EPS insulation · Gwent
EPS external wall insulation in Cwmbran
Quotes for EPS external wall insulation in Cwmbran list the system, the detailing and the VAT position in writing, so you know exactly what's included. We compare EPS against mineral wool for each Cwmbran enquiry rather than assuming one board suits every wall.
- Free survey in NP44 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Cwmbran
Postcode, service and a phone number is all we need.
What the job covers
- Easy to shape around bays, arches and reveals
- Grey graphite EPS reaches a given U-value with a thinner board
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Light boards mean fewer fixings and a faster install
Before we quote in Cwmbran
We cover Cwmbran and nearby Pontypool, Risca and Newport (Gwent). Cwmbran sits around 5 miles from Newport (Gwent). South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across Gwent: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
EPS is a common choice for two-storey houses, mainly on cost and weight, and we price it alongside mineral wool for homes in Cwmbran.
- Postcode district
- NP44
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Pontypool, Risca, Newport (Gwent), Caerphilly
Wales: planning and regulations
For homes in Cwmbran, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so building control is involved before work starts.
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 Cwmbran
| 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.
What happens next
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
EPS insulation in Cwmbran: 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.
Will woodpeckers damage EPS?
It happens occasionally, especially near woodland. Damage is to the render and board surface and is repaired with a mesh patch and colour-matched finish.
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.
Do you cover Cwmbran?
Yes — we survey and quote EPS external wall insulation in Cwmbran (NP44) and nearby Pontypool, Risca and Newport (Gwent), with a fixed written price before any work starts.