Skip to main content

Mini U Storage - 3900 East 45th Avenue, Denver, CO 80216

4.8/5 - 547 Reviews
Location:
3900 East 45th Avenue, Denver, CO 80216
Office hours:
  • Mon-Fri: 9 a.m. - 6 p.m.
  • Sat: 8 a.m. - 6 p.m.
  • Sun: 9 a.m. - 3 p.m.
(303) 321-3055

Mini U Storage - 3900 East 45th Avenue, Denver, CO 80216

  • Drive-Up Access

    Drive directly up to your unit for easy loading and unloading

  • Retail Available

    Moving and packing supplies available for purchase on-site

  • Onsite Manager

    On-site staff available to assist with property needs

Unit size details are currently not available for this property. Please the property operator for details about available units.

Amenities & features

  • Drive-Up Access
  • Retail Available
  • Onsite Manager
  • Truck Rentals
  • Security Camera
  • Gate
  • Parking
  • Credit Cards Accepted
  • Online Payment

Customer reviews

4.8/5
Average rating
547
Number of reviews

Read some helpful reviews of Mini U Storage, 3900 East 45th Avenue, Denver, CO 80216, shared by real renters with genuine experiences and honest opinions.

My Review of Mini U Storage (45th Ave)Rating: ?????I had a wonderful experience at this Mini U Storage location! The manager, Andrea, went above and beyond to help me out. She was incredibly attentive and personally assisted me with everything I needed, including boxes, tape, a lock, and shelving units.The facility is clean, easy to access right off I-70, and the customer service is absolutely top-notch. I highly recommend this location if you want a smooth, stress-free moving experience! Thank you, Andrea! ... Read more
Adam “. - 16 July 2026
The front desk staff was super friendly and helpful and made my experience as a first time renter very easy and stress free!! The location is easy to get to and I love that the units are drive-up accessible. Would definitely recommend renting here! ... Read more
Savanah A. - 4 June 2026
I have had the best experience here at this location! Andrea is the greatest!! I am from Texas here on business, Andrea has helped me every step of the way, and this is hands down one of the cleanest places I have ever visited or done business with. 10/10 recommended to anyone who is needing to store anything! ... Read more
Chance V. - 24 February 2026
Paul at Mini U Storage was fantastic to work with. He was friendly, knowledgeable, and made the entire process quick and stress-free. The facility is clean, secure, and well-run, and Paul’s customer service really stands out. Highly recommend ... Read more
John V. - 24 February 2026
Andrea is an amazing woman! It's so great to know that I can get the best customer service possible. Her staff is so great. Maintenance is awesome! It's a great location for a great price and amazing staff!! ... Read more
Julia P. - 23 February 2026
Ethan W. - 23 February 2026
????? Andrea is the reason this place deserves five stars. She went above and beyond—walked me through everything, personally showed me the unit, had it cleaned again just to be extra thorough, let me set my own gate PIN, and even offered supplies. Nothing felt rushed, nothing felt transactional—just genuinely supreme customer service. If you’re considering Mini U Storage in Denver, ask for Andrea. Absolute rockstar. ... Read more
Bubblegum G. - 24 January 2026
Jonathan L. - 28 August 2025
This has been the best experience I've had with a storage facility. They have great customer service and are willing to work with you. I would recommend to anyone e I know that needs a storage. Thank you Andrea and Tavon keep up the great work! ... Read more
Secrets K. - 28 June 2025
This was a great place to store additional stuff prior to a move. The location is very convenient and easy to access. The biggest perk of this place is their customer service. Great customer service is hard to come by these days, and I'm shocked whenever people are accommodating and kind. Every person I've talked to at this site has been kind, respectful, and super helpful! I would totally use this place again! ... Read more
Sukhmeet S. - 23 June 2025
Christina M. - 17 June 2025
The managers made the rental experience so easy and convenient for us. Having a truck rental to help move our things was a huge benefit as well. We appreciated the great customer service a lot! We highly recommend this facility for storage. ... Read more
Renee B. - 31 March 2025
Excellent Customer Service! They were very professional an helpful! I would definitely recommend to anyone! Andrea & Mike did ~~RAISE~~ WORTHY exemplary work!! I was blown away by their hospitality an kindness! ... Read more
Miranda - 31 March 2025
Sarah R. - 25 March 2025
Gigi - 4 March 2025
Chris L. - 28 October 2024

About this facility

Located at 3900 East 45th Avenue in Denver, this Mini U Storage facility offers convenient storage solutions with small units perfect for personal or business needs. Whether you're downsizing, decluttering, or need extra space, these units are designed to provide easy access and functionality.

