EPS insulation · West Glamorgan
EPS external wall insulation in Briton Ferry
From Briton Ferry to Neath, we price EPS external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. We compare EPS against mineral wool for each Briton Ferry enquiry rather than assuming one board suits every wall.
- Free survey in SA12 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Briton Ferry
Postcode, service and a phone number is all we need.
What the job covers
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Used on low-rise houses; combustible, so not for taller buildings
- Finished in silicone, acrylic, mineral render or brick slip
- Easy to shape around bays, arches and reveals

Before we quote in Briton Ferry
As well as Briton Ferry itself, we quote in Neath, Port Talbot and Swansea. It's roughly 5 miles from Briton Ferry 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.
EPS is a common choice for two-storey houses, mainly on cost and weight, and we price it alongside mineral wool for homes in Briton Ferry.
- Postcode district
- SA12
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Neath, Port Talbot, Swansea, Maesteg
Permissions in Wales
For homes in Briton Ferry, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
What is EPS insulation?
Expanded polystyrene is a closed-cell foam made from beads that are expanded and moulded into boards. White EPS is the standard grade; grey EPS has graphite added, which reflects radiant heat and improves performance by roughly 15–20%, so a thinner board does the same job. Both are used inside certified render systems where the board, adhesive, fixings, mesh and finish are tested together by the manufacturer.
EPS external wall insulation prices in Briton Ferry
| Item | Guide price | Notes |
|---|---|---|
| EPS + silicone render | £105–£145 per m²0% VAT | Excluding scaffold |
| Grey EPS uplift | +£4–£8 per m²0% VAT | Thinner board for the same U-value |
| Bungalow, full house | £6,700–£12,8000% VAT | 55–75 m² of wall, including scaffold |
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.
EPS insulation in Briton Ferry: questions
How long does EPS last on a wall?
The board itself doesn't degrade when protected by the render system. Service life depends on the render, sealants and detailing, typically 25–30 years or more with maintenance.
Is EPS insulation safe on a house?
EPS is used inside render systems that are fire-tested as a whole. On low-rise houses it is widely used. On taller buildings, or where guidance calls for non-combustible materials, mineral wool systems are specified instead.
White or grey EPS?
Grey graphite EPS insulates better per millimetre, so it is the pick where space is tight at the eaves or around windows. White EPS is slightly cheaper and works well where the extra thickness isn't a problem.
Do you cover Briton Ferry?
Yes — we survey and quote EPS external wall insulation in Briton Ferry (SA12) and nearby Neath, Port Talbot and Swansea, with a fixed written price before any work starts.