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.

Where we work around Bristol
Council areas covered: Bristol City.
That covers the BS postcode areas.
| Councils | Bristol City |
|---|---|
| Postcode areas | BS |
| Towns listed | Whole 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?
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.
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.
