Brick slip external wall insulation in Cwmbran
Looking for brick slip external wall insulation in Cwmbran? We survey homes across Gwent and the NP44 postcode district, measure every wall and give you a fixed price in writing before any work is booked.

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 Cwmbran
Cwmbran is in the NP44 postcode district, about 5 miles from Newport in Gwent. 6 other towns we cover are within 25 miles.
From Cwmbran we also cover Pontypool (3 miles away), Risca (5 miles) and Newport in Gwent (5 miles).
Whatever the exposure of your street, the details at sills, eaves and the base of the wall are what keep an EWI system dry, and we draw them before work starts.
Brick slip EWI near Cwmbran: Pontypool (3 miles), Risca (5 miles), Newport, Gwent (5 miles), Caerphilly (10 miles), Ebbw Vale (12 miles), Cardiff (14 miles).
Cost in Cwmbran
Guide prices for brick slip external wall insulation in Cwmbran 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.
What moves the price most is the board and finish you choose, the access around the house, and details such as roofline extensions or moving a gas meter.
Key facts
- Finish
- Real clay brick slips, 10–20mm
- Insulation underneath
- EPS or mineral wool, as certified
- 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
- 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 Cwmbran
- EWI installation
- Insulated cladding
- Insulating lime render
- Pebbledash & dry dash EWI
- Solid wall insulation
- Detached house EWI
- Flats & low-rise blocks
- EWI surveys
Rules that apply in Cwmbran
- Funding
- Warm Homes Nest provides free improvements to low-income owner-occupiers and private tenants, and the Green Homes Wales pilot has offered interest-free loans to households above those thresholds. ECO4 closes on 31 December 2026. These schemes use their own approved installers; 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 Cwmbran: questions
How much should I budget for brick slip external wall insulation in Cwmbran?
Budget around £185–£265 per square metre of wall for the system and finish, plus scaffolding priced per house. The survey measures your walls in Cwmbran and fixes the total in writing.
How long will the work take in Cwmbran?
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.
Which EWI system suits homes in Cwmbran?
It depends on the walls. Most brick houses in Cwmbran 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.
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