Mini U Storage - 10350 North Washington Street, Thornton, CO 80229

4.6/5 - 413 Reviews
Location:
10350 North Washington Street, Thornton, CO 80229
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) 457-4100

Mini U Storage - 10350 North Washington Street, Thornton, CO 80229

  • 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

    Not sure which size you need? Check our size guide to find the perfect fit.
    5x10 Self Storage 50 Sq. Ft.
    Drive-up Access First Floor Access
    $101/mo
    5x5 Self Storage 25 Sq. Ft.
    Drive-up Access First Floor Access
    $79/mo
    10x15 Self Storage 150 Sq. Ft.
    Drive-up Access First Floor Access
    $230/mo
    10x10 Self Storage 100 Sq. Ft.
    Drive-up Access First Floor Access
    $207/mo
    10x20 Self Storage 200 Sq. Ft.
    Drive-up Access First Floor Access
    $296/mo
    No units are currently available.

    Amenities & features

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

    Customer reviews

    4.6/5
    Average rating
    413
    Number of reviews

    Read some helpful reviews of Mini U Storage, shared by real renters with genuine experiences and honest opinions.

    Joy K. - 16 June 2026
    Super friendly staff. The facility is in an excellent location that's quiet and tucked away. Still super close for easy access. Great prices and deals as well. We wouldn't be able to move without their help! ... Read more
    Alex B. - 19 April 2026
    There are numerous storage options available in the area, and utilizing Mini U Storage is highly recommended. The staff members are extremely helpful and accommodating. My parents have a large unit here, and when their lock became stuck, Leslie kindly removed it and provided a higher-quality lock. He also offered valuable tips to help avoid similar issues in the future. Both employees (Brenda & Leslie) demonstrate that customer needs are a priority. They work to ensure your items are secure by providing a safe environment, and they are transparent about the contract details. Additionally, they offer shelves to help keep your unit organized. The staff respond promptly to calls and provide reliable equipment. Finding such sincere and dedicated service is rare these days. If you need storage or a moving truck, this is the place to choose. ... Read more
    Kelsey M. - 16 April 2026
    Mini u storage was great, I came in to rent a unit, was unaware that needed a reservation. Brenda was so sweet and kind was able to still show me a unit and get everything handled.! I was in and out in under 10 minutes with a unit!! ... Read more
    Morgan B. - 7 March 2026
    armando d. - 23 February 2026
    Jose O. - 19 February 2026
    Great experience at Mini U Storage in Thornton! The staff was friendly, helpful, and made the whole process easy. The facility is clean, secure, and well maintained. We really appreciate the customer service from Leslie and Brenda. Highly recommend! ... Read more
    Beatrice C. - 14 February 2026
    had a great experience getting set up with my storage unit! The facility is clean, organized, and easy to access. A special thank you to Brenda in the office — she was incredibly helpful and patient, walking me through the entire process and answering all of my questions. She made everything simple and stress-free. I really appreciate her kindness and professionalism. Highly recommend this location for great service! ... Read more
    Tiffany C. - 24 October 2025
    first time getting a storage Geneva was so helpful and super nice she was training la Leslie and Brenda who were also very nice and made my experience the best so welcoming from these guys super knowledgeable Geneva is the best definitely give her a raise her multi tasking and her people skills thru the roof ??. ... Read more
    Richy C. - 8 October 2025
    Indra N. - 3 October 2025
    Joshua H. - 31 August 2025
    Amazing and friendly staff! My daughter and I had trouble finding the right storage for our items and I found a storage with 2 doors on it! This place is a must for storage unit..... This was posted yesterday when I purchased the unit for a free lock, when I arrived this morning a car was at the gate so I waited, when the car pulled forward I also pulled forward slowly and waited for the gate to close as it was almost closed it began to open again as I started exiting my box truck. I looked in the window and seen the new manager from the Colorado and I-70 store and thought he opened it since I was here to meet him for 2 shelving units I was renting from them. I drove forward and turned off my box truck and started walking towards him. He immediately became hostile and I was trying to explain to him I thought he opened the gate and he still remains hostile. This guy Definitely hates his job and residents. Please if you value your money, respect as a customer, or valuable property please avoid this location at all costs. Not mini u storage just this exact location. Thank you ... Read more
    Michael H. - 17 August 2025
    Tonyal S. - 3 August 2025
    With all the companies that make life so difficult, we found a company that made our truck rental and storage unit rental so simple. So accommodating. Great price. I kept thinking that it wasn't legit because it was too easy, I highly recommend Mini U Storage in Thornton,CO for all your storage and truck rental needs. Ask for Geneva. She's amazing. ... Read more
    Brian G. - 26 June 2025
    We’ve been looking for storage unit in Thornton, CO. . We stumbled upon Mini U storage. Geneva at the front desk was super friendly and helpful. We got a great deal. Highly recommend this storage facility. ... Read more
    Lori M. - 23 June 2025
    If you are looking for a inexpensive unit or added security on your things this is the place. Staff is prompt and kind. Totally understanding every storage situation is different. The price are the cheapest I have found in this area and but the completely worth more. I appreciate Mini u being there in my time of need and would recommend this site to anyone looking for storage. Geneva was a doll and provided great customer service. Thank you! ... Read more
    Nina C. - 7 April 2025
    I had a great experience at Mini U Storage! The staff was super friendly and helpful, and the process was quick and easy. The units are clean and secure, and I really appreciated how convenient everything was. Highly recommend for anyone needing a storage solution! ... Read more
    Rebecca P. - 27 March 2025
    Unit was filthy. Mouse droppings everywhere and spider webs. Trash. And the back gate was wide open the whole time i was there. Doesn't seem secure. The gentleman that works there was funny and helpful so I will give more than 1 star because that's not so common sometimes these days. The price was def the best around also just FYI. I backed out and had no problem receiving my money back in a few days. ... Read more
    Robin L. - 25 March 2025
    I’ve been had a storage for much longer than I care to admit, but Mini U Storage has been a delight to work with. They have always been extremely understanding regardless of the situation and they communicate effectively! I am happy to say I’ll be moving my things out at the end of this month, but I appreciate all you have done for me in keeping my most precious valuables. Thank you! ... Read more
    Xochitl R. - 25 March 2025
    ers2063 - 7 March 2025

