Structural & masonry
Render repair
Repair cracked or failed render where it is a supported route for penetrating damp.
Why diagnosis matters
Treat the cause, then repair the damage
Cracked render can admit wind-driven rain, but patching without checking movement, edges and rainwater details may only postpone failure.
Technical review
Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
Guarantee & aftercare
Written guarantee terms are matched to qualifying work, with inclusions, exclusions and aftercare explained before acceptance.
What we consider
Possible causes and lookalikes
Movement
Poor adhesion
Water behind the render
Incompatible previous coatings
Inspection method
A clear work sequence
Step 1
Map defects
Step 2
Address water source and movement
Step 3
Cut back to sound edges
Step 4
Repair with compatible materials
Scope boundaries
Honest about what the work does—and does not—cover
Large façades, access equipment and specialist coating systems are separately assessed. Structural movement requires referral.
Common questions
About render repair
Can cracked render cause internal damp?+
Yes, particularly on exposed walls, but the crack pattern and all surrounding details should be assessed.
Can you patch one area?+
Often, although texture and weathering may make the patch visible.
Should render be painted?+
Only with a suitable system after the repair has cured and the wall’s moisture behaviour is understood.
Related services
Continue your investigation
Next step
Claim your complimentary survey before choosing a treatment
Tell us what you can see, when it changes and where the property is. Photographs can help us triage the next step.