.nz/cracked-walls-north-shore-auckland/): Learn when wall cracks in North Shore Auckland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Hibiscus Coast](https://mainmark.co.nz/cracked-walls-hibiscus-coast/): Learn when wall cracks in North Shore Auckland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Milford](https://mainmark.co.nz/cracked-walls-milford/): Learn when wall cracks in Hibiscus Coast indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Burnside](https://mainmark.co.nz/cracked-walls-burnside/): Learn when wall cracks in Milford indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Hawkes Bay](https://mainmark.co.nz/cracked-walls-hawkes-bay/): Learn when wall cracks in Burnside indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Taranaki](https://mainmark.co.nz/cracked-walls-taranaki/): Learn when wall cracks in Hawkes Bay indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Bay of Plenty](https://mainmark.co.nz/cracked-walls-bay-of-plenty/): Learn when wall cracks in Taranaki indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Manawatu](https://mainmark.co.nz/cracked-walls-manawatu/): Learn when wall cracks in Bay of Plenty indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Whanganui](https://mainmark.co.nz/cracked-walls-whanganui-2/): Learn when wall cracks in Manawatu indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Henderson](https://mainmark.co.nz/cracked-walls-henderson/): Learn when wall cracks in Whanganui indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Helensville](https://mainmark.co.nz/cracked-walls-helensville/): Learn when wall cracks in Henderson indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Palmerston North](https://mainmark.co.nz/cracked-walls-palmerston-north-2/): Learn when wall cracks in Helensville indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Glendene](https://mainmark.co.nz/cracked-walls-glendene/): Learn when wall cracks in Palmerston North indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Canterbury](https://mainmark.co.nz/cracked-walls-canterbury/): Learn when wall cracks in Glendene indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Auckland](https://mainmark.co.nz/auckland-cracked-wall-repair/): Learn when wall cracks indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Wellington](https://mainmark.co.nz/cracked-walls-wellington/): Learn when wall cracks in Auckland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Christchurch](https://mainmark.co.nz/cracked-walls-christchurch/): Learn when wall cracks in Auckland indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Queenstown](https://mainmark.co.nz/cracked-walls-queenstown/): Learn when wall cracks in Christchurch indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Dunedin](https://mainmark.co.nz/cracked-walls-dunedin/): Learn when wall cracks in Christchurch indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Waikato](https://mainmark.co.nz/cracked-walls-waikato/): Learn when wall cracks in Christchurch indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Lower Hutt](https://mainmark.co.nz/cracked-walls-lower-hutt/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Napier](https://mainmark.co.nz/cracked-walls-napier/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Hastings](https://mainmark.co.nz/cracked-walls-hastings/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Palmerston North](https://mainmark.co.nz/cracked-walls-palmerston-north/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Glen Eden](https://mainmark.co.nz/cracked-walls-glen-eden/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Whanganui](https://mainmark.co.nz/cracked-walls-whanganui/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Havelock North](https://mainmark.co.nz/cracked-walls-havelock-north/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls North Shore](https://mainmark.co.nz/cracked-walls-north-shore/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Titirangi](https://mainmark.co.nz/cracked-walls-titirangi/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls St Helliers](https://mainmark.co.nz/cracked-walls-st-helliers/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Kohimarama](https://mainmark.co.nz/cracked-walls-kohimarama/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Marshlands](https://mainmark.co.nz/cracked-walls-marshlands/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Parklands](https://mainmark.co.nz/cracked-walls-parklands/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Sumner](https://mainmark.co.nz/cracked-walls-sumner/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Cracked Walls Hoon Hay](https://mainmark.co.nz/cracked-walls-hoon-hay/): Learn when wall cracks in Dunedin indicate structural problems, their causes, and effective solutions like Mainmark's Teretek® resin injection - [Australia Page](https://mainmark.co.nz/australia/): Founded In 1989 by Philip Mack following the earthquake that affected Newcastle, Mainmark quickly established itself as a local industry leader in tailored earthquake repair and remediation solutions. - [Pipe Abandonment & Decommissioning](https://mainmark.co.nz/pipe-abandonment-decommissioning-solutions-mainmark/): Mainmark's innovative Terefil® solution for pipe abandonment & decommissioning. Fill abandoned pipelines quickly, safely, & cost-effectively. - [Concrete Rising and Levelling](https://mainmark.co.nz/mainmark-residential-solutions-foundation-repair-for-homes/concrete-rising-and-levelling/): We inject engineered resin to improve your founding soil when you need to re-level your concrete slabs. - [Terefil Raft for Liquefiable Sites](https://mainmark.co.nz/soil-replacement/gravel-raft-liquefaction/): Terefil is used