It’s not just that fitting energy efficient windows saves energy – and a lower energy usage means smaller bills, it’s also that having double glazing fitted to your home means no more draughts and much warmer rooms. Any heat you put into the room is not dissipated through the windows.
Depending on the size of your house and the number and size of your windows, replacing single glazing with energy efficient double glazing will save up to £200 a year – and as energy prices go up these savings will increase.
In addition to the benefits of reducing draughts from single glazed windows and frames, fitting double glazing also reduces ambient noise from outside the home, such as traffic noise. Double glazing also reduces that awful condensation that comes with the temperature differential of single glazing. However, you will still get condensation unless your room has some airflow to allow moisture in the air from people’s breath to escape – perhaps through a chimney. In any event allowances can be made for airflow when windows are fitted.
One major outcome of replacing single glazed windows with double glazing-which is important for more and more environmentally conscious people, is that the overall carbon footprint of the household is reduced. Using less fuel means that less carbon dioxide (the main greenhouse gas) in the atmosphere than would otherwise be the case. This amounts to around 700 kg a year or so.