Loft insulation top-up in County Antrim

Where we work around County Antrim

We work across 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 a loft insulation top-up?

Before we quote we measure the existing layer in several places and check its condition. If it is wet, dirty, matted or full of droppings, laying fresh wool on top just buries the problem, so we say so and price removal instead. More about a loft insulation top-up.

Tank jacket and pipe lagging in the loft
Eaves ventilation kept clear
Depth check and photos before and after

Why book with us in County Antrim

Honest about grants

If you might qualify for funding, we tell you before we quote.

Clear contact details

Your quote says who to call with questions before, during and after the work.

Downlights made safe

Fire-rated covers or a clear zone around recessed lights.

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

How much does a loft insulation top-up cost in County Antrim?

£395 to £545Terraced house, average loft, topping up from about 100 mm. 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). The Energy Saving Trust puts a typical professionally installed loft in Northern Ireland at about £1,100 from bare joists, or £700 to top up from 120 mm.

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.

Funding in Northern Ireland

The Affordable Warmth Scheme, delivered by the Northern Ireland Housing Executive, helps owner-occupiers and private tenants with a household income under £23,000. Apply through the Northern Ireland Energy Advice Service and check it is open.
The Northern Ireland Sustainable Energy Programme (NISEP) funds energy efficiency measures for eligible households.
ECO and the Warm Homes Plan do not apply in Northern Ireland.

Housing Executive: Affordable Warmth Scheme

Questions about a loft insulation top-up in County Antrim

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.

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.

Which way should the top-up layer run?

Across the joists, at right angles to the first layer. That covers the tops of the joists, which otherwise let heat escape along the timber.

Is it worth topping up 100 mm of loft insulation?

Often, if the existing layer is in good condition and you also want a warmer house or a better EPC. On bill savings alone, a top-up from about 100 mm takes decades to pay back, so the case is strongest when it is done alongside other loft work.