Brick slip external wall insulation in Purley
We cover Purley and nearby Coulsdon for brick slip external wall insulation, with the survey, system choice, building control and finish all set out in one written quote.

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 Purley
Purley is in the CR8 postcode district, about 12 miles from London. 6 other towns we cover are within 25 miles.
From Purley we also cover Coulsdon (2 miles away), South Croydon (2 miles) and Wallington (3 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 Purley: Coulsdon (2 miles), South Croydon (2 miles), Wallington (3 miles), Carshalton (3 miles), Croydon (3 miles), Sutton (4 miles).
Cost in Purley
Guide prices for brick slip external wall insulation in Purley 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.
Whole-house prices include standard scaffolding, beads, sills and refitting services; unusual access, footpath licences and wall repairs are quoted separately.
Key facts
- Finish
- Real clay brick slips, 10–20mm
- Weight
- Heavier than render; anchor pattern checked
- 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
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 Purley
- EWI installation
- Silicone render finish
- Mineral & silicate render
- Solid wall insulation
- Park home insulation
- Social housing EWI
- EWI for landlords
- EWI surveys
Rules that apply in Purley
- Building regulations
- Insulating more than half of a wall, or more than a quarter of the whole building envelope, counts as renovating a thermal element under the Building Regulations, so the wall should reach 0.30 W/m²K where that is technically, functionally and economically feasible, and building control must be involved.
- 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 Purley: questions
How much should I budget for brick slip external wall insulation in Purley?
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 Purley and fixes the total in writing.
Do you cover Coulsdon as well as Purley?
Yes. From Purley we also cover Coulsdon, South Croydon and Wallington, and the rest of Greater London.
How long will the work take in Purley?
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.
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