Brick arch repairs in Belfast

Postcodes: BT1, BT2, BT7
Population: about 350,000
Area: County Antrim
Pricing region: Northern Ireland

How do local ground conditions affect brick arch repairs in Belfast?

Postcode districts BT1, BT2, BT7 cover Belfast, a County Antrim town of about 350,000 people. We also take enquiries from nearby Newtownabbey (4 miles), Lisburn (7 miles) and Carrickfergus (10 miles).

Shrinkable clay is less common in County Antrim than in south-east England. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. Typical buildings in County Antrim: Red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.

What happens when we carry out brick arch repairs in Belfast?

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.
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.

Signs you may need brick arch repairs

A vertical crack running up from the middle of the arch
Gaps opening between arch bricks at the top or bottom edge
Mortar falling out of the arch joints after frosty weather

How much will brick arch repairs cost in Belfast?

These are guide prices for Belfast, using Northern Ireland rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.

Guide prices inc VAT on Northern Ireland rates. Items marked est. are our estimates.
Item	Guide price	Per
Stitching and reinforcing a sound archest.	£350 – £1,050	per arch
Rebuilding an arch (one side)	£790 – £1,150	per opening
Rebuilding an arch (both sides)	£1,600 – £2,300	per opening

Which repair method suits a home in Belfast?

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

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

Rules for brick arch repairs in Northern Ireland

In Northern Ireland, minor repairs usually need no approval, but structural work comes under the Building Regulations (Northern Ireland) 2012 and council building control. There is no Party Wall Act in Northern Ireland.

Brick arch repairs in Belfast: questions and answers

What is the price of brick arch repairs in Belfast?

Guide prices for brick arch repairs in Belfast start from about £350 per arch, including VAT, on Northern Ireland 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 Belfast?

Yes. We take enquiries from across Belfast, including BT1, BT2, BT7, and from nearby places such as Newtownabbey and Lisburn. Send photos for a free initial view and we will tell you what happens next.

Does the ground around Belfast cause cracking?

County Antrim is largely basalt over chalk, with soft estuarine 'sleech' along Belfast Lough that is notorious for settlement. Historic salt mining is recorded near Carrickfergus. Only an investigation can say why a particular building has moved.

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.

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.

More repairs we carry out in Belfast

Brick arch repairs near Belfast

Request a written, no-obligation price for arch repairs in Belfast; every arch is itemised, along with any work needed on the inside face.