EPS insulation · Dyfed
EPS external wall insulation in Aberystwyth
From Aberystwyth to Llandrindod Wells, 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 Aberystwyth enquiry rather than assuming one board suits every wall.
- Free survey in SY23 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Aberystwyth
Postcode, service and a phone number is all we need.
Part of every quote
- Grey graphite EPS reaches a given U-value with a thinner board
- Finished in silicone, acrylic, mineral render or brick slip
- Light boards mean fewer fixings and a faster install
- Used on low-rise houses; combustible, so not for taller buildings

Local considerations in Aberystwyth
We cover Aberystwyth and nearby Llandrindod Wells, Newtown and Carmarthen. Aberystwyth sits around 51 miles from Llanelli. West Wales has a high share of older solid-walled and stone homes, many in exposed coastal or rural settings.
Parts of Dyfed 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.
Where eaves are shallow on a house in Aberystwyth, grey EPS can sometimes avoid the cost of extending the roofline.
- Postcode district
- SY23
- County or area
- Dyfed
- Nation
- Wales
- Nearby
- Llandrindod Wells, Newtown, Carmarthen, Welshpool
Approvals in Wales
Householder rules in Wales are similar to England's: in Aberystwyth, 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.
How thick does the board need to be?
On a 225mm solid brick wall, around 90mm of grey EPS or 100–110mm of white EPS typically gets close to 0.30 W/m²K. Stone walls, concrete panels and hollow-block walls start from different points, so the system supplier's calculation for your wall sets the final thickness.
EPS external wall insulation prices in Aberystwyth
| 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.
From enquiry to finished wall
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 Aberystwyth: 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.
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.
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 Aberystwyth?
Yes — we survey and quote EPS external wall insulation in Aberystwyth (SY23) and nearby Llandrindod Wells, Newtown and Carmarthen, with a fixed written price before any work starts.