Mid Glamorgan · Wales
Render and insulation in Merthyr Tydfil
From pebble dash and failing render to full external wall insulation, we survey and quote homes and buildings in Merthyr Tydfil.
- Free survey in CF47 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Merthyr Tydfil
Tell us about the property. We reply on working days.
Services
Services in Merthyr Tydfil
External wall insulation
- External wall insulation in Merthyr Tydfil
- EPS insulation in Merthyr Tydfil
- Mineral wool EWI in Merthyr Tydfil
- Wood fibre EWI in Merthyr Tydfil
- Non-traditional houses in Merthyr Tydfil
- Park home insulation in Merthyr Tydfil
- Flats and blocks in Merthyr Tydfil
- Commercial EWI in Merthyr Tydfil
Solid and internal wall insulation
- Solid wall insulation in Merthyr Tydfil
- Internal wall insulation in Merthyr Tydfil
- Survey and quote in Merthyr Tydfil
Render finishes
- Insulated render in Merthyr Tydfil
- Silicone render in Merthyr Tydfil
- Monocouche render in Merthyr Tydfil
- Lime render in Merthyr Tydfil
- Brick slip EWI in Merthyr Tydfil
- Acrylic render in Merthyr Tydfil
Re-rendering, repairs and upkeep
Homes and walls in Merthyr Tydfil
As well as Merthyr Tydfil itself, we quote in Aberdare, Rhondda and Ebbw Vale. It's roughly 7 miles from Merthyr Tydfil to Rhondda, the largest town 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.
- Postcode district
- CF47
- County or area
- Mid Glamorgan
- Nation
- Wales
Approvals in Wales
For homes in Merthyr Tydfil, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
Typical jobs and guide prices
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool external wall insulation | From £125 per m² + scaffold0% VAT | Mineral wool + mineral or silicone render |
| Brick slip finish over insulation | From £185 per m² + scaffold0% VAT | Brick slip EWI |
| Monocouche render | From £54 per m² + scaffoldinc VAT | Monocouche on blockwork |
| Covering pebble dash | From £72 per m² + scaffoldinc VAT | Render over sound pebble dash |
Insulation prices for homes are totals (0% VAT until 31 March 2027); render and repair prices include VAT at 20%. Confirmed in writing after a free survey. Full price guide
Nearby towns
Merthyr Tydfil: questions
Do you cover Merthyr Tydfil?
Yes — we survey and quote in Merthyr Tydfil (CF47) and nearby Aberdare, Rhondda and Ebbw Vale.
How much does external wall insulation cost in Merthyr Tydfil?
Our guide is £105–£170 per m² depending on the system, plus scaffolding — roughly £10,200–£17,700 for a typical three-bed semi with EPS and silicone render. Installing insulation in a home is zero-rated for VAT until 31 March 2027, so that's the total. A free survey fixes the price.
Do I need planning permission in Merthyr Tydfil?
For homes in Merthyr Tydfil, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
Is VAT charged on wall insulation?
Installing wall insulation in homes is zero-rated until 31 March 2027, then 5%, so our insulation prices are totals. Render-only work and repairs carry VAT at 20%, and our prices for them include it.