Loft InsulationInstallers

Loft insulation in Lisburn

If you need loft insulation in Lisburn, we can help, and it starts with a free survey and a fixed written quote.

That includes addresses in BT27, BT28 and BT17, which fall under Lisburn and Castlereagh council.

Guide price £495 to £745 Lisburn, County Antrim
Mineral wool loft insulation laid across the joists

Where we work around Lisburn

Lisburn is about 7 miles from Belfast as the crow flies.

Other towns close by include Belfast and Newtownabbey.

Postcode districtsBT27, BT28, BT17, BT10
Council areaLisburn and Castlereagh
County or areaCounty Antrim

What is loft insulation?

We lay the first layer to the depth of the joists, usually 100 mm, so it fills each bay edge to edge with no gaps. The finished depth sits at 270 mm or more, the depth the Energy Saving Trust recommends. More about loft insulation.

  • Area under the cold water tank left clear so it cannot freeze
  • Tank jacket and pipe lagging in the loft
  • Mineral wool to 270 to 300 mm across the whole loft floor

Why book with us in Lisburn

Tank and pipes protected

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

Clear contact details

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

Boarding done properly

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

Eaves kept clear

Insulation is held back from the eaves so the loft can still ventilate.

How much does loft insulation cost in Lisburn?

£495 to £745Terraced house, average loft, from bare joists. 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 in Lisburn

Can you visit Lisburn outside working hours?

Ask about early, late or weekend appointments when you get in touch, and we will tell you honestly what we can offer.

Do you cover all of BT27?

Yes, we cover the BT27 postcode district and the districts around Lisburn.

Is loft work in Lisburn 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.

How long does it take to insulate a loft?

Most lofts in houses take a single day. A large bungalow loft, a loft that needs clearing first or one with awkward access can run into a second day.

Does loft insulation need building control approval?

On its own it usually does not, but the work still has to meet the energy standard. The rules differ across England, Wales, Scotland and Northern Ireland, so we confirm the position for your address on the quote.

Loft insulation in other towns

Other loft work in Lisburn

Find out what your loft needs

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