Solid wall insulation · County Antrim
Solid wall insulation in Carrickfergus
Homeowners and landlords in Carrickfergus can get a free survey and a fixed written quote for solid wall insulation, covering BT38 and the surrounding area. On solid-walled houses in Carrickfergus, the gable or the most weather-exposed wall is often the place to start.
- Free survey in BT38 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Carrickfergus
Postcode, service and a phone number is all we need.
What you get
- Breathable options for stone and lime-mortared walls
- Internal insulation suits single rooms or where the outside can't change
- External insulation keeps room sizes and treats cold bridges well
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
What we look for in Carrickfergus
Surveys in Carrickfergus also cover the surrounding BT38 district and towns such as Holywood and Newtownabbey. It's roughly 10 miles from Carrickfergus to Belfast, the largest town in County Antrim. 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.
For solid-walled homes in Carrickfergus, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- BT38
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Holywood, Newtownabbey, Bangor (County Down), Belfast
Planning and building control in Northern Ireland
For Carrickfergus homes, the council's planning office has the final say on external changes; conservation areas, flats and listed buildings need an application or consent.
Building control applies to insulation and major re-rendering in Northern Ireland, and the work is signed off by the council.
External or internal — which is better?
External insulation keeps the wall warm, reduces cold bridging at floors and party walls, renews the outside, and doesn't shrink rooms — but it changes the look and needs scaffolding. Internal insulation keeps the façade unchanged and can be done room by room, but loses 50–100mm of floor space per wall and needs careful detailing to avoid condensation at joists and corners.
Solid wall insulation prices in Carrickfergus
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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
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.
Solid wall insulation in Carrickfergus: questions
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Do you cover Carrickfergus?
Yes — we survey and quote solid wall insulation in Carrickfergus (BT38) and nearby Holywood, Newtownabbey and Bangor (County Down), with a fixed written price before any work starts.