Professional window cleaners use a variety of special equipment to ensure the best results and maximize safety. These include high-reach window cleaning poles, ladders, bucket systems, detergents and cleaners, squeegees for wiping down windows and glass surfaces, water fed pole systems that employ purified water instead of chemicals or detergents for rinsing off surfaces without leaving streaks or residue behind. Additionally, they may incorporate tools such as brushes for hard-to-reach areas around fixtures and locks, small vacuums to remove dust from tracks and sills before cleaning begins, scrapers to remove stubborn dirt buildup on glass panes or frames. All these tools allow professional window cleaners the opportunity to thoroughly clean windows with minimal risk of injury while being efficient in their work process. This answer was provided by Jeff Likes Clean Windows!