Internal wall insulation · Norfolk
Internal wall insulation in King's Lynn
Quotes for internal wall insulation in King's Lynn list the system, the detailing and the VAT position in writing, so you know exactly what's included. Where a property in King's Lynn is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in PE30 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in King's Lynn
Postcode, service and a phone number is all we need.
What the job covers
- Needs careful detailing at floor joists, reveals and corners
- Sockets, radiators, skirting and coving are moved and refitted
- Insulated plasterboard, stud wall or breathable systems
- Loses roughly 50–100mm per insulated wall

Local considerations in King's Lynn
As well as King's Lynn itself, we quote in Wisbech, March and Spalding. It's roughly 39 miles from King's Lynn to Norwich, the largest town in Norfolk. 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 Norfolk 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 King's Lynn homes room by room so you keep the rest of the house usable.
- Postcode district
- PE30
- County or area
- Norfolk
- Nation
- England
- Nearby
- Wisbech, March, Spalding, Dereham
England: planning and regulations
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 King's Lynn
| 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.
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.
Internal wall insulation in King's Lynn: 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.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
Do you cover King's Lynn?
Yes — we survey and quote internal wall insulation in King's Lynn (PE30) and nearby Wisbech, March and Spalding, with a fixed written price before any work starts.