Thornton Self Storage

Self storage at 3685 E 121st Ave, Thornton, CO 80241

3.9 (82)

Is Thornton Self Storage Right for You? Pros and Cons

  • Wide variety of unit types including climate controlled options
  • Excellent security features including electronic access and 24-hour CCTV
  • Convenient on-site U-Haul truck and trailer rentals
  • Office staff can be variable in customer service experience
  • Indoor vs. drive-up unit selection process has had occasional issues
  • Gate access hours are limited to specific daytime and evening hours
Last Updated on 14th July 2025

Thornton Self Storage – Convenient and Reliable Storage Solutions in Thornton, CO

Company offers a comprehensive self storage facility serving the needs of home owners and business owners in the Thornton area. Located at 3685 E 121st Ave, this facility features month-to-month leases with a variety of storage unit options including regular and garage door units as well as climate controlled spaces for extra protection of your belongings. Customers benefit from easily accessible units and wide aisles, making move-ins and move-outs smooth and efficient.

Security and Additional Services

Security is a high priority at this location, with electronic gate access, 24-hour CCTV surveillance, individually alarmed units, and cylinder locks ensuring your items remain safe. There is no need for a security deposit for rental, and insurance is accepted for further peace of mind. Payment convenience is offered through acceptance of major credit and debit cards and an optional automatic payment system.

Beyond traditional storage, the company enhances customer experience by providing U-Haul truck and trailer rentals suitable for local or one-way moves. The on-site supply and gift shop is a unique addition that adds to the convenience. Staff maintain the facility to a high standard, regularly cleaning the units and grounds.

The leasing process is quick, typically under 20 minutes, allowing customers to move in the same day. Office hours run Monday through Saturday from 8:30 AM to 5:00 PM, and Sundays from 8:30 AM to 1:00 PM, while gate access is available early morning through late evening every day.

Whether you need a safe place to store household goods, business materials, or require rental trucks and supplies, Thornton Self Storage provides a friendly, well-maintained, and accessible option in the Thornton community.

Listing Type : Self storage facility
Location : Colorado / Thornton
Contact Phone : +1303-255-1920
Opening Hours :
Monday07:30 - 16:00
Tuesday07:30 - 16:00
Wednesday07:30 - 16:00
Thursday07:30 - 16:00
Friday07:30 - 16:00
Saturday07:30 - 16:00
Sunday07:30 - 12:00
Listing Type : Self storage facility
Location : Colorado / Thornton
Contact Phone : +1303-255-1920
Thornton Self Storage
Features
  • Self storage facility serving home owners and business owners in Thornton, Colorado.
  • Offers month-to-month leases for storage units.
  • Storage units include regular and garage doors.
  • Climate controlled units available.
  • Units and aisles are easily accessible.
  • Security features include electronic access, 24 hour CCTV security cameras, individually alarmed units, and cylinder locks.
  • No security deposits required for rental.
  • Insurance is accepted for stored items.
  • Major credit and debit cards accepted for payment.
  • Optional automatic payment system available.
  • Additional services and extras include U-Haul truck and trailer rentals (both in town and one way), and a supply and gift shop.
  • Leasing process takes no more than 20 minutes and customers can move in immediately the same day.
  • Units and grounds are regularly maintained and cleaned by staff.
  • Office hours: Monday to Saturday 8:30 AM – 5:00 PM, Sunday 8:30 AM – 1:00 PM.
  • Gate access hours: Monday to Saturday 6:00 AM – 9:00 PM, Sunday and holidays 9:00 AM – 6:00 PM.
  • Location address: 3685 E. 121st Ave., Thornton, CO 80241 (near 121st Ave & Colorado Blvd).
  • Contact phone number: 303-255-1920.
  • Website has links to check rates, availability, and to contact the facility.
Reviews
4.1
Total Score 36 REVIEWS
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