Action Surrey: Surrey's Low Carbon Community

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Windows

Improving the energy efficiency of your windows, making your property quieter, warmer and potential saves you £120 a year*. 

Energy efficient window glazing

Double-glazed windows have two sheets of glass with a gap in between, creating an insulating barrier to keep heat in. Triple-glazed windows have three sheets of glass but aren’t always better than double-glazed windows. To choose the most energy-efficient window, select the one with the best BFRC rating.

Energy-efficient windows come in a range of frame materials and styles. Performance criteria vary according to the following:

  • How well they stop heat from passing through the window.
  • How much sunlight travels through the glass.
  • How little air can leak in or out around the window.

How much could you save?

England, Scotland and Wales

Energy ratingDetachedSemi-detachedMid terraceBungalowFlat
A++ rated £115 - 120 £85 £60 - 65 £60 £35 - 40
A+ rated £110  £75 - 80 £55 - 60 £55 - 60 £35
A rated £105 - 110 £75 £55 £55 £35
B rated £100 - 105 £70 - 75 £50 - 55 £50 - 55 £30 - 35
C rated £100 £70 £50 - 55 £50 - 55 £30

For more information on improving your windows you can refer to the below guide from CSE:

Energy efficient glazing: Keep the heat in and the noise out

For more information contact Action Surrey on 0800 783 2503 or email info@actionsurrey.org

Alternatively, fill out our enquiry form online to obtain a survey and no-obligation quote.

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*All figures are taken from the Energy Saving Trust April 2019 figures.