Loft insulation in St Austell
We cover St Austell and the surrounding area for every kind of loft insulation job.
Jobs in PL25, PL26 and PL24 are all within our normal area, inside the Cornwall council area.
Loft services in St Austell
Insulate the loft
- Loft insulation in St Austell From £495
- Loft insulation top-up in St Austell From £395
- Blown loft insulation in St Austell From £595
- Natural loft insulation in St Austell From £995
- Rafter insulation in St Austell From £1,645
- Room-in-roof insulation in St Austell From £3,995
Boarding, hatches and ladders
- Loft boarding in St Austell From £695
- Insulated loft hatches in St Austell From £245
- Loft ladder fitting in St Austell From £295
Remove and replace
Ventilation and frost protection
- Loft ventilation in St Austell From £245
- Loft condensation investigation in St Austell From £145
- Pipe and tank lagging in St Austell From £95
Surveys and funding checks
- Loft insulation survey in St Austell From £95
- Thermal imaging survey in St Austell From £165
- Loft insulation grants check in St Austell No charge
Homes and buildings
Where we work around St Austell
St Austell sits about 13 miles from Truro, measured in a straight line.
We also cover Bodmin, Truro and Newquay.
| Postcode districts | PL25, PL26, PL24 |
|---|---|
| Council area | Cornwall |
| County or area | Cornwall |
Loft insulation in other towns
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
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 St Austell
Can a landlord in St Austell book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Will I get a written quote for work in St Austell?
Yes. Every quote is in writing with the work, the price and what is included, so you can compare it properly.
Do you cover all of PL25?
Yes, we cover the PL25 postcode district and the districts around St Austell.
What do I need to do before you arrive in St Austell?
Clear a path to the hatch and, if you can, move stored items away from the area we will be working in. Tell us about anything heavy or fragile.
