0800 873 835
New Zealand
Award winning expertise in earthquake repair and remediation.
Don’t waste any more time when Mainmark has the solutions to give you peace of mind!
Get your home back to level and strengthen the ground underneath. We are experts in earthquake remediation having helped thousands of New Zealand buildings get back to level.
The traditional method of house re-levelling was concrete underpinning. This method has major drawbacks, being a lengthy and messy process.
Our methods are state-of-the-art and likened to keyhole surgery. For homes where there has been seismic activity we primarily use the JOG method which is a computerised system of grout injection. It enables pin-point level correction delivering a gentle and accurate lift to your home.
Alternatively we can use our proprietary Teretek® engineered resin, which is injected into the ground beneath your home.
Mainmark’s proven methods deliver accurate level correction and ground strengthening. Solutions are cost and time efficient and they come with a 50 year product warranty.
Arrange a site assessment in 3 simple steps:
Step 1
Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.
Step 2
Our friendly customer service team will be in touch to schedule a site assessment that suits you.
Step 3
One of the Mainmark experts will visit your commercial property, assess the damage, and ascertain the likely cause. They will establish the approach needed, creating a plan specific to the needs of your building and provide you with a detailed quote.
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Solutions
Mainmark offers a great range of solutions and have helped thousands of Christchurch homes and buildings affected by the earthquakes with level correction and ground improvement.
Methods
Our technologies and qualified technicians ensure minimal disruption and prevent further damage while re-levelling your home in a quick and timely manner.
Quality
We provide high quality level correction services that are cost and time-efficient, non-invasive, fully consentable, insurable, and backed with a 50-year product warranty.
Hassle free
Unlike many level correction processes, our methods are very resident-friendly.
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We use non-invasive techniques likened to keyhole-surgery, so we don’t tear up floors and excavate ground (the injection holes can be as small as 6mm).
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We are very quick Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
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We provide peace of mind our resin injection method is backed by an industry leading 50 year product warranty. We are also a licenced builder that provides Home Warranty Insurance/Builders Warranty Insurance where required.
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Video
Teretek ®
Our Teretek® technology provides a solution to address subsided structures, improve ground, and fill voids.
Terefil®
Our Terefil technology provides an advanced lightweight cellular concrete for soil replacement, large void filling, and pipe abandonment.
JOG Computer-Controlled Grouting
Our JOG technology is a state of the art, computer controlled, multipoint injection system.
Benefits & Features
Mainmark’s Solutions & Technologies
Fast
Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.
Environmentally Inert
Our technologies use an inert material that is non-toxic and does not leach into the environment or affect the treated area.
Non-Invasive
Our solutions are of surgical nature compared to traditional methods.
Cost-Effective
Compared to traditional methods, our solutions are more cost-effective, with minimal disruption to the area.
Projects
Featured New Zealand Projects
© 2025 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.
Mainmark Ground Engineering (NZ) Ltd
