The District of Columbia Department of General Services (“DGS” or “Department”) is issuing this Invitation for Bids (“IFB”) to engage a Small Business Enterprise (“SBE”) firm contractor (“Contractor”) to complete all necessary services, supervision, permits, labor, supplies, equipment, and materials for Roof Replacement and Upgrades at Engine Houses 4, 5, 8, 24 and 20 (the “Project”).