South West
Render Crack Repair in Cornwall
Diagnosing and repairing hairline, map and structural cracking in existing render.
Our render crack repair work in Cornwall starts with a free survey, because guessing at a render specification is how jobs go wrong.
Cornwall is characterised by granite and cob cottages, slate-hung walls and exposed coastal housing, with driving-rain penetration and salt damage on exposed elevations the recurring theme on the properties we survey. The area sees severe driving rain and salt-laden coastal exposure, which is the single biggest factor in how long any render lasts here.
Local factor. Exposure here is category-defining — dashed and roughcast finishes genuinely outperform smooth render on west-facing coastal walls.
Is render crack repair right for a Cornwall property?
Choose crack repair when the render is otherwise sound and well-bonded but cracking is letting water in or spoiling the appearance.
That decision gets made at the survey, not on the phone. We will tell you plainly if a different system would serve the building better — including when a cheaper one would.
Guide price and specification
| Guide price | £55–£95 per m² |
|---|---|
| Applied thickness | Localised |
| Curing / drying | 2-5 days |
| Guarantee | 10 years |
| Coverage | All of Cornwall — 10 towns and cities |
Indicative only, excluding scaffold, stripping and repairs. Try the guide-price tool for a range based on your property.
What is included
- Crack mapping and diagnosis
- Distinguishes cosmetic from structural
- Stitching and mesh reinforcement
- Flexible fillers where movement continues
- Movement joint installation
- Full-elevation mesh skim option
- Colour-matched top coat
- Structural referral where needed
Render Crack Repair across Cornwall
Render Crack Repair in Cornwall
Tell us about the property and we will call you back to arrange a survey.
Other services in Cornwall
What happens next
Four steps from enquiry to finished wall
Free survey
We visit, test the substrate, measure up and identify what caused any existing failure.
Written quote
An itemised fixed price with the system named, materials specified and scaffold included.
Booked in
An agreed start date, scaffold arranged, and a clear run of days set aside for your job.
Finished and guaranteed
Site cleared, scaffold struck, guarantee documents and system warranty issued.
FAQs
Render Crack Repair in Cornwall — questions
Do you take a deposit?
For most domestic jobs we take a deposit to cover materials and scaffold, with the balance on completion. Terms are set out clearly in the written quote.
Can you match my existing render?
Usually, yes. We colour and texture match as closely as we can, though weathered render never matches a fresh batch exactly — we will be honest about how visible a patch will be.
What causes cracks in render?
Shrinkage during curing, an over-strong mix, thermal movement, missing movement joints, substrate movement, or genuine structural movement. The pattern tells you which.
When do cracks mean structural problems?
Diagonal cracks from window and door corners, cracks wider than about 5mm, cracks that are visibly growing, or cracking matched by internal cracking. Those need a structural engineer, not a renderer.
How long does a rendering job take?
A typical three-bedroom semi is usually one to two weeks on site including scaffold, preparation, application and finishing. Weather, wall condition and the system chosen all move that.
Do I need planning permission to render my house?
Usually not on a standard house, but you will if the property is listed, in a conservation area, or if rendering would significantly change its appearance. We flag it at survey.
Render Crack Repair quotes across Cornwall
Free survey, honest advice on whether this is the right system, and a fixed written price.