Internal wall insulation · Kent
Internal wall insulation in Swanley
Internal wall insulation in Swanley: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Where a property in Swanley is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BR8 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Swanley
Postcode, service and a phone number is all we need.
Part of every quote
- Insulated plasterboard, stud wall or breathable systems
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Sockets, radiators, skirting and coving are moved and refitted
What we look for in Swanley
We also cover Bexley and Dartford, close to Swanley. Swanley sits around 17 miles from Maidstone. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Much of Kent 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.
For terraced homes in Swanley with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- BR8
- County or area
- Kent
- Nation
- England
- Nearby
- Bexley, Dartford, Chislehurst, Welling
Planning and building control 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 Swanley
| 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 Swanley: 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.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Do you cover Swanley?
Yes — we survey and quote internal wall insulation in Swanley (BR8) and nearby Bexley, Dartford and Chislehurst, with a fixed written price before any work starts.