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External-Wall-InsulationInsulated render, slips and cladding across the UK

Brick slip external wall insulation in Castlereagh

Looking for brick slip external wall insulation in Castlereagh? We survey homes across County Antrim and the BT5 postcode district, measure every wall and give you a fixed price in writing before any work is booked.

£185–£265 per m²installed, slips and pointing included; scaffolding priced per house
Red brick slips being laid and pointed over insulation on a house wall, the upper wall still in basecoat

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 Castlereagh

Castlereagh is in the BT5 postcode district, about 2 miles from Belfast. 6 other towns we cover are within 25 miles.

From Castlereagh we also cover Belfast (2 miles away), Newtownabbey (6 miles) and Lisburn (7 miles).

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 Castlereagh: Belfast (2 miles), Newtownabbey (6 miles), Lisburn (7 miles), Newtownards (8 miles), Carrickfergus (10 miles), Bangor, Down (11 miles).

Cost in Castlereagh

Guide prices for brick slip external wall insulation in Castlereagh 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.

Brick slips, cladding and mineral wool cost more than EPS and render; the survey shows you the difference side by side.

Key facts

Bond
Stretcher, Flemish-effect or to match
Insulation underneath
EPS or mineral wool, as certified
Weight
Heavier than render; anchor pattern checked

Why choose it

  • Often an easier route through planning than render on brick streets
  • Very durable, low-maintenance face
  • Can mix with render on side and rear walls to manage cost

Can brick slips match my existing bricks?

Slips come in a wide range of colours and textures, and a close match is often possible. An exact match to weathered Victorian brick is hard; we bring samples to the survey and you see them against your wall in daylight before ordering.

More services in Castlereagh

Rules that apply in Castlereagh

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 Castlereagh: questions

Do I need planning permission for external wall insulation in Castlereagh?

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 VAT charged on brick slip external wall insulation in Castlereagh?

Not on installing insulation in a home at the moment: that's zero-rated until 31 March 2027, after which the rate is due to be 5%. Work on commercial buildings is standard-rated.

Do you cover Belfast as well as Castlereagh?

Yes. From Castlereagh we also cover Belfast, Newtownabbey and Lisburn, and the rest of County Antrim.

Brick slip EWI | Brick slip EWI in County Antrim | All services in Castlereagh

Find out what your walls need

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