Internal wall insulation · Greater London
Internal wall insulation in Hounslow
Homeowners and landlords in Hounslow can get a free survey and a fixed written quote for internal wall insulation, covering TW3 and the surrounding area. We plan internal insulation in Hounslow homes room by room so you keep the rest of the house usable.
- Free survey in TW3 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Hounslow
Postcode, service and a phone number is all we need.
What the job covers
- Insulated plasterboard, stud wall or breathable systems
- 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
Hounslow: walls, weather and approvals
We also cover Isleworth and Heston, close to Hounslow. 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.
For terraced homes in Hounslow with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- TW3
- County or area
- Greater London
- Nation
- England
- Nearby
- Isleworth, Heston, Richmond, Hanworth
Planning and building control in England
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.
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 Hounslow
| 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 Hounslow: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
Do you cover Hounslow?
Yes — we survey and quote internal wall insulation in Hounslow (TW3) and nearby Isleworth, Heston and Richmond, with a fixed written price before any work starts.