Blackburn · Lancashire
Bowing wall repairs in Blackburn
In Blackburn, as in most UK towns, bowing walls turn up mainly in older solid-walled terraces, where the floors were never properly tied to the front or side walls. Most can be held where they are with remedial restraint, without rebuilding.
Guide price from£960per wall inc VAT
- Postcodes
- BB1, BB2
- Population
- about 150,000
- Area
- Lancashire
- Pricing region
- North West
How do local ground conditions affect bowing wall repairs in Blackburn?
Blackburn is in Lancashire and takes in postcode districts BB1, BB2. About 150,000 people live there. We also take enquiries from nearby Darwen (4 miles), Accrington (5 miles) and Chorley (9 miles).
Clay soils are found in parts of Lancashire. Parts of Lancashire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Lancashire: stone and brick mill terraces, seaside villas in Blackpool and Lytham, and inter-war and post-war semis.
Is it time for bowing wall repairs? Common signs
- A visible belly in the wall when you sight along it
- Internal plaster cracks where a wall meets the ceiling
- Gutters or the roof edge no longer lining up with the wall
What should you budget for bowing wall repairs in Blackburn?
The ranges below reflect typical North West costs for bowing wall repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Lateral restraint for a typical gable | £960 – £2,900 | per wall |
| Remedial restraint ties installed | £25 – £60 | per tie |
| Partial rebuild of a badly distorted sectionest. | £2,900 – £7,700 | per section |
Repair options we may recommend
Stitching a delaminating wall
Where the layers of a solid wall have separated, long stainless ties are drilled in from the face and bonded into the inner layer to bind the wall together again. This is often combined with restraint ties, so the wall is both reconnected through its thickness and tied back to the structure.
Best for: Solid walls where the outer layer has pulled away
Lateral restraint straps
Galvanised or stainless straps are fixed across three or more joists or rafters, turned down against the inside face of the wall and fixed into the masonry. They work well at ceiling and roof level, where the fixings stay hidden.
Best for: Gables and walls bowing near ceiling or roof level
What to expect when we carry out bowing wall repairs
Decide restrain or rebuild
If the wall is badly out of plumb, has bricks crushing or follows removed internal walls, we recommend an engineer, and can arrange one. Their view sets whether restraint is enough or a section needs rebuilding.
Fit the ties and straps
Ties are drilled through and fixed, or straps fitted and secured, at the spacing specified. Any rebuild is carried out at this stage, with temporary propping in place until the new brickwork has gained strength.
Close up and make good
Boards are relaid, plaster and outside fixings made good, and cracked joints repointed. You receive a record of the restraint positions, which helps if you sell or if an engineer needs to check the wall again later.
Rules for bowing wall repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Your bowing wall repairs questions
How much will bowing wall repairs cost in Blackburn?
Guide prices for bowing wall repairs in Blackburn start from about £960 per wall, including VAT, on North West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Blackburn?
We do. Blackburn and the surrounding area are covered, including nearby Darwen and Accrington. A free initial assessment from your photos is the first step.
Is the ground in Lancashire prone to subsidence?
Lancashire is mostly glacial till over sandstone and mudstone, with the Burnley and Accrington coalfield in the east and soft coastal and estuarine ground on the Fylde. Old mill and mine sites leave made ground in many towns. Only an investigation can say why a particular building has moved.
What is lateral restraint?
Lateral restraint is the connection that stops a wall moving sideways, provided by tying it to the floors and roof. Older houses often have little or none, especially where joists run parallel to the wall. Remedial ties and straps add that connection after the event.
Is a bowing wall dangerous?
A bowing wall is not always dangerous, but it should never be ignored. Many have been slightly out of line for decades. A bow that is growing, crushing bricks or appeared after building work is more serious, and an engineer should look at it promptly. Your engineer will confirm.
Other structural repairs in Blackburn
- Extension pulling away repairs
- Structural crack repairs
- Boundary and garden wall repairs
- Crack stitching
- Resin injection ground stabilisation
Bowing wall repairs near Blackburn
Our guide-price tool covers restraint work in Blackburn; add a few photos and we can say whether ties alone are likely to be enough.