Brick slip EWI · Wales
Brick slip finish over insulation in South Glamorgan
Quotes for brick slip finishes in South Glamorgan set out the system, detailing, access and VAT position in writing. We bring brick slip samples to South Glamorgan surveys so you can compare them with neighbouring houses.
- Free survey and fixed written price
- Guide price from £185 per m² + scaffold, 0% VAT
- Planning and building control checked for Wales
Free survey in South Glamorgan
Tell us the postcode and what you need.
Part of every quote
- Clay, concrete or flexible acrylic slips available
- Thin slips (typically 10–20mm) bonded to the system base coat
- Corners formed with L-shaped slips for a convincing finish
- Heavier than render, so more fixings are specified
- Helps meet 'similar appearance' planning conditions

What we look for in South Glamorgan
South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across South Glamorgan: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
We bring brick slip samples to South Glamorgan surveys so you can compare them with neighbouring houses.
- Nation
- Wales
- Region
- South Wales
- Towns covered
- Cardiff, Barry, Penarth
- Guide price
- From £185 per m² + scaffold · 0% VAT
Permissions in Wales
Permitted development rules for houses in Wales are similar to England's: a similar-appearance finish on a house is often permitted, while conservation areas, National Parks, Areas of Outstanding Natural Beauty, flats, commercial buildings and listed buildings need permission or consent. Your local planning authority has the final word.
The Building Regulations as they apply in Wales treat insulating or re-rendering more than half of a wall's area, or more than a quarter of the building's whole envelope, as renovating a thermal element, with Approved Document L (Wales) setting the target. Building control is involved before work starts.
Why choose brick slips over render?
Permitted development for houses in England and Wales generally expects materials of a similar appearance to the existing walls. On a brick terrace or estate, render can change the street scene, while brick slips keep it. Some owners simply prefer the brick look.
Brick slip finish over insulation prices in South Glamorgan
| Item | Guide price | Notes |
|---|---|---|
| Brick slip EWI | £185–£260 per m²0% VAT | Excluding scaffold |
| Brick slip feature panels | £168–£265 per m²inc VAT | Plinths, bays, features |
| Matching samples | Provided at survey |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027. Prices include VAT at 20%.
From enquiry to finished wall
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Brick slip EWI in South Glamorgan: questions
Can I mix brick slips and render?
Yes. A brick plinth or ground floor with render above is a common combination.
Will brick slips match my neighbours' brick?
We source slips to get close in colour and texture and show samples beforehand, but an exact match to weathered brick isn't always possible.
Is a brick slip finish more expensive?
Yes — roughly £70–£120 per m² more than render, because of materials and slower installation.
Do you cover all of South Glamorgan?
Yes. We survey and quote brick slip finishes across South Glamorgan, including Cardiff, Barry, Penarth.
Do I need planning permission in Wales?
Permitted development rules for houses in Wales are similar to England's: a similar-appearance finish on a house is often permitted, while conservation areas, National Parks, Areas of Outstanding Natural Beauty, flats, commercial buildings and listed buildings need permission or consent. We check your address before quoting.