to create a lightweight cellular concrete raft prior to building construction. Save on excavation time and disposal costs - [Enquiry Form](https://mainmark.co.nz/enquiry-form/): Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing. - [Soil Replacement](https://mainmark.co.nz/soil-replacement/): Terefil is a Mainmark technology to create a lightweight foamed or cellular concrete. Foamed concrete has found extensive use in construction and civil engineering applications due to being lightweight while still retaining good compressive strength. Terefil is effective for improving ground conditions in areas with soft, compressible soils. - [Manufacturing](https://mainmark.co.nz/industries/manufacturing/): Our teams are experts in helping factory and warehouse owners faced with unlevel buildings and weak ground. - [Liquefaction Mitigation](https://mainmark.co.nz/seismic-strengthening/liquefaction-mitigation/): Teretek resin injection is a ground improvement technology that can be used to mitigate liquefaction with minimal disruptions. - [Terefil Raft](https://mainmark.co.nz/technologies/terefil-raft/): Our team is dedicated to reshaping the future of construction with a new application for our Terefil Cellular Concrete technology - lightweight building rafts. - [Seismic Strengthening](https://mainmark.co.nz/seismic-strengthening/): We have been providing turnkey solutions to secure buildings against future seismic events for over three decades across Australasia and Japan - [Measuring cracks around your home](https://mainmark.co.nz/house-subsidence/measuring-cracks-around-your-home/): Mainmark offers professional solutions for cracked walls, providing quick and cost-effective re-levelling services for house foundations. Get in touch to understand your options and find a long term solution to your structural problems. - [Who we are](https://mainmark.co.nz/who-we-are/): Learn about Mainmark, a leading provider of ground engineering solutions, committed to innovation and sustainability since 1989. - [Teretek Resin Injection](https://mainmark.co.nz/technologies/teretek-resin-injection/): Teretek® resin injection is used for ground improvement beneath existing structures. There are two primary applications for the technology, bearing capacity increase and liquefaction mitigation. - [Media & Press Releases](https://mainmark.co.nz/resources/media-press-releases/): Explore Mainmark's media press releases, covering company milestones, project successes, and industry advancements in ground engineering. - [Residential Brochures](https://mainmark.co.nz/resources/residential-brochures/): Explore our residential brochures & ground improvement whitepapers. Download our resources for valuable insights into our solutions. - [Commercial Brochures](https://mainmark.co.nz/resources/commercial-brochures/): Explore our collection of commercial brochures focusing on ground improvement. Download resources like "Resin Injection Ground Improvement Research Trials – Avondale and Bexley Red Zone Christchurch," "Use of expanding polyurethane resin to remediate expansive soil foundations," "Structure and properties of expanding polyurethane foam in the context of foundation remediation in expansive soil," and "Resin injection as a ground improvement method." Gain valuable insights for your projects. - [Slab Jacking and Concrete Slabjack](https://mainmark.co.nz/slab-jacking-and-concrete-slabjack/): Our level correction methods can cater to any building size, from homes and driveways to warehouses and transport yards, and are non-invasive, cost-effective, time-efficient, with minimal disruption to the occupants. - [Terefil®](https://mainmark.co.nz/technologies/terefil/): Explore Mainmark's Terefil® lightweight foamed concrete for void-filling, pipe abandonment, and soil replacement. - [Re-levelling](https://mainmark.co.nz/re-levelling/): Discover Mainmark's Teretek® & JOG technologies for non-invasive, cost-effective building re-levelling solutions. - [Ground Improvement](https://mainmark.co.nz/ground-improvement/): We provide advanced ground improvement solutions to enhance soil properties, improve load-bearing capacity, & ensure foundation safety. - [Void Filling](https://mainmark.co.nz/void-filling/): Mainmark offers comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts. - [Awards](https://mainmark.co.nz/who-are-we/awards/): Mainmark is proud to be recognised as a global leader in ground engineering solutions. Find out how Mainmark New Zealand can assist. --- ## Projects - [Re-levelling a 20,000m² Warehouse ](https://mainmark.co.nz/projects-re-levelling-a-20000m%C2%B2-warehouse/): Mainmark’s re-levelling of a 20,000m² warehouse used Teretek® resin injection to efficiently correct settlement and ensure safety. Learn more. - [Ground Improvement for Historic Waikato Regional Theatre](https://mainmark.co.nz/projects/ground-improvement-for-historic-waikato-regional-theatre/): Mainmark's Teretek ground improvement was chosen to support extensive development of the surrounding area, while preserving a neoclassical facade from the 1920s. - [Power Station Floor Re-supported](https://mainmark.co.nz/projects/power-station-floor-re-supported/): Without interruption to the operations of the power station, the reinforced concrete floor was fully re- supported and under-sealed against further erosion. - [Fire Station Driveway Subsidence Remediated](https://mainmark.co.nz/projects/fire-station-driveway-subsidence-remediated/): This fire station located in southern Canterbury had experienced subsidence from the weight of fire trucks driving over the slab for many years. Find out more! - [Ground Improvement at Poverty Bay Rugby Club](https://mainmark.co.nz/projects/ground-improvement-at-poverty-bay-rugby-club/): Following