Non-traditional houses · County Antrim
Non-traditional and concrete house insulation in Belfast
Looking for non-traditional house insulation in Belfast? We survey homes across Belfast and the BT1 area, then give you a fixed written price before any work starts. Where a home in Belfast is system-built, the first job is confirming the construction type.
- Free survey in BT1 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Belfast
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
- EWI is not a structural repair for PRC houses designated defective
- Most system-built homes have thin, cold walls and no fillable cavity
- The survey identifies the construction type before anything is specified

Local considerations in Belfast
As well as Belfast itself, we quote in Castlereagh, Newtownabbey and Holywood. Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Parts of County Antrim 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 Belfast, we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- BT1
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Castlereagh, Newtownabbey, Holywood, Lisburn
Permissions in Northern Ireland
For Belfast homes, the council's planning office has the final say on external changes; conservation areas, flats and listed buildings need an application or consent.
Council building control in Northern Ireland checks insulation work of this kind; the quote says how the application is handled.
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 Belfast
| 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 Belfast: questions
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.
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 Belfast?
Yes — we survey and quote non-traditional house insulation in Belfast (BT1) and nearby Castlereagh, Newtownabbey and Holywood, with a fixed written price before any work starts.