Barnet · Greater London
Brick arch repairs in Barnet
Before repairing a brick arch at a Barnet 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
- EN4, EN5, N3, N12, N20
- Population
- about 390,000
- Area
- Greater London
- Pricing region
- London
What should you know about the ground under Barnet?
Barnet is one of the 32 London boroughs, with around 390,000 residents in districts such as EN4, EN5, N3, N12, N20. If you are just outside Barnet, we also cover Haringey (4 miles), Borehamwood (4 miles) and Potters Bar (5 miles).
Greater London is one of the parts of the UK where clay soils are most likely to move with the seasons. 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.
How much will brick arch repairs cost in Barnet?
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 |
Which repair method suits a home in Barnet?
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 happens when we carry out brick arch repairs in Barnet?
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.
Signs you may need brick arch repairs
- Cracks stepping out from the arch ends into the wall
- A flat arch that has started to sag into a shallow curve
- The centre bricks of an arch sitting lower than the rest
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.
Brick arch repairs in Barnet: questions and answers
What is the price of brick arch repairs in Barnet?
Guide prices for brick arch repairs in Barnet 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 Barnet?
Yes. We take enquiries from across Barnet, including EN4, EN5, N3, N12, and from nearby places such as Haringey and Borehamwood. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Barnet 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.
Can you match the original bricks?
Usually, because most arches are rebuilt with their own cleaned bricks, which is the best match of all. Damaged bricks are replaced with reclaimed or new bricks chosen for size, colour and texture, and the mortar is matched to the surrounding joints.
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.
More repairs we carry out in Barnet
Brick arch repairs near Barnet
Once the brick and mortar match is agreed for your Barnet arch, we put a fixed price in writing before any work is booked.