Non-traditional houses · Dyfed
Non-traditional and concrete house insulation in Llanelli
Non-traditional and concrete house insulation in Llanelli: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For concrete houses in Llanelli, we report any visible spalling or cracking before quoting the insulation, not after.
- Free survey in SA15 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Llanelli
Postcode, service and a phone number is all we need.
Part of every quote
- Steel-framed BISF houses need care around the upper-storey cladding
- The survey identifies the construction type before anything is specified
- Most system-built homes have thin, cold walls and no fillable cavity
- EWI is not a structural repair for PRC houses designated defective

Homes and walls in Llanelli
We cover Llanelli and nearby Gorseinon, Swansea and Ammanford. West Wales has a high share of older solid-walled and stone homes, many in exposed coastal or rural settings.
Parts of Dyfed 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 Llanelli is system-built, the first job is confirming the construction type.
- Postcode district
- SA15
- County or area
- Dyfed
- Nation
- Wales
- Nearby
- Gorseinon, Swansea, Ammanford, Carmarthen
Planning and building control in Wales
For homes in Llanelli, 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.
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 Llanelli
| 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.
How it works
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 Llanelli: 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.
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 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 Llanelli?
Yes — we survey and quote non-traditional house insulation in Llanelli (SA15) and nearby Gorseinon, Swansea and Ammanford, with a fixed written price before any work starts.