Crawley · West Sussex
Subsidence repairs in Crawley
Tapered cracks around the windows or doors of a Crawley home are worth taking seriously without assuming the worst. In most cases the cause can be found and removed, and the house then needs crack stitching and making good rather than new foundations.
Guide price from£2,800per property inc VAT

- Postcodes
- RH10, RH11
- Population
- about 120,000
- Area
- West Sussex
- Pricing region
- South East
How do local ground conditions affect subsidence repairs in Crawley?
Crawley is in West Sussex and takes in postcode districts RH10, RH11. About 120,000 people live there. Nearby places we cover include Horley (4 miles), Horsham (7 miles) and East Grinstead (8 miles).
West Sussex is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in West Sussex: Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.
Subsidence repairs prices in Crawley
These are guide prices for Crawley, using South East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's investigation and report | £560 – £2,250 | per property |
| CCTV drain survey (common first check) | £170 – £390 | per survey |
| Typical repair once the cause is dealt with: crack stitching and making goodest. | £2,800 – £13,400 | per property |
| Foundation strengthening where it is needed (see underpinning) | £1,100 – £3,900 | per metre of wall |
How we usually approach subsidence repairs
Foundation strengthening
Where the ground cannot be made stable, the load is carried down to firmer soil by underpinning, a beam-and-base scheme, mini-piles or resin injection, depending on the soil and access. It is designed by an engineer and is the exception, not the rule.
Best for: Ongoing movement where removing the cause has not worked
Remove the cause, then repair
Most subsidence is dealt with this way. The drain is repaired or the vegetation managed, the house is watched to confirm it has stabilised, and then the cracks are stitched, repointed and made good inside. It is the least disruptive route and usually the cheapest.
Best for: Clay movement or drain leaks where the cause can be removed
What happens during subsidence repairs, step by step?
Send photos or call
Send photos of the cracks with a coin or tape for scale, and say when you first noticed them. We give a free initial assessment and suggest whether an engineer, a drain survey or your insurer comes first.
Deal with the cause
Drains are repaired, vegetation is managed on the engineer’s advice, or a foundation scheme is designed if nothing else will work. Where monitoring is recommended, readings run for several months to show the movement has stopped.
Written quote
We price the agreed repair and confirm a fixed price in writing once it is specified. If there is an insurance claim, we can price to the loss adjuster’s or engineer’s schedule instead of our own scope.
What to look for before calling about subsidence repairs
- Wallpaper rippling or tearing where the wall meets the ceiling
- A gap opening between the skirting board and the floor
- Doors and windows that start to stick or no longer close
Rules for subsidence repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about subsidence repairs in Crawley
What is the price of subsidence repairs in Crawley?
Guide prices for subsidence repairs in Crawley start from about £2,800 per property, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out subsidence repairs in Crawley?
We do. Crawley and the surrounding area are covered, including nearby Horley and Horsham. A free initial assessment from your photos is the first step.
Does the ground around Crawley cause cracking?
North West Sussex around Crawley and Horsham sits on Weald Clay, the South Downs are chalk, and the coastal plain has brickearth and gravels. The Weald Clay is prone to shrink-swell movement near trees. Only an investigation can say why a particular building has moved.
Do you need to visit before giving a price?
Not at first. We give a free initial assessment from your photos or a call, and a no-obligation written quote once the scope is clear. A fixed price follows in writing once the repair is specified, which normally needs a survey.
Will past subsidence affect my home insurance?
It can, because insurers ask about previous subsidence at renewal or when you switch. Staying with the insurer who handled a claim is often simplest. Answer any new insurer’s questions honestly and keep the repair records, which show the problem was dealt with.
More repairs we carry out in Crawley
- Lintel replacement
- Structural surveys and crack monitoring
- Underpinning
- Roof structure repairs
- Wall tie replacement
Subsidence repairs near Crawley
Worried about movement at your Crawley property? Share photos or ring for a free initial assessment before you spend anything on investigations.