EPS insulation · Hampshire
EPS external wall insulation in Southampton
EPS external wall insulation in Southampton: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Where eaves are shallow on a house in Southampton, grey EPS can sometimes avoid the cost of extending the roofline.
- Free survey in SO15 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Southampton
Postcode, service and a phone number is all we need.
What's included
- Finished in silicone, acrylic, mineral render or brick slip
- Easy to shape around bays, arches and reveals
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Used on low-rise houses; combustible, so not for taller buildings
What we look for in Southampton
As well as Southampton itself, we quote in Hythe, Totton and Eastleigh. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Exposure to wind-driven rain varies across Hampshire: 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 Southampton.
- Postcode district
- SO15
- County or area
- Hampshire
- Nation
- England
- Nearby
- Hythe, Totton, Eastleigh, Fareham
Approvals in England
For a house in Southampton, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 Southampton
| 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
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.
EPS insulation in Southampton: 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.
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 Southampton?
Yes — we survey and quote EPS external wall insulation in Southampton (SO15) and nearby Hythe, Totton and Eastleigh, with a fixed written price before any work starts.