Northamptonshire · England
Brick arch repairs in Northamptonshire
Looking for brick arch repairs in Northamptonshire? Send us photos for a free initial view. Shrinkable clay is widespread in Northamptonshire, so we look at the ground, drains and nearby trees before recommending anything.
Guide price from£390per arch inc VAT
- Area
- Northamptonshire
- Pricing region
- East Midlands
- Ground
- Shrinkable clay widespread
- Towns listed
- 6
Why does the ground in Northamptonshire matter for brick arch repairs?
Northamptonshire sits largely on Lias clay and Jurassic ironstones and limestones, with historic ironstone quarrying around Corby and Kettering. The clay vales are prone to shrinkage near trees.
Historic ironstone working has left disturbed ground in places. Typical buildings in Northamptonshire: Ironstone and limestone cottages, Victorian terraces in Northampton and Kettering, and new-town estates in Corby.
Brick arch repairs prices in Northamptonshire
Prices in Northamptonshire are worked out on East Midlands 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 |
|---|---|---|
| Stitching and reinforcing a sound archest. | £390 – £1,200 | per arch |
| Rebuilding an arch (one side) | £880 – £1,250 | per opening |
| Rebuilding an arch (both sides) | £1,750 – £2,550 | per opening |
How we usually approach brick arch repairs
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
Rebuilding both faces
Where the arch shows inside as well as outside, or a rotten timber behind it has also failed, both faces are rebuilt. The inner timber is replaced with a suitable lintel, and the outer arch is reformed in front. The two are worked in sequence so the wall is supported throughout.
Best for: Arches with a failed timber or inner face
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
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.
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.
Strike the former and point
Once the mortar has cured enough, the former and props are removed. Joints are finished to match the surrounding wall, and any cracks running from the arch into the wall are repaired at the same visit.
What to look for before calling about brick arch repairs
- A flat arch that has started to sag into a shallow curve
- Gaps opening between arch bricks at the top or bottom edge
- Cracks stepping out from the arch ends into the wall
- The centre bricks of an arch sitting lower than the rest
Do you need approval 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.
Towns in Northamptonshire we cover for brick arch repairs
Questions about brick arch repairs in Northamptonshire
Is the ground in Northamptonshire prone to subsidence?
Northamptonshire sits largely on Lias clay and Jurassic ironstones and limestones, with historic ironstone quarrying around Corby and Kettering. The clay vales are prone to shrinkage near trees. Historic ironstone working has left disturbed ground in places. Only an investigation on site can say why a particular building has moved.
How much will brick arch repairs cost in Northamptonshire?
On East Midlands rates, brick arch repairs starts from about £390 per arch, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.
Can a dropped arch be repaired without rebuilding it?
Yes, if the drop is small and the brickwork is in good condition. Bars bonded into the joints above can take the load off the arch and hold it in place. If the bricks are loose or the arch has dropped badly, rebuilding is the more reliable repair.
Is a dropped brick arch dangerous?
A slightly dropped arch is not usually an immediate danger, but it is no longer carrying load as it should and tends to worsen. Loose bricks that could fall, or a fast-growing crack above, need prompt attention. Do not rely on the window frame to hold it.
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.