The Window Cleaning Platform is, as implied, a window cleaning platform in Grand Theft Auto IV.
The Window Cleaning Platform is a conventional window cleaning platform that can ascend and descend the faces of skyscrapers and other large buildings to clean windows. In Grand Theft Auto IV, window cleaning platforms are operable and featured on several buildings in Liberty City. Window cleaning platforms are used in three missions in GTA IV (Blood Brothers, Deconstruction for Beginners, and Late Checkout) in which they are used to ascend buildings to gain a good sniping position or advantageous assault/escape, although the one from Late Checkout is taken down after completing it. Window platforms can also be used outside of missions. The player can control the movement (up or down) of the platform to ascend to the top of buildings.
The Window Cleaning Platform is considerably slow at climbing the various skyscrapers, during the mission Deconstruction for Beginners where the Window Cleaning Platform is officially introduced to the player, Niko will comment on the slow speed of the platform.
Window Cleaning Platforms can only be found in Algonquin.