Non-traditional houses · Gwynedd
Non-traditional and concrete house insulation in Holyhead
Quotes for non-traditional house insulation in Holyhead list the system, the detailing and the VAT position in writing, so you know exactly what's included. Where one half of a pair in Holyhead is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in LL65 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Holyhead
Postcode, service and a phone number is all we need.
What the job covers
- Most system-built homes have thin, cold walls and no fillable cavity
- The survey identifies the construction type before anything is specified
- Steel-framed BISF houses need care around the upper-storey cladding
- Fixing design depends on the panel or frame behind the wall

What we look for in Holyhead
As well as Holyhead itself, we quote in Llangefni, Caernarfon and Bangor (Gwynedd). 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.
Where a home in Holyhead is system-built, the first job is confirming the construction type.
- Postcode district
- LL65
- County or area
- Gwynedd
- Nation
- Wales
- Nearby
- Llangefni, Caernarfon, Bangor (Gwynedd), Llandudno
Planning and building control in Wales
We check Holyhead addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
Building control in Wales applies to most insulation and re-rendering jobs of this size; the quote states who submits the notice.
What does the work involve?
After checking the wall condition, any spalling concrete or corroded steel is reported before boards go on. Fixings are chosen for the substrate — concrete, steel-framed panels or mixed constructions — and the system is detailed around eaves, cills and the junction with neighbouring properties, which may not be insulated.
Non-traditional and concrete house insulation prices in Holyhead
| Item | Guide price | Notes |
|---|---|---|
| EWI on concrete or steel-framed walls | £120–£180 per m²0% VAT | Includes extra preparation |
| Semi-detached, full house | £11,400–£21,2000% VAT | 80–100 m² of wall, including scaffold |
| Concrete repairs found at survey | Priced separately | Only where needed |
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.
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.
Non-traditional houses in Holyhead: questions
Can you insulate a Wimpey no-fines house?
Yes. No-fines houses have solid poured-concrete walls with no cavity, so EWI is the usual route. The survey checks the concrete condition first.
Will EWI make my house mortgageable?
It can make a house more attractive and better insulated, but it does not replace a certified structural repair where a lender requires one. Ask your lender before relying on it.
Can you put EWI on a BISF house?
Yes, with care. The steel frame and upper-storey cladding need a system and fixing method designed for that construction, and the condition of the frame should be understood first.
Do you cover Holyhead?
Yes — we survey and quote non-traditional house insulation in Holyhead (LL65) and nearby Llangefni, Caernarfon and Bangor (Gwynedd), with a fixed written price before any work starts.