fundraising from the community and sponsors, the club invested in redeveloping the grandstand overlooking Rugby Park. - [Hamilton Yacht Pump Station Water Mitigation](https://mainmark.co.nz/projects/hamilton-yacht-pump-station-water-mitigation/): An issue had arisen within the wastewater system at Hamilton Yacht Club, located on the shore of Hamilton Lake. - [Tip Top Ice Cream Void Fill and Re-Level Project](https://mainmark.co.nz/projects/tip-top-ice-cream-void-fill-and-re-level-project/): Mainmark was able to provide both a cost-effective and timely solution for the client. A total lift of 180mm was achieved, across a space measuring 200m² - [Redevelopment of Wainuiomata High School using Terefil Cellular Concrete](https://mainmark.co.nz/projects/redevelopment-of-wainuiomata-high-school-using-terefil-cellular-concrete/): The lightweight nature of Terefil meant a reduced weight on the underlying soil, allowing for new school buildings to be added to the site. - [Mainmark fills Nelson culvert no longer in use](https://mainmark.co.nz/projects/mainmark-fills-nelson-culvert-no-longer-in-use/): The structure and location of the culvert presented a unique engineering challenge, so Downer, reached out to the team at Mainmark. - [Residence Re-levelled by JOG & USL](https://mainmark.co.nz/projects/residence-re-levelled-by-jog-usl/): This residential property was located in one the areas of Christchurch hardest hit by the earthquakes of 2010-2011. The foundation soil was mainly non- cohesive silty-sand and the watertable in the area was generally just a metre or less below ground level. - [Christchurch House Raised 60mm & Re-supported](https://mainmark.co.nz/projects/entire-house-raised-60mm-re-supported/): This large residence in Christchurch suffered differential settlement of an average 55mm from the 2010 & 2011 earthquakes. Set on a raft concrete slab, the whole house had subsided and tilted. - [Large Christchurch House Re-levelled by JOG](https://mainmark.co.nz/projects/large-house-re-levelled-by-jog-and-uretek-resin/): This large residential property in Christchurch was subsided and tilted, due to earthquake liquefaction. With a combination of the JOG computer controlled grout and expanding structural resin injection, the house was back up to level in 18 days. - [Mainmark Fills Voids and Strengthens Ground Under a Paraparaumu Beach Home](https://mainmark.co.nz/projects/teretek-fills-voids-and-strengthens-ground-under-a-paraparaumu-beach-home/): A large family home in Paraparaumu Beach, near Wellington, was experiencing significant subsidence due to suspected voids beneath the concrete slab. The single- storey, brick veneer house, built in 1989, showed signs of damage that included numerous internal cracks and misalignment of doors and windows. - [Mainmark raises and re-levels home in Upper Hutt](https://mainmark.co.nz/projects/teretek-raises-and-re-levels-home-in-upper-hutt/): When the glass sliding door of a family home in Upper Hutt, New Zealand, became misaligned, the homeowner suspected it was due to ground subsidence as the family home was built on a steep slope. A subsequent ground engineering report pointed to poor localised soil bearing capacity which was most likely caused by an ancient waterway. - [Mainmark Protects Heritage Listed Auckland Building with Continuous Monitoring](https://mainmark.co.nz/projects/straam-protects-heritage-listed-auckland-building-with-continuous-monitoring/): The heritage Britomart Hotel (known as The White Rabbit), is a two-storey, unreinforced, bluestone masonry structure and its overall condition was poor due to its age. - [Teretek® Brings Turangi Home Back to Level Despite Underfloor Heating Challenge](https://mainmark.co.nz/projects/teretek-brings-turangi-home-back-to-level-despite-underfloor-heating-challenge/): A residential property on a sloping block in remote Omori, Turangi near Lake Taupo in New Zealand’s North Island, experienced subsidence due to voids under the slab. - [Teretek® Re-levels Busy Transport Yard](https://mainmark.co.nz/projects/teretek-re-levels-busy-transport-yard/): Teretek® Re-levels Busy Transport Yard in New Zealand. Find out more about how Mainmark could assist. - [Teretek® Used to Re-level Department Store Floors](https://mainmark.co.nz/projects/teretek-used-to-re-level-department-store-floors/): Teretek® Used to Re-level Department Store Floors in New Zealand. Find out more at Mainmark New Zealand and how we can assist. - [Ground strengthened and building re-levelled at large shopping centre](https://mainmark.co.nz/projects/ground-strengthened-and-building-re-levelled-at-large-shopping-centre/): Northwood Supa Centa in Christchurch is home to several ‘big brand’ retailers. The centre experienced liquefaction-induced ground deformations following the Christchurch Earthquakes - [School Building Foundations Strengthened](https://mainmark.co.nz/projects/school-building-foundations-strengthened/): School Building Foundations Strengthened by Mainmark. Find out more at Mainmark New Zealand and how we can assist with your Foundations issues. - [Storm-water Pipeline filled with Benefil](https://mainmark.co.nz/projects/storm-water-pipeline-filled-with-benefil/): Using Benefil light-weight engineering filler grout, we completed the project for WaterCare Services - [Waste-water Pipeline filled with Benefil](https://mainmark.co.nz/projects/waste-water-pipeline-filled-with-benefil/): Waste-water Pipeline filled with Benefil. Find out more about Mainmark New Zealand. See how we can assist with your issues. - [Multi Story Building Re-levelled by JOG](https://mainmark.co.nz/projects/multi-story-building-re-levelled-by-jog/): Multi Story Building Re-levelled by JOG. Find out more at Mainmark New Zealand. Find out more at Mainmark