Building Materials, Philadelphia Concrete, Philadelphia Contractor, Excavation, Philadelphia Union Concrete, Underpinning, Philadelphia Underpinning, Anthony Biddle Contractors, Anthony Biddle Contractors Excavation, Specialty, Concrete, Garages, Shoring, Soldier Beams, Underpinning, Water Reservoirs, Post Tension, Flatwork, Foundations, Pedestrian Tunnels, Linea; Contractors; Employing multiple building trades affords us the ability to perform various types of work in the greater Philadelphia metro region specializing in ...