Period home loft insulation in Portishead
Looking for loft insulation for an older house in Portishead? We cover Portishead and the rest of Somerset, with a free survey and a fixed written quote.
We cover postcodes including BS20, inside the North Somerset council area.

Where we work around Portishead
As the crow flies, Portishead is roughly 19 miles from Bath.
We also cover Nailsea, Clevedon, Keynsham and Weston-super-Mare.
| Postcode districts | BS20 |
|---|---|
| Council area | North Somerset |
| County or area | Somerset |
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 Portishead
Photos of the finished loft
You see the work done without climbing the ladder.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
Honest about grants
If you might qualify for funding, we tell you before we quote.
Eaves kept clear
Insulation is held back from the eaves so the loft can still ventilate.
How much does loft insulation for an older house cost in Portishead?
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).
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 Portishead
Do you take on jobs outside Portishead?
Yes. We also work in Nailsea and Clevedon and elsewhere in Somerset.
Is loft work in Portishead different from anywhere else?
The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.
Can a landlord in Portishead book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Do I need permission to insulate a listed building's loft?
Possibly. Listed building consent is needed for works that affect the building's character. Ask your council's conservation officer.
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.
