Need A Good Plumber

I have 3 apartment buildings in Hollywood/KoreaTown areas. Old 1920's brick buildings with lots of galvanized pipes. I need a good journeyman plumber who can be available to handle regular plumbing problems. I have a good licensed guy for serious plumbing issues he's too expensive to repair basic pipe bursts, clogged sinks and drains, and broken angle stops, etc. I need someone reasonably priced for regular jobs. Probably several times per month. Can be evenings and weekends. I want high quality work, no sloppy clams or Mickey Mouse jobs.