Over the years the windows in your home take a lot of abuse due to weather conditions and user operation. Some of the operating features and mechanics will break down over time and then can fail. If you have already replaced windows or know that the windows in your home have been replaced in recent years they still should have a manufacturer warranty. Most common warranty periods range from ten to thirty years and cover glass and mechanical part failures.
Over the years, the windows in your home take a beating from the outside elements. There are some normal problems that can occur during the lifetime of your window glass due to normal wear and tear or extreme weather conditions.