Loft insulation for Harrow properties
Harrow is among the towns we cover in Greater London, alongside Wembley, Northolt and Greenford. It is roughly 10 miles north-west of London.
In Harrow homes this is often done on the same visit as a cavity fill, which saves a second trip. Where a Harrow home also has empty cavity walls, we can survey those at the same time.
On compliance, if cavity wall insulation follows in Harrow, filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.
Funding in England
In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils.
Sources: GOV.UK: extending the ECO4 end date, government response; GOV.UK: Warm Homes Plan.
What we check
Existing depth and condition, ventilation at the eaves, water tanks and pipes that need insulating, downlighters that need covers, and storage boarding that needs raising so insulation is not crushed.
What is included in Harrow
- Tank and pipe lagging
- Mineral wool to the recommended depth
- Loft hatch draught-proofing
- Depth and ventilation check
Guide prices for Harrow
| Loft insulation guide prices | Guide price |
|---|---|
| Loft insulation to 270mm, typical house | £395–£895 |
| Loft top-up from 100mm | £295–£595 |
No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.
How it works in Harrow:
Tell us about the property
Postcode, property type and what you would like done.
Free survey
Access, condition, existing insulation and ventilation checked.
Written result and price
What we recommend and a fixed price before any work.
Work and tidy-up
Fitted at an agreed time, with ventilation kept clear.