Serving the Greater San Francisco Bay Area since 1969 & Transbay Locksmiths  An Authorized SecureRite Dealer P.O. Box 2527 Castro Valley, CA 94546 (mailing address) 111 Santa Teresa St. (no storefront-deliveries only) San Leandro, CA 94579 Phone Toll Free: 888-393-2436  Local San Leandro: 510-733-1897 Fax: 509-691-8381 California Bureau of Security & Investigative Services License # LCO967 to request a service call or a free quote Click above to see our reviews on Yelp Click here for our on line catalogue of security products. We sell, service and install Schlage Locks. We are Schlage Primus Authorized Dealers. Order Designer Baldwin Lock Hardware from us!   Click here or on the newspaper above to view our current security newsletter! Click here to take a residential security quiz Visit our pages to view products, and learn how to protect your home and loved ones with quality SecureRite Products. We will come to your home or business for a free security survey! We offer technical consultation for both industrial and outdoor security. Keystone Security / Transbay Locksmiths is a licensed, bonded Locksmith. LCO 967 We sell, install and service residential and commercial locking devices. Last updated March 11, 2011