Loft InsulationInstallers

Period home loft insulation in Cornwall

We cover Cornwall for loft insulation for an older house. It starts with a free survey and a fixed written quote.

We work in Redruth, Falmouth, St Austell, Truro and Camborne and everywhere in between.

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

Where we work around Cornwall

We work across the Cornwall and Isles of Scilly council areas.

Postcode areas: EX, PL and TR.

CouncilsCornwall and Isles of Scilly
Postcode areasEX, PL, TR
Towns listed13

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.

  • Breathable insulation where it suits the building
  • Chimney breasts and party walls kept clear of combustibles where flues are live
  • Ceiling-safe working from crawl boards

Why book with us in Cornwall

No pressure selling

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

Tank and pipes protected

Every insulation job includes a tank jacket and pipe lagging, so nothing freezes in a colder loft.

Boarding done properly

Storage boards go on loft legs, never straight onto the insulation.

Photos of the finished loft

You see the work done without climbing the ladder.

How much does loft insulation for an older house cost in Cornwall?

£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 Cornwall

How do I book a survey in Cornwall?

Send the form or call us. We call back to agree a time and confirm it in writing.

Are your prices the same across Cornwall?

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.

Can loft insulation damage lath-and-plaster ceilings?

It can if people kneel between joists or if the ceiling is already weak. We work from boards and check the ceiling first.

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.

Period home loft insulation in other towns

Other loft work in Cornwall

Find out what your loft needs

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