Render cleaning · Wales
Render cleaning and treatment in Gwent
Homes and buildings across Gwent — from Newport (Gwent) to Pontypool — can get a free survey and written quote for render cleaning. We clean render in Gwent with low pressure only, so thin-coat and EWI finishes aren't damaged.
- Free survey and fixed written price
- Guide price from £10 per m² inc VAT
- Planning and building control checked for Wales
Free survey in Gwent
Tell us the postcode and what you need.
What you get
- Biocide treatment that continues to work after cleaning
- Most houses done in a day
- Low-pressure application — no high-pressure jetting
- Plants, windows and surfaces protected
- Safe for silicone, acrylic, monocouche and EWI finishes

Before we quote in Gwent
South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across Gwent: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
We clean render in Gwent with low pressure only, so thin-coat and EWI finishes aren't damaged.
- Nation
- Wales
- Region
- South Wales
- Towns covered
- Newport (Gwent), Cwmbran, Pontypool, Ebbw Vale, Caerphilly, Risca, Abergavenny, Monmouth
- Guide price
- From £10 per m² inc VAT
Approvals in Wales
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.
Listed buildings are the exception: even small external repairs can need listed building consent, so tell us if your property is listed.
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 Gwent
| 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 Gwent: questions
Can faded render be refreshed?
Yes — a compatible silicone paint restores colour without making the wall less breathable.
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 all of Gwent?
Yes. We survey and quote render cleaning across Gwent, including Newport (Gwent), Cwmbran, Pontypool, Ebbw Vale, Caerphilly.
Do I need planning permission in Wales?
Permitted development rules for houses in Wales are similar to England's: a similar-appearance finish on a house is often permitted, while conservation areas, National Parks, Areas of Outstanding Natural Beauty, flats, commercial buildings and listed buildings need permission or consent. We check your address before quoting.