Wood fibre EWI · County Antrim
Wood fibre insulation for older homes in Carrickfergus
Homeowners and landlords in Carrickfergus can get a free survey and a fixed written quote for wood fibre external wall insulation, covering BT38 and the surrounding area. For period homes in Carrickfergus, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in BT38 and nearby
- Guide price from £150 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's included
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon
- Thicker than foam for the same U-value
Carrickfergus: walls, weather and approvals
As well as Carrickfergus itself, we quote in Holywood, Newtownabbey and Bangor (County Down). 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 older stone and early brick properties in Carrickfergus, we look at a wood fibre and lime build-up first.
- 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
Before quoting in Carrickfergus, we check whether the property is listed or in a conservation area, which changes what needs planning permission in Northern Ireland.
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.
Why do older walls need breathable insulation?
Stone and early brick walls were built with lime mortars and renders that let moisture in and out. Sealing them with impermeable materials can trap water in the wall, leading to damp and frost damage. Wood fibre keeps the build-up open to vapour, and its ability to absorb and release moisture helps the wall stay in balance.
Wood fibre insulation for older homes prices in Carrickfergus
| Item | Guide price | Notes |
|---|---|---|
| Wood fibre + lime render system | £150–£210 per m²0% VAT | Excluding scaffold |
| Cottage, about 90 m² of wall | £15,300–£22,1000% VAT | Including scaffold |
| Lime render only (no insulation) | £78–£132 per m²inc VAT | See lime render |
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. Prices include VAT at 20%.
How it works
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.
Wood fibre EWI in Carrickfergus: questions
Is wood fibre worth the extra cost?
On older solid walls the main benefit is moisture safety rather than raw U-value. If the wall needs to breathe, the cheaper option can cost more later.
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
Is wood fibre insulation fireproof?
No — it's a timber product. It chars rather than flaming readily, but it is combustible, so it's used on low-rise buildings within a tested system and never where non-combustible materials are required.
Do you cover Carrickfergus?
Yes — we survey and quote wood fibre external wall insulation in Carrickfergus (BT38) and nearby Holywood, Newtownabbey and Bangor (County Down), with a fixed written price before any work starts.