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Double glazing in Kettering

£1,877 to £10,186 installed, and 41% of homes in the council area rated EPC D to G.

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By Home Energy Quotes · Updated September 2026 · Kettering, Northamptonshire

Double Glazing in Kettering

What double glazing costs in Kettering

4–6 windows

£1,877–£3,530

Saves up to £67 a year. Pays back in about 40 years.

Full house (most common)

£4,047–£6,259

Saves up to £117 a year. Pays back in about 44 years.

Large home package

£6,862–£10,186

Saves up to £164 a year. Pays back in about 52 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.

Kettering in numbers

Published statistics for the North Northamptonshire council area, not our estimates.

41% of homes with an EPC in the North Northamptonshire council area are rated D to G, and the median energy score is 70, which is band C. At the 2021 Census, 79.5% of households in the North Northamptonshire council area used mains gas as their only central heating, 2.5% oil only and 5.7% electricity only.

North Northamptonshire council areaFigureSource
Homes with an EPC rated D to G41%ONS, EPCs lodged to March 2025
Median EPC energy score70 (band C)ONS, EPCs lodged to March 2025
Households on mains gas heating only79.5%Census 2021, ONS
Electricity network operatorNational Grid Electricity Distribution (East Midlands)NESO licence area boundaries

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

Grants and funding in Kettering

No general glazing grant

There is no general grant for double glazing in Kettering, 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

North Northamptonshire has £2,003,912 of Warm Homes: Local Grant funding allocated in principle for April 2025 to March 2028. Income and EPC rules apply.

Source: DESNZ, list updated July 2026

Is Kettering a good place for double glazing?

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

Kettering has a population of 63,150, and the area falls within the East Midlands region. We recommend getting at least 3 quotes to compare prices.

Find Installers in Kettering

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 Kettering

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

Questions about double glazing in Kettering

How much does double glazing cost in Kettering?
Double Glazing in Kettering costs between £1,877 and £10,186 installed, depending on system size. A typical mid-range system costs around £5,364 including installation and VAT (modelled estimate).
How energy efficient are homes in Kettering?
41% of homes with an EPC in the North Northamptonshire council area, which covers Kettering, are rated D to G, and the median energy score is 70, which is band C.
Is there a grant for double glazing in Kettering?
There is no general grant for double glazing in Kettering, 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 Kettering?
The estimated payback period in Kettering is typically around 52 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 Kettering?
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 Kettering before installation.
How do I find a good installer in Kettering?
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 Kettering

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

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Kettering on the map

Map of Kettering, Northamptonshire
Kettering, Northamptonshire and the surrounding area.

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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.