Brick slip EWI · South Glamorgan
Brick slip finish over insulation in Cardiff
Need brick slip finishes in Cardiff? Tell us about the property and we'll arrange a free survey and a written quote. On brick terraces in Cardiff, slips can insulate the wall while keeping the street's look.
- Free survey in CF10 and nearby
- Guide price from £185 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Cardiff
Postcode, service and a phone number is all we need.
Included as standard
- Helps meet 'similar appearance' planning conditions
- Corners formed with L-shaped slips for a convincing finish
- Can be matched to local brick colours and bonds
- Thin slips (typically 10–20mm) bonded to the system base coat

What we look for in Cardiff
We cover Cardiff and nearby Penarth, Caerphilly and Barry. 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 Cardiff surveys so you can compare them with neighbouring houses.
- Postcode district
- CF10
- County or area
- South Glamorgan
- Nation
- Wales
- Nearby
- Penarth, Caerphilly, Barry, Risca
Permissions in Wales
We check Cardiff addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so 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 Cardiff
| 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%.
What happens next
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 Cardiff: questions
Can I mix brick slips and render?
Yes. A brick plinth or ground floor with render above is a common combination.
Is a brick slip finish more expensive?
Yes — roughly £70–£120 per m² more than render, because of materials and slower installation.
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.
Do you cover Cardiff?
Yes — we survey and quote brick slip finishes in Cardiff (CF10) and nearby Penarth, Caerphilly and Barry, with a fixed written price before any work starts.