Brick slip EWI · Wales
Brick slip finish over insulation in Gwynedd
Quotes for brick slip finishes in Gwynedd set out the system, detailing, access and VAT position in writing. Mixed finishes — brick slip below, render above — can suit semi-detached houses in Gwynedd.
- 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 Gwynedd
Tell us the postcode and what you need.
What the job covers
- Can be matched to local brick colours and bonds
- Clay, concrete or flexible acrylic slips available
- Heavier than render, so more fixings are specified
- Helps meet 'similar appearance' planning conditions
- Thin slips (typically 10–20mm) bonded to the system base coat
Homes and walls in Gwynedd
North Wales has many solid stone and slate-built homes, Victorian seaside terraces and post-war council estates.
Parts of Gwynedd fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
We bring brick slip samples to Gwynedd surveys so you can compare them with neighbouring houses.
- Nation
- Wales
- Region
- North Wales
- Towns covered
- Bangor (Gwynedd), Holyhead, Caernarfon, Llangefni
- Guide price
- From £185 per m² + scaffold · 0% VAT
Wales: planning and regulations
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.
Are brick slips real brick?
They can be — cut or manufactured clay slips — or concrete and flexible polymer slips designed to look like brick. Clay slips are heavier and need systems rated for that weight.
Brick slip finish over insulation prices in Gwynedd
| 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%.
How it works
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Brick slip EWI in Gwynedd: questions
Is a brick slip finish more expensive?
Yes — roughly £70–£120 per m² more than render, because of materials and slower installation.
Do brick slips fall off?
Not when installed to the system manufacturer's specification, with the right adhesive, fixings and pointing.
Can I mix brick slips and render?
Yes. A brick plinth or ground floor with render above is a common combination.
Do you cover all of Gwynedd?
Yes. We survey and quote brick slip finishes across Gwynedd, including Bangor (Gwynedd), Holyhead, Caernarfon, Llangefni.
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.