Brick slip EWI · Gwynedd
Brick slip finish over insulation in Caernarfon
Brick slip finish over insulation in Caernarfon: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Mixed finishes — brick slip below, render above — can suit semi-detached houses in Caernarfon.
- Free survey in LL55 and nearby
- Guide price from £185 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Caernarfon
Postcode, service and a phone number is all we 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
- Helps meet 'similar appearance' planning conditions
Homes and walls in Caernarfon
Surveys in Caernarfon also cover the surrounding LL55 district and towns such as Llangefni and Bangor (Gwynedd). Caernarfon sits around 8 miles from Bangor (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.
On brick terraces in Caernarfon, slips can insulate the wall while keeping the street's look.
- Postcode district
- LL55
- County or area
- Gwynedd
- Nation
- Wales
- Nearby
- Llangefni, Bangor (Gwynedd), Holyhead, Llandudno
Planning and building control in Wales
Householder rules in Wales are similar to England's: in Caernarfon, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
How is the brick slip system built up?
Insulation boards are fixed as for any EWI, followed by a reinforced base coat. The slips are bonded with the system adhesive, spaced for joints, then pointed. Corners use L-shaped slips so the edge looks like a solid brick.
Brick slip finish over insulation prices in Caernarfon
| 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 Caernarfon: 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 Caernarfon?
Yes — we survey and quote brick slip finishes in Caernarfon (LL55) and nearby Llangefni, Bangor (Gwynedd) and Holyhead, with a fixed written price before any work starts.