Period home loft insulation in St Austell
Looking for loft insulation for an older house in St Austell? We cover St Austell and the rest of Cornwall, with a free survey and a fixed written quote.
That includes addresses in PL25, PL26 and PL24, which fall under Cornwall council.

Where we work around St Austell
As the crow flies, St Austell is roughly 13 miles from Truro.
We also cover Bodmin, Truro and Newquay.
| Postcode districts | PL25, PL26, PL24 |
|---|---|
| Council area | Cornwall |
| County or area | Cornwall |
What is different about insulating an older home's loft?
We work from crawl boards spanning several joists so the ceilings are not loaded, check for loose plaster keys before anything is laid, and usually recommend vapour-open insulation such as sheep's wool or wood fibre. Unfelted slate roofs are naturally well ventilated, but they let in wind-driven rain and snow, which the insulation has to cope with. More about loft insulation for an older house.
- Chimney breasts and party walls kept clear of combustibles where flues are live
- Breathable insulation where it suits the building
- Ceiling-safe working from crawl boards
Why book with us in St Austell
Boarding done properly
Storage boards go on loft legs, never straight onto the insulation.
Downlights made safe
Fire-rated covers or a clear zone around recessed lights.
We measure before we quote
Existing depth, joist spacing, wiring and the tank are checked, not guessed.
Plain-English advice
We explain what we find in plain English, and say so when nothing needs doing.
How much does loft insulation for an older house cost in St Austell?
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).
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.
Questions about loft insulation for an older house in St Austell
Is loft work in St Austell different from anywhere else?
The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.
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.
Do you cover all of PL25?
Yes, we cover the PL25 postcode district and the districts around St Austell.
What is the best loft insulation for an old house?
Usually a vapour-open material such as sheep's wool or wood fibre, laid so moisture can still move. Mineral wool is also vapour-open and works in many period lofts at lower cost.
Do I need permission to insulate a listed building's loft?
Possibly. Listed building consent is needed for works that affect the building's character. Ask your council's conservation officer.
