About Us

Since 1980, Mountain Avenue Self Storage has been in the business of convenient storage. For the residents and businesses in Ontario, California, we have stood the test of time by offering clean and straightforward rentals for people to keep their cherished belongings. Our business motto is simple: offer friendly services and easy ways to rent while providing a haven to hold your items. Whether you are a business owner seeking ways to keep your stock in check or you need somewhere to keep seasonal equipment, we can help. As a locally owned and operated business, we are here to help uplift our fellow entrepreneurs.

Are you getting ready to downsize or relocate? We have been helping families stay on top of tasks and remain organized for over 40 years. We offer the perfect solution to keeping the items you want so you can focus on your needs. Stash furniture and appliances away while renovations take place, or simply drop off seasonal gear to make room in your closet. No matter your needs, you are sure to find just the right space for you. Get in touch with us to begin storing what you need today.