This facility features drive-up access, making it simple to load and unload your belongings directly from your vehicle. For added convenience, the property includes parking, ideal for those looking to store vehicles. Security is a top priority, with security cameras monitoring the premises and an onsite manager available to assist and enhance safety. Accessing your unit is hassle-free with a secure gate system, and you can easily manage your account with online payment options.

For those planning a move, this facility also offers truck rentals and a retail store stocked with moving supplies. This Mini U Storage facility is an excellent choice for locals in the Denver area seeking secure and practical storage solutions.

Location & walkability

This storage facility is in an area with moderate walkability and some public transit options. A personal vehicle may be needed for certain trips.

48

out of 100

Walk Score

Car-Dependent

Most errands require a car

48

out of 100

Transit Score

Some Transit

A few nearby public transportation options

49

out of 100

Bike Score

Somewhat Bikeable

Minimal bike infrastructure

Walk Score®: 48, Transit Score®: 48, Bike Score®: 49

Neighborhood highlights

Located near shopping, car wash stations, and other local conveniences, this storage facility helps you make the most of every visit.

  • 40th & Colorado

    Transportation 0.09 miles

  • 40th & Colorado Track 2

    Transportation 0.09 miles

  • 40th & Colorado Track 1

    Transportation 0.1 miles

  • 40th & Colorado Gate A

    Transportation 0.11 miles

  • 40th & Colorado Gate B

    Transportation 0.11 miles

  • 40th & Colorado Park-n-Ride

    Services 0.14 miles

  • 40th & Colorado Park-n-Ride

    Services 0.19 miles

  • DB's Wine and Liquor

    Shopping 0.22 miles

  • Popeyes

    Food & Drinks 0.23 miles

Frequently Asked Questions

The right storage unit size depends on what you plan to store and how much space you need to move around your items.

5x5 or 5x10 units are great for smaller loads, such as chairs, lamps, small furniture pieces, boxes, books, and documents.

10x10 or 10x15 units work well for larger furniture, bicycles, appliances, and the contents of a small apartment.

10x20 or 10x30 units can typically fit the contents of a three-bedroom home, including large furniture and multiple appliances.

If you’re unsure which size is best, a unit size calculator can help estimate the right fit based on the items you’re planning to store – helping you avoid paying for more space than you need.

The facility at 3900 East 45th Avenue is accessible during regular access hours, typically Mon-Fri: 9 a.m. - 6 p.m., Sat: 8 a.m. - 6 p.m., Sun: 9 a.m. - 3 p.m. Office hours and gate access times may differ, so it’s a good idea to check the facility’s posted schedule before your visit.

To open your storage unit door, start by unlocking it, whether it uses a traditional padlock or a Bluetooth-enabled smart lock. Once unlocked, grab the bottom handle and lift or pull up the roll-up door until it’s fully open.

If you’re using the unit for the first time, make sure the lock is properly removed before opening the door to avoid damage.

Security helps protect your belongings while they’re in storage and gives you peace of mind between visits. Many self storage facilities use a combination of features such as video surveillance, gated access, on-site management, and well-lit premises to help deter unauthorized access.

At Mini U Storage - 3900 East 45th Avenue, available security amenities may include Security Camera, Gate, Onsite Manager, designed to help keep your items protected.

Yes, most standard vehicles can be stored in self storage units. A 10x20 unit typically provides enough space for a car, while outdoor or designated parking areas may be available for larger vehicles.

For safety reasons, most self storage facilities restrict certain items. These commonly include:

  • Hazardous, flammable, or toxic materials
  • Perishable food
  • Live plants or animals
  • Cash, firearms, or irreplaceable valuables

Always check with the facility at 3900 East 45th Avenue for specific restrictions and recommendations.

Storage units for rent – StorageCafe
Contact this property now:
(303) 321-3055