Brick arch repairs in Johnstone

Postcodes: PA5
Population: about 16,000
Area: Renfrewshire and Inverclyde
Pricing region: Scotland

What is the ground like in Renfrewshire and Inverclyde?

Johnstone (PA5) has around 16,000 residents and sits in Renfrewshire and Inverclyde. Nearby places we cover include Paisley (3 miles), Barrhead (5 miles) and Renfrew (6 miles).

Clay shrinkage is less of a concern in Renfrewshire and Inverclyde, so other causes such as drains, poor footings or older walls are checked first. Parts of Renfrewshire and Inverclyde lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Renfrewshire and Inverclyde: sandstone tenements, villas in East Renfrewshire, and post-war estates.

What should you budget for brick arch repairs in Johnstone?

Prices in Johnstone are worked out on Scotland rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.

Guide prices inc VAT on Scotland rates. Items marked est. are our estimates.
Item	Guide price	Per
Stitching and reinforcing a sound archest.	£380 – £1,150	per arch
Rebuilding an arch (one side)	£855 – £1,250	per opening
Rebuilding an arch (both sides)	£1,700 – £2,450	per opening

Repair options we may recommend

Rebuilding both faces

Where the arch shows inside as well as outside, or a rotten timber behind it has also failed, both faces are rebuilt. The inner timber is replaced with a suitable lintel, and the outer arch is reformed in front. The two are worked in sequence so the wall is supported throughout.

Best for: Arches with a failed timber or inner face

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 to expect when we carry out brick arch repairs

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.
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.

Is it time for brick arch repairs? Common signs

Cracks stepping out from the arch ends into the wall
Mortar falling out of the arch joints after frosty weather
Gaps opening between arch bricks at the top or bottom edge

Rules for brick arch repairs in Scotland

In Scotland, small repairs often do not need a building warrant, but structural alterations and strengthening generally do. Check with the council’s building standards service if unsure; there is no Party Wall Act in Scotland.

Your brick arch repairs questions

What is the price of brick arch repairs in Johnstone?

Guide prices for brick arch repairs in Johnstone start from about £380 per arch, including VAT, on Scotland 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 Johnstone?

We do. Johnstone and the surrounding area are covered, including nearby Paisley and Barrhead. A free initial assessment from your photos is the first step.

Does the ground around Johnstone cause cracking?

Renfrewshire has glacial till and Clyde alluvium with coal workings recorded in parts, while Inverclyde's towns climb steep slopes above the Clyde with many retaining walls. Only an investigation can say why a particular building has moved.

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.

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.

More repairs we carry out in Johnstone

Brick arch repairs near Johnstone

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