*Size of units is approximate
Drive-up units, 4k digital security cameras, and more. Find a storage unit you can trust with us on S Mountain Ave!
Family Owned and Operated
Excellent Customer Service
Find the right self storage unit or parking space for you!
Mountain Avenue Self Storage, located near the intersection of S Mountain Ave and Holt Blvd, offers a variety of self storage units and parking spaces for the Ontario, California, community.
We are right by Brooks Street, easily reachable from throughout the area. With online rentals and drive-up self storage units, finding the perfect storage unit and accessing it is as easy as could be!
Start renting online now to lock in a fair monthly rate for the self storage unit that will solve your space issues. Renting is easy, and accessing your unit is even easier.
Our on-site management is here and ready to help, and you can also learn how to contact us online, too! Find your storage unit now to get started.
These storage units feature indoor access, allowing you to stay out of the elements while working at your unit. Whether you’re moving items in or searching for something you boxed up, stay out of the rain and sun!
Drive-up units allow for the easiest loading and unloading of items. In addition to the convenience of moving your items in or out, these units also feature longer access hours.
Not sure how long you’re going to need your storage unit? We get it. Renovations can stretch on. You may not get through the waiting list at that new apartment for months. That’s okay; we’ve got you covered.
A place to keep your personal vehicles
In addition to an unbeatable value on local self storage units, Mountain Avenue Self Storage also offers parking for personal cars and trucks. These parking spaces are rented month-to-month like our storage units.
They are all uncovered spaces and are not suitable for larger vehicles (such as RVs). They benefit from the same great security as the rest of our facility, and our on-site management is happy to assist with your vehicle parking needs!
Find the answers you need before storing your items
Whether you have questions about how self storage works or about Mountain Avenue Self Storage specifically, our team is happy to help. We’ve put together these FAQs to help you get started, but feel free to reach out to our facility’s on-site management if you need more information or assistance!
Mountain Avenue Self Storage offers a variety of storage units right here in Ontario at Brooks and S Mountain Ave. This places us just by Holt.
Our storage units range in size and amenities, and the price will vary as a result. Check out our available units right here to find the monthly rate for what you need.
Moving in is easy at Mountain Avenue Self Storage! We offer free moving carts to help you move your heavy items, and you can even rent a drive-up unit to make it even more convenient.
We serve a variety of communities around our facility, including Ontario, Narod, Montclair, and more!
Military, police, and firefighters get 10% off storage units at our facilities.