External wall insulation in Cwmbran
If you live in Cwmbran (NP44) and your walls are solid, system-built or simply cold, external wall insulation may be the most effective upgrade you can make without losing any room inside.
Homes in and around Cwmbran
Cwmbran is in the NP44 postcode district, about 5 miles from Newport in Gwent. 6 other towns we cover are within 25 miles.
We arrange surveys in Cwmbran (NP44) at a time that suits you, and cover neighbouring Pontypool, Risca and Newport in Gwent too.
We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your Cwmbran home.
Nearby towns we cover: Pontypool (3 miles), Risca (5 miles), Newport, Gwent (5 miles), Caerphilly (10 miles), Ebbw Vale (12 miles), Cardiff (14 miles).
External wall insulation prices in Cwmbran
Guide prices for external wall insulation in Cwmbran run from about £109 to £175 per square metre installed, depending on system and finish; scaffolding priced per house, with VAT at 0% on homes until 31 March 2027.
Bays, gables, conservatory junctions and narrow side passages take longer than plain walls, so the survey prices your actual house rather than an average.
Popular services in Cwmbran
- EPS insulated render
- Wood fibre EWI
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Non-traditional houses
- Terraced house EWI
- EWI for landlords
- Failed EWI remediation
- EWI surveys
- All 24 services
Rules that apply in Cwmbran
- Funding
- Warm Homes Nest provides free improvements to low-income owner-occupiers and private tenants, and the Green Homes Wales pilot has offered interest-free loans to households above those thresholds. ECO4 closes on 31 December 2026. These schemes use their own approved installers; our quotes are for privately funded work unless we confirm otherwise in writing. Grants guide
- VAT
- Installing insulation in a home is zero-rated for VAT until 31 March 2027, then 5%.
Checked October 2026. Rules change, so we confirm them for your address at survey.
External wall insulation in Cwmbran: questions
How much should I budget for external wall insulation in Cwmbran?
Budget around £109–£175 per square metre of wall for the system and finish, plus scaffolding priced per house. The survey measures your walls in Cwmbran and fixes the total in writing.
Do you cover Pontypool as well as Cwmbran?
Yes. From Cwmbran we also cover Pontypool, Risca and Newport in Gwent, and the rest of Gwent.
Which EWI system suits homes in Cwmbran?
It depends on the walls. Most brick houses in Cwmbran suit EPS with silicone render; older stone or lime-built walls suit wood fibre or insulating lime render; and blocks need mineral wool. The free survey recommends one and explains why.