Janitors usually work without direct supervision. Some janitors clean one building, while others clean several buildings and travel between them. They often work evenings and weekends. More than one out of three janitors work part time. The work often involves lifting and carrying objects.
Many tasks require stamina and constant bending and stretching.
Janitors may use noisy power equipment and hand tools. They are occasionally exposed to dampness and humidity while washing floors and windows. Wages vary according to training, experience and location. Entry level wages may be lower. Pay varies by employer and geographic area.