New Zealand - [Commercial Building Subsidence Remediated](https://mainmark.co.nz/projects/commercial-building-subsidence-remediated/): Commercial Building Subsidence Remediated in New Zealand. Find out more about Mainmark and how they can assist. - [Shopping & Office Complex Re-levelled](https://mainmark.co.nz/projects/shopping-office-complex-re-levelled/): Shopping & Office Complex Re-levelled by Mainmark New Zealand. Find out more! - [JOG Computer-Controlled Grouting Re-levels Multi-Storey Apartment Building in Christchurch](https://mainmark.co.nz/projects/jog-computer-controlled-grouting-re-levels-multi-storey-apartment-building-in-christchurch/): JOG Computer-Controlled Grouting Re-levels Multi-Storey Apartment Building in Christchurch. Find out more! - [Cold Storage Facility Re-levelled by JOG](https://mainmark.co.nz/projects/cold-storage-facility-re-levelled-by-jog/): Cold Storage Facility Re-levelled by JOG in New Zealand. Find out more about Mainmark and how we can assist in Relevelling. - [Supermarket Raised 180mm & Re-levelled](https://mainmark.co.nz/projects/supermarket-raised-180mm-re-levelled/): Supermarket in New Zealand Raised 180mm & Re-levelled by Mainmark. Find out more at Mainmark New Zealand and how we can assist. - [Large Building Re-levelled by JOG & UDI](https://mainmark.co.nz/projects/large-building-re-levelled-by-jog-udi/): This two-storey commercial building with a footprint of 510m² had walls built of precast tilt-panels and had suffered significant earthquake subsidence.In three weeks, Mainmark rectified the settlement, by applying JOG integrated computer grouting and injections of Uretek expanding structural resins. - [3-Storey Home Unit Block Re-levelled](https://mainmark.co.nz/projects/3-storey-home-unit-block-re-levelled/): After purchasing an iconic eight-storey residential apartment building in Christchurch, new owners KCRB Ltd undertook seismic strengthening through ground remediation works. - [Warehouse Earthquake Damage Remediated](https://mainmark.co.nz/projects/warehouse-earthquake-damage-remediated/): Warehouse Earthquake Damage Remediated by Mainmark New Zealand. Find out more at Mainmark New Zealand and how we can assist. - [Apartment Building Subsidence Remediated](https://mainmark.co.nz/projects/apartment-building-subsidence-remediated/): Apartment Building Subsidence Fixed by Mainmark New Zealand. Find out more and learn how we can assist! - [Warehouse Floor Raised and Re-levelled](https://mainmark.co.nz/projects/warehouse-floor-raised-and-re-levelled/): Warehouse floor raised and re-levelled by Mainmark New Zealand. Find out more! - [House and Garage Lifted and Re-levelled](https://mainmark.co.nz/projects/house-and-garage-lifted-and-re-levelled/): House and Garage Lifted and Re-levelled by Mainmark. Find out more and enquiry how we can help! - [Thai Factory Canteen Floor Re-levelled](https://mainmark.co.nz/projects/thai-factory-canteen-floor-re-levelled/): The problem was that this factory canteen had subsided due to weak sub-base soil. The consequent subsidence had created dangerous trip hazards at several locations and had fractured many floor tiles. - [Christchurch House Floor Raised and Re-levelled](https://mainmark.co.nz/projects/house-floor-raised-and-re-levelled/): This building had just been completed when an earthquake struck. There was subsidence along the 25 lineal metres of its back wall with the drop ranging from 24mm to 100mm. Also affected by the earthquake were areas in the centre of the slab floor. - [Concrete Slab Beneath Tank Re-levelled in Lyttelton](https://mainmark.co.nz/projects/concrete-slab-on-ground-tank-re-levelled/): Uretek Deep-Injection foundation treatment was used to raise and re-level a concrete slab. This was beneath bitumen tanks located at a local farm in Lyttleton, near Christchurch. This was required to rectify earthquake damage. - [Teretek® Provides Ground Improvement and Reduces Lateral Spreading at Christchurch Residence](https://mainmark.co.nz/projects/grout-injections-improve-earthquake-resilience-for-christchurch-apartment-building-2/): A two-storey house in Christchurch suffered structural damage caused by soil liquefaction following earthquake events in 2011. - [Grout injections Improve Earthquake Resilience For Christchurch Apartment Building](https://mainmark.co.nz/projects/grout-injections-improve-earthquake-resilience-for-christchurch-apartment-building/): Grout injections Improve Earthquake Resilience in Building. Find out more about Mainmark - [Resin Injection Used to Increase Liquefaction Resistance at O’Connells Shopping Complex ](https://mainmark.co.nz/projects/resin-injection-queenstown/): O’Connells, a large retail, dining and office complex in Queenstown was undergoing a multi-million dollar redevelopment - [Art Gallery Re-supported and Re-levelled](https://mainmark.co.nz/projects/art-gallery-re-supported-and-re-levelled/): The world-class, modern Christchurch Art Gallery Christchurch Art Gallery Te Puna o Waiwhetū’ was badly shaken by the earthquakes that hit New Zealand’s South Island in 2010 and 2011. - [Decommissioning a Water Main Pipe with Terefil®](https://mainmark.co.nz/projects/decommissioning-a-water-main-pipe-with-terefil/): To safely decommission the ageing water main pipe without disrupting a local school or private property owners, Mainmark used a pressure grouting technique with its proprietary Terefi l® cementitious grout. - [Filter Ponds and Clarifier Tank at Glen Innes Water Treatment Plant Re-lined](https://mainmark.co.nz/projects/filter-ponds-and-clarifier-tank-at-glen-innes-water-treatment-plant-re-lined/): Mainmark delivered a long-term asset preservation solution for a fresh water treatment plant at Glen Innes, New South Wales, with the rectification of