For a one-source, proven leader in the window and door industry, St. Louis area homeowners turn to Mills Window & Door. With more than 25 years of local window, door & millwork experience, be assured that our professional staff and installers provide top quality customer services to all residential clients. From the initial consultation, product selection and purchase process, through to installation and ongoing for years to come, our goals are to meet and exceed your standards. Whether you’re looking for replacement windows, low-maintenance vinyl siding or patio doors, visit our 14,600 square foot facility for state-of-the-art products. We can help you select materials for both aesthetic and functional purposes to fit nearly every budget. Redeem our coupons and save on select products and services.