Internal wall insulation · Northamptonshire
Internal wall insulation in Kettering
Need internal wall insulation in Kettering? Tell us about the property and we'll arrange a free survey and a written quote. Where a property in Kettering is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in NN16 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Kettering
Postcode, service and a phone number is all we need.
Included as standard
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Insulated plasterboard, stud wall or breathable systems
- Can be done one room at a time during a renovation

What we look for in Kettering
Surveys in Kettering also cover the surrounding NN16 district and towns such as Wellingborough and Corby. It's roughly 12 miles from Kettering 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.
We plan internal insulation in Kettering homes room by room so you keep the rest of the house usable.
- Postcode district
- NN16
- County or area
- Northamptonshire
- Nation
- England
- Nearby
- Wellingborough, Corby, Rushden, Market Harborough
England: planning and regulations
Planning isn't usually involved with internal insulation. Building control is, once more than half of a wall is treated, and listed buildings need listed building consent.
Do I need Building Regulations approval?
Yes, in England and Wales once you insulate or replaster more than half of a wall's area (or more than a quarter of the building's whole envelope), it's treated as renovating a thermal element. The wall should reach about 0.30 W/m²K where practical, and building control needs to be involved.
Internal wall insulation prices in Kettering
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
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.
From enquiry to finished wall
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.
Internal wall insulation in Kettering: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
Do you cover Kettering?
Yes — we survey and quote internal wall insulation in Kettering (NN16) and nearby Wellingborough, Corby and Rushden, with a fixed written price before any work starts.