Brick Slip EWI in Caerphilly | Prices & Free Survey

Brick slip external wall insulation in Caerphilly

Looking for brick slip external wall insulation in Caerphilly? We survey homes across Mid Glamorgan and the CF83 postcode district, measure every wall and give you a fixed price in writing before any work is booked.

£185–£265 per m²installed, slips and pointing included; scaffolding priced per house

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 Caerphilly

Caerphilly is in the CF83 postcode district, about 11 miles from Rhondda. 6 other towns we cover are within 25 miles.

From Caerphilly we also cover Risca (6 miles away), Pontypridd (6 miles) and Cardiff (7 miles).

Parts of Mid Glamorgan see high levels of wind-driven rain, so render specification and the details at sills and the roofline get extra attention.

Brick slip EWI near Caerphilly: Risca (6 miles), Pontypridd (6 miles), Cardiff (7 miles), Newport, Gwent (9 miles), Penarth (10 miles), Cwmbran (10 miles).

Cost in Caerphilly

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

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

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 Caerphilly

Rules that apply in Caerphilly

Planning: Welsh guidance allows cladding a house without an application if the materials look similar to the original, but external wall insulation that projects more than 16cm from the wall needs planning permission. Any cladding or render in a conservation area, National Park, AONB or World Heritage Site needs permission, listed buildings need consent, and permitted development rights may have been removed by condition or Article 4 direction.
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 Caerphilly: questions

Is building control approval needed for brick slip external wall insulation in Caerphilly?

Wales has its own Building Regulations and Approved Document L. Renovating a large part of an external wall brings the energy standards into play, so building control approval is needed for EWI. We arrange it as part of the job.

Are there grants for external wall insulation in Caerphilly?

Warm Homes Nest provides free improvements to low-income owner-occupiers and private tenants, and the Green Homes Wales pilot has offered interest-free loans to households above those thresholds. ECO4 closes on 31 December 2026. These schemes use their own approved installers; our quotes are for privately funded work unless we confirm otherwise in writing.

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

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.

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