Period home loft insulation in Cwmbran
We insulate lofts in older houses in Cwmbran and across Gwent, starting with a free survey and a fixed written quote.
Postcode districts we cover here include NP44, inside the Torfaen council area.

Where we work around Cwmbran
Cwmbran sits about 5 miles from Newport (Gwent), measured in a straight line.
Other towns close by include Pontypool, Risca, Newport (Gwent) and Blackwood.
| Postcode districts | NP44 |
|---|---|
| Council area | Torfaen |
| County or area | Gwent |
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
- Ceiling-safe working from crawl boards
- Chimney breasts and party walls kept clear of combustibles where flues are live
Why book with us in Cwmbran
Tank and pipes protected
Every insulation job includes a tank jacket and pipe lagging, so nothing freezes in a colder loft.
Eaves kept clear
Insulation is held back from the eaves so the loft can still ventilate.
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.
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 Cwmbran?
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 Cwmbran
Can a landlord in Cwmbran 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 you charge extra to travel to Cwmbran?
Not normally. Our guide prices include normal travel to Cwmbran. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.
Do you cover all of NP44?
Yes, we cover the NP44 postcode district and the districts around Cwmbran.
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.
