The company focuses on providing home improvement services for the exterior of homes, with a specialization in windows, doors, and siding. Mengel Exteriors is a local business that aims to enhance the appearance and functionality of residential properties. They offer a range of services including installation, repair, and replacement of windows, doors, and siding. With their expertise in exterior home improvements, Mengel Exteriors helps homeowners improve the energy efficiency, security, and overall aesthetic of their homes.