Chepstow · Gwent
Structural crack repairs in Chepstow
Structural crack repairs for a Chepstow house are priced only once the crack has been understood. Send clear photos with something in shot for scale, and we will tell you what the pattern suggests and the sensible next step.
Guide price from£75per metre of crack inc VAT

- Postcodes
- NP16
- Population
- about 12,000
- Area
- Gwent
- Pricing region
- Wales
What is the ground like in Gwent?
Chepstow is in Gwent and takes in postcode districts NP16. About 12,000 people live there. Nearby places we cover include Monmouth (12 miles), Newport (14 miles) and Cwmbran (15 miles).
Gwent has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of Gwent, and a coal mining search is worth checking where movement is unexplained. Across Gwent, most homes are valley terraces on steep hillsides, Victorian houses in Newport and Abergavenny, and post-war estates.
Repair options we may recommend
Filling and repointing
For hairline and narrow cracks that have stopped moving, the crack line is raked out and repointed in mortar matched to the original for strength, colour and texture. Inside, plaster cracks are cut out, filled with a flexible filler and redecorated.
Best for: Cracks up to about 5 mm that are no longer moving
Rebuilding a cracked section
Where bricks have split or the wall has moved out of line, the damaged area is taken down and rebuilt, bonded into sound masonry on either side. Reclaimed or matched bricks keep the repair discreet, with temporary support used where needed.
Best for: Badly displaced or broken brickwork
What to expect when we carry out structural crack repairs
Send photos
Photograph the crack from a distance and close up, with a coin or tape measure for scale. From these we say whether it looks cosmetic, needs a visit or calls for an engineer.
Survey and record
On site we measure the width along the crack, note its pattern and check nearby drains, trees and openings. If the cause is unclear, gauges can be fixed across it and read over several months.
Deal with the cause
Leaking drains, failed ties, a sagging lintel or ground movement are put right first, sometimes through an insurance claim. Repairing a crack before its cause is fixed usually means paying for the same job twice.
Is it time for structural crack repairs? Common signs
- Doors or windows that have started sticking or no longer latch
- A crack noticeably wider at the top than the bottom, or the reverse
- Cracks that reappear in the same place after filling and painting
What should you budget for structural crack repairs in Chepstow?
These are guide prices for Chepstow, using Wales rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching with helical bars | £75 – £165 | per metre of crack |
| Single crack, outside only (up to about 2 m)est. | £370 – £830 | per crack |
| Internal making good and redecoration of the crack lineest. | £140 – £460 | per room |
Rules for structural crack repairs in Wales
In Wales, small like-for-like repairs do not usually need approval, but work that alters or strengthens the structure needs building control under the Welsh Building Regulations, and the Party Wall etc. Act 1996 can apply to shared walls.
Your structural crack repairs questions
What is the price of structural crack repairs in Chepstow?
Guide prices for structural crack repairs in Chepstow start from about £75 per metre of crack, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out structural crack repairs in Chepstow?
We do. Chepstow and the surrounding area are covered, including nearby Monmouth and Newport. A free initial assessment from your photos is the first step.
Does the ground around Chepstow cause cracking?
The valleys of Blaenau Gwent, Torfaen and Islwyn lie on the South Wales coalfield with extensive historic workings and spoil tips, while Newport and Monmouthshire have Mercia Mudstone, alluvium and Old Red Sandstone. Only an investigation can say why a particular building has moved.
Should I tell my insurer about cracks in my house?
Yes, if you think the cracks could come from subsidence or heave, tell your insurer before any permanent repair, because repairing first can make a claim harder to prove. Cracks from normal shrinkage or ageing are not usually covered, and the insurer decides which applies.
What causes vertical cracks in walls?
Vertical cracks are most often caused by thermal or moisture movement in long walls, or by the joint between old and newer work. An even-width vertical crack is usually cosmetic. One clearly wider at the top or bottom can indicate foundation movement at one end.
More repairs we carry out in Chepstow
Structural crack repairs near Chepstow
Worried about a crack in Chepstow? Photograph it with a tape measure across it, send it over, and we will tell you plainly whether it needs repair.