The disclosure relates to a method of erecting a tower comprising; —providing a foundation (1); —providing at least one top section (20) of a tower; —providing a first lifting mechanism (10) adapted to carry the top section (20); —providing at least one lower most tower section (25) onto the foundation (1); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one lower most tower section (25); —adding at least one second lower most section (24) above said at least one lower most tower section (25); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one second lower most tower section (25). Preferably a second lifting mechanism is carried by a nacelle which is rotatably arranged on the top section, thereby allowing the second lifting mechanism to be orientated in different orientations relative the top section.