    About this facility

    This Mini U Storage facility, located at 10350 North Washington Street in Thornton, CO, offers a wide variety of unit sizes, including small, medium, and large options to meet diverse needs. Conveniently positioned in a growing suburban area, this facility is ideal for accommodating extra belongings during a move, renovation, or downsizing.

    Key features include drive-up access and first-floor access, simplifying the loading and unloading process. The presence of an onsite manager, along with security cameras and gated entry, ensures the safety of stored items. For those with vehicles, the facility provides parking, making it a suitable choice for car storage. For added convenience, residents can take advantage of truck rentals and purchase packing supplies at the facility’s retail center.

    With the ability to pay online and accept credit cards, this Mini U Storage facility caters to busy schedules. It’s an excellent option for Thornton residents seeking accessible, secure, and well-equipped storage solutions.

    Price comparison

    See how this facility's unit prices compare to others in Thornton, broken down by size.

    Small $90/mo
    Location minimum Location maximum
    $55/mo $172/mo
    Medium $219/mo
    Location minimum Location maximum
    $134/mo $250/mo
    Large $296/mo
    Location minimum Location maximum
    $127/mo $609/mo

    Location & walkability

    This storage facility is in a highly accessible area with excellent walkability and public transit options.

    78

    out of 100

    Walk Score

    Very Walkable

    Most errands can be accomplished on foot

    31

    out of 100

    Transit Score

    Some Transit

    A few nearby public transportation options

    71

    out of 100

    Bike Score

    Very Bikeable

    Bike routes support regular local travel

    Walk Score®: 78, Transit Score®: 31, Bike Score®: 71

    Neighborhood highlights

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

    • King Soopers

      Grocery Stores 0.05 miles

    • Fuzzy's Taco Shop

      Food & Drinks 0.07 miles

    • Goodwill

      Shopping 0.07 miles

    • Starbucks

      Food & Drinks 0.08 miles

    • Subway

      Food & Drinks 0.09 miles

    • Planet Fitness

      Recreation & Entertainment 0.09 miles

    • Total Beverage

      Shopping 0.11 miles

    • Shell

      Services 0.14 miles

    • Dollar Tree

      Shopping 0.15 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 10350 North Washington Street 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 - 10350 North Washington Street, 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 10350 North Washington Street for specific restrictions and recommendations.

    Storage units for rent – StorageCafe
    Contact this property now:
    (303) 457-4100