Silicone render · England
Silicone render in Greater London
Get guide prices online, then a free survey and fixed quote for silicone render in Greater London, including Bexley and Archway. On tree-shaded or north-facing walls in Greater London, 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 Greater London
Tell us the postcode and what you need.
What's included
- 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
- Can also go straight onto prepared masonry
Homes and walls in Greater London
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 Greater London, we'll show you what adding insulation under the silicone would cost at the same time.
- Nation
- England
- Region
- London
- Towns covered
- Islington, Bexley, Archway, Sutton, Croydon, Ilford, Enfield, Harrow…
- Guide price
- From £66 per m² + scaffold · inc VAT
Permissions 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.
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 Greater London
| 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 Greater London: questions
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.
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 I paint silicone render later?
Yes, with a compatible silicone paint, though through-coloured render rarely needs it.
Do you cover all of Greater London?
Yes. We survey and quote silicone render across Greater London, including Islington, Bexley, Archway, Sutton, Croydon.
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.