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 rating | Detached | Semi-detached | Mid terrace | Bungalow | Flat |
|---|---|---|---|---|---|
| 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.
*All figures are taken from the Energy Saving Trust April 2019 figures.