Render cleaning · Greater London
Render cleaning and treatment in Carshalton
Homeowners and landlords in Carshalton can get a free survey and a fixed written quote for render cleaning, covering SM5 and the surrounding area. Shaded and north-facing walls in Carshalton often need render cleaning sooner than sunny elevations.
- Free survey in SM5 and nearby
- Guide price from £10 per m² inc VAT
- Fixed written price before work starts
Free survey in Carshalton
Postcode, service and a phone number is all we need.
What the job covers
- Low-pressure application — no high-pressure jetting
- Plants, windows and surfaces protected
- Safe for silicone, acrylic, monocouche and EWI finishes
- Optional silicone paint to refresh faded colour

Local considerations in Carshalton
We also cover Wallington and Sutton, close to Carshalton. 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.
We clean render in Carshalton with low pressure only, so thin-coat and EWI finishes aren't damaged.
- Postcode district
- SM5
- County or area
- Greater London
- Nation
- England
- Nearby
- Wallington, Sutton, Mitcham, Morden
Approvals in England
Small repairs and cleaning in Carshalton normally need no approvals. Listed buildings are the exception — even minor external work can need consent.
How long does cleaned render stay clean?
It depends on shade, trees and exposure. Many walls stay clean for several years after a biocide treatment. North-facing, shaded and damp walls may need treating more often.
Render cleaning and treatment prices in Carshalton
| Item | Guide price | Notes |
|---|---|---|
| Soft wash and biocide | £10–£19 per m²inc VAT | Minimum £475 |
| Clean and silicone paint refresh | £22–£36 per m²inc VAT | Excluding scaffold |
| Typical semi, all elevations | £835–£1,555inc VAT | Clean only |
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.
Render cleaning in Carshalton: questions
Will the green come back?
The biocide slows regrowth considerably, but shaded, damp walls can need retreating every few years.
Is render cleaning safe for EWI?
Yes, using low pressure and products suitable for thin-coat render.
Do you need scaffolding?
Usually not for a two-storey house; poles and low-pressure equipment reach most walls.
Do you cover Carshalton?
Yes — we survey and quote render cleaning in Carshalton (SM5) and nearby Wallington, Sutton and Mitcham, with a fixed written price before any work starts.