Loft insulation for flats in Hampshire
We provide loft insulation for a flat across Hampshire, with a free survey and a fixed written quote.
Towns we cover include Southampton, Portsmouth, Basingstoke, Gosport and Waterlooville.

Where we work around Hampshire
This takes in the Hampshire, Portsmouth and Southampton council areas.
Postcodes starting BH, GU, PO, RG, SO and SP are all inside our area.
| Councils | Hampshire, Portsmouth and Southampton |
|---|---|
| Postcode areas | BH, GU, PO, RG, SO, SP |
| Towns listed | 23 |
What is different about insulating a flat's loft?
In most leasehold flats the loft belongs to the freeholder, so the managing agent or freeholder must agree to the work. Shared lofts usually have fire separation between flats that must not be disturbed. More about loft insulation for a flat.
- Photos and a completion note for the managing agent or factor
- Fire compartment walls left intact
- Single-flat or whole-block quotes
Why book with us in Hampshire
Honest about grants
If you might qualify for funding, we tell you before we quote.
We measure before we quote
Existing depth, joist spacing, wiring and the tank are checked, not guessed.
Downlights made safe
Fire-rated covers or a clear zone around recessed lights.
Tank and pipes protected
Every insulation job includes a tank jacket and pipe lagging, so nothing freezes in a colder loft.
How much does loft insulation for a flat cost in Hampshire?
Installing insulation in a home is zero-rated for VAT until 31 March 2027 and 5% after that, under HMRC's rules for energy-saving materials (notice 708/6).
Building regulations in England
In England, a loft insulated across more than half its area should reach a U-value of 0.16 W/m²K. Insulation alone is not usually notified to building control. How the rules work across the UK.
Funding in England
- ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households, with no supplier scheme to follow it.
- The Great British Insulation Scheme closed on 31 March 2026.
- The Warm Homes Plan, announced in January 2026, funds upgrades for low-income households, including through councils under Warm Homes: Local Grant.
- Check what is open for your address on GOV.UK before agreeing to any funded offer.
GOV.UK: find ways to save energy in your home
Rented homes
Privately rented homes in England must have an EPC rating of at least E, and the government has confirmed that all tenancies in scope must reach band C by 1 October 2030, measured with updated EPC metrics.
Questions about loft insulation for a flat in Hampshire
Which council covers my address in Hampshire?
Councils in Hampshire include Hampshire, Portsmouth and Southampton. Your council matters for building control questions and some funding schemes.
Are your prices the same across Hampshire?
Yes. Our guide prices are the same everywhere we work, and they include normal travel. Your fixed price depends on your loft, not your postcode.
Can I insulate the loft above my flat?
Usually yes, with the freeholder's consent. The lease will say who owns and maintains the roof space.
Is there VAT on loft insulation in flats?
Flats are residential, so installing insulation is zero-rated until 31 March 2027.
