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Protect Your Biggest Asset From Subsidence


Residential solutions

Since 1989, Mainmark has raised, re-levelled and re-supported homes and other residential buildings, delivering successful solutions to thousands of properties.

Our ground improvement and level correction methods can address foundation subsidence and are effective for helping to fix cracks in walls or re-level sunken floors in homes of any size. Our solutions are also used for slab lifting foundation slabs and large driveways.

Problems we solve
for our clients

House Subsidence

Non-invasive subsidence treatment for your home

Foundation Subsidence

Strengthening your homes foundations without the mess

Cracked Walls

Fast, cost effective & non-invasive subsidence solutions to fix cracked walls

Sinking Floors or Slabs

Fast, clean and non-invasive lifting of sinking floors and slabs

Jammed Doors or Windows

Our solutions are more cost-effective, with minimal disruption to the area

Clay shrinkage

Quick correction of building subsidence caused by clay shrinkage

How we get your home back to level in as little as a day.

Mainmark’s industry
leading technologies


Our Teretek® technology provides a solution to address subsided structures, improve ground, and fill voids.

Learn more


Our Terefil® technology provides an advanced lightweight cellular concrete for soil replacement, large void filling, and pipe abandonment.

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JOG Computer-Controlled Grouting

Our JOG technology is a state of the art, computer controlled, multipoint injection system.

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Permeation Grouting

Permeation grouting is the most widely used pressure grouting technique that stabilises soil prior to excavation or construction.

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Mainmark’s specialised
in-house solutions

Ground Improvement

Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction.


We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.

Void Filling

Comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts.

Slab Lifting

Our non-invasive and cost-effective solution is a safe way of re-levelling concrete slabs with soil settlement or subsidence problems.

Need help?

Need help with a project? Contact us today.


© 2024 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

Ground Improvement



Subsidence Repair

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