Loft insulation for flats in Greater London

Where we work around Greater London

We work across the City of London and Westminster council areas.

That covers the BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W and WC postcode areas.

Councils	City of London and Westminster
Postcode areas	BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC
Towns listed	63

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 Greater London

Boarding done properly

Storage boards go on loft legs, never straight onto the insulation.

Fixed written price

The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.

Photos of the finished loft

You see the work done without climbing the ladder.

No pressure selling

You get everything in writing and decide in your own time.

How much does loft insulation for a flat cost in Greater London?

£495 to £845One top-floor flat, from bare joists. Free survey and a fixed written quote before any work.

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).

Work out a guide price for your loft

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 Greater London

How do I book a survey in Greater London?

Send the form or call us. We call back to agree a time and confirm it in writing.

Which council covers my address in Greater London?

Councils in Greater London include City of London and Westminster. Your council matters for building control questions and some funding schemes.

Who pays for loft insulation in a block of flats?

If the loft is common parts, the freeholder usually arranges it and recovers the cost through the service charge, according to the lease.

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.