Brick slip external wall insulation in Lisburn
Every brick slip external wall insulation job in Lisburn starts with a free survey of your walls: what they are built from, how they have weathered, and what the details around windows, eaves and services will need.
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 Lisburn
Lisburn is in the BT28 postcode district, about 7 miles from Belfast. 6 other towns we cover are within 25 miles.
Our Lisburn surveys cover the BT28 district and the surrounding area, including Belfast, Castlereagh and Newtownabbey.
In exposed parts of County Antrim, we pay particular attention to how rain is shed at the eaves, sills and corners, where wind-driven water finds its way in.
Brick slip EWI near Lisburn: Belfast (7 miles), Castlereagh (7 miles), Newtownabbey (11 miles), Newtownards (15 miles), Craigavon (15 miles), Banbridge (16 miles).
Cost in Lisburn
Guide prices for brick slip external wall insulation in Lisburn 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
- Bond
- Stretcher, Flemish-effect or to match
- Corners
- L-shaped corner slips
- Best for
- Brick streets, planning-sensitive fronts
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 Lisburn
- Insulated cladding
- Solid wall insulation
- Non-traditional houses
- Bungalow EWI
- Park home insulation
- Social housing EWI
- EWI repairs
- Failed EWI remediation
Rules that apply in Lisburn
- Building regulations
- 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.
- 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 Lisburn: questions
Do I need planning permission for external wall insulation in Lisburn?
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.
Are there grants for external wall insulation in Lisburn?
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.
How long will the work take in Lisburn?
Two to six weeks on site for most houses, depending on size: bungalows are quicker, detached houses longer, weather allowing. Render isn't applied in rain or frost.
Brick slip EWI | Brick slip EWI in County Antrim | All services in Lisburn