linings for three filter ponds and a clarifier tank. --- ## News - [Mainmark appoints Peter Bierton as new CEO](https://mainmark.co.nz/news/mainmark-appoints-peter-bierton-as-new-ceo/): The Mainmark Board of Directors is pleased to announce the appointment of Peter Bierton as the new Chief Executive Officer, commencing on Monday, 2nd June 2025. - [Concrete Underpinning vs Resin Injection – The Differences](https://mainmark.co.nz/news/concrete-underpinning-vs-resin-injection-the-differences/): Concrete underpinning refers to the traditional way of underpinning which involves excavating. Resin injection refers to a more modern way of underpinning concrete by injecting a specialiSed expanding resin. - [5 reasons to invest in your property’s foundations before selling your home](https://mainmark.co.nz/news/5-reasons-to-invest-in-your-property/): Whether you're selling up or settling in, the foundations of your home matter. Build buyer confidence and appeal, avoid emergency repairs, and take advantage of non-disruptive solutions. - [How trees impact ground conditions and building foundations](https://mainmark.co.nz/news/how-trees-impact-ground-conditions-and-building-foundations/): If you’re seeing cracks, misaligned doors, or other signs of foundation movement, it’s important to consult with a professional - [Preventing and treating voids under houses, driveways and footpaths](https://mainmark.co.nz/news/news/treating-voids-under-homes/): Many residential areas in New Zealand are built on low lying flood plains, making voiding underneath house a common problem for homeowners. - [Have the Auckland floods impacted the foundation of your home?](https://mainmark.co.nz/news/auckland-floods-impacted-your-home-foundation/): If you’ve noticed the signs of subsidence, assessing the extent of the damage and your next steps can be easier than you think. - [Is your rental property out of level?](https://mainmark.co.nz/news/is-your-rental-property-out-of-level/): Fixing subsidence in your rental property doesn’t have to mean putting your tenancies on hold. Whether your rental property foundation has had long term issues, or you noticed changes after a big flood season last year, it’s never too early to remedy subsidence. - [Are unstable foundations affecting your manufacturing business?](https://mainmark.co.nz/news/are-unstable-foundations-affecting-your-manufacturing-business/): Owners in manufacturing and heavy industries will be familiar with the daily wear and tear their facilities experience. Being proactive about the condition of your facilities isn't complicated. The first step is simply noticing the signs that might indicate more serious issues. Mainmark are experts in helping factory and warehouse owners faced with unlevel buildings and weak ground. - [Save time and money with a gravel raft alternative](https://mainmark.co.nz/news/gravel-raft-alternative/): Traditional soil replacement involves removing poor soil and replacing it with gravel fill, or piling — but there’s a more efficient way to do this. Over the last 30 years, developments in cellular concrete technology have revolutionised construction. - [Preserving heritage buildings to keep communities strong](https://mainmark.co.nz/news/preserving-heritage-buildings-to-keep-communities-strong/): As New Zealand's suburbs and cities grow, local governments must prioritise the preservation of heritage-listed buildings - [Remove the stress by repairing your home](https://mainmark.co.nz/news/remove-the-stress-by-repairing-your-home/): When it comes to repairing or renovating homes, nothing halts progress like not knowing where to start. The team at Mainmark has raised, re-levelled and re-supported homes, buildings and structures for over 25 years. - [The use of geophysical testing for Mainmark technologies](https://mainmark.co.nz/news/the-use-of-geophysical-testing-for-mainmark-technologies/): Geophysical testing provides a suite of tools used in geotechnical engineering to identify the soil types present and to analyse their expected behaviour. Mainmark utilises these tests to determine project suitability and design - [The sinkhole phenomenon – what causes them and how are they remediated?](https://mainmark.co.nz/news/the-sinkhole-phenomenon-what-causes-them-and-how-are-they-remediated/): Sinkholes have been known to open up in all manner of locations – beaches and oceans, residential gardens, motorways, even shopping centre carparks. --- ## Landing Pages - [Underpinning foundation repair](https://mainmark.co.nz/underpinning-foundation-repair/): Re-support and re-level your home with Mainmark’s expert underpinning and foundation repair solutions. Fast, clean, and cost-effective. - [Slab jacking](https://mainmark.co.nz/slab-jacking/): Raise, re-level and re-support sunken concrete slabs fast with Mainmark’s proven slab jacking and lifting solutions. Non-invasive and cost-effective. - [lp-relevelling](https://mainmark.co.nz/lp-relevelling/): Fast, clean & cost-effective re-levelling and foundation repair for homes. Re-level and re-support your sinking foundation. Get a FREE Quote. - [Queenstown Resin Injection](https://mainmark.co.nz/landing-pages/queenstown-resin-injection/): In the past Mainmark Wellington used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Taupo Resin Injection](https://mainmark.co.nz/landing-pages/taupo-resin-injection/): In the past Mainmark Queenstown used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Hamilton Resin Injection](https://mainmark.co.nz/landing-pages/hamilton-resin-injection/): In the past Mainmark Taupo used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [North Shore Auckland Resin Injection](https://mainmark.co.nz/landing-pages/north-shore-auckland-resin-injection/): In the past Mainmark