Storage Units from Small to Large

We look forward to helping you with all of your storage needs at A-1 Self Storage in El Cajon’s Bostonia neighborhood. From small storage units that serve as an extra closet to large storage units that can fit all of the belongings in your house, our self storage units are sure to meet your storage needs.

Rest assured, we are committed to your safety. Our facility is cleaned frequently and all employees are trained in social distancing best practices. If you have any questions, don’t hesitate to reach out to learn more about what we’re doing to keep you and our employees safe.

Unit Size Guide

Rent Your Unit Online

At A-1 Self Storage, we have designed storage solutions to meet the needs of our modern customers. Rent your unit online from the convenience of your home on your laptop, smartphone, or tablet. Then stop by during business hours for your gate code.

Explore our full array of storage unit sizes and prices and reserve your El Cajon, California, self storage unit online today.

Clean hallways through self storage units at A-1 Self Storage in El Cajon, California
A freight elevator at A-1 Self Storage in El Cajon, California
Convenient drive-up storage units at A-1 Self Storage in El Cajon, California

*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 A-1 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.