Silicone render · Greater London
Silicone render in Hayes
Need silicone render in Hayes? Tell us about the property and we'll arrange a free survey and a written quote. Silicone suits most rendering jobs in Hayes, either on its own or over insulation.
- Free survey in UB3 and nearby
- Guide price from £66 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in Hayes
Postcode, service and a phone number is all we need.
What the job covers
- Fine, even grain from about 1–2mm
- Vapour-open, so walls can still breathe
- Used as the finish on most EWI systems
- Can also go straight onto prepared masonry

Local considerations in Hayes
Surveys in Hayes also cover the surrounding UB3 district and towns such as Southall and Heston. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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.
If you're re-rendering in Hayes, we'll show you what adding insulation under the silicone would cost at the same time.
- Postcode district
- UB3
- County or area
- Greater London
- Nation
- England
- Nearby
- Southall, Heston, Greenford, Northolt
Approvals in England
For a house in Hayes, 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.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
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 Hayes
| 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
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Silicone render in Hayes: 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.
Can silicone render go over old render?
If the old render is sound and well bonded, often yes after cleaning and priming. Hollow or cracked areas are cut out and repaired first.
Can I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
Do you cover Hayes?
Yes — we survey and quote silicone render in Hayes (UB3) and nearby Southall, Heston and Greenford, with a fixed written price before any work starts.