Render Falling Off Wall
Sections of external render detaching and falling from the wall, exposing bare brickwork or blockwork.
What Is Causing This?
- 1Render debonding due to frost damage behind it
- 2Original substrate dusty or not keyed properly
- 3Damp causing the render to blow away from the wall
How Urgent Is This?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
What Needs to Be Done
A rendering specialist will remove all loose render, prepare the exposed wall, and apply new render with proper bonding, mesh reinforcement, and a suitable finish.
How Much Will It Cost?
National average estimate
Labour: £850 – £2,233 | Materials: £417 – £1,267
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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:
How to Prevent This
Ensure walls are properly prepared before rendering. Fix any damp issues first. Use a render system suited to the substrate type.
Related Problems
Cracks appearing in the external render, ranging from hairline to wide splits that expose the masonry beneath.
A visible bulge in the external render where it has separated from the wall but not yet fallen away.
Damp patches visible on internal walls that correspond to areas of external render, especially after rain.
Other Rendering Specialist Problems
Cracks appearing in the external render, ranging from hairline to wide splits that expose the masonry beneath.
Damp patches visible on internal walls that correspond to areas of external render, especially after rain.
External render developing green algae or moss growth, making the walls look dirty and neglected.
Pebbledash coating losing stones or whole sections detaching from the wall.