Bowing Wall
An exterior or interior wall that bulges or leans outward, visible when looking along its length.
What Is Causing This?
- 1Failed or corroded wall ties
- 2Lateral pressure from a roof pushing outward
- 3Water damage weakening the mortar over many years
How Urgent Is This?
This needs prompt attention. Delaying could cause further damage, safety risks, or significantly higher repair costs.
What Needs to Be Done
A builder will assess the extent of the bow with a structural engineer. Repairs typically involve installing new wall ties, adding structural bracing, or in severe cases, rebuilding the affected section.
How Much Will It Cost?
National average estimate
Labour: £3,325 – £8,250 | Materials: £2,300 – £6,700
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Ask a QuestionPlanning Permission Guidance
Some fixes for this problem may require planning permission or building regulations approval. Check if your project needs permission:
Generally permitted under Part 1, Class A of the GPDO. Standard permitted development allows a maximum projection of 3m ...
Garage ConversionGenerally permitted as an internal alteration that does not enlarge the building. Replacing the garage door with a windo...
Basement ConversionInternal works to convert an existing basement or cellar are generally permitted as internal alterations. However, excav...
How to Prevent This
Have wall ties inspected on properties built before the 1980s. Ensure the roof structure is properly tied to the walls. Repair pointing promptly to stop water damage.
Related Problems
A visible crack running through the outside wall of your property, which may be widening over time.
Diagonal cracks appearing around windows and doors, doors sticking, and visible sinking on one side of the building.
A brick wall that has tilted or is leaning away from its original vertical position.
Other Builder Problems
A visible crack running through the outside wall of your property, which may be widening over time.
Diagonal cracks appearing around windows and doors, doors sticking, and visible sinking on one side of the building.
The mortar between bricks is cracking, crumbling, or falling out, leaving gaps in the brickwork.
Damp patches appearing on inside walls, particularly after rain, often with a musty smell.