Self storage in El Cajon CA

Hold a Unit for Free... or Rent Online Right Now

A-1 Self Storage

(619) 631-4207

556 W Main St El Cajon, CA 92020

Welcome to A-1 Self Storage in El Cajon, CA

At A-1 Self Storage in El Cajon, CA we are dedicated to providing you with the best in self storage. We offer month to month rentals in a clean, secure environment. Our state-of-the-art facility features 24 hour surveillance cameras, convenient online bill payment, and individually alarmed storage units. Our professional management staff will be glad to assist you -- we are here to help! Whether you are moving into a new home, expanding your business, storing your college dorm room for the summer, or even making space in your garage, A-1 Self Storage is here to help you along the way.

Providing secure, affordable self storage to businesses and residents in the San Diego East County area including El Cajon, Granite Hills, Rancho San Diego and nearby communities.

Office Hours


9:00am - 6:00pm
9:00am - 5:00pm

Closed all major holidays

Access Hours


7 Days A Week
7:00 am - 8:00 pm

Extended Phone Support Hours
Monday - Friday: 7:30am - 7:00pm
Saturday: 8:00am - 6:00pm
Sunday: 9:00am - 5:00pm

Storage size guide

You'd be surprised how small a storage space you can fit your belongings into! Let us help you save space and money by finding the right size to fit your needs.

Difference between renting and reserving

Rent online to save time. You can rent your storage unit from the comfort of your own computer, tablet, or smartphone any time! We guarantee you'll love your storage unit, or we'll make it right.

A-1 Self Storage offers moving supplies

A-1 Self Storage offers a full line of boxes and moving supplies for your one-stop shopping convenience.

Meet Our Team


Jessica and Phyllis have worked together on and off for the last 11 years.  Jessica has worked at multiple locations as a floater in the past and is now calling El Cajon Main her home store. Phyllis has worked at Main Street for the last 19 years. Between the two of them, they have 33 years' experience within the storage industry. Jessica and Phyllis make customer service their number one priority.  They achieve this with their positive and upbeat attitudes and attention to detail. 

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*Advertised unit sizes are approximations and are for comparison purposes only. Units may be smaller than indicated or shaped differently than indicated. Customers should inspect the unit before signing the contract and the rental decision should be based on the inspection of the unit to be rented and not on the advertised unit size. Units are not rented by the square foot, and rent is not based on square-foot measurements.

**All Internet specials are at select A-1 Self Storage locations on select units. Offer applies to new rentals by new customers only at participating A1 Self Storage locations. One offer per customer. Offer available for limited locations and is subject to availability. Offer has no cash value. No refunds or substitutions are permitted.