janitorial services, and property maintenance and repair services, namely, painting, servicing of specialized air pollution devices, replacing filters and routine servicing of HVAC equipment; servicing of cleaning equipment; servicing of industrial vacuums, removal of fabrication dust, and removal and preparation of waste and scrap materials for recycling provided to owners or managers of properties, buildings, facilities, campuses, sites, plants, institutions, industrial parks, residential buildings and communities, schools, hospitals, healthcare facilities, shopping malls and businesses of all types; mechanical maintenance services

security guard services; concierge services; providing parking lot and parking garage attendants to owners or managers of parking facilities; emergency medical and fire brigade services; monitoring security systems for building access control and personal screening of building visitors for security purposes; landscape maintenance services