An upper bundle steam generator cleaning, inspection, and repair system includes a deployment and support device receivable within the steam generator configured to raise and position a distal end of said device to the upper bundle region of the steam generator, a head subsystem connected to the distal end of the deployment and support device for at least one of cleaning, inspection, and repair of said upper bundle region, and a lateral support subsystem deployable to support said head subsystem within the upper bundle region of the steam generator and retractable to deploy said head subsystem up to the upper bundle region and to withdraw said head subsystem therefrom.