England · South East
Structural repairs in West Sussex
Structural repairs across West Sussex: subsidence, cracks, underpinning, wall ties, lintels and claim repairs. West Sussex is one of the parts of the UK where clay soils are most likely to move with the seasons.
- Nation
- England
- Pricing region
- South East
- Towns listed
- 11
- Mining legacy
- Not a major factor
What is the ground like in West Sussex?
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.
Ground movement here is more often linked to soils, drains and trees than to mining.
What usually causes cracking in West Sussex?
Before pricing a repair in West Sussex, we look at these likely causes first.
- Clay subsoil that shrinks and swells with the seasons, especially near trees and hedges
- Infill panels and plaster cracking as a timber frame flexes
- Timber frames moving as sole plates and joints decay
- Garden and boundary walls leaning as tree roots and frost get to them
- Extensions and bays moving differently from the main house
What kind of buildings are common here?
Wealden cottages, 1930s semis and bungalows on the coast, and new-town estates in Crawley.
Which repairs do we carry out in West Sussex?
- Extension pulling away repairs
- Wall tie replacement
- Subsidence repairs
- Chimney stack repairs
- Bowing wall repairs
- Lintel replacement
- Structural surveys and crack monitoring
- Resin injection ground stabilisation
- Underpinning
- Gable end wall repairs
- Boundary and garden wall repairs
- Floor joist repairs
- Retaining wall repairs
- Concrete repairs
- Roof structure repairs
- Crack stitching
- Subsidence insurance claim repairs
- Bay window subsidence repairs
- Structural crack repairs
- Brick arch repairs
Guide prices in West Sussex
A selection of guide prices on South East rates, including VAT. Each repair page has the full table.
| Item | Guide price | Per |
|---|---|---|
| Underpinning: mass-concrete underpinning | £1,100 – £1,700 | per metre of wall |
| Resin injection ground stabilisation: resin injection ground stabilisation | £895 – £1,700 | per metre of wall treated |
| Lintel replacement: standard window or door opening | £840 – £2,800 | per opening |
| Structural surveys and crack monitoring: structural engineer's inspection and report | £560 – £2,250 | per property |
Towns we cover in West Sussex
We list 11 towns in West Sussex, covering 17 postcode districts in the BN, PO and RH postcode areas. The largest are Crawley (about 120,000 people), Worthing (about 110,000 people) and Bognor Regis (about 64,000 people). Each town page has local postcodes, nearby places and the repairs we carry out there.
- Crawley
- Worthing
- Bognor Regis
- Littlehampton
- Horsham
- Haywards Heath
- Chichester
- Burgess Hill
- East Grinstead
- Shoreham-by-Sea
- Lancing
Do repairs in West Sussex need approval?
Most crack repairs in England need no approval, but foundation and strengthening work is building work under the Building Regulations. We tell you which applies before a price is agreed.
Questions about structural repairs in West Sussex
Do you cover the whole of West Sussex?
Yes. We take enquiries from across West Sussex, including Crawley, Worthing, Bognor Regis and Littlehampton. A free initial assessment from your photos is the first step.
Is West Sussex affected by subsidence?
Shrinkable clay is widespread in West Sussex. Ground movement here is more often linked to soils, drains and trees than to mining. Whether a particular building has moved, and why, needs an investigation on site.
How much do structural repairs cost in West Sussex?
It depends on the repair. On South East rates, mass-concrete underpinning from about £1,100 per metre of wall and resin injection from about £895 per metre of wall treated, including VAT. Your written price follows photos or a survey.
What should I send for a free assessment in West Sussex?
Photos of each crack inside and out with a coin or tape for scale, a wider shot showing where it is on the building, your postcode in West Sussex, and when you first noticed it. If an insurer is involved, include the claim reference.