Double glazing is one of the most cost effective ways to save money by insulating your house, and while all new houses now have double glazing fitted as a matter of course, there are still many older houses that have not had single glazing replaced.
The concept behind double glazing is very simple. Two single panes of glass are separated by a layer of air, and this reduces the loss of heat through the windows. This means that money is saved on heating the house.
Different types of double glazing perform differently, and there are different efficiencies associated with different costs, but having any type of double glazing installed will undoubtedly save money on heating costs.
Double glazing repair can be costly, and is a factor that should be considered when choosing what to fit. The life of double glazing varies with the predominating weather and the direction that the windows face.
The initial outlay to install double glazing is sometimes a deterrent to people having it fitted, but it should be remembered that many installation companies will do deals the more windows that you have fitted, and that the windows will pay for themselves over time with the money that is saved on heating.