Commercial EWI · West Glamorgan
Commercial and public building EWI in Gorseinon
Need commercial external wall insulation in Gorseinon? Tell us about the property and we'll arrange a free survey and a written quote. For commercial premises in Gorseinon, we programme the work around opening hours so the building can keep trading.
- Free survey in SA4 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Gorseinon
Postcode, service and a phone number is all we need.
What you get
- Contract roles under CDM 2015 agreed at the start
- Planning applications supported with drawings and finish samples
- Programmes phased around opening hours and term dates
- Colour and texture options to suit brand or setting

Homes and walls in Gorseinon
As well as Gorseinon itself, we quote in Llanelli, Swansea and Ammanford. Gorseinon sits around 5 miles from Swansea. 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.
Schools and community buildings around Gorseinon are usually phased by elevation, with noisy stages in holidays where possible.
- Postcode district
- SA4
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Llanelli, Swansea, Ammanford, Briton Ferry
Planning and building control in Wales
We check Gorseinon addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
Building control in Wales applies to most insulation and re-rendering jobs of this size; the quote states who submits the notice.
Wales applies its own external wall fire rules, updated in 2025; on taller residential buildings we specify non-combustible mineral wool systems.
Does commercial EWI need planning permission?
Generally yes — permitted development rights for external wall changes are written for houses. Applications need elevations showing the projection, finish and colours, and details at eaves and openings.
Commercial and public building EWI prices in Gorseinon
| Item | Guide price | Notes |
|---|---|---|
| Insulated render system | £110–£200 per m²+ VAT | Priced on survey |
| Render refurbishment without insulation | £55–£95 per m²+ VAT | Silicone or mineral |
| Access and scaffold | Per building | Includes edge protection |
Confirmed by a fixed written quote after survey. Business prices shown before VAT, which is added at 20%. Buildings used solely for a relevant charitable purpose can qualify for 0% on insulation.
How it works
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Commercial EWI in Gorseinon: questions
Do you handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Is VAT 0% on commercial insulation?
Usually not. The zero rate covers insulation installed in residential accommodation and, since 1 February 2024, buildings used solely for a relevant charitable purpose, such as many charity-run village halls. Other commercial work is standard-rated.
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
Do you cover Gorseinon?
Yes — we survey and quote commercial external wall insulation in Gorseinon (SA4) and nearby Llanelli, Swansea and Ammanford, with a fixed written price before any work starts.