Service / United Kingdom subsidence repair for heritage buildings
Subsidence surveys for heritage buildings UK
Written subsidence assessments for period properties, identifying the cause and what needs to be done.
What this service covers
A subsidence survey examines a property to establish whether cracking, sloping floors or sticking doors are caused by ground movement, and if so, what is driving it. A specialist inspects the visible damage, considers the building's age, construction and ground conditions, and produces a written report setting out findings and recommended next steps. The report gives the property owner, buyer or insurer a factual account of the building's condition rather than a general area risk rating.
This service suits buyers who have received a homebuyer report flagging cracking, owners who want to know whether to involve their insurer, and landlords managing heritage stock who need a documented structural assessment. Period buildings can show cracking from several different causes, and the survey distinguishes between them. A free quote is available once the property details have been reviewed.
Subsidence surveys for heritage buildings across the UK
Specialists carry out subsidence surveys for heritage buildings across the United Kingdom, including Birmingham · Bristol · Cardiff · Leeds · Leicester · Liverpool · Manchester · Sheffield and many more areas; choose a town to find out about ground conditions there and the type of work typically required.
Does this match your building?
Diagonal cracking in brickwork or render that appeared after a prolonged dry spell and has not closed
A conveyancer or mortgage lender has flagged a subsidence risk and needs a structural assessment before exchange
You are selling and want a documented record of the property's condition before a buyer's survey raises questions
Ground conditions in the area are known to include shrinkable clay and cracking has recently appeared
A previous subsidence survey was carried out several years ago and further movement has occurred since then
Cracks that a general builder cannot confidently attribute to normal thermal movement or routine settlement
Steps in the work
External inspection
The specialist examines every outside wall, ground levels, nearby drainage and trees, recording crack widths, positions and any visible footing distress.
Internal inspection
Rooms are checked for sloping floors, sticking doors and window frames, and crack patterns, with widths and locations logged throughout.
Context assessment
Soil type, proximity of trees and the drainage condition are weighed against the building's movement indicators to identify the most likely cause.
Written report
Findings are set out in a written report explaining where movement has occurred, what is probably driving it and what the recommended next steps are.
What a subsidence survey covers
External and internal crack mapping
The specialist examines external elevations and internal walls for cracking patterns, recording width, orientation and position. Diagonal cracks at window corners, stepped cracks through brickwork and horizontal cracks along mortar courses each suggest different underlying causes. The survey maps all visible cracking against the building layout to identify where movement has originated.
Floor level and door frame checks
Uneven floors and doors or windows that have begun to stick or bind can indicate differential settlement. The specialist checks floor levels across the building and examines frames for distortion, relating any findings to the crack pattern identified on the walls.
Drainage and site conditions
Leaking drains softening the soil beneath a footing are a common contributor to subsidence. The specialist looks at drainage routes, gully conditions and any visible signs of water tracking close to the foundations. Where drainage is suspected as a factor, a CCTV investigation may be recommended as a follow-on step.
Written report and next steps
The completed report describes each area of concern, its probable cause and whether further investigation, monitoring or active repair is the appropriate response. It can be submitted to an insurer, a mortgage lender or a solicitor as a factual record of what was found and what action the specialist recommends.
What's included
- Systematic inspection of all internal and external elevations
- Crack pattern mapping with width and location recording
- Floor level observations and door and window frame checks
- Assessment of ground conditions, drainage and tree proximity
- Written report covering findings and the recommended course of action
Most residential subsidence surveys are completed in a single site visit of two to three hours. The written report typically follows within a few working days of the inspection.
Getting subsidence sorted across the UK
- A written price before work starts. Full costs are set out in writing before any work is confirmed.
- Findings recorded in writing. Written reports document cause and extent of movement for insurers and purchasers.
- Specialists who know heritage buildings. Local firms know lime mortars, rubble-stone walls and shallow foundations in older buildings.
- Your decision, your timetable. Read the quote, ask whatever you need to, and proceed only when you are ready.
Before you ask
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How is a subsidence survey different from the survey a buyer gets when purchasing a property?
A standard homebuyer report or valuation covers the whole building condition. A subsidence survey focuses specifically on crack patterns, floor levels, ground conditions and the factors likely to be driving movement. The specialist works through each of those areas in a level of detail that a general survey does not reach.
My cracks appeared after last summer's dry weather. Does that change what the survey looks at?
Dry summers cause shrinkable clay soils to lose moisture and compact, which can lower the ground beneath a footing and produce diagonal cracking. The survey takes seasonal factors into account alongside drain proximity, tree locations and foundation type when assessing the probable cause.
Will the survey report be accepted by my buildings insurer?
The written report sets out the crack pattern, probable cause and whether movement appears current or historic, supported by measurements and photographs. Most insurers require documented evidence at this level of detail when assessing a claim, though you should check what your own policy specifies.
Do I need a subsidence survey if cracks have been there for years without changing?
A survey can establish whether movement has genuinely stopped or has simply slowed. If you are selling the property or remortgaging, a written assessment of the crack history gives buyers, lenders and their solicitors a factual account of what the building has done over time.