Window washing is the process of cleaning the glass surfaces of windows to remove dirt, grime, and streaks. This task can be performed on residential or commercial buildings and often involves using specialized tools such as squeegees, scrubbers, and cleaning solutions. Professional window washers may also use safety equipment like harnesses and scaffolding when working on high-rise buildings. Regular window washing not only improves the appearance of a building but also allows more natural light to enter, enhancing the overall environment inside.