Abstract: A garbage disposal installation tool for installing garbage disposal units under sinks providing two degrees of height adjustment that consists of a flat base portion, a hollow cylindrical housing portion that has an operable locking system attached to the base portion, a hollow cylindrical shaft portion sliding longitudinally inside the housing portion, wherein sliding position temporarily secured and locked by the locking system, a flat top platform portion having an externally threaded rod portion extending perpendicular to the top platform, and a rotatable lever bar nut having an internally threaded center through hole with screw threads matchingly corresponding with the threaded rod portion, wherein rotation of the lever bar nut causes axial motion of the externally threaded rod portion resulting in raising and lowering of the top platform portion.