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Quick Enquiry

Submit your enquiry using our online form and include a brief message about the type of issues you are experiencing. One of the Mainmark experts will contact you as soon as possible.

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Cost-Effective Infrastructure Repair

Extending the Lifespan of Utilities through Proven Ground Engineering Techniques

Extending the Lifespan of Utilities through Proven Ground Engineering Techniques

Repairing ageing and damaged infrastructure is often more cost effective than replacing it. Mainmark uses proven ground engineering and asset rehabilitation solutions and techniques. This helps asset owners, including local councils, extend the life of their utilities.

Our expertise extends to remediating assets for electricity, gas, waste management, telecommunication providers, and water authorities.


Our Solutions

When preparing to decommission or abandon below-ground assets, our Terefil® technology is an advanced lightweight cellular concrete for soil replacement, large void filling, and pipe abandonment. Teretek® improves ground beneath assets and corrects subsidence, minimising downtime and service disruption.

Our non-invasive solutions eliminate the requirement for excavation, ensuring minimal disruption to the surrounding area.

  • Correcting tilted transformer slabs
  • Mitigating risk of rocking of wind turbine base pads
  • Lifting out dips where water is ponding
  • To provide targeted ground improvement to weak sub-grade soils


Mainmark specialises in re-levelling buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.

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Ground Improvement

Mainmark specialises in advanced ground improvement methods, delivering a suite of technologies that cover densification, solidification, and soil replacement methods.

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Void Filling

Mainmark offers comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts.

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Cost Savings & Sustainable Solutions: Repairing Aging and Damaged Utilities

Features & Benefits

Mainmark’s level correction methods for utilities


Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.

Immediately Trafficable

As soon as the repair is completed, the area can be re-opened to traffic and full use.


Repairs are performed without the need for excavation, extensive disruption.


Compared to traditional methods, our solutions are more cost-effective.

Get a quote

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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© 2024 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

Mainmark Ground Engineering (NZ) Ltd





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