Commercial EWI · Gwynedd
Commercial and public building EWI in Holyhead
Commercial and public building EWI in Holyhead: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Schools and community buildings around Holyhead are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in LL65 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Holyhead
Postcode, service and a phone number is all we need.
What you get
- Colour and texture options to suit brand or setting
- Non-combustible systems where use or height requires them
- Contract roles under CDM 2015 agreed at the start
- Programmes phased around opening hours and term dates

Homes and walls in Holyhead
We also cover Llangefni and Caernarfon, close to Holyhead. It's roughly 22 miles from Holyhead to Bangor (Gwynedd), the largest town 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 provide drawings and finish samples for planning applications on Holyhead commercial buildings.
- Postcode district
- LL65
- County or area
- Gwynedd
- Nation
- Wales
- Nearby
- Llangefni, Caernarfon, Bangor (Gwynedd), Llandudno
Permissions in Wales
For homes in Holyhead, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
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.
Wales applies its own external wall fire rules, updated in 2025; on taller residential buildings we specify non-combustible mineral wool systems.
Does commercial EWI need planning permission?
Generally yes — permitted development rights for external wall changes are written for houses. Applications need elevations showing the projection, finish and colours, and details at eaves and openings.
Commercial and public building EWI prices in Holyhead
| Item | Guide price | Notes |
|---|---|---|
| Insulated render system | £110–£200 per m²+ VAT | Priced on survey |
| Render refurbishment without insulation | £55–£95 per m²+ VAT | Silicone or mineral |
| Access and scaffold | Per building | Includes edge protection |
Confirmed by a fixed written quote after survey. Business prices shown before VAT, which is added at 20%. Buildings used solely for a relevant charitable purpose can qualify for 0% on insulation.
From enquiry to finished wall
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Commercial EWI in Holyhead: questions
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
Do you handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Is VAT 0% on commercial insulation?
Usually not. The zero rate covers insulation installed in residential accommodation and, since 1 February 2024, buildings used solely for a relevant charitable purpose, such as many charity-run village halls. Other commercial work is standard-rated.
Do you cover Holyhead?
Yes — we survey and quote commercial external wall insulation in Holyhead (LL65) and nearby Llangefni, Caernarfon and Bangor (Gwynedd), with a fixed written price before any work starts.