If you have been told the A/C compressor is leaking then a new or
rebuilt compressor is needed.
As to fixing this A/C compressor, yes it probably can be done locally
but that cost may exceed a new compressor. Local shop rates are higher
than factory labor rates and the factory has the efficiency advantage of
mass production - knowledge, tools and parts vs. one time learning, tool
acquisition and parts sourcing. Few parts are actually repaired, most
are replaced for this reason and due to their increasing complexity.