Period home loft insulation in County Antrim

Where we work around County Antrim

This takes in the Antrim and Newtownabbey, Mid and East Antrim, Causeway Coast and Glens, Belfast City and Lisburn and Castlereagh council areas.

Postcodes starting BT are all inside our area.

Councils	Antrim and Newtownabbey, Mid and East Antrim, Causeway Coast and Glens, Belfast City and Lisburn and Castlereagh
Postcode areas	BT
Towns listed	9

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.

Chimney breasts and party walls kept clear of combustibles where flues are live
Breathable insulation where it suits the building
Ceiling-safe working from crawl boards

Why book with us in County Antrim

Photos of the finished loft

You see the work done without climbing the ladder.

No pressure selling

You get everything in writing and decide in your own time.

Tank and pipes protected

Every insulation job includes a tank jacket and pipe lagging, so nothing freezes in a colder loft.

Boarding done properly

Storage boards go on loft legs, never straight onto the insulation.

How much does loft insulation for an older house cost in County Antrim?

£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 Northern Ireland

Northern Ireland has its own Building Regulations, with energy guidance in Technical Booklet F1. Upgrading loft insulation may count as a thermal alteration, so check with your council's building control. How the rules work across the UK.

Questions about loft insulation for an older house in County Antrim

How do I book a survey in County Antrim?

Send the form or call us. We call back to agree a time and confirm it in writing.

Can you quote for several properties in County Antrim?

Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.

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.

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.