Internal wall insulation · Surrey
Internal wall insulation in Farnham
We quote internal wall insulation for homes in Farnham (GU9) and nearby Aldershot and Fleet, with guide prices online and a free survey to fix the price. We plan internal insulation in Farnham homes room by room so you keep the rest of the house usable.
- Free survey in GU9 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Farnham
Postcode, service and a phone number is all we need.
What the job covers
- Keeps the outside of the house exactly as it is
- Sockets, radiators, skirting and coving are moved and refitted
- Can be done one room at a time during a renovation
- Insulated plasterboard, stud wall or breathable systems
Before we quote in Farnham
We also cover Aldershot and Fleet, close to Farnham. Farnham is about 13 miles from Woking. 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 Surrey 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 Farnham with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- GU9
- County or area
- Surrey
- Nation
- England
- Nearby
- Aldershot, Fleet, Farnborough, Bordon
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.
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 Farnham
| 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
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 Farnham: 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.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Farnham?
Yes — we survey and quote internal wall insulation in Farnham (GU9) and nearby Aldershot, Fleet and Farnborough, with a fixed written price before any work starts.