Loft InsulationInstallers

Rafter insulation in Devon

We provide rafter insulation across Devon, with a free survey and a fixed written quote.

Towns we cover include Plymouth, Exeter, Paignton, Torquay and Newton Abbot.

Guide price £1,645 to £2,595 Devon
Insulation boards fitted between roof rafters

Where we work around Devon

This takes in the Devon, Plymouth and Torbay council areas.

Postcodes starting EX, PL and TQ are all inside our area.

CouncilsDevon, Plymouth and Torbay
Postcode areasEX, PL, TQ
Towns listed15

What is rafter insulation?

Because the whole roof slope, the gables and the party walls now have to be insulated, this costs much more than insulating the floor and saves less heat for the money. It earns its place when you need a warm loft. More about rafter insulation.

  • Build-up designed for your type of roof underlay
  • Vapour control layer where the design needs one
  • Rigid insulation between the rafters, joints taped

Why book with us in Devon

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

Clear contact details

Your quote says who to call with questions before, during and after the work.

Plain-English advice

We explain what we find in plain English, and say so when nothing needs doing.

Fixed written price

The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.

How much does rafter insulation cost in Devon?

£1,645 to £2,595About 30 m² of roof slope. Free survey and a fixed written quote before any work.

Part of this work can be zero-rated as energy-saving materials until 31 March 2027, and part is standard-rated. If VAT applies, your quote shows which is which.

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 rafter insulation in Devon

Do you cover the whole of Devon?

Yes. We cover every town and village in Devon, including Plymouth, Exeter and Paignton.

Can you quote for several properties in Devon?

Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.

Will it cause condensation?

It can if the build-up is wrong for the roof. Old bitumen felt needs a ventilation gap behind the insulation; a modern breathable membrane may not. We check before we design it.

Can I use the loft as a bedroom after rafter insulation?

Insulation alone does not make a loft habitable. Fire escape, stairs, floor strength and headroom all come into a conversion, which needs building control.

Rafter insulation in other towns

Other loft work in Devon

Find out what your loft needs

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