Loft InsulationInstallers

Rafter insulation in Bristol

Homes and buildings across Bristol can book rafter insulation, starting with a free survey and a fixed written quote.

We cover every postcode district in Bristol.

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

Where we work around Bristol

Council areas covered: Bristol City.

That covers the BS postcode areas.

CouncilsBristol City
Postcode areasBS
Towns listedWhole city

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. We check the roof underlay first: a breathable membrane and a felt with no ventilation gap need different build-ups to avoid condensation. More about rafter insulation.

  • Rigid insulation between the rafters, joints taped
  • Insulated plasterboard lining where specified
  • Vapour control layer where the design needs one

Why book with us in Bristol

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.

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.

Plain-English advice

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

How much does rafter insulation cost in Bristol?

£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 Bristol

Can you quote for several properties in Bristol?

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

Are your prices the same across Bristol?

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.

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.

Is insulating between the rafters better than the loft floor?

Not for saving energy alone. Insulating the floor heats less space and costs far less. Rafter insulation is the right answer when the loft itself needs to be warm.

Other loft work in Bristol

Find out what your loft needs

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