COVID-19: your health and safety is our concern.

Mainmark has recommenced regular site operations and our offices across NZ are now open. Where appropriate our office staff are working from home. We are available to assist with all new enquiries and have technical or planning discussions in relation to existing projects via email, phone or video conference. Rest assured that we are able to assist in reviewing the subsidence problems around your home or business. Contact us now to set up a FREE virtual site inspection.

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Keyhole surgery for your home. Our non-invasive technologies are designed for injection at the greatest point of impact to raise, re-level and re-support sunken homes with less mess, less disruption and less cost. Fill in the form on the right to book a FREE virtual site inspection.

Mainmark has raised, re-levelled and re-supported homes and buildings for over 25 years, delivering successful solutions to thousands of residential homes and hundreds of non-residential projects internationally, including Australia, New Zealand, Japan and UK.

Sinking floors, paths and driveways, cracked walls, jamming doors and windows can all be indicators of structural damage. Causes are various and include; building subsidence, bearing on unstable or weak ground, a broken pipe causing erosion, moisture changes in clay soil, and earthquake liquefaction. Our solutions are cutting edge and the modern answer to the traditional way to underpin; it is like keyhole surgery compared to concrete underpinning. Our alternatives to underpinning are not just for concrete slab floors. We can underpin, raise and re-level strip footings and raft slabs, plus we can infill slabs and driveways. We are experienced in a number of ground engineering techniques – including, in the past Uretek, now our proprietary Teretek engineered resin solution and JOG Computer Controlled Grouting – all non-invasive methods that are cost and time efficient.

What would I require for a virtual site inspection?

A device that supports any of the following applications: Zoom, Skype, Whatsapp, Facetime

Additionally, for the virtual site inspection to be conducted quickly and smoothly, it would be useful if you can have some of the following information available for the affected property:
  • Site photos and drawings
  • Engineers or builders report
  • Are there any wall cracks internally/externally?
  • Doors and/or windows jamming?
  • Details of the wall cladding type (brick veneer, timber weatherboard, plaster, concrete etc.)
  • Are there existing internal/external piles?
  • Is the foundation concrete?



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Level Correction, Ground Improvement and Strengthening 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.

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Cost and time efficient, non-invasive and fully consentable 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.

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Ensure minimal disruption and prevent further damage Our technologies and qualified technicians ensure minimal disruption and prevent further damage while re-levelling your home in a quick and timely manner.

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Choose Us

Largest and trusted re-levelling company in New Zealand Mainmark is the largest and trusted re-levelling company in New Zealand – we will have you back to level in no time.

Cost effective – no hidden fees or extra costs

Non-invasive – our process involves keyhole surgery, hence no major excavations

Resident friendly – work is carried out with minimal disruption, in most cases you won’t even need to move out!

Time efficient – on average we can get your home back to level in 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 come backed up with 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

“When I found we had to re-level our house I did alot of research.
Mainmark allowed us to stay in the house, which was great.
Our gardens weren’t dug up and the driveway was left alone.
Mainmark really made a difference.”

Bob, Tai Tapu, Christchurch

“We are so pleased with Mainmark’s efforts in levelling our garage.
There was little disruption and your methods saved me from having
to completely clean out the garage. The team were good to work with
and show a commitment to ‘sorting out problems’. Well done.”

Marlene and Don, Christchurch

“The work done was superb. It finished so well
that my wife thought you hadn’t been there that day.
Excellent work and a relief for us.”

Graeme, Auckland

Get peace of mind with Mainmark.

Feel free to contact our customer service centre on NZ 0800 873 835 for obligation free advice.