Action Surrey: Surrey's Low Carbon Community

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Windows

Improving the energy efficiency of your windows can make your property quieter, warmer, and reduce your energy costs.

Double 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.

Below is a table showing how much money you could save on your energy bills by installing double glazing:

Energy ratingDetachedSemi-detachedMid terraceBungalowFlat
A rated £120 - £160 £80 - £110 £65 - £90 £55 - £75 £40 - £60
B rated £110 - £145 £75 - £100 £60 - £80 £50 - £70 £40 - £55
C rated £110 - £135 £75 - £95 £60 - £75 £50 - £65 £40 - £50

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

To enquire about installing double glazing in your property, contact Action Surrey on 0800 783 2503 or enquire online by clicking the link below:

Make an Enquiry