Mountainside Mini Storage

Storage Units in Helena, MT 59602

We have a state-of-the-art storage unit facility with the best customer service around! When you rent from us, you'll have 24-hour access to your belongings. Give us a call or book online today!

Rent Online

Storage Units in Helena, Montana

A Range of Sizes

We know how important it is knowing your belongings are safe and secure when you rent a storage unit. Rest assured, from our quality facility to our security systems in place, you will feel safe twenty-four hours a day - seven days a week. You can access your belongings anytime you would like with our twenty-four hour access. Our fully locked and gated storage units, as well as our digital video surveillance will help you feel even more secure. Our storage units start at a ten by ten size and you can go larger from there. We are conveniently located off of Applegate Dr on Lincoln Rd West, in Helena.

Never Pay Too Much

We have many different storage unit options to choose from, starting at a 10' x 10' storage unit and going up from there. With many different sizes available, you can choose the size which makes the most sense for your storage needs. If you need a smaller or larger storage unit down the road - no problem - you can change storage unit sizes at any time without incurring any additional costs. This gives our customers flexibility if there ever needs to be a change from when they originally started renting a storage unit from us.

Why Use Mountainside Mini Storage?

Customer Service

It is our dedication to customer service. We are committed to offering you exceptional value for your hard earned money.

Book and Pay Online

Our online software is easy to use and has all the features for a rich interactive experience.

All the convenience and security you need

24 Hour Access
Great Customer Service
Convenient Location
Digital Video Surveillance
Online Bill Pay
Variety of unit sizes available
Drive-up Access

Our Promise to you


We take the security of your stuff seriously and our SSL secure website protects your personal information

Customer Service

We commit to providing you a clean, ready-to-rent unit and friendly helpful employees


Manage your storage facility from the convenience of your own home, 24 hours a day and 7 days a week.