Sash windows are those that are commonly located on old houses that will be between 500 and 60 years old. They may be nice to look at in many ways but they are certainly not functional and practical at completing the tasks that they are supposed to complete. It is, therefore, a very good idea to make sure that you upgrade your windows to double glazed version as soon as you can.

The modern house has a lot of common features that one might consider pretty important when they are on the market to buy. Getting a house with double glazed windows is certainly one of the factors that you will have to consider and if you get one without then the chances are you are just going to end up spending lots of money converting the windows to double glazing anyway.

Double glazing is something that is pretty much a pre-requisite when buying a modern home. But what are the pros and cons of getting these sorts of windows?