Loft InsulationInstallers

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.

Guide price £995 to £1,495 St Austell, Cornwall
The loft of an older house with timber rafters

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 districtsPL25, PL26, PL24
Council areaCornwall
County or areaCornwall

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?

£995 to £1,495Terraced house, average loft, natural fibre; mineral wool, where it suits, costs less. 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).

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.

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.

Period home loft insulation in other towns

Other loft work in St Austell

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.