24/7 Emergency Service:(510) 527-7000

About us

Rex Key & Security is a company specializing in home and commercial security services.

Residents and business owners have been turning to Rex Key & Security for their Rex key and home security needs in Berkeley and Oakland for a century! One hundred years ago, we opened our doors as a single person locksmith service for the East Bay area. Today we still have our shop, located at 1908 University Avenue but as the area has grown, so have we.

Advanced technology, exceptional customer service and quality people are the hallmarks of Rex Key & Security a nationally recognized locksmith security company in Berkeley with one of the finest reputations in the industry.

How we can Help You!

  •      Services Berkeley
    • Rex Key & Security is the most complete locksmith company in Northern California’s East Bay area and services commercial, institutional, industrial and residential clients throughout the state.

  •     Rex key's commercial Services
    • Rex Key & Security we believe in building relationships. After an initial consultation, we provide state of the art commercial security solutions in the Bay area that include electronic access controls, CCTV, remote video transmissions, master key systems, burglary & fire safes, access controls & locks, and general commercial locksmith services.

  •     Systems
    • Maintaining security measures while providing accessibility is essential. Establishing the priority of security between the various locking segments depends on the security objective of the facility. Once the security objectives have been identified an integrated security package can begin.

Our History

Honest. Dependable. Knowledgeable. Since 1910

Mobile units serving Bay Area Counties instead of neighborhoods in the East Bay Area.


Founded in 1910, Rex Key & Security serves Fortune 500 companies, as well as mid-sized and smaller commercial and institutional clients.