Loft InsulationInstallers

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.

Guide price £995 to £1,495 Cwmbran, Gwent
The loft of an older house with timber rafters

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 districtsNP44
Council areaTorfaen
County or areaGwent

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?

£995 to £1,495Terraced house, average loft, natural fibre; mineral wool, where it suits, costs less. Free survey and a fixed written quote before any work.

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).

Work out a guide price for your loft

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.

Period home loft insulation in other towns

Other loft work in Cwmbran

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.