Brick Slip EWI in Truro | 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 Truro

Truro is in the TR1 postcode district. 6 other towns we cover are within 25 miles.

We arrange surveys in Truro (TR1) at a time that suits you, and cover neighbouring Falmouth, Redruth and Newquay too.

In exposed parts of Cornwall, we pay particular attention to how rain is shed at the eaves, sills and corners, where wind-driven water finds its way in.

Brick slip EWI near Truro: Falmouth (8 miles), Redruth (8 miles), Newquay (10 miles), Camborne (11 miles), St Austell (13 miles), Bodmin (20 miles).

Cost in Truro

Guide prices for brick slip external wall insulation in Truro 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

Bond: Stretcher, Flemish-effect or to match
Corners: L-shaped corner slips
Best for: Brick streets, planning-sensitive fronts

Why choose it

Often an easier route through planning than render on brick streets
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 Truro

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 Truro: questions

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

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.

Are there grants for external wall insulation in Truro?

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.

How long will the work take in Truro?

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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Brick slip external wall insulation in Truro