We provide premium underpinning and crack stitching as a result of various signs of subsidence, such as ​cracks in the walls, ceilings, outside brickwork​ and more.


What Is Subsidence


One of our key areas of work lies in repair issues as a result of subsidence and movement. Subsidence occurs when the ground underneath your home sinks and causes the building foundations to move downwards. We provide premium underpinning and crack stitching as a result of various signs of subsidence, such as ​cracks in the walls, ceilings, outside brickwork​ and more.


Subsidence can be managed by ​underpinning​ – a highly specialised method which strengthens below ground level to solidify foundations of a building. Underpinning can be performed on current or previously existing subsidence in order to prevent further movement. Although it can be a lengthy and costly process, it will secure the building in position by digging holes beneath the existing foundations and filling them with concrete. The treatment lasts for generations and locks everything into place.

Resin ground stabilisation​ can also be used to treat building movement. Soil injection is a method used to solidify existing soil beneath your home, through a combination of silicate, polyurethane, and special binders which are injected into the substrate. Their high-strength properties provide super strong and reliable stability for properties of all types.

Crack stitching​ is another great option for cracks as a result of subsidence exceeding 3mm. The process involves the use of a large grout gun which is placed carefully in between the gaps of a wall, followed by stitching rods and cement work to fully seal and finalise the treatment. This will help strengthen the wall, prevent further movement or sinkage, and protect against penetrating damp.

Subsidence Repair Solutions

What properties are most at risk of subsidence?

There are numerous factors which impact what types of properties are affected by subsidence. Some examples being:

  • Trees: ​drains moisture from the soil beneath your home
  • Property aging:​ period properties with shallow and insufficient foundations
  • Dry climate: ​hot climates drying up the soil
  • Leaks:​ causing washaway and sinkage of soil

If you have plans to add a new story or extension to your home, it is absolutely essential to underpin the foundations to support the extra weight. Subsidence cases can be extremely complex, requiring expert help, evidence and data to fully analyse the process and plan the best course of action for your property.

Subsidence FAQs

We’re here to help! Here you’ll find the answers to the questions we get asked the most about subsidence. If you would like to know more, get in touch for a free consultation.

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    How much does subsidence cost to repair?

    The repair costs of subsidence depend on factors such as the extent of the subsidence and the type of underpinning required to rectify the problem. Overall, however, the cost of subsidence repair typically starts from £550.00 per linear metre.

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    How much does subsidence devalue a property by?

    If underpinning is undertaken to the correct procedures, with the correct structural calculations and building control consent, it is unlikely to have a negative impact on the property value. However, if underpinning is not conducted correctly, it may not resolve the damage, or cause further damage, which will likely substantially devalue a property.

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    How do I check for subsidence in my house?

    Subsidence causes cracking on walls, sloping floor and door and windows sticking as frame warp. In addition, cracks are usually diagonal in shape, thicker than a 10p coin (3mm) and narrow at the bottom and wider at the top. Subsidence caused cracks are often able to be seen both on the inside and outside of a property and if they are under wallpaper may cause visible wrinkling.

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    What is subsidence and what does it mean?

    Subsidence is the gradual or sudden sinking of a ground’s surface in a direct downward fashion and without any horizontal movement. Subsidence can be a result of both human activities or natural causes.

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    How do you fix subsidence?

    Subsidence can be remedied and repaired via a variety of methods such as demolition and rebuilding, underpinning, resin injection and more, depending on the cause and extent of the subsidence. For precise advice on how a precise subsidence damage needs to be be resolved, an industry professional should be contact.


We offer FREE consultations for all projects, so get started and contact us today by Email, LiveChat or Call for an in-house meeting.


We look forward to hearing from you!

45-46 The Arches, Alma Road,
Windsor, SL4 1QZ

0300 030 1822