Brick Slip EWI in Witham | 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 Witham

Witham is in the CM8 postcode district, about 18 miles from Southend-on-Sea. 6 other towns we cover are within 25 miles.

We arrange surveys in Witham (CM8) at a time that suits you, and cover neighbouring Maldon, Braintree and Chelmsford too.

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

Brick slip EWI near Witham: Maldon (5 miles), Braintree (7 miles), Chelmsford (9 miles), Colchester (13 miles), Wickford (14 miles), Rayleigh (15 miles).

Cost in Witham

Guide prices for brick slip external wall insulation in Witham 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

Finish: Real clay brick slips, 10–20mm
Corners: L-shaped corner slips
Insulation underneath: EPS or mineral wool, as certified

Why choose it

Keeps a real brick appearance
Very durable, low-maintenance face
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.

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Rules that apply in Witham

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 Witham: questions

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

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 Witham and fixes the total in writing.

Are there grants for external wall insulation in Witham?

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.

Which EWI system suits homes in Witham?

It depends on the walls. Most brick houses in Witham 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.

Brick slip EWI | Brick slip EWI in Essex | All services in Witham

Brick slip external wall insulation in Witham