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Double glazing in Lisburn

£1,935 to £10,501 installed, and the grants that apply in Lisburn and official data for the council area.

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By Home Energy Quotes · Updated September 2026 · Lisburn, Lisburn and Castlereagh

Double Glazing in Lisburn

What double glazing costs in Lisburn

4–6 windows

£1,935–£3,639

Saves up to £67 a year. Pays back in about 42 years.

Full house (most common)

£4,172–£6,453

Saves up to £117 a year. Pays back in about 45 years.

Large home package

£7,074–£10,501

Saves up to £164 a year. Pays back in about 54 years.

Source: Home Energy Quotes Cost Index, costs modelled June 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.

Lisburn in numbers

Published statistics for the Lisburn and Castlereagh council area, not our estimates.

The median EPC energy score for homes in the Lisburn and Castlereagh council area is 66, which is band D. At the 2021 Census, 41% of households in the Lisburn and Castlereagh council area used mains gas as their only central heating, 44.8% oil only and 1.3% electricity only.

Lisburn and Castlereagh council areaFigureSource
Median EPC energy score66 (band D)Department for Communities, EPCs to March 2023
Households on mains gas heating only41%Census 2021, NISRA
Electricity network operatorNIE Networks (Northern Ireland)NIE Networks

These are published official statistics for the Lisburn and Castlereagh council area, which covers Lisburn, not Home Energy Quotes estimates. Sources checked 6 October 2026.

Grants and funding in Lisburn

Affordable Warmth Scheme

Households in Lisburn with a gross income under £23,000 may qualify for the Affordable Warmth Scheme, which can replace single-glazed windows. Otherwise there is no general grant for double glazing, and windows do not qualify for 0% VAT.

Source: NI Housing Executive — Affordable Warmth

Standard VAT

Double glazing is not on HMRC's list of energy-saving materials, so 20% VAT applies and is inside the prices above.

Source: HMRC — VAT Notice 708/6

Is Lisburn a good place for double glazing?

The area’s housing stock includes a range of properties suited to double glazing installations throughout Lisburn. Combined with Northern Ireland’s energy prices, double glazing installations here may offer good value (individual results will vary).

Lisburn has a population of 51,447, and the area falls within the Northern Ireland region. We recommend getting at least 3 quotes to compare prices.

Find Installers in Lisburn

We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.

Request a free quote →

What to check before hiring an installer in Lisburn

  • Qualifications — check the installer holds relevant qualifications and certifications for double glazing before signing any contract
  • Local references — ask for completed jobs in Lisburn or Lisburn and Castlereagh
  • Reviews — check online reviews before committing
  • Warranty — product and workmanship warranties should be clearly stated in writing
  • 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Double Glazing installer in Lisburn

Questions about double glazing in Lisburn

How much does double glazing cost in Lisburn?
Double Glazing in Lisburn costs between £1,935 and £10,501 installed, depending on system size. A typical mid-range system costs around £5,530 including installation and VAT (modelled estimate).
How energy efficient are homes in Lisburn?
The median EPC energy score for homes in the Lisburn and Castlereagh council area, which covers Lisburn, is 66, which is band D.
Is there a grant for double glazing in Lisburn?
Households in Lisburn with a gross income under £23,000 may qualify for the Affordable Warmth Scheme, which can replace single-glazed windows. Otherwise there is no general grant for double glazing, and windows do not qualify for 0% VAT.
How long is the payback period in Lisburn?
The estimated payback period in Lisburn is typically around 53 years, based on estimated savings of up to £104 a year for a typical home. Actual payback depends on your number of windows, property size and current glazing type.
Do I need planning permission in Lisburn?
Most double glazing installations fall under permitted development rights and do not require planning permission. However, listed buildings, conservation areas and flats may need approval. Always check with your local planning authority in Lisburn before installation.
How do I find a good installer in Lisburn?
We recommend getting at least 3 quotes from qualified installers. Check online reviews and verify that the installer holds relevant qualifications before signing any contract.

Get quotes for your home in Lisburn

Up to three approved installers who cover Lisburn may contact you. Free, no obligation.

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Lisburn on the map

Map of Lisburn, Lisburn and Castlereagh
Lisburn, Lisburn and Castlereagh and the surrounding area.

Double Glazing in nearby towns

Last reviewed: . Costs are modelled estimates from the Home Energy Quotes Cost Index — see how we calculate them. Grant rates are checked against GOV.UK.