EPS insulation · County Antrim
EPS external wall insulation in Larne
We quote EPS external wall insulation for homes in Larne (BT40) and nearby Carrickfergus and Newtownabbey, with guide prices online and a free survey to fix the price. Where eaves are shallow on a house in Larne, grey EPS can sometimes avoid the cost of extending the roofline.
- Free survey in BT40 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Larne
Postcode, service and a phone number is all we need.
Part of every quote
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Light boards mean fewer fixings and a faster install
- Grey graphite EPS reaches a given U-value with a thinner board
- Used on low-rise houses; combustible, so not for taller buildings

Homes and walls in Larne
We cover Larne and nearby Carrickfergus, Newtownabbey and Bangor (County Down). Larne is about 19 miles from Belfast. Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Parts of County Antrim 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 Larne enquiry rather than assuming one board suits every wall.
- Postcode district
- BT40
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Carrickfergus, Newtownabbey, Bangor (County Down), Holywood
Planning and building control in Northern Ireland
In Northern Ireland, permitted development is set by the 2015 Order; in Larne, changing a house's external appearance, and any work on flats or listed buildings, may need permission, so we check with the council.
External wall insulation is building work under the Building Regulations (Northern Ireland) 2012, so council building control is involved, with Technical Booklet F1 covering dwellings.
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 Larne
| 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
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 Larne: 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 Larne?
Yes — we survey and quote EPS external wall insulation in Larne (BT40) and nearby Carrickfergus, Newtownabbey and Bangor (County Down), with a fixed written price before any work starts.