A window squeegee (1) for cleaning surfaces, such as skyscraper windows, comprises a handle (2) associated to a head (11) provided with a first connection element (12) and a second connection element (18) for connecting a spatula (46) to the handle (2). In a condition of normal use of the window squeegee, the spatula (46) is held between the first element (12) and the second element (18) and in a condition of replacement of the spatula, the second element (18) is rotated by the first element (12) to allow the replacement of the spatula (46) which is held associated to the head (11) of the window squeegee and is not free to remove, to ensure a safe replacement.