Non-traditional houses · Northern Ireland
Non-traditional and concrete house insulation in County Down
Get guide prices online, then a free survey and fixed quote for non-traditional house insulation in County Down, including Castlereagh and Newtownards. Where one half of a pair in County Down is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey and fixed written price
- Guide price from £120 per m² + scaffold, 0% VAT
- Planning and building control checked for Northern Ireland
Free survey in County Down
Tell us the postcode and what you need.
Included as standard
- EWI improves comfort and can renew a tired concrete exterior
- Most system-built homes have thin, cold walls and no fillable cavity
- EWI is not a structural repair for PRC houses designated defective
- Fixing design depends on the panel or frame behind the wall
- Steel-framed BISF houses need care around the upper-storey cladding
Local considerations in County Down
Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Exposure to wind-driven rain varies across County Down: 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.
For concrete houses in County Down, we report any visible spalling or cracking before quoting the insulation, not after.
- Nation
- Northern Ireland
- Region
- Northern Ireland
- Towns covered
- Bangor (County Down), Castlereagh, Newtownards, Newry, Banbridge, Holywood, Downpatrick
- Guide price
- From £120 per m² + scaffold · 0% VAT
Permissions in Northern Ireland
In Northern Ireland, permitted development is set by the Planning (General Permitted Development) Order (NI) 2015. Changing the external appearance of a house may need permission, and conservation areas, flats, commercial buildings and listed buildings need planning permission or listed building consent. Check with your council's planning office.
Insulating external walls is building work under the Building Regulations (Northern Ireland) 2012, handled by council building control, with Technical Booklet F1 covering conservation of fuel and power in dwellings.
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 County Down
| 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 County Down: 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 all of County Down?
Yes. We survey and quote non-traditional house insulation across County Down, including Bangor (County Down), Castlereagh, Newtownards, Newry, Banbridge.
Do I need planning permission in Northern Ireland?
In Northern Ireland, permitted development is set by the Planning (General Permitted Development) Order (NI) 2015. We check your address before quoting.