Armstrong Lock & Safe Co. 1027 Fair Oaks Ave, South Pasadena, CA91030 Armstrong has been a local locksmith since 1958. The company also offers home improvement and general maintenance…More services. Armstrong Lock & Safe Co. is on-call 24 hours a day. The company deals with safes, provides photo copying services and door locks. It also makes keys and hosts a notary public service. Family owned, the store is in a very histoic builiding on Fair Oaks right next to the Rialto movie theater.