Disclosed is a method for controlling an installation for handling hollow bodies, which includes: a plurality of treatment units; a transfer system; and a covering including a frame that defines casings and door leaves each mounted on a casing; a control unit. Also included are steps of: detection by the control unit of the stopping of a treatment unit; detection by the control unit of the closed position of door leaves located in the vicinity of an interface between the detected treatment unit that is stopped and the transfer system; and if these door leaves are detected in closed position, ordering by the control unit of the locking of these door leaves.