Blackburn · Lancashire
Brick arch repairs in Blackburn
If you live in a period home in Blackburn, the arches over your windows were probably laid in lime mortar. Rebuilding them in lime, with the original bricks cleaned and reused, keeps the wall breathing and the repair hard to spot.
Guide price from£385per arch inc VAT
- Postcodes
- BB1, BB2
- Population
- about 150,000
- Area
- Lancashire
- Pricing region
- North West
Why does the ground in Lancashire matter for brick arch repairs?
With roughly 150,000 people, Blackburn spans postcode districts BB1, BB2 in Lancashire. If you are just outside Blackburn, we also cover Darwen (4 miles), Accrington (5 miles) and Chorley (9 miles).
Parts of Lancashire have clay that can shrink near trees in dry spells. Parts of Lancashire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Typical buildings in Lancashire: Stone and brick mill terraces, seaside villas in Blackpool and Lytham, and inter-war and post-war semis.
How we usually approach brick arch repairs
Reinforcing a sound arch
Where the arch has only dropped slightly and the bricks are sound, stainless helical bars are bonded into the bed joints just above it, extending well into the wall on each side. The bars turn the courses above into a reinforced band of masonry, so the arch no longer has to carry the full load. Joints are repointed to match.
Best for: Slightly dropped or cracked arches with sound bricks
Rebuilding over a former
A timber former is cut to the arch profile and propped under the opening. The old arch is carefully taken down, bricks cleaned for reuse, and the arch rebuilt over the former with tight joints and a properly set keystone. The former stays until the mortar is strong enough to carry the load.
Best for: Badly dropped arches or ones with loose voussoirs
What happens during brick arch repairs, step by step?
Look at the arch closely
Straight-on photos of the arch and the wall either side show us how far it has dropped, whether the bricks are sound and whether the cause seems to be the arch itself or the wall around it.
Support the opening
Props carry the brickwork above, and for a rebuild a former is made to the exact profile of the arch. The window or door frame is protected so it is not asked to carry any load.
Repair the arch
Bars are bonded into the joints above a sound arch, or the arch is taken down and relaid over the former using the original bricks where possible, with matched replacements for any that are damaged.
What to look for before calling about brick arch repairs
- A vertical crack running up from the middle of the arch
- A flat arch that has started to sag into a shallow curve
- Cracks stepping out from the arch ends into the wall
Brick arch repairs prices in Blackburn
For Blackburn we use North West rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Stitching and reinforcing a sound archest. | £385 – £1,150 | per arch |
| Rebuilding an arch (one side) | £865 – £1,250 | per opening |
| Rebuilding an arch (both sides) | £1,750 – £2,500 | per opening |
Rules for brick arch 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.
Questions about brick arch repairs in Blackburn
How much will brick arch repairs cost in Blackburn?
Guide prices for brick arch repairs in Blackburn start from about £385 per arch, 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?
Yes, Blackburn is covered, along with postcode districts BB1, BB2. We also cover nearby Darwen and Accrington.
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.
Do flat brick arches need a lintel?
Many flat soldier arches were built with a hidden steel bar or timber behind, because they have little true arch action. When repairing one, we check what is supporting it and, where needed, reinforce it with bars or add suitable support behind.
Can you match the original bricks?
Usually, because most arches are rebuilt with their own cleaned bricks, which is the best match of all. Damaged bricks are replaced with reclaimed or new bricks chosen for size, colour and texture, and the mortar is matched to the surrounding joints.
Other structural repairs in Blackburn
- Structural surveys and crack monitoring
- Chimney stack repairs
- Mining subsidence repairs
- Gable end wall repairs
- Resin injection ground stabilisation
Brick arch repairs near Blackburn
Request a written, no-obligation price for arch repairs in Blackburn; every arch is itemised, along with any work needed on the inside face.