Render cleaning · Wales
Render cleaning and treatment in Mid Glamorgan
Render cleaning and treatment across Mid Glamorgan: measured survey, clear specification and a fixed written price before any work starts. Shaded and north-facing walls in Mid Glamorgan often need render cleaning sooner than sunny elevations.
- Free survey and fixed written price
- Guide price from £10 per m² inc VAT
- Planning and building control checked for Wales
Free survey in Mid Glamorgan
Tell us the postcode and what you need.
Part of every quote
- Most houses done in a day
- Optional silicone paint to refresh faded colour
- Low-pressure application — no high-pressure jetting
- Plants, windows and surfaces protected
- Biocide treatment that continues to work after cleaning

Homes and walls in Mid Glamorgan
South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Parts of Mid Glamorgan fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
We clean render in Mid Glamorgan with low pressure only, so thin-coat and EWI finishes aren't damaged.
- Nation
- Wales
- Region
- South Wales
- Towns covered
- Rhondda, Bridgend, Merthyr Tydfil, Aberdare, Pontypridd, Maesteg
- 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.
Why not pressure wash render?
Thin-coat renders are only 1–2mm thick. High-pressure jetting can erode the texture, strip colour, force water behind beads and cracks, and damage the insulation system underneath. A soft wash uses chemistry rather than pressure to do the work.
Render cleaning and treatment prices in Mid Glamorgan
| 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 Mid Glamorgan: 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.
Will the green come back?
The biocide slows regrowth considerably, but shaded, damp walls can need retreating every few years.
Do you cover all of Mid Glamorgan?
Yes. We survey and quote render cleaning across Mid Glamorgan, including Rhondda, Bridgend, Merthyr Tydfil, Aberdare, Pontypridd.
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.