Foundation Subsidence


Foundation Subsidence

Footings and foundations aren’t necessarily the first aspects of a house that you think will have issues. It’s usually, the more cosmetic areas that are obvious such as wear and tear inside the property.

But when it comes to potential problems with a house, they don’t get much worse than sinking foundations,especially if not identified quickly or treated correctly.

Foundation subsidence problems are created by weak ground that cannot support the weight of structures or floors above it. This is when they start to subside and cause major property hazards.

There are many different reasons for weak ground, both natural and man-made. Loosely packed soils or sand, or even human activities as excavating and drilling techniques, can cause issues.

Over the last decade, foundation subsidence has cost the UK economy billions of pounds, making it the most damaging geo-hazard in Britain today, and is expected to affect as many as one in five homes in England and Wales in the coming years.

What does foundation subsidence mean?

Subsidence, which is the gradual downward movement or sinking of an area of land results in your home moving, sinking in one area, or across the entire foundation footprint.

Sinking floors, cracks in walls, paths and driveways and jammed or lose windows & doors can all be the first signs of foundation subsidence.

With Mainmark’s range of cost effective, non-invasive solutions, we can work with you to make the whole rectification process less stressful; assessing damage, fixing the ground, and allowing you to live happily in your home again.

What are the likely causes of structural subsidence?

Some homes are at a greater risk than others when it comes to ground sinking. There are also many geological, man-made and seasonal impacts that can make your home more likely to need foundation repair methods.

Some include:

  • Clay soil can shrink, crack and shift during hot weather, and then expand during wetter seasons.
  • After a drought, sandy or fine gravel soil is much drier, causing it to move which can impact building footings
  • Trees and shrub roots can also be a factor, particularly if they’re close to property foundations.
  • Leaking drains and water mains can wash away or soften soil, causing it to compact under foundation weight.
  • Flood water causing the ground to saturate house foundations and in turn cause ground movement.
  • Liquid, gas or mineral resources being removed from the ground affecting stability.
  • Natural causes including erosion and
  • Vibrations caused by heavy road traffic, machinery or excavation.
  • Local mining activity can cause ground instability and voids.
  • Older properties may have shallower footings or foundations.

How Mainmark can help fix the problem?

If you think your house could be subsiding, have uneven foundations or need structural repairs, you should first contact your home insurer and then Mainmark to assess the problems and advise on any structural repairs.

Mainmark are ground engineering specialists with more than 20 years’ international experience in working on subsidence problems in residential and commercial properties.

Benefits of Mainmark’s methods:

  • No mess – there is little if no dust, water, or anything else to clean up
  • There is minimal disruption to the home owner with our subsidence repair methods
  • Techniques are non-invasive: floors are not taken up or grounds excavated
  • We don’t cause further damage to the house or garden
  • With simple jobs, residents can usually stay in the home and may not even need to move any furniture
  • Most small residential jobs are completed in just a day
  • The products and techniques we use are environmentally inert

Our methods used on homes:

Mainmark’s new engineered resin injection solution

Internationally, Mainmark has led the way for over 20 years, offering some of the most advanced resin injection and grout solutions. Teretek from Mainmark is our proprietary solution that utilises an injection delivery method developed by Mainmark to raise, re-level, and re-support homes, commercial buildings, concrete slabs/driveways and many other above-ground structures.

Teretek engineered resin injection solution can help solve foundation ground subsidence and the resulting problems such as sinking and cracked floors, cracked walls, or doors and windows that won’t close properly.

Advanced and Proven Technology for Re-levelling Large and Complex Structures

Initially developed and used in earthquake prone regions of Japan and New Zealand, our JOG Computer- award-winning Controlled Grouting is a grouting technology that strengthens ground beneath structures such as large homes or multi-tenanted residential buildings. Using cement grout injection under integrated computer control, it is an extremely precise method for stabilising soils, consolidating weak ground and lifting foundations to deliver specific, engineered outcomes, regardless of complexity.




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Mainmark United Kingdom
Unit 8,
6 Erica Road,
Stacey Bushes Industrial Estate,
Milton Keynes,
MK12 6HS,
United Kingdom

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