Render cleaning · Greater London
Render cleaning and treatment in Barnes
If you're planning render cleaning in Barnes, start with a free survey: we measure, check the walls and confirm planning and building control for your address. We clean render in Barnes with low pressure only, so thin-coat and EWI finishes aren't damaged.
- Free survey in SW13 and nearby
- Guide price from £10 per m² inc VAT
- Fixed written price before work starts
Free survey in Barnes
Postcode, service and a phone number is all we need.
What the job covers
- Plants, windows and surfaces protected
- Biocide treatment that continues to work after cleaning
- Safe for silicone, acrylic, monocouche and EWI finishes
- Most houses done in a day

Homes and walls in Barnes
We also cover Chiswick and Putney, close to Barnes. 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.
For Barnes homes with faded render, we price a clean and a clean-and-refresh option.
- Postcode district
- SW13
- County or area
- Greater London
- Nation
- England
- Nearby
- Chiswick, Putney, Fulham, Shepherds Bush
England: planning and regulations
Repairs, cleaning and like-for-like patching don't usually need planning permission or building control. If repairs grow into re-rendering more than half of a wall, Building Regulations energy rules can apply.
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 Barnes
| 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%.
How it works
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.
Render cleaning in Barnes: questions
Is render cleaning safe for EWI?
Yes, using low pressure and products suitable for thin-coat render.
Can faded render be refreshed?
Yes — a compatible silicone paint restores colour without making the wall less breathable.
Do you need scaffolding?
Usually not for a two-storey house; poles and low-pressure equipment reach most walls.
Do you cover Barnes?
Yes — we survey and quote render cleaning in Barnes (SW13) and nearby Chiswick, Putney and Fulham, with a fixed written price before any work starts.