To thrive as a Window Cleaning Subcontractor, you need strong attention to detail, physical stamina, and experience with safety practices, typically supported by a valid driver’s license and relevant insurance. Experience using commercial cleaning equipment like extension poles, squeegees, harnesses, and sometimes lift systems is common, and safety training such as OSHA certification is often preferred. Excellent time management, reliability, and clear communication with clients and teams are important soft skills. These abilities ensure efficient work, safe operations, and positive relationships with clients, all of which are critical for reputation and ongoing business in the field.