CBRE serves clients through four business segments: Advisory (leasing, sales, debt origination, mortgage servicing, valuations); Building Operations & Experience (facilities management, property management, flex space & experience, critical infrastructure); Project Management (program management, project management, cost consulting); Real Estate Investments (investment management, development). Perform preventive maintenance, inspections, diagnostics, and repairs on commercial HVAC systems, including rooftop units, split systems, boilers, chillers, refrigeration equipment, air handlers, controls, and related mechanical systems.