Specialists / Serving all of the United Kingdom

Get subsidence in heritage buildings assessed across the UK

Spotting cracks in a listed or period property is unsettling. A specialist establishes what the ground is doing beneath your building, sets out the cause clearly, and recommends a repair that suits the evidence and the structure.

Request a free quote The process

Does your building show signs of ground movement?

Ground movement in a heritage building can be easy to misread. Certain crack patterns and structural shifts do need prompt attention, and the sooner a specialist assesses them, the less remedial work tends to be required.

Signs worth a specialist look

Stepped or diagonal cracking through masonry wider than 3mm, particularly at the corners of window or door openings
Cracks that are noticeably wider at one end, pointing to rotation or differential settlement in the structure
Stone or brick courses that have shifted out of alignment along a horizontal bed joint
Doors or windows that have recently dropped out of true or begun binding in their frames
Matching fractures visible on both the internal and external face of the same wall
A gap opening between an original structure and a later addition, or between a chimney breast and the main wall
Cracking that first appears or visibly widens following a prolonged dry summer, especially near mature trees

Unsure? Send us your cracks question

What triggers subsidence in the UK?

Ground conditions vary across the United Kingdom, and what drives movement in heritage buildings is not what drives it in modern construction. Specialists most frequently point to the following causes:

Clay soil contracting in dry weather, often with tree roots pulling moisture out and speeding up the process
Leaking or broken drains eroding or softening the soil around shallow historic foundations
Tree roots extracting moisture from clay close to old footings that were never designed for significant soil movement
Made ground or loosely placed fill that is still settling beneath structures built over earlier development
Shallow lime-mortared foundations that are more sensitive to ground moisture changes than modern concrete footings

How a specialist reads each warning sign

Our subsidence repair for heritage buildings

A brick manor house with stone-mullioned windows seen through the branches of a large oak tree

From first contact to finished repair

1
Describe the damage you have found
Use the form to give the property address and a short account of what you have noticed: diagonal cracks above window openings, stepped cracking in lime-jointed brickwork, a floor that has dropped toward one corner, or a door that has started to bind. Note which direction the cracking runs, roughly how wide the gaps are, and when you first saw them. Say whether the problem looks the same now or has changed. Placing a coin or pen next to the crack before photographing it helps the specialist read the size of the damage. There is no charge for the quote.
2
A specialist phones you
A heritage subsidence specialist will call you to go through what you have noticed and gather the details they need. They will want to know the age and construction of the building, the soil type beneath it if you are aware of it, whether large trees are nearby, and whether any drains or gutters have been leaking close to the affected wall. Tell the specialist at this stage if an insurer has already opened a claim.
3
Working out whether a site visit is needed
Using what you have described, the specialist decides whether a visit to the property would add useful information. If the movement appears ongoing, crack monitors can be fitted to record readings across several weeks. Those readings show whether the structure continues to move, whether clay shrinkage driven by seasonal change is responsible, or whether the building has settled into a stable state. That information determines which repair method is appropriate for the age and construction of the building.

The process