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County Down · Northern Ireland

Draught-proofing in County Down

Draught-proofing seals the gaps that let warm air out and cold air in, around doors, windows, letterboxes, loft hatches and skirting boards, while leaving planned ventilation alone. Our County Down coverage includes Bangor, Newtownards, Newry and the towns around them.

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Fitting a rubber draught-proofing strip to a front door frame

Free survey in County Down

Tell us about the property and we will arrange a free survey and a fixed price.

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Draught-proofing across County Down

We cover 5 towns in County Down: Bangor, Newtownards, Newry, Downpatrick and Banbridge.

In County Down homes this is often done on the same visit as a cavity fill, which saves a second trip. Where a County Down home also has empty cavity walls, we can survey those at the same time.

Building control in Northern Ireland

In Northern Ireland, inserting insulation into an existing cavity wall needs a building control application to your council before the work. We make sure the application route is agreed and confirmed in writing before any drilling starts.

Funding in Northern Ireland

  • The Affordable Warmth Scheme, run with the NI Housing Executive, helps owner-occupiers and private tenants with a total gross household income under £23,000; cavity wall insulation is a priority measure where suitable.
  • The NI Sustainable Energy Programme funds energy efficiency schemes through participating providers.
  • ECO4 does not apply in Northern Ireland.

Sources: Building Control NI: frequently asked questions; Belfast City Council: what are the building regulations; NI Housing Executive: Affordable Warmth Scheme; Utility Regulator: NI Sustainable Energy Programme.

Ventilation still matters

Trickle vents, air bricks and extractor fans are there for a reason. We seal accidental gaps, not the ventilation your home needs to keep condensation down.

What is included

  • Door and window seals
  • Letterbox and keyhole covers
  • Loft hatch seals
  • Skirting and floor gap sealing

Draught-proofing prices in County Down

Draught-proofing guide prices
Draught-proofing guide pricesGuide price
Whole-house draught-proofing£195–£495
Doors and loft hatch only£145–£295

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

The steps for draught-proofing in County Down:

  1. Tell us about the property

    Postcode, property type and what you would like done.

  2. Free survey

    Access, condition, existing insulation and ventilation checked.

  3. Written result and price

    What we recommend and a fixed price before any work.

  4. Work and tidy-up

    Fitted at an agreed time, with ventilation kept clear.

Last reviewed 19 October 2026.

Draught-proofing in County Down: questions

Do you cover all of County Down?

Yes. We cover 5 towns across County Down, including Bangor, Newtownards, Newry and Downpatrick, and the villages around them. Island and remote addresses are surveyed by arrangement.

Do you work on rented homes in County Down?

Yes. Landlords and agents in County Down can book batch visits, and work is arranged around tenants.

Is there VAT on draught-proofing in County Down?

Installing insulation in a home is currently zero-rated for VAT until 31 March 2027, then 5%. Commercial buildings are standard-rated.

Are there grants for insulation in County Down?

In Northern Ireland, the Affordable Warmth Scheme helps eligible households with a gross income under £23,000. We cannot promise funding, but we will point you to the right official route.

Draught-proofing in nearby areas

Book a free survey in County Down

Free survey with an install quote. Written result. Fixed price before any work.

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