Nelson · Lancashire
Brick arch repairs in Nelson
Rebuilding an arch in Nelson is a precise job: a former cut to the exact curve, tight joints and a keystone set at the right height. Done well, the new arch looks as though it was always there.
Guide price from£385per arch inc VAT

- Postcodes
- BB8, BB9, BB10
- Population
- about 29,000
- Area
- Lancashire
- Pricing region
- North West
Is Lancashire prone to ground movement?
We cover Nelson and its postcode districts BB8, BB9, BB10, part of Lancashire, with a population of roughly 29,000. Nearby places we cover include Colne (2 miles), Burnley (3 miles) and Accrington (8 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. Housing stock in Lancashire: Stone and brick mill terraces, seaside villas in Blackpool and Lytham, and inter-war and post-war semis.
Symptoms that point to brick arch repairs
- A vertical crack running up from the middle of the arch
- Gaps opening between arch bricks at the top or bottom edge
- A flat arch that has started to sag into a shallow curve
Guide prices for brick arch repairs in Nelson
The ranges below reflect typical North West costs for brick arch repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
Methods for brick arch repairs
Lime mortar repairs
On older houses built in soft brick and lime, the arch is rebuilt or repointed in a lime mortar matched to the original. Lime lets moisture escape and moves slightly with the wall, so it protects the bricks rather than forcing damage into them, as hard cement mortar can.
Best for: Pre-1919 houses and soft historic brick
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
From first photo to finished repair
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.
Choose reinforce or rebuild
We recommend reinforcement where the arch is sound and only slightly displaced, and a rebuild where it has dropped badly or bricks are loose. If the wall beside the opening is moving, that is dealt with first.
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.
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.
Frequently asked questions
How much should I budget for brick arch repairs in Nelson?
Guide prices for brick arch repairs in Nelson 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.
Can you survey a property in Nelson?
We do. Nelson and the surrounding area are covered, including nearby Colne and Burnley. A free initial assessment from your photos is the first step.
Why do houses in Lancashire crack?
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 a former in arch building?
A former, sometimes called a centre, is a temporary timber frame cut to the exact shape of the arch. It supports the bricks while the arch is laid and the mortar cures, and is removed once the arch can carry itself.
Should a brick arch be repaired with lime mortar?
On older houses built with soft bricks and lime, yes, in most cases. Lime mortar lets the wall breathe and is weaker than the brick, so any movement or frost damage happens in the joints rather than the bricks. Modern hard brickwork can take a cement-based mortar.
Related work in Nelson
- Gable end wall repairs
- Floor joist repairs
- Concrete repairs
- Structural surveys and crack monitoring
- Boundary and garden wall repairs
Brick arch repairs near Nelson
Send a straight-on photo of the dropped or cracked arch at your Nelson home, and we will offer a free view on whether it needs reinforcing or rebuilding.