Loft insulation in County Durham

Where we work around County Durham

We work across the County Durham, Darlington, Hartlepool and Stockton-on-Tees council areas.

That covers the DH, DL, SR and TS postcode areas.

Councils	County Durham, Darlington, Hartlepool and Stockton-on-Tees
Postcode areas	DH, DL, SR, TS
Towns listed	15

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
Tank jacket and pipe lagging in the loft
Waste packaging removed

Why book with us in County Durham

Eaves kept clear

Insulation is held back from the eaves so the loft can still ventilate.

Clear contact details

Your quote says who to call with questions before, during and after the work.

Tidy work

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

No pressure selling

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

How much does loft insulation cost in County Durham?

£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 County Durham

Are your prices the same across County Durham?

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.

Do you cover the whole of County Durham?

Yes. We cover every town and village in County Durham, including Darlington, Hartlepool and Stockton-on-Tees.

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.

How long does it take to insulate a loft?

Most lofts in houses take a single day. A large bungalow loft, a loft that needs clearing first or one with awkward access can run into a second day.