Non-traditional houses · Gwent
Non-traditional and concrete house insulation in Caerphilly
Looking for non-traditional house insulation in Caerphilly? We survey homes across Caerphilly and the CF83 area, then give you a fixed written price before any work starts. Where a home in Caerphilly is system-built, the first job is confirming the construction type.
- Free survey in CF83 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Caerphilly
Postcode, service and a phone number is all we need.
What's included
- 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
- Most system-built homes have thin, cold walls and no fillable cavity

What we look for in Caerphilly
As well as Caerphilly itself, we quote in Risca, Pontypridd and Cardiff. Caerphilly sits around 9 miles from Newport (Gwent). South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Exposure to wind-driven rain varies across Gwent: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
Where one half of a pair in Caerphilly is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Postcode district
- CF83
- County or area
- Gwent
- Nation
- Wales
- Nearby
- Risca, Pontypridd, Cardiff, Newport (Gwent)
Wales: planning and regulations
We check Caerphilly 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 Caerphilly
| 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.
What happens next
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 Caerphilly: 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.
What if my neighbour isn't insulating?
We finish the system neatly at the boundary with a closing detail so the neighbouring house isn't affected and can be joined later.
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 Caerphilly?
Yes — we survey and quote non-traditional house insulation in Caerphilly (CF83) and nearby Risca, Pontypridd and Cardiff, with a fixed written price before any work starts.