Abstract: Service poles having improved structures, namely: extruded aluminum frame with special slots to removably retain covers and to mount receptacle retainers; pole hanger adapted for use with various sizes of poles and also adaptable to secure pole to a ceiling panel T-bar suspension system or alternatively to a floor supported suspension rod; base adapting pole for use on tile or carpet; ceiling tile trim plate adaptable for use with various sizes of poles and for use regardless of the point where the pole passes thru the ceiling panel; retainers for supporting single and duplex receptacles.