Like everything in your home over the years windows will become outdated and because of this replacing them might not be the only option. If you are considering and kitchen or bathroom renovation then windows will be on your radar. By replacing your windows you will have less drafts, the new windows will be easier to clean, lighter to open and close and the safety featured will be substantially improved. They will be more cost efficient as well. So what are some of the things you need to know before you make the investment.