Loft insulation for Carshalton properties
We cover Carshalton and the SM5 postcode district, including nearby Wallington, Sutton and Mitcham. It is about 10 miles south of London.
In Carshalton homes this is often done on the same visit as a cavity fill, which saves a second trip. We check ventilation as carefully as insulation in Carshalton homes, because both matter for keeping a house dry.
In terms of approvals, if cavity wall insulation follows in Carshalton, 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 Carshalton
- Loft hatch draught-proofing
- Depth and ventilation check
- Tank and pipe lagging
- Mineral wool to the recommended depth
Guide prices for Carshalton
| 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 Carshalton:
Get in touch
Online, by phone or WhatsApp.
Survey visit
We check the space, what is there now and how it is ventilated.
Your quote in writing
A fixed price, with any extras listed separately.
Booked work
Carried out by the installer named on your quote.