Camden · Greater London
Brick arch repairs in Camden
Older Camden houses often carry their window and door heads on brick arches built without any steel at all. When the centre bricks slip, the arch either needs reinforcing in place or rebuilding over a timber former.
Guide price from£500per arch inc VAT
- Postcodes
- N6, NW1, NW2, NW3, NW5
- Population
- about 210,000
- Area
- Greater London
- Pricing region
- London
Is Greater London prone to ground movement?
Camden is one of the 32 London boroughs, with around 210,000 residents in districts such as N6, NW1, NW2, NW3, NW5. Nearby places we cover include Islington (2 miles), Westminster (3 miles) and Haringey (4 miles).
Much of Greater London sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
Is it time for brick arch repairs? Common signs
- A flat arch that has started to sag into a shallow curve
- The centre bricks of an arch sitting lower than the rest
- Mortar falling out of the arch joints after frosty weather
What should you budget for brick arch repairs in Camden?
The ranges below reflect typical London 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. | £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
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
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
What to expect when we carry out brick arch repairs
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.
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.
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.
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
How much will brick arch repairs cost in Camden?
Guide prices for brick arch repairs in Camden 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 cover Camden?
We do. Camden and the surrounding area are covered, including nearby Islington and Westminster. A free initial assessment from your photos is the first step.
Is the ground in Greater London prone to subsidence?
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.
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.
Why has the middle of my brick arch dropped?
The centre of an arch usually drops because the bricks have lost their wedge, either because the wall at the sides has moved or the mortar has worn away. A rotting timber hidden behind the arch is another common cause. The keystone slipping is the visible result.
Other structural repairs in Camden
- Boundary and garden wall repairs
- Resin injection ground stabilisation
- Subsidence repairs
- Wall tie replacement
- Roof structure repairs
Brick arch repairs near Camden
Request a written, no-obligation price for arch repairs in Camden; every arch is itemised, along with any work needed on the inside face.