Period home loft insulation in Portsmouth
Looking for loft insulation for an older house in Portsmouth? We cover Portsmouth and the rest of Hampshire, with a free survey and a fixed written quote.
That includes addresses in PO1, PO5 and PO2, inside the Portsmouth council area.
Where we work around Portsmouth
Portsmouth is about 15 miles from Southampton as the crow flies.
Other towns close by include Gosport, Fareham, Hayling Island and Havant.
| Postcode districts | PO1, PO5, PO2, PO4 |
|---|---|
| Council area | Portsmouth |
| County or area | Hampshire |
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.
- Ceiling-safe working from crawl boards
- Breathable insulation where it suits the building
- Chimney breasts and party walls kept clear of combustibles where flues are live
Why book with us in Portsmouth
Honest about grants
If you might qualify for funding, we tell you before we quote.
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.
Clear contact details
Your quote says who to call with questions before, during and after the work.
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 Portsmouth?
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 Portsmouth
Do you cover all of PO1?
Yes, we cover the PO1 postcode district and the districts around Portsmouth.
What do I need to do before you arrive in Portsmouth?
Clear a path to the hatch and, if you can, move stored items away from the area we will be working in. Tell us about anything heavy or fragile.
Can a landlord in Portsmouth book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Can loft insulation damage lath-and-plaster ceilings?
It can if people kneel between joists or if the ceiling is already weak. We work from boards and check the ceiling first.
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.
