St Austell · Cornwall
Structural crack repairs in St Austell
Cracks in walls in St Austell come in many shapes, and the shape usually says more than the size. We assess stepped, vertical, horizontal and tapered cracks from your photos first, then explain whether yours looks cosmetic or needs a closer look.
Guide price from£80per metre of crack inc VAT
- Postcodes
- PL25
- Population
- about 24,000
- Area
- Cornwall
- Pricing region
- South West
What is the ground like in Cornwall?
St Austell, Cornwall: about 24,000 residents across postcode districts PL25. We also take enquiries from nearby Bodmin (9 miles), Truro (13 miles) and Newquay (14 miles).
Clay shrinkage is less of a concern in Cornwall, so other causes such as drains, poor footings or older walls are checked first. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. What you mostly find across Cornwall: granite and slate-stone cottages, cob buildings, Victorian terraces 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
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
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.
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
- Daylight or a draught coming through a crack in an outside wall
- Stepped cracks zigzagging through the mortar joints of outside brickwork
- Cracks that reappear in the same place after filling and painting
What should you budget for structural crack repairs in St Austell?
Guide prices below are for homes in St Austell, on South West 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 | £80 – £185 | per metre of crack |
| Single crack, outside only (up to about 2 m)est. | £410 – £925 | per crack |
| Internal making good and redecoration of the crack lineest. | £155 – £515 | per room |
Rules for structural crack repairs in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Your structural crack repairs questions
How much will structural crack repairs cost in St Austell?
Guide prices for structural crack repairs in St Austell start from about £80 per metre of crack, including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover St Austell?
We do. St Austell and the surrounding area are covered, including nearby Bodmin and Truro. A free initial assessment from your photos is the first step.
Is the ground in Cornwall prone to subsidence?
Cornwall is mostly granite and slate with little shrinkable clay, so clay subsidence is less common than in the south-east. Historic tin and copper mining has left shafts and workings in places such as Camborne and Redruth, and mining searches are routine there. 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.
Other structural repairs in St Austell
- Structural surveys and crack monitoring
- Boundary and garden wall repairs
- Retaining wall repairs
- Subsidence insurance claim repairs
- Subsidence repairs
Structural crack repairs near St Austell
If a crack in St Austell keeps coming back, send photos taken a few weeks apart and we will help you work out whether it is still moving.