David Warrenfeltz

David Warrenfeltz is a seasoned Facility Manager currently overseeing operations at the Marriott Data Center for both ABM and Xerox since 2013. With extensive experience in facility management, David excels in managing HVAC, mechanical, and electrical systems, planning modifications, budgeting, and enhancing operational efficiency. Previous roles include Maintenance Supervisor and Director of Maintenance at the City of Hagerstown Housing Authority, and Chief Engineer at Grubb & Ellis. David’s background also features electrical maintenance roles at Citi and various positions in electrical services early in the career. Academic credentials include an Associate of Science in Business Administration from Hagerstown Community College and an Electrical Construction Certificate.