Brick slip external wall insulation in Brentwood
If you live in Brentwood (CM14) and your walls are solid, system-built or simply cold, brick slip external wall insulation may be the most effective upgrade you can make without losing any room inside.

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 Brentwood
Brentwood is in the CM14 postcode district, about 18 miles from Southend-on-Sea. 6 other towns we cover are within 25 miles.
We arrange surveys in Brentwood (CM14) at a time that suits you, and cover neighbouring Billericay, Hornchurch and Romford too.
We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your Brentwood home.
Brick slip EWI near Brentwood: Billericay (5 miles), Hornchurch (6 miles), Romford (6 miles), Basildon (7 miles), Dagenham (8 miles), South Ockendon (8 miles).
Cost in Brentwood
Guide prices for brick slip external wall insulation in Brentwood 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
- 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.
More services in Brentwood
- Mineral wool EWI
- Phenolic EWI
- Silicone render finish
- Mineral & silicate render
- Solid wall insulation
- Terraced house EWI
- Semi-detached EWI
- EWI repairs
Rules that apply in Brentwood
- 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 Brentwood: questions
How much should I budget for brick slip external wall insulation in Brentwood?
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 Brentwood and fixes the total in writing.
Are there grants for external wall insulation in Brentwood?
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.
Is VAT charged on brick slip external wall insulation in Brentwood?
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.
Brick slip EWI | Brick slip EWI in Essex | All services in Brentwood