Loft insulation in Berkshire

Where we work around Berkshire

This takes in the Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead and Wokingham council areas.

Postcode areas: GU, RG and SL.

Councils	Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead and Wokingham
Postcode areas	GU, RG, SL
Towns listed	11

What is loft insulation?

We lay the first layer to the depth of the joists, usually 100 mm, so it fills each bay edge to edge with no gaps. The second layer goes across the joists at right angles, which covers the timber and stops it acting as a cold bridge. More about loft insulation.

Mineral wool to 270 to 300 mm across the whole loft floor
Cables lifted clear of the insulation where possible
Eaves kept clear, with ventilation trays where air could be blocked

Why book with us in Berkshire

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

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.

No pressure selling

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

We measure before we quote

Existing depth, joist spacing, wiring and the tank are checked, not guessed.

How much does loft insulation cost in Berkshire?

£495 to £745Terraced house, average loft, 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). The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.

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

Questions about loft insulation in Berkshire

Are your prices the same across Berkshire?

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.

How do I book a survey in Berkshire?

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

How deep should loft insulation be?

The Energy Saving Trust recommends at least 270 mm of mineral wool, and that is the depth we install as standard. Building regulations also set an energy standard for the roof when a loft is insulated. It differs between England, Wales, Scotland and Northern Ireland, so we confirm the target for your address on the quote.

Does loft insulation need building control approval?

On its own it usually does not, but the work still has to meet the energy standard. The rules differ across England, Wales, Scotland and Northern Ireland, so we confirm the position for your address on the quote.