Structural repairs across England, Wales, mainland Scotland and Northern Ireland · Free initial assessment from your photos0800 088 6341

County Durham · England

Brick arch repairs in County Durham

Homes in County Durham are mostly colliery terraces. That matters for brick arch repairs: footings, wall construction and mortar all vary with the age of the building. Parts of County Durham have clay that can shrink near trees in dry spells.

Guide price from£370per arch inc VAT

Brick arch over a sash window being rebuilt on a timber former
Area
County Durham
Pricing region
North East
Ground
Clay in parts
Towns listed
13

What is the ground like in County Durham?

Much of County Durham sits on the Durham Coalfield, worked for centuries, often under a cover of glacial clay. Many former pit villages have recorded mine workings, and coal mining searches are standard for property here.

Historic coal workings are recorded beneath parts of County Durham, and a coal mining search is worth checking where movement is unexplained. What you mostly find across County Durham: colliery terraces, stone and brick villas in Durham and Darlington, and post-war council estates.

Signs you may need brick arch repairs

  • A flat arch that has started to sag into a shallow curve
  • A vertical crack running up from the middle of the arch
  • Mortar falling out of the arch joints after frosty weather
  • The centre bricks of an arch sitting lower than the rest

How much will brick arch repairs cost in County Durham?

For County Durham we use North East rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.

Guide prices inc VAT on North East rates. Items marked est. are our estimates.
ItemGuide pricePer
Stitching and reinforcing a sound archest.£370 – £1,100per arch
Rebuilding an arch (one side)£830 – £1,200per opening
Rebuilding an arch (both sides)£1,650 – £2,400per opening

Which repair method suits a home in County Durham?

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

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

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 happens when we carry out brick arch repairs in County Durham?

  1. 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.

  2. 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.

  3. 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.

Brick arch repair: arch supported on a former while dropped bricks are reset or the arch rebuiltDROPPED KEYSTONETEMPORARY FORMERSTITCH ABOVE ARCHINDICATIVE · NOT TO SCALE
Brick arch repair: arch supported on a former while dropped bricks are reset or the arch rebuilt. Indicative drawing, not to scale.

Do you need approval 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.

Find brick arch repairs in your County Durham town

Brick arch repairs in County Durham: questions and answers

Why do houses in County Durham crack?

Much of County Durham sits on the Durham Coalfield, worked for centuries, often under a cover of glacial clay. Many former pit villages have recorded mine workings, and coal mining searches are standard for property here. Historic coal workings are recorded beneath parts of County Durham, and a coal mining search is worth checking where movement is unexplained. Only an investigation on site can say why a particular building has moved.

How much will brick arch repairs cost in County Durham?

On North East rates, brick arch repairs starts from about £370 per arch, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.

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.

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.

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.

Related work in County Durham

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

CallGet a quote