Description
Established in 1971, Mainline Security has moved to the forefront of the commercial security field. Located in the heart of San Francisco's Financial District, with extensive experience in servicing the needs of commercial and residential accounts. From our specialty of restricted proprietary master key systems to our premier office furniture key by code service, we are committed to quality and excellence.
School Ratings & Info
Description
Established in 1971, Mainline Security has moved to the forefront of the commercial security field. Located in the heart of San Francisco's Financial District, with extensive experience in servicing the needs of commercial and residential accounts. From our specialty of restricted proprietary master key systems to our premier office furniture key by code service, we are committed to quality and excellence.
Based on information from California Regional Multiple Listing Service, Inc. as of 2026-04-15T00:28:31.5. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is deemed reliable but is not guaranteed accurate by the MLS or RE/MAX Empire Properties. Licensed in the State of California, USA.