Hamilton used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Tauranga Resin Injection](https://mainmark.co.nz/landing-pages/tauranga-resin-injection/): In the past Mainmark Hamilton used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Mt Maunganui Resin Injection](https://mainmark.co.nz/landing-pages/mt-maunganui-resin-injection/): In the past Mainmark Tauranga used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Rotorua Resin Injection](https://mainmark.co.nz/landing-pages/rotorua-resin-injection/): In the past Mainmark Mt Maunganui used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Hibiscus Coast Resin Injection](https://mainmark.co.nz/landing-pages/hibiscus-coast-resin-injection/): In the past Mainmark Rotorua-resin-injection used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [West Auckland Resin Injection](https://mainmark.co.nz/landing-pages/west-auckland-resin-injection/): In the past Mainmark Hibiscus Coast used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [East Auckland Resin Injection](https://mainmark.co.nz/landing-pages/east-auckland-resin-injection/): In the past Mainmark West Auckland used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Dunedin Resin Injection](https://mainmark.co.nz/landing-pages/dunedin-resin-injection/): In the past Mainmark East Auckland used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Sumner Resin Injection](https://mainmark.co.nz/landing-pages/sumner-resin-injection/): In the past Mainmark Dunedin used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Woolston Resin Injection](https://mainmark.co.nz/landing-pages/woolston-resin-injection/): In the past Mainmark Sumner used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Parklands Resin Injection](https://mainmark.co.nz/landing-pages/parklands-resin-injection/): In the past Mainmark Woolston used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Hoon Hay Resin Injection](https://mainmark.co.nz/parklands-resin-injection-2/): In the past Mainmark Hoon Hay used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Somerfield Resin Injection](https://mainmark.co.nz/landing-pages/somerfield-resin-injection/): In the past Mainmark Hoon Hay used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Spreydon Resin Injection](https://mainmark.co.nz/landing-pages/spreydon-resin-injection/): In the past Mainmark Somerfield used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Redcliffs Resin Injection](https://mainmark.co.nz/landing-pages/redcliffs-resin-injection/): In the past Mainmark Spreydon used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Scarborough Resin Injection](https://mainmark.co.nz/landing-pages/scarborough-resin-injection/): In the past Mainmark Redcliffs used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Marshland Resin Injection](https://mainmark.co.nz/marshland-resin-injection/): In the past Mainmark Marshland used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [New Brighton Resin Injection](https://mainmark.co.nz/landing-pages/new-brighton-resin-injection/): In the past Mainmark Marshland used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Napier Resin Injection](https://mainmark.co.nz/landing-pages/napier-resin-injection/): In the past Mainmark New Brighton used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Newmarket Underpinning](https://mainmark.co.nz/landing-pages/newmarket-underpinning/): With a sound knowledge of Burnside unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Belfast Underpinning](https://mainmark.co.nz/landing-pages/belfast-underpinning/): With a sound knowledge of Burnside unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Lower Hutt Underpinning](https://mainmark.co.nz/landing-pages/lower-hutt-underpinning-2/): With a sound knowledge of Belfast unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Kaikoura Underpinning](https://mainmark.co.nz/landing-pages/kaikoura-underpinning/): With a sound knowledge of Lower Hutt unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Fendalton Underpinning](https://mainmark.co.nz/fendalton-underpinning/): With a sound knowledge of Fendalton unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Feilding Underpinning](https://mainmark.co.nz/landing-pages/feilding-underpinning/): With a sound knowledge of Fendalton unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Papakura Underpinning](https://mainmark.co.nz/landing-pages/papakura-underpinning/): With a sound knowledge of Feilding unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Whanganui Underpinning](https://mainmark.co.nz/landing-pages/whanganui-underpinning/): With a sound knowledge of Papakura unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Mt Eden Underpinning](https://mainmark.co.nz/landing-pages/mt-eden-underpinning/): With a sound knowledge of Avalon unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Remuera Underpinning](https://mainmark.co.nz/remuera-underpinning/): With a sound knowledge of Remuera unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Addington Underpinning](https://mainmark.co.nz/landing-pages/addington-underpinning/): With a sound knowledge of Remuera unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Invercargill Underpinning](https://mainmark.co.nz/landing-pages/invercargill-underpinning/): With a sound knowledge of Addington unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Burnside Underpinning](https://mainmark.co.nz/burnside-underpinning/): With a sound knowledge of Burnside unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Takapuna Underpinning](https://mainmark.co.nz/landing-pages/takapuna-underpinning-2/): With a sound knowledge of Belmont unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Birkdale