Contact Us – Mainmark

Slab lifting is the process of raising and re-levelling sunken or uneven concrete slabs. Mainmark lifts slabs by injecting an expanding engineered resin beneath the concrete to fill voids, strengthen the ground, and lift the slab back to level with precision.

Slab jacking (also called concrete lifting or slab raising) is a method used to lift and re-support sinking concrete. Instead of traditional cement grout (mudjacking), Mainmark uses Teretek® resin injection, which expands to compact the soil and lift the slab without adding weight.

Concrete slabs typically sink due to soil erosion, voids forming under the slab, poor soil compaction, moisture changes, heavy loads, or long-term settlement. These conditions weaken the ground and cause the slab to drop unevenly.

Mainmark uses Teretek® engineered resin, which is injected beneath the slab. The resin expands to fill voids, strengthen weak soils, and lift the slab back to level. The process is fast, clean, non-invasive, and delivered with millimetre accuracy.

Yes. Lifting a sunken slab is usually faster, cheaper, and far less disruptive than pouring new concrete. Replacement also doesn’t fix the underlying ground issues, while slab lifting addresses the cause of the sinking.

Most slab lifting jobs are completed in a few hours. There is no excavation, and the area can typically be used immediately after the work is finished.

Mainmark’s resin injection delivers long-lasting results because the resin strengthens the ground and stabilises the slab. The material is durable, water-resistant, and does not break down over time.

Yes. Slab lifting can remove trip hazards caused by uneven concrete, raised edges, or sinking slabs around driveways, paths, patios, and internal floors.

We raise, re-level and re-support:

• Driveways

• Footpaths

• Internal concrete floors

• Garage slabs

• Patio and pool surrounds

• Warehouse and commercial slabs

• Factory floors

• Hardstands

Any concrete slab that has sunk or become uneven can usually be re-levelled.

Costs vary depending on the size of the slab, the extent of sinking, access to the site, and what caused the settlement. Mainmark provides free site inspections to assess the issue and give an accurate quote.

No. Traditional mudjacking uses a heavy cement slurry, which can add weight and may cause further sinking. Mainmark’s Teretek® resin is lightweight, strong, fast-acting, and provides superior ground improvement and slab lifting results.

You should contact us if you notice:

• Uneven or sloping concrete

• Gaps between slabs and walls

• Cracks in the slab

• Trip hazards

• Sinking internal floors

• Water pooling where it shouldn’t

These are common signs of slab settlement.

No. Resin injection is non-invasive and does not require excavation, digging, or heavy machinery. Small injection points are used to treat the affected areas.

Immediately in most cases. The resin cures quickly, allowing normal use of the concrete soon after treatment.