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Double glazing in Swindon

£2,032 to £11,027 installed, and 39% of homes in the council area rated EPC D to G.

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By Home Energy Quotes · Updated September 2026 · Swindon, Wiltshire

Double Glazing in Swindon

What double glazing costs in Swindon

4–6 windows

£2,032–£3,822

Saves up to £67 a year. Pays back in about 44 years.

Full house (most common)

£4,381–£6,776

Saves up to £117 a year. Pays back in about 48 years.

Large home package

£7,429–£11,027

Saves up to £164 a year. Pays back in about 56 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.

Swindon in numbers

Published statistics for the Swindon council area, not our estimates.

39% of homes with an EPC in the Swindon council area are rated D to G, and the median energy score is 71, which is band C. At the 2021 Census, 78.6% of households in the Swindon council area used mains gas as their only central heating, 0.6% oil only and 9.4% electricity only.

Swindon council areaFigureSource
Homes with an EPC rated D to G39%ONS, EPCs lodged to March 2025
Median EPC energy score71 (band C)ONS, EPCs lodged to March 2025
Households on mains gas heating only78.6%Census 2021, ONS
Electricity network operatorSSEN Distribution (Southern England)NESO licence area boundaries

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

Grants and funding in Swindon

No general glazing grant

There is no general grant for double glazing in Swindon, and windows do not qualify for 0% VAT. Councils delivering the Warm Homes: Local Grant can include double glazing in upgrades for eligible lower-income homes with an EPC rating of D to G.

Source: GOV.UK — Warm Homes: Local Grant

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 Swindon a good place for double glazing?

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

Swindon has a population of 183,680, and the area falls within the South West region. We recommend getting at least 3 quotes to compare prices.

Find Installers in Swindon

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 Swindon

  • Qualifications — check the installer holds relevant qualifications and certifications for double glazing before signing any contract
  • Local references — ask for completed jobs in Swindon or Wiltshire
  • 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 Swindon

Questions about double glazing in Swindon

How much does double glazing cost in Swindon?
Double Glazing in Swindon costs between £2,032 and £11,027 installed, depending on system size. A typical mid-range system costs around £5,807 including installation and VAT (modelled estimate).
How energy efficient are homes in Swindon?
39% of homes with an EPC in the Swindon council area, which covers Swindon, are rated D to G, and the median energy score is 71, which is band C.
Is there a grant for double glazing in Swindon?
There is no general grant for double glazing in Swindon, and windows do not qualify for 0% VAT. Councils delivering the Warm Homes: Local Grant can include double glazing in upgrades for eligible lower-income homes with an EPC rating of D to G.
How long is the payback period in Swindon?
The estimated payback period in Swindon is typically around 56 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 Swindon?
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 Swindon before installation.
How do I find a good installer in Swindon?
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 Swindon

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

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Swindon on the map

Map of Swindon, Wiltshire
Swindon, Wiltshire 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.