Internal wall insulation · Hampshire
Internal wall insulation in Fleet
If you're planning internal wall insulation in Fleet, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For terraced homes in Fleet with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in GU51 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Fleet
Postcode, service and a phone number is all we need.
What the job covers
- Can be done one room at a time during a renovation
- Loses roughly 50–100mm per insulated wall
- Keeps the outside of the house exactly as it is
- Sockets, radiators, skirting and coving are moved and refitted

Fleet: walls, weather and approvals
We also cover Farnborough and Aldershot, close to Fleet. Fleet sits around 36 miles from Southampton. 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.
Exposure to wind-driven rain varies across Hampshire: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
Where a property in Fleet is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- GU51
- County or area
- Hampshire
- Nation
- England
- Nearby
- Farnborough, Aldershot, Yateley, Sandhurst
England: planning and regulations
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 Fleet
| 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 Fleet: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
Do you cover Fleet?
Yes — we survey and quote internal wall insulation in Fleet (GU51) and nearby Farnborough, Aldershot and Yateley, with a fixed written price before any work starts.