Loft InsulationInstallers

Blown loft insulation in Belfast

We fit blown loft insulation for homes in Belfast and across County Antrim, starting with a free survey and a fixed written quote.

That includes addresses in BT1, BT2 and BT7, in the Belfast City council area.

Guide price £595 to £795 Belfast, County Antrim
Loose-fill insulation blown across a loft floor

Where we work around Belfast

Nearby, we also cover Newtownabbey, Lisburn, Carrickfergus and Antrim.

Postcode districtsBT1, BT2, BT7, BT12
Council areaBelfast City
County or areaCounty Antrim

What is blown loft insulation?

The machine stays outside or on the landing and the hose runs up to the loft. We hold a board or tray at the eaves so the loose fill cannot block the ventilation path. More about blown loft insulation.

  • Eaves trays to keep ventilation open
  • Loose-fill mineral wool to the agreed depth
  • Depth markers left in place

Why book with us in Belfast

No pressure selling

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

Clear contact details

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

We measure before we quote

Existing depth, joist spacing, wiring and the tank are checked, not guessed.

Photos of the finished loft

You see the work done without climbing the ladder.

How much does blown loft insulation cost in Belfast?

£595 to £795Terraced house, average loft. 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 blown loft insulation in Belfast

Do you take on jobs outside Belfast?

Yes. We also work in Newtownabbey and Lisburn and elsewhere in County Antrim.

How soon can you visit a home in Belfast?

We call you back to agree a time that suits you, and confirm the date in writing. Availability changes week to week, so we will give you the earliest slot we have.

Is loft work in Belfast different from anywhere else?

The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.

Is it messy?

The hose runs through the house, so we sheet the route and the landing. The fibre stays in the loft.

Does blown insulation settle?

Mineral wool loose fill settles a little, which is allowed for in the depth we install. The depth markers let you check it later.

Blown loft insulation in other towns

Other loft work in Belfast

Find out what your loft needs

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