About Us

Overhead view of an A-1 Self Storage complex showing the layout of the storage units and the overall facility.

A-1 Self Storage is committed to fulfilling all your personal and business self storage needs with top quality storage, superior customer service, and convenient locations.

A-1 Self Storage is a division of the Caster Group, a third-generation family-owned company headquartered in San Diego, California. Founded in 1959, the Caster Group specializes in acquisitions, development, and management of A-1 Self Storage and other commercial properties throughout California. With more than 50 self storage locations and plans to open additional locations in the future, A-1 Self Storage is one of the state’s fastest growing self storage companies.

High angle shot of a large A-1 Self Storage facility with many individual storage units and access roads.

Aerial photograph capturing multiple rows of orange storage units at an A-1 Self Storage location.

Aerial view of an A-1 Self Storage facility with numerous storage units, a parking lot, and surrounding buildings.

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