Non-traditional houses · Northamptonshire
Non-traditional and concrete house insulation in Corby
If you're planning non-traditional house insulation in Corby, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For concrete houses in Corby, we report any visible spalling or cracking before quoting the insulation, not after.
- Free survey in NN17 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Corby
Postcode, service and a phone number is all we need.
Included as standard
- Steel-framed BISF houses need care around the upper-storey cladding
- Most system-built homes have thin, cold walls and no fillable cavity
- The survey identifies the construction type before anything is specified
- EWI improves comfort and can renew a tired concrete exterior

What we look for in Corby
We cover Corby and nearby Uppingham, Kettering and Market Harborough. It's roughly 19 miles from Corby to Northampton, the largest town in Northamptonshire. Housing in the East Midlands includes Victorian terraces in the towns and cities, plenty of inter-war semis and post-war council estates, some of them system-built.
Much of Northamptonshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
Where a home in Corby is system-built, the first job is confirming the construction type.
- Postcode district
- NN17
- County or area
- Northamptonshire
- Nation
- England
- Nearby
- Uppingham, Kettering, Market Harborough, Oakham
Permissions in England
For a house in Corby, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's 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 Corby
| 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 Corby: 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.
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.
Do you cover Corby?
Yes — we survey and quote non-traditional house insulation in Corby (NN17) and nearby Uppingham, Kettering and Market Harborough, with a fixed written price before any work starts.