Address 7134 Columbia Gateway DriveColumbia, MD 21046 Contact Info (410) 259-3679 Email Robert Calloway Global Facility Solutions, LLC website Category Service Providers Industry Consultant Energy Services Company Engineering/ Architectural Firm Services Enhanced HVAC Tune-Up Large Building Tune-Up Small Building Tune-Up Technical Services Specialty Building Automation Building Tune-Up Chiller Systems Compressed Air HVAC Controls Lighting & Controls Motors Process Improvements Refrigeration Retro-commissioning Unitary HVAC Variable Frequency Drives