Promar is a leading Buffalo Grove Window and Door replacement company since 2000. We are a family owned and operated home exterior remodeling company whose motto is: if you’re going to do something, it is worth doing right the first time We install all windows: bay, casement, double hung, picture, basement, double pane, vinyl windows, wood windows, fiberglass windows, sliding doors, and more! Why Us? • Local to You • Licensed, Bonded & Insured • A+ BBB Rating