About Us

DNS Exterior Inc. is a full-service contractor. We don’t just provide our customers with the choices that will best fit their needs and budget, but we also offer the installation of the products by our factory trained and certified installers. We are best known for our expertise with exterior products such as windows, siding, roofing, soffit/fascia, and gutters.

We are fully staffed to accommodate both residential and commercial clients. Our philosophy is “No job is too big or too small” if your needs are one window or one hundred we can meet both. Call today to get your free in home or on site estimate. We look forward to hearing from you.

We are based in the western Chicago suburbs in Lockport, Illinois and do business all over Chicagoland for residential and commercial clients.