Loft insulation in Dorset

Loft services in Dorset

Insulate the loft

• Loft insulation in Dorset From £495
• Loft insulation top-up in Dorset From £395
• Blown loft insulation in Dorset From £595
• Natural loft insulation in Dorset From £995
• Rafter insulation in Dorset From £1,645
• Room-in-roof insulation in Dorset From £3,995

Boarding, hatches and ladders

• Loft boarding in Dorset From £695
• Insulated loft hatches in Dorset From £245
• Loft ladder fitting in Dorset From £295

Remove and replace

• Loft insulation removal in Dorset From £445
• Spray foam removal in Dorset From £1,495

Ventilation and frost protection

• Loft ventilation in Dorset From £245
• Loft condensation investigation in Dorset From £145
• Pipe and tank lagging in Dorset From £95

Surveys and funding checks

• Loft insulation survey in Dorset From £95
• Thermal imaging survey in Dorset From £165
• Loft insulation grants check in Dorset No charge

Homes and buildings

• Period home loft insulation in Dorset From £995
• Loft insulation for flats in Dorset From £495
• Landlord loft insulation in Dorset From £495
• Commercial roof void insulation in Dorset From £9 per m²
• New-build loft insulation in Dorset From £5 per m²

Where we work around Dorset

This takes in the Dorset and Bournemouth, Christchurch and Poole council areas.

Postcodes starting BH, DT and SP are all inside our area.

Loft insulation in other towns

• Bournemouth
• Bridport
• Christchurch
• Dorchester
• Ferndown
• Poole
• Shaftesbury
• Weymouth
• Wimborne Minster

Building regulations in England

Insulating a loft is treated as renovating a thermal element when more than half of the ceiling area is insulated. Approved Document L sets a target U-value of 0.16 W/m²K, which is around 250 to 300 mm of mineral wool. Loft insulation on its own usually does not need a building notice, but it still has to meet that standard. Rafter insulation that forms part of a loft conversion is notifiable building work.

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

Rented homes

Privately rented homes in England must have an EPC rating of at least E, and the government has confirmed that all tenancies in scope must reach band C by 1 October 2030, measured with updated EPC metrics.

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

Questions about loft insulation in Dorset