An elevator installation having a sealing device for sealing a door to a sealing surface, the sealing device comprising:
- a sealing element movably fastened to the door of the elevator installation;
- an electromagnetic actuator fastened to the door and being adjacent to said sealing element, said electromagnetic actuator acting on said sealing element to move said sealing element from a first position into a second position;
- and
- means for triggering actuation of said electromagnetic actuator before a door leaf of the door executes an opening movement.