Brick Slip EWI in Harlow | Prices & Free Survey

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 Harlow

Harlow is in the CM17 postcode district. 6 other towns we cover are within 25 miles.

From Harlow we also cover Hoddesdon (5 miles away), Bishop's Stortford (7 miles) and Waltham Abbey (8 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 Harlow: Hoddesdon (5 miles), Bishop's Stortford (7 miles), Waltham Abbey (8 miles), Cheshunt (8 miles), Hertford (8 miles), Chingford (11 miles).

Cost in Harlow

Guide prices for brick slip external wall insulation in Harlow 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
Insulation underneath: EPS or mineral wool, as certified

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 Harlow

Rules that apply in Harlow

Funding: Low-income households in homes rated below EPC C can apply for Warm Homes: Local Grant where their council is taking part. The Great British Insulation Scheme closed on 31 March 2026, and ECO4 closes on 31 December 2026; its final months are for finishing and putting right existing work. Grant schemes use their own approved installers, so check a scheme's installer rules before booking; 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 Harlow: questions

How much should I budget for brick slip external wall insulation in Harlow?

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 Harlow and fixes the total in writing.

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

On a house, external wall insulation is usually permitted development if the finish looks similar to the existing walls. Render or cladding on a house in a conservation area, National Park, National Landscape (AONB), the Broads or a World Heritage Site needs planning permission. Flats and maisonettes have no householder permitted development rights, listed buildings need listed building consent, and an Article 4 direction can remove rights locally.

Which EWI system suits homes in Harlow?

It depends on the walls. Most brick houses in Harlow 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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Brick slip external wall insulation in Harlow