Internal wall insulation · Greater London
Internal wall insulation in Southall
If you're planning internal wall insulation in Southall, start with a free survey: we measure, check the walls and confirm planning and building control for your address. We plan internal insulation in Southall homes room by room so you keep the rest of the house usable.
- Free survey in UB1 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Southall
Postcode, service and a phone number is all we need.
What's included
- Insulated plasterboard, stud wall or breathable systems
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
- Keeps the outside of the house exactly as it is
Southall: walls, weather and approvals
Surveys in Southall also cover the surrounding UB1 district and towns such as Greenford and Heston. 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 Southall with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- UB1
- County or area
- Greater London
- Nation
- England
- Nearby
- Greenford, Heston, Hayes, Isleworth
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 risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Southall
| 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
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 Southall: questions
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.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Southall?
Yes — we survey and quote internal wall insulation in Southall (UB1) and nearby Greenford, Heston and Hayes, with a fixed written price before any work starts.