Silicone render · Greater London
Silicone render in New Malden
From New Malden to Surbiton, we price silicone render after a measured survey — no guesswork, and no work starts until the price is agreed in writing. On tree-shaded or north-facing walls in New Malden, silicone's water repellence helps it stay cleaner for longer.
- Free survey in KT3 and nearby
- Guide price from £66 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in New Malden
Postcode, service and a phone number is all we need.
What's included
- Through-coloured — no painting needed
- Used as the finish on most EWI systems
- Fine, even grain from about 1–2mm
- Water-repellent surface that dries quickly after rain
New Malden: walls, weather and approvals
We also cover Surbiton and Morden, close to New Malden. 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 New Malden, we'll show you what adding insulation under the silicone would cost at the same time.
- Postcode district
- KT3
- County or area
- Greater London
- Nation
- England
- Nearby
- Surbiton, Morden, Wimbledon, Mitcham
Planning and building control in England
For a house in New Malden, 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.
Silicone or monocouche?
Monocouche is a thicker single-coat cement render used mainly on new blockwork. Silicone is thinner, more flexible and usually more resistant to staining, and it's the finish used over insulation. On older or mixed walls, silicone over a mesh-reinforced base coat is generally the safer choice.
Silicone render prices in New Malden
| 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 New Malden: 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.
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 New Malden?
Yes — we survey and quote silicone render in New Malden (KT3) and nearby Surbiton, Morden and Wimbledon, with a fixed written price before any work starts.