Just like dj1 mentioned, you can make use of referrals and websites to know about the residential window installers in your locality. There are many window installers around the world that can offer friendly, knowledgeable service when you are ready for windows to be installed. My recommendations is with Clera windows whom I am dealing for about three years.

Few states require a specific window contractor license. It is more common to have a general contractor license in construction. Even then, some states do not even require this. Therefore, it is a good idea to check references and to ask the window contractor to provide you with information about his or her training and experience.