If you are looking for the best window replacement company in the Lake Norman, North Carolina area, look no further than Windows & Doors By Design! Our state-of-the-art vinyl windows are built to last and are guaranteed to look great on your home. They can even help combat high heating and cooling bills by making your home more energy efficient. We also offer window installation, window glass replacement, glass doors, siding, gutters, and much more. Our business is family owned and operated and has been serving the Lake Norman area for over 40 years. We are committed to providing you with high quality, reliable, affordable, friendly service on all your home improvement needs.