Brick slip external wall insulation in Carrickfergus
Brick slip external wall insulation in Carrickfergus and across County Antrim, priced from a free survey and installed with photographs of every hidden detail.

What is brick slip external wall insulation?
Brick slip external wall insulation is an EWI system finished with 10–20mm thick clay brick slips, bonded with adhesive onto a reinforced basecoat over the insulation and then pointed. Corner slips return around external corners so the finish reads as solid brickwork.
Brick slip EWI around Carrickfergus
Carrickfergus is in the BT38 postcode district, about 10 miles from Belfast. 6 other towns we cover are within 25 miles.
We arrange surveys in Carrickfergus (BT38) at a time that suits you, and cover neighbouring Newtownabbey, Bangor in County Down and Larne too.
County Antrim has some of the UK's more exposed locations for wind-driven rain, which shapes the render and detailing we specify.
Brick slip EWI near Carrickfergus: Newtownabbey (6 miles), Bangor, Down (7 miles), Larne (9 miles), Belfast (10 miles), Newtownards (10 miles), Castlereagh (10 miles).
Cost in Carrickfergus
Guide prices for brick slip external wall insulation in Carrickfergus run from about £185 to £265 per square metre installed, slips and pointing included; scaffolding priced per house, with VAT at 0% on homes until 31 March 2027.
Bays, gables, conservatory junctions and narrow side passages take longer than plain walls, so the survey prices your actual house rather than an average.
Key facts
- Finish
- Real clay brick slips, 10–20mm
- Bond
- Stretcher, Flemish-effect or to match
- Corners
- L-shaped corner slips
Why choose it
- Keeps a real brick appearance
- Often an easier route through planning than render on brick streets
- Very durable, low-maintenance face
Why is a brick slip finish more expensive?
Slips are a material cost on their own, they are laid by hand course by course, corners need special pieces, and the whole face is pointed. Expect brick slip finishes to cost noticeably more per square metre than render.
More services in Carrickfergus
- EPS insulated render
- Mineral wool EWI
- Terraced house EWI
- Semi-detached EWI
- Detached house EWI
- Park home insulation
- Failed EWI remediation
- EWI surveys
Rules that apply in Carrickfergus
- Funding
- The Affordable Warmth Scheme, delivered through councils for the Housing Executive, helps owner-occupiers and private tenants with household income under £23,000, with grants up to £10,000 where solid wall insulation is needed. Approval must be in writing before work starts, and the council arranges the work through its own process. Our quotes are for privately funded work unless we confirm otherwise in writing. Grants guide
- VAT
- Installing insulation in a home is zero-rated for VAT until 31 March 2027, then 5%.
Checked October 2026. Rules change, so we confirm them for your address at survey.
Brick slip EWI in Carrickfergus: questions
Do I need planning permission for external wall insulation in Carrickfergus?
Planning in Northern Ireland is handled by the 11 councils. Changes that alter a house's appearance, work on flats, listed buildings and conservation areas should be checked with the council planning office before work is booked.
Is building control approval needed for brick slip external wall insulation in Carrickfergus?
EWI is controlled under the Building Regulations (Northern Ireland) 2012, with energy standards in Technical Booklet F and fire in Technical Booklet E, so you need building control approval from your council. We arrange it as part of the job.
Which EWI system suits homes in Carrickfergus?
It depends on the walls. Most brick houses in Carrickfergus suit EPS with silicone render; older stone or lime-built walls suit wood fibre or insulating lime render; and blocks need mineral wool. The free survey recommends one and explains why.
Brick slip EWI | Brick slip EWI in County Antrim | All services in Carrickfergus