Brent · Greater London
Brick arch repairs in Brent
Before repairing a brick arch at a Brent property, we check what sits behind it. A rotting timber lintel on the inner face is a frequent hidden cause, and fixing only the visible arch would leave the real problem in place.
Guide price from£500per arch inc VAT

- Postcodes
- HA0, HA9, NW9, NW10
- Population
- about 340,000
- Area
- Greater London
- Pricing region
- London
Why does the ground in Greater London matter for brick arch repairs?
Brent is one of the 32 London boroughs, with around 340,000 residents in districts such as HA0, HA9, NW9, NW10. Nearby, we also cover Harrow (3 miles), Ealing (3 miles) and Hammersmith and Fulham (5 miles).
Shrinkable clay is widespread in Greater London. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
What should you budget for brick arch repairs in Brent?
Guide prices below are for homes in Brent, on London rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Stitching and reinforcing a sound archest. | £500 – £1,500 | per arch |
| Rebuilding an arch (one side) | £1,100 – £1,600 | per opening |
| Rebuilding an arch (both sides) | £2,250 – £3,250 | per opening |
Repair options we may recommend
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 to expect when we carry out brick arch repairs
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.
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.
Is it time for brick arch repairs? Common signs
- A vertical crack running up from the middle of the arch
- A flat arch that has started to sag into a shallow curve
- Gaps opening between arch bricks at the top or bottom edge
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.
Your brick arch repairs questions
What is the price of brick arch repairs in Brent?
Guide prices for brick arch repairs in Brent start from about £500 per arch, including VAT, on London rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out brick arch repairs in Brent?
Yes. We take enquiries from across Brent, including HA0, HA9, NW9, NW10, and from nearby places such as Harrow and Ealing. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Brent cause cracking?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. Only an investigation can say why a particular building has moved.
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.
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.
More repairs we carry out in Brent
- Chimney stack repairs
- Structural crack repairs
- Boundary and garden wall repairs
- Lintel replacement
- Structural surveys and crack monitoring
Brick arch repairs near Brent
Request a written, no-obligation price for arch repairs in Brent; every arch is itemised, along with any work needed on the inside face.