Loft and cavity wall insulation · London

Loft and cavity wall insulation in Harrow

We install loft and cavity wall insulation in social homes in Harrow, after a survey that checks the wall and loft are suitable.

Social landlords in Harrow can appoint us for loft and cavity wall insulation, from a single home to a programme. The London Borough of Harrow still owns about 4,824 council homes here, alongside housing association stock. We work to the Decent Homes Standard and to your own specification.

Harrow at a glance

Council: London Borough of Harrow
Region: London
Council homes: Council-owned, managed by the council
Approx. council homes: 4,824 (2020)
Housing standard: Decent Homes Standard (England)
Damp and mould timescales: Awaab's Law (since 27 Oct 2025)
Population: 252,338 (2020 estimate)
Regional price factor: 1.22 (VOA 2026)

Council housing status from Housing Revenue Account records (MHCLG and the 2012 HRA list, updated for later transfers) and council publications, checked October 2026. Population: ONS 2020 mid-year estimate.

Who owns the social homes in Harrow?

The London Borough of Harrow still owns council homes in Harrow and manages them directly, funded through its Housing Revenue Account. The latest published figure we found is about 4,824 council homes (2020). Housing associations also own and manage social homes in the area, and we can work for both.

What do we cover in Harrow?

Cavity suitability survey, including borescope inspection
Cavity wall insulation injection
Loft insulation top-ups to current recommended depths
Loft ventilation checks and remedial vents
Pipe and tank insulation

Loft and cavity wall insulation in a social home

How do we deliver it?

No home is filled without a suitability survey. A cavity that should not have been filled becomes a damp complaint, and then a disrepair case.

Which rules apply in Harrow?

Warm Homes: Social Housing Fund Wave 3 (£1.29bn for 2025–2028, plus up to £295m more for 2026/27) requires delivery under PAS 2035/2030, TrustMark-registered installers and, for heat pumps and solar, MCS certification. The fund is closed to new applications.

Decent Homes Standard (England) · More about loft and cavity wall insulation

What does loft and cavity wall insulation cost in Harrow?

Our guide range for cavity wall insulation in Harrow is £1,150–£3,300 per home. That is the UK range of £950–£2,700 (published figure) adjusted by a regional cost factor of 1.22 (VOA Rating Cost Guide 2026: inner London 1.17–1.32, outer London 1.08–1.26); figures are before VAT where the source states it. Every job is priced after survey; specification, access and the condition of the homes will move the figure.

Questions about loft and cavity wall insulation in Harrow

Does the London Borough of Harrow still own council homes?

Can you take on loft and cavity wall insulation in Harrow as a subcontractor?

Yes. Main contractors working for social landlords in Harrow can engage us as a tier-2 subcontractor for loft and cavity wall insulation, working under their systems and their client's specification.

Do you also work near Harrow?

Yes. We take on loft and cavity wall insulation across London, including Brent, Ealing, Watford and Barnet, and in every other UK nation.