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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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Ground strengthening

Ground strengthening for commercial properties

When the ground beneath a commercial property begins to show signs of instability, it’s time to consider ground strengthening solutions. These techniques combat issues like subsidence, safeguarding the safety, stability and operational continuity of your valuable commercial buildings and the businesses inside them.

As experts in ground improvement technologies, Mainmark offers ground strengthening methods that are quick to implement, reliable and cost-effective. Our solutions:

  • Improve the soil’s load-bearing capacity and provide resilience against liquefaction
  • Fill voids in the soil under foundations, improving stability and supporting foundations
  • Lift structures, gently and accurately returning them to level

Our Teretek® resin injection, JOG computer-controlled grouting and Terefil® lightweight cementitious fill methods provide non-invasive alternatives to traditional ground improvement techniques and require no extensive digging or excavation. They are suitable for all types of commercial and residential buildings, from factories and retail sites to public buildings and social housing, as well as car parks, drives and paths. The commerical application includes airport runways, highways, rail, bridges as well as industrial plant.

Work can typically be completed within a matter of days, depending on the complexity of the project and the size of the building, with minimal disruption to occupants, operations or the public. There is no need to vacate the property while our ground-strengthening solutions are being implemented, roads are trafficable immediately.

Why is ground stabilisation required?

Ground stabilisation is a solution for subsidence, which can cause buildings to sink or lean, walls to crack and floors to become uneven. Subsidence can be caused by various natural and human-induced factors, including:

  • Drought or prolonged dry spells – During these periods, soil loses moisture and shrinks, leaving voids under the foundations.
  • Overgrowth of trees and shrubs – These can absorb moisture and dry out soil.
  • Soil erosion – This can be caused by heavy rainfall, flooding, damaged drains or broken pipes.
  • Soil decomposition – Soils with high organic content can decompose over time. This releases gases like carbon dioxide and methane and creates voids in the soil.
  • Nearby heavy traffic – Over time, the underground vibrations caused by heavy traffic can lead to soil compaction.
  • Historic mining activities – The removal of minerals or ores can leave underground voids that can cause the overlying rock and soil to collapse.

If signs of ground weakness, instability or subsidence are observed, quick action is necessary to prevent further damage. Mainmark’s ground strengthening solutions can address these problems, helping to keep your commercial property stable and secure.


Ground stabilisation technologies

Mainmark ground stabilisation technologies

Teretek® – Resin-injection for ground stabilisation

Teretek® is an engineered solution for re-levelling subsided structures that utilises a plural component, expanding polyurethane resin. The expansion force of the material results in the controlled lift of structures, with a by-product of localised bearing capacity improvement through soil densification.

Teretek® resin injection technology

Ground strengthening with JOG computer-controlled grouting

JOG computer-controlled grouting uses a multi-point injection technique to insert cementitious grout materials under foundations. It can be used under commercial buildings ranging from single-storey shops to high-rise structures. The injected materials have a controlled set time which allows for the precise lifting of a structure.

JOG computer-controlled grouting

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Mainmark technology benefits

Benefits of Mainmark’s treatments for ground strengthening


Our ground strengthening solutions can be completed within a matter of days or hours.

Immediately trafficable

Soon after work is completed, the area can be re-opened to foot traffic and vehicles.


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


Compared to other solutions, our technologies cost significantly less.

Environmentally inert

We use safe materials that are non-toxic and do not leach into the environment or affect the treated area.


Our ground strengthening solutions provide long-term performance and protection for your investment.

Soil stabilisation FAQ’s
What happens with unlevel driveways, floors and hardstand areas?

After the application of the Mainmark solution, unlevel surfaces will become aligned again as the ground underneath is strengthened and re-supported. Simple cosmetic repairs may be required.

Will there be a mess?

Very little, if any. We use Teretek® engineered Resin Injection technology, which is likened to “keyhole surgery”, or JOG Computer-Controlled Grouting, with no major excavation and minimal disruption or mess. The injection holes required are very small.

How long does it take?

Each project is different and depends on the required amount of lift, area for correction, building construction, and ground conditions. Most projects can be completed in a day or two, and we can work at night or on one area at a time, so your business can keep operating.

Do i need to send my workers home?

No, most projects don’t require you to vacate the premises or even move furniture or equipment. For the most part, you can keep operating as normal. Driveways can often be driven on in as little as 30 minutes after treatment.

What warranty will i get?

The materials we use have been developed for use underground and have been specifically engineered to resist shrinkage and deterioration. Teretek® is warranted by Mainmark for an industry-leading period of 50 years.

Is it safe and environmentally friendly?

Injected Teretek® and JOG materials are environmentally inert and have no detrimental effects on the environment.

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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© 2023 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

Mainmark Ground Engineering (UK) Ltd.

CRN: 09372443

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