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Double glazing in Cambridge

£2,160 to £12,090 installed, and 34% of homes in the council area rated EPC D to G.

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By Home Energy Quotes · Updated September 2026 · Cambridge, Cambridgeshire

Double Glazing in Cambridge

What double glazing costs in Cambridge

4–6 windows

£2,160–£4,060

Saves up to £67 a year. Pays back in about 46 years.

Full house (most common)

£4,350–£7,580

Saves up to £114 a year. Pays back in about 52 years.

Large home package

£7,650–£12,090

Saves up to £164 a year. Pays back in about 60 years.

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

Cambridge in numbers

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

34% of homes with an EPC in the Cambridge council area are rated D to G, and the median energy score is 73, which is band C. At the 2021 Census, 75.1% of households in the Cambridge council area used mains gas as their only central heating, 0.2% oil only and 11.6% electricity only.

Cambridge council areaFigureSource
Homes with an EPC rated D to G34%ONS, EPCs lodged to March 2025
Median EPC energy score73 (band C)ONS, EPCs lodged to March 2025
Households on mains gas heating only75.1%Census 2021, ONS
Electricity network operatorUK Power Networks (East England)NESO licence area boundaries

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

Grants and funding in Cambridge

No general glazing grant

There is no general grant for double glazing in Cambridge, 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

Warm Homes: Local Grant

Cambridge leads a Warm Homes: Local Grant consortium allocated £8,805,153 in principle for April 2025 to March 2028. Income and EPC rules apply.

Source: DESNZ, list updated July 2026

Is Cambridge a good place for double glazing?

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

Cambridge has a population of 123,000, and the area falls within the East England region. We recommend getting at least 3 quotes to compare prices.

Cambridge

Find Installers in Cambridge

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.

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What to check before hiring an installer in Cambridge

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

Questions about double glazing in Cambridge

How much does double glazing cost in Cambridge?
Double Glazing in Cambridge costs between £2,160 and £12,090 installed, depending on system size. A typical mid-range system costs around £6,380 including installation and VAT (modelled estimate).
How energy efficient are homes in Cambridge?
34% of homes with an EPC in the Cambridge council area, which covers Cambridge, are rated D to G, and the median energy score is 73, which is band C.
Is there a grant for double glazing in Cambridge?
There is no general grant for double glazing in Cambridge, 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 Cambridge?
The estimated payback period in Cambridge is typically around 61 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 Cambridge?
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 Cambridge before installation.
How do I find a good installer in Cambridge?
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 Cambridge

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

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Cambridge on the map

Map of Cambridge, Cambridgeshire
Cambridge, Cambridgeshire 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.