Cardiff · South Glamorgan
Structural crack repairs in Cardiff
Structural crack repairs for a Cardiff 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
- CF10, CF11, CF24
- Population
- about 370,000
- Area
- South Glamorgan
- Pricing region
- Wales
Why does the ground in South Glamorgan matter for structural crack repairs?
Cardiff (CF10, CF11, CF24) has around 370,000 residents and sits in South Glamorgan. Nearby places we cover include Penarth (3 miles), Caerphilly (7 miles) and Barry (7 miles).
South Glamorgan has a mix of ground, with clay in some places and firmer rock in others. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in South Glamorgan: Victorian terraces in Cardiff and Penarth, inter-war semis and post-war estates.
Repair options we may recommend
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
Crack stitching with helical bars
Stainless steel helical bars are grouted into slots cut along the bed joints, bridging the crack so the masonry works as one piece again. It is the standard repair for wider stepped and vertical cracks once whatever caused them has stopped.
Best for: Stable cracks wider than about 5 mm, or ones that keep reopening
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.
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.
Repair and make good
Cracks are stitched, repointed or rebuilt as specified, with mortar matched to the existing wall. Internal crack lines are filled and redecorated where included, and you get a written note of what was done.
Is it time for structural crack repairs? Common signs
- Stepped cracks zigzagging through the mortar joints of outside brickwork
- Daylight or a draught coming through a crack in an outside wall
- Diagonal cracks running from the corners of windows and doors
What should you budget for structural crack repairs in Cardiff?
Guide prices below are for homes in Cardiff, on Wales rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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 Cardiff?
Guide prices for structural crack repairs in Cardiff 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 Cardiff?
Yes, Cardiff is covered, along with postcode districts CF10, CF11, CF24. We also cover nearby Penarth and Caerphilly.
Does the ground around Cardiff cause cracking?
Cardiff is built on Mercia Mudstone, river gravels and alluvium, and the Vale of Glamorgan on Lias limestone and clay. Soft alluvium near the rivers and docks can settle. 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.
Can I just fill a crack and paint over it?
You can fill a fine crack that is not moving, and for many hairline cracks that is the right repair. Filling a crack that is still opening hides the evidence, and it will usually come back. If a filled crack returns within a year or two, have it assessed.
More repairs we carry out in Cardiff
- Roof structure repairs
- Retaining wall repairs
- Lintel replacement
- Boundary and garden wall repairs
- Chimney stack repairs
Structural crack repairs near Cardiff
For a guide price on crack repairs in Cardiff, try the quote tool or send us photos, and we will reply with the likely repair and its cost range.