WILKINSBURG SCHOOL DISTRICT. 718 Wallace Avenue, Wilkinsburg, PA 15221. SUBSTITUTE CUSTODIAL WORKER. GENERAL DESCRIPTION. According to established procedures, cleans and services building areas. Move furniture, equipment and supplies in and round the facility and performs a variety of environmental services duties to maintain the buildings in a neat, orderly and sanitary condition. QUALIFICATIONS. High School graduate or equivalent – Act 34, 114 ...