Silicone render · Surrey
Silicone render in Walton-on-Thames
We quote silicone render for homes in Walton-on-Thames (KT12) and nearby Sunbury-on-Thames and Esher, with guide prices online and a free survey to fix the price. If you're re-rendering in Walton-on-Thames, we'll show you what adding insulation under the silicone would cost at the same time.
- Free survey in KT12 and nearby
- Guide price from £66 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in Walton-on-Thames
Postcode, service and a phone number is all we need.
What's included
- Used as the finish on most EWI systems
- Water-repellent surface that dries quickly after rain
- Fine, even grain from about 1–2mm
- Can also go straight onto prepared masonry

Walton-on-Thames: walls, weather and approvals
We cover Walton-on-Thames and nearby Sunbury-on-Thames, Esher and Hanworth. Walton-on-Thames sits around 8 miles from Woking. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Much of Surrey sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
On tree-shaded or north-facing walls in Walton-on-Thames, silicone's water repellence helps it stay cleaner for longer.
- Postcode district
- KT12
- County or area
- Surrey
- Nation
- England
- Nearby
- Sunbury-on-Thames, Esher, Hanworth, Ashford (Surrey)
Planning and building control in England
For a house in Walton-on-Thames, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
How is silicone render applied?
On masonry, the wall is prepared and any loose material removed. A base coat with glass-fibre mesh is applied over the whole wall to resist cracking, followed by a primer and the silicone finish, trowelled to its grain size. On EWI, the same base coat, primer and finish go over the insulation boards.
Silicone render prices in Walton-on-Thames
| 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%.
From enquiry to finished wall
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Silicone render in Walton-on-Thames: questions
Can I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
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.
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.
Do you cover Walton-on-Thames?
Yes — we survey and quote silicone render in Walton-on-Thames (KT12) and nearby Sunbury-on-Thames, Esher and Hanworth, with a fixed written price before any work starts.