A-1 Self Storage is one of California's oldest and most respected self storage companies with over 51 convenient locations to serve all of your personal and business storage needs. Our expert staff will help determine the right size space to fit your needs and save you money. We sell boxes & moving supplies for your one-stop shopping convenience. A-1 Self Storage is committed to fulfilling all your storage needs with quality storage, convenient locations, and superior customer service. We are the self storage experts!

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 Group, a third generation family owned company headquartered in San Diego, California serving you since 1959. The Caster Group specializes in acquisitions, development, and management of A-1 Self Storage, and other commercial properties in California. Our real estate portfolio includes over 4.8 million square feet in real estate properties, including 51 self storage locations.

A-1 Self Storage offers business storage solutions to meet the needs of busy professionals including sales reps, pharmaceutical reps, manufacturers, retailers, professional services, and business owners. Free up valuable office, warehouse commercial space, or garage by storing files, records, excess inventory, furniture, equipment, seasonal displays, merchandise, promotional items and much more. We are your complete business off-site storage experts!

A-1 Self Storage offers personal storage solutions to meet the needs of busy individuals including homeowners, and apartment dwellers. Free up valuable garage and closet space by storing your seasonal items, furniture, sporting equipment, and much more. From large to small, we offer a wide variety of sizes to fit your needs and your budget. Call us today and let the expert staff at A-1 Self Storage help you determine the best size space to help you save space and money!

What's new?

Our sincerest thanks and best wishes to you and your family for a Happy Thanksgiving Day! https://t.co/AG1OiVFIBw

Posted on Nov 26, 2020  •  Twitter

We are currently experiencing an unplanned power outage that affects our A-1 Self Storage location at 131 Baroni Av… https://t.co/fK7UOYJ9PY

Posted on Sep 21, 2020  •  Twitter

Please note that access to our facility at 4981 Spring Street is currently restricted due to an unplanned power out… https://t.co/dDNhQRrSil

Posted on Sep 08, 2020  •  Twitter

If you're planning to move over the Labor Day holiday, you may face some additional challenges! Read how you can be… https://t.co/VS6C1tBb86

Posted on Aug 27, 2020  •  Twitter

We want you to know that we are still open and your health and safety continues to be our top of priority. Learn wh… https://t.co/G93FGbpbUN

Posted on Jul 22, 2020  •  Twitter

#TipTuesday Preparedness is key. Eliminate stress at the gate by preparing before you go! https://t.co/47MngP3scc

Posted on Jul 21, 2020  •  Twitter

"Usage during the time I had the unit was easy access and convenient." says Claudette, via StoreLocal https://t.co/kagpa6MBFk

Posted on Jul 20, 2020  •  Twitter

"I have used this facility for years and have nothing but GREAT things to say about A-1 and they're incredibly wond… https://t.co/2REiykM1TT

Posted on Jul 20, 2020  •  Twitter

"The staff here are very friendly, helpful and provide excellent customer service." says Robert on Google, via Stor… https://t.co/waWE2ZchXm

Posted on Jul 20, 2020  •  Twitter

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