Custodian. The Custodian is responsible for maintaining high standards of cleanliness throughout the school. The Custodian will be responsible for an area and will be expected to clean to the frequency and standard set out and any other area as required. The Custodian is responsible for cleaning buildings, removing debris, and keeping areas neat and tidy. Vacuums and buffs floors, empties trash receptacles, and replaces lining of the trash cans. ...