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 the Self Storage division of the Caster Companies, a third generation family owned company headquartered in San Diego, California serving you since 1959. The Caster Companies specializes in acquisitions, development and management of A-1 Self Storage, and other commercial properties in California. Our Real Estate Portfolio includes over 4 million square feet in real estate properties, including over 40 self storage locations. Our plans to open more locations in the future will make us one of California’s fastest growing companies.