Internal wall insulation · Cambridgeshire
Internal wall insulation in Cambridge
If you're planning internal wall insulation in Cambridge, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For terraced homes in Cambridge with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in CB1 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Cambridge
Postcode, service and a phone number is all we need.
What the job covers
- Keeps the outside of the house exactly as it is
- Sockets, radiators, skirting and coving are moved and refitted
- Can be done one room at a time during a renovation
- Needs careful detailing at floor joists, reveals and corners

What we look for in Cambridge
As well as Cambridge itself, we quote in Newmarket, Huntingdon and Haverhill. Cambridge is about 30 miles from Peterborough. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Cambridgeshire 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 property in Cambridge is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- CB1
- County or area
- Cambridgeshire
- Nation
- England
- Nearby
- Newmarket, Huntingdon, Haverhill, St Neots
Permissions in England
Internal insulation rarely needs planning permission, but in England and Wales insulating or replastering more than half of a wall's area involves building control, and listed buildings need consent for internal changes that affect their character.
What are the options for internal insulation?
- Insulated plasterboard — PIR or phenolic foam bonded to plasterboard, fixed to the wall and skimmed. Thinnest option.
- Insulated stud wall — a timber or metal frame filled with insulation, with a vapour control layer and plasterboard. Takes more space but runs services easily.
- Wood fibre and lime — breathable boards finished in lime plaster, for older walls that need to manage moisture.
Internal wall insulation prices in Cambridge
| 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.
How it works
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 Cambridge: questions
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.
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Cambridge?
Yes — we survey and quote internal wall insulation in Cambridge (CB1) and nearby Newmarket, Huntingdon and Haverhill, with a fixed written price before any work starts.