Loft InsulationInstallers

Loft insulation top-up in Devon

For a loft insulation top-up anywhere in Devon, you get a free survey and a fixed written quote.

That includes Plymouth, Exeter, Paignton, Torquay and Newton Abbot, and the villages around them.

Guide price £395 to £545 Devon
A loft insulation top-up layer laid across older insulation

Where we work around Devon

We work across the Devon, Plymouth and Torbay council areas.

Postcode areas: EX, PL and TQ.

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

What is a loft insulation top-up?

Before we quote we measure the existing layer in several places and check its condition. If it is dry, even and not contaminated, we keep it and lay the top-up across it at right angles. More about a loft insulation top-up.

  • Eaves ventilation kept clear
  • Tank jacket and pipe lagging in the loft
  • Gaps in the existing layer filled

Why book with us in Devon

Downlights made safe

Fire-rated covers or a clear zone around recessed lights.

Clear contact details

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

We measure before we quote

Existing depth, joist spacing, wiring and the tank are checked, not guessed.

Tidy work

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

How much does a loft insulation top-up cost in Devon?

£395 to £545Terraced house, average loft, topping up from about 100 mm. 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). The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.

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.

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

Questions about a loft insulation top-up in Devon

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.

Which council covers my address in Devon?

Councils in Devon include Devon, Plymouth and Torbay. Your council matters for building control questions and some funding schemes.

Which way should the top-up layer run?

Across the joists, at right angles to the first layer. That covers the tops of the joists, which otherwise let heat escape along the timber.

Can new insulation go on top of old insulation?

Yes, if the old layer is dry, clean and reasonably even. If it is damp, contaminated or badly compressed we recommend removing it first.

Loft insulation top-up 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.