Brick slip external wall insulation in Aberystwyth
Brick slip external wall insulation in Aberystwyth and across Dyfed, priced from a free survey and installed with photographs of every hidden detail.

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 Aberystwyth
Aberystwyth is in the SY23 postcode district. Surveys here are by appointment.
Dyfed has some of the UK's more exposed locations for wind-driven rain, which shapes the render and detailing we specify.
Cost in Aberystwyth
Guide prices for brick slip external wall insulation in Aberystwyth 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
- Weight
- Heavier than render; anchor pattern checked
- 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
- Very durable, low-maintenance face
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 Aberystwyth
- EPS insulated render
- Insulated cladding
- Insulating lime render
- Terraced house EWI
- Flats & low-rise blocks
- Social housing EWI
- EWI for landlords
- EWI surveys
Rules that apply in Aberystwyth
- Funding
- 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. Grants guide
- 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 Aberystwyth: questions
Do I need planning permission for external wall insulation in Aberystwyth?
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.
How long will the work take in Aberystwyth?
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.
Which EWI system suits homes in Aberystwyth?
It depends on the walls. Most brick houses in Aberystwyth 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.
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