Solid wall insulation · West Glamorgan
Solid wall insulation in Gorseinon
We quote solid wall insulation for homes in Gorseinon (SA4) and nearby Llanelli and Swansea, with guide prices online and a free survey to fix the price. On solid-walled houses in Gorseinon, the gable or the most weather-exposed wall is often the place to start.
- Free survey in SA4 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Gorseinon
Postcode, service and a phone number is all we need.
What's included
- In England and Wales, Building Regulations apply when more than half of a wall is treated
- Both can be done in stages, elevation by elevation or room by room
- Internal insulation suits single rooms or where the outside can't change
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
Local considerations in Gorseinon
We also cover Llanelli and Swansea, close to Gorseinon. It's roughly 5 miles from Gorseinon to Swansea, the largest town in West Glamorgan. South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Parts of West 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.
For Gorseinon homeowners weighing external against internal insulation, the survey sets out both with prices.
- Postcode district
- SA4
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Llanelli, Swansea, Ammanford, Briton Ferry
Approvals in Wales
Householder rules in Wales are similar to England's: in Gorseinon, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
What does solid wall insulation cost?
External systems run at roughly £105–£210 per m² of wall depending on the board and finish. Internal insulation is roughly £75–£130 per m², plus the cost of moving radiators, sockets and kitchen units.
Solid wall insulation prices in Gorseinon
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
How it works
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Solid wall insulation in Gorseinon: questions
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Gorseinon?
Yes — we survey and quote solid wall insulation in Gorseinon (SA4) and nearby Llanelli, Swansea and Ammanford, with a fixed written price before any work starts.