Creating Custom Enclosures & Home Improvements. Aluminum Contractors, Inc. built their superior reputation by providing the highest quality workmanship and materials to our customers in Lake County, Sumter County, and Marion County. Choose from a wide variety of services and products designed to help you enjoy more outdoor living, including screen rooms, sunrooms, carports, entry doors, Florida rooms, garage screens, lanais, pool enclosures, and glass windows. Check out our Visionary Screens, this is the newest innovation in Motorized Retractable Screens. We proudly manufacture and install American-made products. Call us today.