Brick Slip EWI in March | 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 March

March is in the PE15 postcode district, about 14 miles from Peterborough. 6 other towns we cover are within 25 miles.

We arrange surveys in March (PE15) at a time that suits you, and cover neighbouring Wisbech, Ely and Peterborough too.

We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your March home.

Brick slip EWI near March: Wisbech (8 miles), Ely (13 miles), Peterborough (14 miles), King's Lynn (19 miles), Spalding (19 miles), Huntingdon (19 miles).

Cost in March

Guide prices for brick slip external wall insulation in March 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.

The final figure depends on wall area, the number of windows and doors, the finish and how much work the roofline, sills and services need.

Key facts

Bond: Stretcher, Flemish-effect or to match
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

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 March

Rules that apply in March

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 March: questions

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

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.

Is VAT charged on brick slip external wall insulation in March?

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.

How long will the work take in March?

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 Cambridgeshire | All services in March

Brick slip external wall insulation in March