BUILDING MAINTENANCE AND REPAIR SERVICES; HEATING, VENTILATION, AIR CONDITIONING AND REFRIGERATION SYSTEM MAINTENANCE AND REPAIR SERVICES; BUILDING ELECTRICAL SYSTEM AND LOW VOLTAGE ELECTRICAL SYSTEM MAINTENANCE AND REPAIR SERVICES; PARKING LOT SWEEPING AND REMOVAL; ROOFING MAINTENANCE AND REPAIR SERVICES; AND TENANT FINISHING SERVICES, NAMELY BUILDING CONSTRUCTION AND REPAIR, AND CARPENTRY, PLUMBING AND ELECTRICAL CONTRACTOR SERVICES