South Glamorgan · Wales
Render and insulation in Penarth
Render and insulation in Penarth: guide prices online, then a free survey and fixed written quote.
- Free survey in CF64 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in Penarth
Tell us about the property. We reply on working days.
Services
Services in Penarth
External wall insulation
- External wall insulation in Penarth
- EPS insulation in Penarth
- Mineral wool EWI in Penarth
- Wood fibre EWI in Penarth
- Non-traditional houses in Penarth
- Park home insulation in Penarth
- Flats and blocks in Penarth
- Commercial EWI in Penarth
Solid and internal wall insulation
Render finishes
- Insulated render in Penarth
- Silicone render in Penarth
- Monocouche render in Penarth
- Lime render in Penarth
- Brick slip EWI in Penarth
- Acrylic render in Penarth
Re-rendering, repairs and upkeep
Homes and walls in Penarth
We cover Penarth and nearby Cardiff, Barry and Caerphilly. Penarth is about 3 miles from Cardiff.
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 South Glamorgan: 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.
- Postcode district
- CF64
- County or area
- South Glamorgan
- Nation
- Wales
Approvals in Wales
For homes in Penarth, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so building control is involved before work starts.
Typical jobs and guide prices
| Item | Guide price | Notes |
|---|---|---|
| Silicone render | From £66 per m² + scaffoldinc VAT | Silicone render on masonry (with base coat + mesh) |
| Internal wall insulation | From £75 per m²0% VAT | Insulated plasterboard, supplied and skimmed |
| Lime render | From £78 per m² + scaffoldinc VAT | Lime render, three-coat |
| Brick slip finish over insulation | From £185 per m² + scaffold0% VAT | Brick slip EWI |
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
Penarth: questions
Do you cover Penarth?
Yes — we survey and quote in Penarth (CF64) and nearby Cardiff, Barry and Caerphilly.
How much does external wall insulation cost in Penarth?
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 Penarth?
Householder rules in Wales are similar to England's: in Penarth, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
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.