Internal wall insulation · Greater London
Internal wall insulation in Chislehurst
Looking for internal wall insulation in Chislehurst? We survey homes across Chislehurst and the BR7 area, then give you a fixed written price before any work starts. Where a property in Chislehurst is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BR7 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Chislehurst
Postcode, service and a phone number is all we need.
What you get
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Can be done one room at a time during a renovation
- Insulated plasterboard, stud wall or breathable systems
What we look for in Chislehurst
We cover Chislehurst and nearby Eltham, Welling and Bexley. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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 Chislehurst homes room by room so you keep the rest of the house usable.
- Postcode district
- BR7
- County or area
- Greater London
- Nation
- England
- Nearby
- Eltham, Welling, Bexley, Beckenham
Permissions in England
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.
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 Chislehurst
| 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
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.
Internal wall insulation in Chislehurst: questions
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.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Chislehurst?
Yes — we survey and quote internal wall insulation in Chislehurst (BR7) and nearby Eltham, Welling and Bexley, with a fixed written price before any work starts.