Silicone render · England
Silicone render in Wiltshire
We provide silicone render across Wiltshire, including Swindon, Salisbury and Trowbridge, with a free survey and fixed written price. On tree-shaded or north-facing walls in Wiltshire, silicone's water repellence helps it stay cleaner for longer.
- Free survey and fixed written price
- Guide price from £66 per m² + scaffold, inc VAT
- Planning and building control checked for England
Free survey in Wiltshire
Tell us the postcode and what you need.
Part of every quote
- Water-repellent surface that dries quickly after rain
- Through-coloured — no painting needed
- Vapour-open, so walls can still breathe
- Fine, even grain from about 1–2mm
- Used as the finish on most EWI systems
Before we quote in Wiltshire
The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Wiltshire: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
On tree-shaded or north-facing walls in Wiltshire, silicone's water repellence helps it stay cleaner for longer.
- Nation
- England
- Region
- South West
- Towns covered
- Swindon, Salisbury, Trowbridge, Chippenham
- Guide price
- From £66 per m² + scaffold · inc VAT
Approvals in England
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. Planning permission is usually needed in conservation areas, National Parks, National Landscapes, the Broads and World Heritage Sites (where cladding a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles isn't permitted development), for flats and maisonettes, for commercial buildings, under an Article 4 direction, or where the look changes noticeably. Listed buildings need listed building consent.
Renovating more than half of a wall's area — insulating it, or stripping and re-rendering it — or more than a quarter of the building's whole external envelope brings in the energy requirements of Part L, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's technically, functionally and economically feasible.
Is silicone render maintenance-free?
Not quite. It stays cleaner than most renders because water runs off and dries quickly, but north-facing or tree-shaded walls can still gather algae. A gentle biocide wash every few years keeps it looking new. Pressure washing is avoided because it can damage the surface.
Silicone render prices in Wiltshire
| Item | Guide price | Notes |
|---|---|---|
| Silicone render on masonry (with base coat + mesh) | £66–£102 per m²inc VAT | Excluding scaffold |
| Front and side of a semi (≈60 m²) | £3,960–£6,120inc VAT | Plus scaffold |
| As the finish on EWI | Included in EWI rates |
Confirmed by a fixed written quote after survey. Prices include VAT at 20%.
What happens next
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Silicone render in Wiltshire: questions
How long does silicone render take to dry?
It's touch-dry within hours but needs dry weather above about 5°C for the first day or two to cure properly.
Does silicone render crack?
The mesh-reinforced base coat and the render's flexibility make cracking much less likely than with sand and cement, but structural movement in the wall can still show through.
Can I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
Do you cover all of Wiltshire?
Yes. We survey and quote silicone render across Wiltshire, including Swindon, Salisbury, Trowbridge, Chippenham.
Do I need planning permission in England?
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. We check your address before quoting.