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EPS insulation · West Glamorgan

EPS external wall insulation in Swansea

Need EPS external wall insulation in Swansea? Tell us about the property and we'll arrange a free survey and a written quote. Where eaves are shallow on a house in Swansea, grey EPS can sometimes avoid the cost of extending the roofline.

  • Free survey in SA1 and nearby
  • Guide price from £105 per m² + scaffold, 0% VAT
  • Fixed written price before work starts

Free survey in Swansea

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What the job covers

  • Grey graphite EPS reaches a given U-value with a thinner board
  • Easy to shape around bays, arches and reveals
  • Light boards mean fewer fixings and a faster install
  • Finished in silicone, acrylic, mineral render or brick slip
Close-up of white EPS insulation boards being fixed to a brick wall with orange-capped mechanical fixings

Swansea: walls, weather and approvals

We also cover Briton Ferry and Gorseinon, close to 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.

We compare EPS against mineral wool for each Swansea enquiry rather than assuming one board suits every wall.

Postcode district
SA1
County or area
West Glamorgan
Nation
Wales
Nearby
Briton Ferry, Gorseinon, Neath, Port Talbot

Approvals in Wales

Householder rules in Wales are similar to England's: in Swansea, 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 Swansea

EPS external wall insulation guide prices
ItemGuide priceNotes
EPS + silicone render£105–£145 per m²0% VATExcluding scaffold
Grey EPS uplift+£4–£8 per m²0% VATThinner board for the same U-value
Bungalow, full house£6,700–£12,8000% VAT55–75 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

  1. Enquiry

    Send your postcode and a few details.

  2. Measured survey

    Walls, damp, eaves, cills and services recorded.

  3. Written price

    A fixed price with the specification attached.

  4. Work and handover

    Installed, inspected and documents handed over.

EPS insulation in Swansea: questions

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.

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.

Do you cover Swansea?

Yes — we survey and quote EPS external wall insulation in Swansea (SA1) and nearby Briton Ferry, Gorseinon and Neath, with a fixed written price before any work starts.

EPS insulation in Swansea

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