A Siding Subcontractor installs, repairs, and replaces exterior siding on residential and commercial buildings. They work with various materials such as vinyl, wood, fiber cement, and metal to enhance a building's durability and appearance. Subcontractors typically work under a general contractor or construction company, ensuring the siding is installed correctly, weatherproofed, and meets building codes. Their responsibilities may include measuring, cutting, fastening siding materials, and sealing joints to prevent moisture damage.