Loft InsulationInstallers

Loft ventilation in County Antrim

Homes and buildings across County Antrim can book loft ventilation, starting with a free survey and a fixed written quote.

Towns we cover include Belfast, Lisburn, Newtownabbey, Carrickfergus and Ballymena.

Guide price £245 to £695 County Antrim
Eaves ventilation trays in a loft

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.

CouncilsAntrim and Newtownabbey, Mid and East Antrim, Causeway Coast and Glens, Belfast City and Lisburn and Castlereagh
Postcode areasBT
Towns listed9

What is loft ventilation?

Most pitched roofs are ventilated at the eaves, sometimes with high-level vents as well. Insulation pushed into the eaves can block that path, which is why we fit ventilation trays. More about loft ventilation.

  • Soffit, tile or ridge vents as specified
  • A note of air leaks from the house that need sealing
  • Eaves trays where insulation could block airflow

Why book with us in County Antrim

Eaves kept clear

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

We measure before we quote

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

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.

Clear contact details

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

How much does loft ventilation cost in County Antrim?

£245 to £695Eaves or tile vents for a typical house. Free survey and a fixed written quote before any work.

This work is not an energy-saving material for VAT, so it is standard-rated if VAT applies. Where it is done alongside insulation, the quote shows each part separately.

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 ventilation in County Antrim

Are your prices the same across County Antrim?

Yes. Our guide prices are the same everywhere we work, and they include normal travel. Your fixed price depends on your loft, not your postcode.

Do you cover the whole of County Antrim?

Yes. We cover every town and village in County Antrim, including Belfast, Lisburn and Newtownabbey.

Will extra vents make my house colder?

No. The vents ventilate the loft above the insulation, not the rooms below.

My bathroom fan vents into the loft. Is that a problem?

Yes. It pumps warm, wet air straight into the coldest part of the house. The duct should run to outside through a vent tile, soffit or wall.

Loft ventilation in other towns

Other loft work in County Antrim

Find out what your loft needs

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