Silicone render · Wales
Silicone render in Mid Glamorgan
Homes and buildings across Mid Glamorgan — from Rhondda to Merthyr Tydfil — can get a free survey and written quote for silicone render. On tree-shaded or north-facing walls in Mid Glamorgan, silicone's water repellence helps it stay cleaner for longer.
- Free survey and fixed written price
- Guide price from £66 per m² + scaffold, inc VAT
- Planning and building control checked for Wales
Free survey in Mid Glamorgan
Tell us the postcode and what you need.
Included as standard
- Through-coloured — no painting needed
- Fine, even grain from about 1–2mm
- Water-repellent surface that dries quickly after rain
- Can also go straight onto prepared masonry
- Vapour-open, so walls can still breathe

Before we quote 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.
Silicone suits most rendering jobs in Mid Glamorgan, either on its own or over insulation.
- Nation
- Wales
- Region
- South Wales
- Towns covered
- Rhondda, Bridgend, Merthyr Tydfil, Aberdare, Pontypridd, Maesteg
- Guide price
- From £66 per m² + scaffold · inc VAT
Permissions 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. Your local planning authority has the final word.
The Building Regulations as they apply in Wales treat insulating or re-rendering more than half of a wall's area, or more than a quarter of the building's whole envelope, as renovating a thermal element, with Approved Document L (Wales) setting the target. Building control is involved before work starts.
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 Mid Glamorgan
| 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%.
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.
Silicone render in Mid Glamorgan: questions
How long does silicone render take to dry?
It's touch-dry within hours but needs dry weather above about 5°C for the first day or two to cure properly.
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 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.
Do you cover all of Mid Glamorgan?
Yes. We survey and quote silicone render 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.