Underpinning](https://mainmark.co.nz/landing-pages/birkdale-underpinning/): With a sound knowledge of Takapuna unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Avondale Underpinning](https://mainmark.co.nz/landing-pages/avondale-underpinning/): With a sound knowledge of Birkdale unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Waterloo Underpinning](https://mainmark.co.nz/landing-pages/waterloo-underpinning/): With a sound knowledge of Avondale unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Canterbury Underpinning](https://mainmark.co.nz/landing-pages/canterbury-underpinning/): With a sound knowledge of Waterloo unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Rothesay Bay Underpinning](https://mainmark.co.nz/landing-pages/rothesay-bay-underpinning/): With a sound knowledge of Canterbury unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Avalon Underpinning](https://mainmark.co.nz/landing-pages/avalon-underpinning/): With a sound knowledge of Rothesay Bay unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Glendene Underpinning](https://mainmark.co.nz/landing-pages/glendene-underpinning/): With a sound knowledge of East Auckland i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Cornwallis Underpinning](https://mainmark.co.nz/landing-pages/cornwallis-underpinning/): With a sound knowledge of Glendene i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Henderson Underpinning](https://mainmark.co.nz/landing-pages/henderson-underpinning/): With a sound knowledge of Cornwallis i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Bayswater Underpinning](https://mainmark.co.nz/landing-pages/bayswater-underpinning/): With a sound knowledge of Henderson i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Belmont Underpinning](https://mainmark.co.nz/landing-pages/belmont-underpinning/): With a sound knowledge of Bayswater i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Taupo Underpinning](https://mainmark.co.nz/landing-pages/taupo-underpinning/): With a sound knowledge of Milford unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Tauranga Underpinning](https://mainmark.co.nz/landing-pages/tauranga-underpinning/): With a sound knowledge of Taupo unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Mt Maunganui Underpinning](https://mainmark.co.nz/landing-pages/mt-maunganui-underpinning/): With a sound knowledge of Tauranga unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Rotorua Underpinning](https://mainmark.co.nz/landing-pages/rotorua-underpinning/): With a sound knowledge of Mt Maunganui unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Whangarei Underpinning](https://mainmark.co.nz/landing-pages/whangarei-underpinning/): With a sound knowledge of Rotorua i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [North Shore Auckland Underpinning](https://mainmark.co.nz/landing-pages/north-shore-auckland-underpinning-2/): With a sound knowledge of Whangarei i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [West Auckland Underpinning](https://mainmark.co.nz/landing-pages/west-auckland-underpinning/): With a sound knowledge of North Shore i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Hibiscus Coast Underpinning](https://mainmark.co.nz/landing-pages/hibiscus-coast-underpinning/): With a sound knowledge of West Auckland i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [East Auckland Underpinning](https://mainmark.co.nz/landing-pages/east-auckland-underpinning/): With a sound knowledge of Hibiscus Coast i unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Sumner Underpinning](https://mainmark.co.nz/landing-pages/sumner-underpinning/): With a sound knowledge of Glen Eden unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Marshlands Underpinning](https://mainmark.co.nz/landing-pages/marshlands-underpinning/): With a sound knowledge of Sumner unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Parklands Underpinning](https://mainmark.co.nz/landing-pages/parklands-underpinning/): With a sound knowledge of Marshlands unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Redcliffs Underpinning](https://mainmark.co.nz/landing-pages/redcliffs-underpinning/): With a sound knowledge of Parklands unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Scarborough Underpinning](https://mainmark.co.nz/landing-pages/scarborough-underpinning/): With a sound knowledge of Redcliffs unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Woolston Underpinning](https://mainmark.co.nz/woolston-underpinning/): With a sound knowledge of Woolston unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Somerfield Underpinning](https://mainmark.co.nz/landing-pages/somerfield-underpinning/): With a sound knowledge of Woolston unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Spreydon Underpinning](https://mainmark.co.nz/landing-pages/spreydon-underpinning/): With a sound knowledge of Somerfield unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Hoon Hay Underpinning](https://mainmark.co.nz/landing-pages/hoon-hay-underpinning/): With a sound knowledge of Spreydon unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [New Brighton Underpinning](https://mainmark.co.nz/landing-pages/new-brighton-underpinning/): With a sound knowledge of Hoon Hay unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Milford Underpinning](https://mainmark.co.nz/landing-pages/milford-underpinning/): With a sound knowledge of New Brighton unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Havelock North Underpinning](https://mainmark.co.nz/landing-pages/havelock-north-underpinning/): With a sound knowledge of Northland's unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Lower Hutt Underpinning](https://mainmark.co.nz/landing-pages/lower-hutt-underpinning/): With