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, with minimal disturbance to you and your property, and they come with a 50 year product warranty.
To help you discover if the cracks in walls around you home could be due to subsidence, we’ve developed this handy tool. Visit our crack gauge page to download our FREE crack gauge and start measuring and monitoring the wall cracks around your home now!
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.
We provide high quality level correction services that are cost and time efficient, non-invasive, fully consentable and insurable and come backed-up with a 50 year product warranty.
Our technologies and qualified technicians ensure minimal disruption and prevent further damage while re-levelling your home in a quick and timely manner.
Mainmark is the largest and trusted re-levelling company in New Zealand – we will have you back to level in no time.
Cost effective – compared to traditional underpinning methods; no hidden fees or extra costs
Non-invasive – our processes are likened to keyhole surgery, hence no major excavations
Resident friendly – work is carried out with minimal disruption, in many cases you won’t even need to move out!
Time efficient – on average we can get your home back to level in as little as a day or within 1–2 weeks depending on the technologies we utilise
Worry-free – all our products and services are consentable and our Teretek comes backed by a 50-year product warranty for added peace of mind
Accurate – using state of the art technology our qualified technicians can get the level accuracy to within millimetres
Reputable – our specialised methods have been mastered for over 25 years with thousands of satisfied customers
JOG Computer-Controlled Grouting
JOG is a computer-controlled grouting re-leveling method that provides a very gentle lift, over large areas. A number of small holes are drilled, with grout delivered at multiple injection sites. Layers of grout are built up progressively to lift and ‘float’ the structure at specific points, bringing it back to level. JOG uses a computer-controlled system, delivering a continuous and balanced lift. The JOG method is a non-invasive solution for correcting subsidence of buildings, floors and other structures – it’s a time efficient and cost effective method.Learn more
Teretek Resin Injection
This method injects expanding structural resins into very small holes that have been drilled into the concrete slab. An irreversible reaction occurs as the injected material mixes, causing it to expand and set. The mixture fills any voids caused by unsettling, strengthening and compacting weak ground. Finally, the force generated by the expansion lifts the home where required. We utilise our proprietary engineered resin solution, Teretek, perfected by Mainmark after many years experience in fixing foundation ground issues and our knowledge of the unique local conditions. It has been used extensively in Christchurch earthquake repairs. Likened to keyhole surgery, this is a non-invasive, cost and time effective solution to get you back to level.Learn more
Teretek® Provides Ground Improvement and Reduces Lateral Spreading at Christchurch Residence
Grout Injections Improve Earthquake Resilience For Christchurch Apartment Building
“Thanks very much to your guys who came as planned on Tuesday and worked very thoroughly and efficiently to get the job done. It wasn’t possible to make the floor perfectly flat but it’s as good as we could have expected and I am pleased with the results. Your guys were very professional & personable; would you please pass on my thanks top them for a job well done. I reckon it’s been worth the wait.
Exceptional value for the results achieved.”
Malcolm, Mission Bay, NZ. May 2019
“From the moment we first contacted Mainmark, they have been an absolute pleasure to work with. A highly skilled, professional, friendly and knowledgeable team from marketing and sales right through to the personnel on site reassuring us at every step of the way, going the extra mile from the outset together with negotiating and coordinating with the Insurance Company. I also can’t praise the men on site enough for their meticulous attention to detail and attitude in appalling weather conditions. Moving a 5 ton + chimney 170 mms without any cracking in a few hours. A miracle!
Thank you J—- and all at Mainmark.”
Andy, Warkworth, NZ. June 2019
“I’m pleased to recommend Mainmark, who recently did some groundwork engineering for me. They were technically capable in a field where there are not many operatives in this country and, in addition, they were considerate and thorough. The Company went beyond their original brief to deliver the best possible service. Thank you.”
Alan, Puhoi Orewa, North Island, NZ. March 2019
Still have questions?
Feel free to contact our customer service centre on NZ 0800 873 835 for obligation free advice. Alternatively refer to our FAQ section.