Internal wall insulation · Greater London
Internal wall insulation in Chiswick
Need internal wall insulation in Chiswick? Tell us about the property and we'll arrange a free survey and a written quote. For terraced homes in Chiswick with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in W4 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Chiswick
Postcode, service and a phone number is all we need.
What's included
- Needs careful detailing at floor joists, reveals and corners
- Loses roughly 50–100mm per insulated wall
- Keeps the outside of the house exactly as it is
- Insulated plasterboard, stud wall or breathable systems
Homes and walls in Chiswick
We cover Chiswick and nearby Acton, Barnes and Shepherds Bush. 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 Chiswick is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- W4
- County or area
- Greater London
- Nation
- England
- Nearby
- Acton, Barnes, Shepherds Bush, Fulham
England: planning and regulations
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.
Do I need Building Regulations approval?
Yes, in England and Wales once you insulate or replaster more than half of a wall's area (or more than a quarter of the building's whole envelope), it's treated as renovating a thermal element. The wall should reach about 0.30 W/m²K where practical, and building control needs to be involved.
Internal wall insulation prices in Chiswick
| 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 Chiswick: 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 Chiswick?
Yes — we survey and quote internal wall insulation in Chiswick (W4) and nearby Acton, Barnes and Shepherds Bush, with a fixed written price before any work starts.