External wall insulation in Llanelli
Planning external wall insulation in Llanelli? The answers below cover cost, timescales and the rules that apply in Wales; the free survey turns them into a fixed price for your house.
Homes in and around Llanelli
Llanelli is in the SA15 postcode district. 6 other towns we cover are within 25 miles.
Nearby places we cover from Llanelli include Gorseinon (5 miles), Swansea (10 miles) and Ammanford (11 miles), all in Wales.
In exposed parts of Dyfed, we pay particular attention to how rain is shed at the eaves, sills and corners, where wind-driven water finds its way in.
Nearby towns we cover: Gorseinon (5 miles), Swansea (10 miles), Ammanford (11 miles), Carmarthen (13 miles), Briton Ferry (15 miles), Neath (15 miles).
External wall insulation prices in Llanelli
Guide prices for external wall insulation in Llanelli 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.
Brick slips, cladding and mineral wool cost more than EPS and render; the survey shows you the difference side by side.
Popular services in Llanelli
- EPS insulated render
- Wood fibre EWI
- Brick slip EWI
- Insulated cladding
- Non-traditional houses
- Bungalow EWI
- Detached house EWI
- Park home insulation
- Flats & low-rise blocks
- EWI repairs
- All 24 services
Rules that apply in Llanelli
- Building regulations
- Wales has its own Building Regulations and Approved Document L. Renovating a large part of an external wall brings the energy standards into play, so building control approval is needed for EWI.
- 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 Llanelli: questions
How much should I budget for external wall insulation in Llanelli?
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 Llanelli and fixes the total in writing.
Do you cover Gorseinon as well as Llanelli?
Yes. From Llanelli we also cover Gorseinon, Swansea and Ammanford, and the rest of Dyfed.
How long will the work take in Llanelli?
Two to six weeks on site for most houses, depending on size: bungalows are quicker, detached houses longer, weather allowing. Render isn't applied in rain or frost.