Non-traditional houses · Dyfed
Non-traditional and concrete house insulation in Aberystwyth
Looking for non-traditional house insulation in Aberystwyth? We survey homes across Aberystwyth and the SY23 area, then give you a fixed written price before any work starts. Where one half of a pair in Aberystwyth is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in SY23 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Aberystwyth
Postcode, service and a phone number is all we need.
What you get
- The survey identifies the construction type before anything is specified
- Most system-built homes have thin, cold walls and no fillable cavity
- EWI improves comfort and can renew a tired concrete exterior
- EWI is not a structural repair for PRC houses designated defective

What we look for in Aberystwyth
We also cover Llandrindod Wells and Newtown, close to Aberystwyth. Aberystwyth is about 51 miles from Llanelli. 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 Aberystwyth is system-built, the first job is confirming the construction type.
- Postcode district
- SY23
- County or area
- Dyfed
- Nation
- Wales
- Nearby
- Llandrindod Wells, Newtown, Carmarthen, Welshpool
Planning and building control in Wales
We check Aberystwyth addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
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.
Does EWI fix mortgage problems with PRC houses?
Not on its own. Some precast reinforced concrete (PRC) house types were designated defective, and many lenders want a certified structural repair before they will lend. Insulation and render over the outside is not that repair. Other types, such as Wimpey no-fines, are generally treated differently. If mortgageability matters, speak to your lender or a surveyor before booking any work.
Non-traditional and concrete house insulation prices in Aberystwyth
| 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
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Non-traditional houses in Aberystwyth: 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 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 Aberystwyth?
Yes — we survey and quote non-traditional house insulation in Aberystwyth (SY23) and nearby Llandrindod Wells, Newtown and Carmarthen, with a fixed written price before any work starts.