Business Mailing Address in San Francisco: 795 Folsom St,San Francisco, CA, 94107.Company main office address:735 Crocker Ave, Daly City, CA 94014. We have no retail store, this address is where we receive our mail.We perform our services through a network of independently owned and operated affiliates.Best Bay Locksmith is licensed by the California Bureau of Security and Investigative Service, License No. LCO 4313..