Mountain Avenue Self Storage

Ontario’s choice for affordable self storage

Make the Easy Storage Choice

At Mountain Avenue Self Storage, we strive to make your storage journey easy, affordable, and convenient. After all, the whole purpose of self storage is to make your life easier! We employ a variety of features and amenities to help you get the most out of storage.

Easy drive-up self storage units

Save time and make life easier by unloading right at your storage unit door.

Two convenient locations near you

Reaching your storage unit is easy with our great location.

Quick online storage rentals

Easily pay online from your home PC or smartphone.

Month-to-month rental agreements

Rent a unit without the hassle of a long-term contract.

On-site management ready to help

Our manager is on-site to help during office hours.

4k digital security cameras

Our storage facility features 24-hour video recording.

Affordable Storage Units in Ontario, California

Self storage fit for every budget in our Ontario communities

Located along Mountain Avenue, our self storage facilities were designed with the needs of our local community in mind. 

We offer a variety of storage unit sizes at our two convenient and accessible locations. 

We also have both drive-up storage units and indoor-access storage units, giving you the choice of pulling up to your unit or staying out of the elements while visiting it! 

Our self storage units are available to rent online. Check out our availability now, and start renting with ease!

View our rates

2 Convenient locations in Ontario, California


Serving our communities since 1980


4k digital security cameras on-site


Over 1200 self storage units in Ontario

Why Choose Mountain Avenue Self Storage?

See why Mountain Avenue Self Storage is the ideal storage solution for you!

Rent secure storage

Choose Better Storage

Store better with Mountain Avenue Self Storage


Our storage units are rented on a monthly basis, allowing you the freedom you deserve.

Fair Rates

Our rates don’t take advantage of our community. Find affordable storage with us!

Drive-up Units

Pull your vehicles right up to your storage unit’s door as needed.

Regular Pest Control

We do our best to keep our facility clean, safe, and pest-free!

Our Locations Near You