a sound knowledge of Havelock North unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Hastings Underpinning](https://mainmark.co.nz/landing-pages/hastings-underpinning/): With a sound knowledge of Lower Hutt unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Napier Underpinning](https://mainmark.co.nz/landing-pages/napier-underpinning/): With a sound knowledge of Hastings unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [North Shore Auckland Underpinning](https://mainmark.co.nz/landing-pages/north-shore-auckland-underpinning/): With a sound knowledge of Napier unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Kohimarama Underpinning](https://mainmark.co.nz/kohimarama-underpinning/): With a sound knowledge of Kohimarama unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [St Helliers Underpinning](https://mainmark.co.nz/landing-pages/st-helliers-underpinning/): With a sound knowledge of Kohimarama unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Titirangi Underpinning](https://mainmark.co.nz/landing-pages/titirangi-underpinning/): With a sound knowledge of St Helliers unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Glen Eden Underpinning](https://mainmark.co.nz/glen-eden-underpinning/): With a sound knowledge of Glen Eden unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Queenstown Underpinning](https://mainmark.co.nz/queenstown-underpinning/): With a sound knowledge of Queenstown Underpinning unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Takapuna Underpinning](https://mainmark.co.nz/landing-pages/takapuna-underpinning/): With a sound knowledge of Queenstown Underpinning unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Parnell Underpinning](https://mainmark.co.nz/landing-pages/parnell-underpinning/): With a sound knowledge of Bay of Plenty unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Devonport Underpinning](https://mainmark.co.nz/landing-pages/devonport-underpinning/): With a sound knowledge of Parnell's unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Ponsonby Underpinning](https://mainmark.co.nz/landing-pages/ponsonby-underpinning/): With a sound knowledge of Devonport's unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Hamilton Underpinning](https://mainmark.co.nz/landing-pages/hamilton-underpinning/): With a sound knowledge of Ponsonby unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Remuera Underpinning](https://mainmark.co.nz/landing-pages/remuera-underpinning/): With a sound knowledge of Hamilton unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Cost of Underpinning Auckland 2025](https://mainmark.co.nz/landing-pages/cost-of-underpinning-auckland-2025/): In the past Mainmark used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Cost of Underpinning Christchurch 2025](https://mainmark.co.nz/landing-pages/cost-of-underpinning-christchurch-2025/): In the past Mainmark Auckland used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Cost of Underpinning Wellington 2025](https://mainmark.co.nz/landing-pages/cost-of-underpinning-wellington-2025/): In the past Mainmark Christchurch used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Auckland resin injection](https://mainmark.co.nz/landing-pages/auckland-resin-injection-repairs/): In the past Mainmark used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Christchurch resin injection](https://mainmark.co.nz/auckland-resin-injection-repairs-2/): In the past Mainmark Christchurch used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Wellington resin injection](https://mainmark.co.nz/wellington-resin-injection/): In the past Mainmark Wellington used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Cost of Underpinning 2025](https://mainmark.co.nz/the-cost-of-underpinning-2025/): In the past Mainmark used the Uretek® resin injection methods. This expanding resin was primarily a slab lifting technology and had been used extensively for raising, re-levelling, re-supporting and strengthening moving and sunken structures on or in the ground. - [Hawke's Bay  Underpinning](https://mainmark.co.nz/landing-pages/hawkes-bay-underpinning-subsidence-repair/): With a sound knowledge of Taranaki's unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Southland Underpinning](https://mainmark.co.nz/landing-pages/southland-underpinning-subsidence-repair/): With a sound knowledge of Hawkes-Bay unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Gisborne Underpinning](https://mainmark.co.nz/landing-pages/gisborne-underpinning-subsidence-repair/): With a sound knowledge of Southlands unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Nelson Underpinning](https://mainmark.co.nz/landing-pages/nelson-underpinning-subsidence-repair/): With a sound knowledge of Gisbornes unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Tasman Underpinning](https://mainmark.co.nz/landing-pages/tasman-underpinning-subsidence-repair/): With a sound knowledge of Nelsons unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [West Coast Underpinning](https://mainmark.co.nz/landing-pages/west-coast-underpinning-subsidence-repair/): With a sound knowledge of Tasmans unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Rosedale Underpinning](https://mainmark.co.nz/rosedale-underpinning-subsidence-repair/): With a sound knowledge of Rosedales unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. - [Waikato Underpinning](https://mainmark.co.nz/waikato-underpinning/): With a sound knowledge of Waikato's unique local conditions, Mainmark utilises its Teretek® engineered resin injection solution to effectively raise, re-level, and re-support footings under a home. --- # # Detailed Content ## Pages --- ## Projects --- ## News --- ## Landing Pages ---