A height adjustable water spout mounting assembly includes a sleeve having an external threaded surface for deck mounting the sleeve and an internal threaded surface. There is a spout interface formed and adapted to extend above the spout deck with an outer surface which is at least in part threaded and sized to extend within and have its exterior threads interact with the interior threads on the sleeve for relative height adjustment of the spout interface with the spout mounting deck. There is further a height adjustable diverter lift rod associated with the sleeve and spout interface.