Period home loft insulation in Cardiff
Homes in Cardiff get the same service as everywhere else we work in South Glamorgan. For loft insulation for an older house, that means a free survey and a fixed written quote.
Postcode districts we cover here include CF10, CF11 and CF24, in the Cardiff council area.
Where we work around Cardiff
We work in neighbouring Penarth, Trowbridge (South Glamorgan), Barry and Cowbridge too.
| Postcode districts | CF10, CF11, CF24, CF5 |
|---|---|
| Council area | Cardiff |
| County or area | South Glamorgan |
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 Cardiff
No pressure selling
You get everything in writing and decide in your own time.
Honest about grants
If you might qualify for funding, we tell you before we quote.
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 loft insulation for an older house cost in Cardiff?
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 Wales
Wales has its own Approved Document L. Insulation alone is not normally notified, but conversions need building control. How the rules work across the UK.
Questions about loft insulation for an older house in Cardiff
Do you cover all of CF10?
Yes, we cover the CF10 postcode district and the districts around Cardiff.
How do I pay for work in Cardiff?
Payment terms are set out on your quote. We never ask for payment on the doorstep or in cash.
Will I get a written quote for work in Cardiff?
Yes. Every quote is in writing with the work, the price and what is included, so you can compare it properly.
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.
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.
