Apparatus and methods for repeater/extender operation of a wireless-enabled device, including for extending the range or coverage in a wireless network subject to poor signal propagation or obstructions. In one embodiment, the apparatus and methods leverage use of a CPE (consumer premises equipment) configured as a 5G mmWave extender to extend RF signals from one or more base stations (e.g., a NodeB) to one or more other premises. In one variant, the CPE includes (i) a internal unit configured to provide 5G and Wi-Fi services to local UE, as well as other standard CPE functions; (ii) a donor apparatus configured to receive/transmit 5G signals to/from the one or more base stations; and (iii) a service apparatus configured to radiate 5G signals to UE/CPE with weak or no NodeB connectivity. The CPE is configured to create and dynamically update a weighted beam matrix used to select beams.