Non-traditional houses · Gwynedd
Non-traditional and concrete house insulation in Bangor (Gwynedd)
Homeowners and landlords in Bangor (Gwynedd) can get a free survey and a fixed written quote for non-traditional house insulation, covering LL57 and the surrounding area. Where a home in Bangor (Gwynedd) is system-built, the first job is confirming the construction type.
- Free survey in LL57 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Bangor (Gwynedd)
Postcode, service and a phone number is all we need.
What you get
- The survey identifies the construction type before anything is specified
- EWI is not a structural repair for PRC houses designated defective
- EWI improves comfort and can renew a tired concrete exterior
- Fixing design depends on the panel or frame behind the wall
What we look for in Bangor (Gwynedd)
Surveys in Bangor (Gwynedd) also cover the surrounding LL57 district and towns such as Llangefni and Caernarfon. 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.
For concrete houses in Bangor (Gwynedd), we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- LL57
- County or area
- Gwynedd
- Nation
- Wales
- Nearby
- Llangefni, Caernarfon, Llandudno, Colwyn Bay
Wales: planning and regulations
Householder rules in Wales are similar to England's: in Bangor (Gwynedd), a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
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.
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 Bangor (Gwynedd)
| 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
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.
Non-traditional houses in Bangor (Gwynedd): questions
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.
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.
Do you cover Bangor (Gwynedd)?
Yes — we survey and quote non-traditional house insulation in Bangor (Gwynedd, LL57) and nearby Llangefni, Caernarfon and Llandudno, with a fixed written price before any work starts.