Bangor · Gwynedd
Structural crack repairs in Bangor
Whether your Bangor home is a Victorian terrace or a post-war semi, a crack follows the weakest line through the masonry. Reading that line correctly is the difference between a repair that lasts and one that splits open again next summer.
Guide price from£75per metre of crack inc VAT
- Postcodes
- LL57, LL59
- Population
- about 18,000
- Area
- Gwynedd
- Pricing region
- Wales
Why does the ground in Gwynedd matter for structural crack repairs?
Bangor (LL57, LL59) has around 18,000 residents and sits in Gwynedd. Nearby places we cover include Llangefni (8 miles), Caernarfon (9 miles) and Llandudno (14 miles).
Shrinkable clay is less common in Gwynedd than in south-east England. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Housing stock in Gwynedd: Slate and stone terraces, chapels and cottages, Victorian seaside houses and post-war estates.
From first photo to finished repair
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.
Symptoms that point to structural crack repairs
- Cracks that reappear in the same place after filling and painting
- Daylight or a draught coming through a crack in an outside wall
- Stepped cracks zigzagging through the mortar joints of outside brickwork
Guide prices for structural crack repairs in Bangor
Prices in Bangor are worked out on Wales rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| 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 |
Methods for structural crack repairs
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
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
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.
Frequently asked questions
How much should I budget for structural crack repairs in Bangor?
Guide prices for structural crack repairs in Bangor 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.
Can you survey a property in Bangor?
Yes, Bangor is covered, along with postcode districts LL57, LL59. We also cover nearby Llangefni and Caernarfon.
Why do houses in Gwynedd crack?
Gwynedd and Anglesey are mostly hard rock with glacial deposits, so clay shrinkage is uncommon. Historic slate quarrying and metal mining have left tips and workings in places. Only an investigation can say why a particular building has moved.
Are horizontal cracks in a wall serious?
Horizontal cracks are often more serious than vertical ones, because they suggest the wall is being pushed or lifted. Cracks repeating every few courses point to rusting wall ties, while one long crack with a bulge may mean lost restraint.
What do stepped cracks in brickwork mean?
Stepped cracks usually mean part of the wall has moved and the weakest path, the mortar joints, has given way. They are common with subsidence and around openings. A thin stepped crack unchanged for years is often cosmetic, while a wide or tapered one should be looked at.
Related work in Bangor
- Gable end wall repairs
- Wall tie replacement
- Bay window subsidence repairs
- Subsidence insurance claim repairs
- Subsidence repairs
Structural crack repairs near Bangor
Worried about a crack in Bangor? Photograph it with a tape measure across it, send it over, and we will tell you plainly whether it needs repair.