In Great Britain we call them caretakers, in America they are known as janitors. Janitorial duties involve taking care of a building such as an office block, apartment building or school. The main janitorial duty is one of cleaning and can sometimes include maintenance and even security. This can mean some form of training or licensing to be required, but this can depend on circumstances such as employers needs and the capacity of the job. Other janitorial positions may fall under different titles such as housekeeping staff or housekeepers. Politically correct titles also include, to name but a few : General Cleaner, Janitorial Engineer, Sanitation Supervisor and so on.