Cobham · Surrey
Brick arch repairs in Cobham
If you live in a period home in Cobham, 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£450per arch inc VAT
- Postcodes
- KT11
- Population
- about 17,000
- Area
- Surrey
- Pricing region
- South East
What should you know about the ground under Cobham?
Cobham is in Surrey and takes in postcode districts KT11. About 17,000 people live there. Nearby places we cover include Esher (3 miles), Weybridge (4 miles) and Leatherhead (4 miles).
Shrinkable clay is widespread in Surrey. Ground movement here is more often linked to soils, drains and trees than to mining. Across Surrey, most homes are Victorian and Edwardian villas, 1930s semis and detached houses in the commuter towns, and post-war estates.
Symptoms that point to 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
- Mortar falling out of the arch joints after frosty weather
Guide prices for brick arch repairs in Cobham
For Cobham we use South East 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. | £450 – £1,350 | per arch |
| Rebuilding an arch (one side) | £1,000 – £1,450 | per opening |
| Rebuilding an arch (both sides) | £2,000 – £2,900 | 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
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
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.
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.
Frequently asked questions
How much will brick arch repairs cost in Cobham?
Guide prices for brick arch repairs in Cobham start from about £450 per arch, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Cobham?
Yes, Cobham is covered, along with postcode districts KT11. We also cover nearby Esher and Weybridge.
Is the ground in Surrey prone to subsidence?
North Surrey sits on London Clay, the south on Weald Clay, with chalk along the North Downs and sands in the west. Large gardens with mature trees on clay make seasonal subsidence a familiar problem. 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.
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 Cobham
- Wall tie replacement
- Underpinning
- Structural surveys and crack monitoring
- Resin injection ground stabilisation
- Crack stitching
Brick arch repairs near Cobham
Request a written, no-obligation price for arch repairs in Cobham; every arch is itemised, along with any work needed on the inside face.