Internal wall insulation · Greater London
Internal wall insulation in Beckenham
We quote internal wall insulation for homes in Beckenham (BR3) and nearby Catford and Croydon, with guide prices online and a free survey to fix the price. For terraced homes in Beckenham with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in BR3 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Beckenham
Postcode, service and a phone number is all we need.
What you get
- Can be done one room at a time during a renovation
- Loses roughly 50–100mm per insulated wall
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
Homes and walls in Beckenham
Surveys in Beckenham also cover the surrounding BR3 district and towns such as Catford and Croydon. 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.
Where a property in Beckenham is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- BR3
- County or area
- Greater London
- Nation
- England
- Nearby
- Catford, Croydon, Chislehurst, Blackheath
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 Beckenham
| 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
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Internal wall insulation in Beckenham: questions
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
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.
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 Beckenham?
Yes — we survey and quote internal wall insulation in Beckenham (BR3) and nearby Catford, Croydon and Chislehurst, with a fixed written price before any work starts.