Abstract: A window washing system for cleaning a window mounted in a dwelling wall having an inner surface and an outer surface includes a window squeegee assembly that is attached to the outer surface. The assembly includes a pair of supports that are each elongated and attached to the outer surface on either side of the window. An elongated elastomeric blade is attached to and extends between the supports. The blade has a contacting edge abutting an outer surface of the window. A driving assembly is mechanically coupled to the pair of supports for selectively moving the blade upwardly or downwardly. A liquid dispenser for selectively dispensing liquid on the window. A reservoir is fluidly coupled to the dispenser by a conduit.