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(406) 227-6652

Security Storage - 3425 Allied Street, Helena, MT

Self Storage, Car Storage 50 - 400 Sq. Ft.
4.4/5 - 45 Reviews
(406) 227-6652
Location:
3425 Allied Street, Helena, MT 59601
24/7 ACCESS
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
$50/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
$87/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
$70/mo
Large Storage Unit
10x40
Parking
400 Sq. Ft.
Car Storage
Drive-up Access
Other Vehicle Storage
$195/mo
Large Storage Unit
10x30
Parking
300 Sq. Ft.
Car Storage
Drive-up Access
Other Vehicle Storage
$135/mo
Large Storage Unit
10x25
Self Storage
250 Sq. Ft.
$126/mo
Large Storage Unit
10x20
Self Storage
200 Sq. Ft.
$105/mo

Amenities

  • 24 hour access
  • Onsite Manager
  • Security Camera
  • Gate
  • Parking
  • Online Payment
  • RV Storage

What customers are saying

4.4/5 - 45 Reviews

Read some helpful reviews of Security Storage at 3425 Allied Street, shared by real renters with genuine experiences and honest opinions.

I have had my unit for quite some time. I have been satisfied with the secure facility. The new owners are very easy to get ahold of and very helpful with any questions. Id recommend security storage to anyone looking for a safe place to store their personal property! ... Read more
Vanessa P. - 5 February 2026
I can’t say enough good things about this storage facility under the new ownership! The difference is night and day — everything is clean, secure, and so well maintained. The new management team is super friendly, professional, and really goes out of their way to help. ... Read more
Brandon P. - 5 November 2025
Kristina P. - 5 November 2025
Kaley P. - 5 November 2025
This facility provides excellent value and is remarkably easy to use, making it the perfect arrangement for my needs. The new ownership is highly responsive and accessible, and the manager, Tyler, was a pleasure to speak with. ... Read more
Sean M. - 30 October 2025
Impossible to get ahold of management let alone someone who speaks fluent English in addition to their poor attention to the property they are hiking the rental prices. Don't waste your time at this run down place, its had multiple break ins and absolutely no protection for your belongings. ... Read more
Keely B. - 19 November 2024
The property is accessible always and never closes. It gives me peace of mind knowing that I can have access to my stored belongings or can bring items to store at any time of day for whatever reason. It has a pin code secured gate and security fence as well as cameras. ... Read more
Jarrett N. - 18 February 2022
Bonnie L. - 24 September 2021
I got an email saying I moved out of my unit when I didn't a month before my actual date, and called to talk to someone and so far I have sat on hold for a half hour waiting to talk to someone. I have a 10×15 storage unit full of everything for a home for my 5 kids and I. Im a single mom. Potentially going to lose all of mine and my kids things ... Read more
Lisa E. - 3 August 2021
I don't know if Security Storage even reads this review. I don't know if their company even exist anymore . I have been trying personally and members of my family have been trying to get in touch with someone from security storage from the past 2 weeks. As of the writing of this review it is June 2nd 2021. I have called their phone number numerous times only to get answering machines. There is no email address that I saw on their website in order to get in touch with them. I've been trying to get in touch with them so I could access my items on their property. Either the gate code has changed are the gate is non-functional. I'm trying to get in touch with them this way hoping that they can actually read this review. But I would suggest not doing business with this company until you can at least get in touch with them. ... Read more
Michael S. - 2 June 2021

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Frequently Asked Questions

Storage units available at Security Storage - 3425 Allied Street include the following amenities: 24 hour access, Onsite Manager, Security Camera, Gate, Parking, Online Payment and RV Storage. Depending on what you need to put away in storage, you can discover there are some things you absolutely need, so make sure you check with the facility manager that you'll find everything you need on site.

This particular storage facility provides self storage units of different sizes, ranging from 50 to 400 square feet. Space is not an issue! If you have more belongings to store, or simply bulkier items or even vehicles, you should go for larger storage units.

You already know how much stuff you need to put in self storage, so figuring out the unit size you need is the next step. Smaller units such as 5'x5' or 5'x10' spaces can usually be filled with the amount of items you would normally store in a closet: a few chairs and lamps, sports equipment, garden tools and some boxes.

Moving on to larger sizes, imagine the 10'x10' and 10'x15' units as similar to a bedroom or a living room – larger pieces of furniture, sturdier equipment and bicycles can fit here. Finally, a 10'x20' unit has enough space for the contents of a 3-bedroom house, while the larger 10'x30' space easily accommodates the contents of a loaded semi-truck.

Monthly prices for units offered by Security Storage - 3425 Allied Street start from $50 and can go up to $195 for larger spaces.

Accessibility and quickness are key when it comes to storage, so drive-up storage units are generally regarded as very convenient. Pull your car right up to your storage space, load, unload, and you're good to go! However, if you're mostly storing temperature-sensitive items, you should rather consider indoor storage units.

Climate-controlled units maintain consistent temperatures and humidity levels all year round, making them perfect for all your sensitive items. Moisture and varying temperatures can damage a whole host of things, and that is why a lot of people choose to use climate-controlled units to store items like wooden furniture, electronics, artwork, documents and photographs, collectibles, antiques, etc. If the belongings you're storing are important to you, you should consider renting a climate-controlled unit.