Extra Space Storage - 21121 NW Service Road, Warrenton, MO 63383

4.9/5 - 286 Reviews
Location:
21121 NW Service Road, Warrenton, MO 63383
Office hours:
  • Mon-Fri: 9:30 a.m. - 6 p.m.
  • Sat: 9 a.m. - 5:30 p.m.

Extra Space Storage - 21121 NW Service Road, Warrenton, MO 63383

  • Climate-Controlled

    Protect belongings from temperature changes and humidity

  • Indoor

    Units are located indoors for added protection and convenience

  • Drive-Up Access

    Drive directly up to your unit for easy loading and unloading

    Not sure which size you need? Check our size guide to find the perfect fit.
    10x5 Self Storage 50 Sq. Ft.
    Climate-Controlled
    $105/mo
    5x15 Self Storage 75 Sq. Ft.
    $82/mo
    5x12 Self Storage 60 Sq. Ft.
    $65/mo
    5x10 Self Storage 50 Sq. Ft.
    Climate-Controlled
    $105/mo
    5x10 Self Storage 50 Sq. Ft.
    $59/mo
    5x5 Self Storage 25 Sq. Ft.
    Climate-Controlled
    $62/mo
    10x18 Self Storage 180 Sq. Ft.
    $160/mo
    10x15 Self Storage 150 Sq. Ft.
    Climate-Controlled
    $186/mo
    10x15 Self Storage 150 Sq. Ft.
    $144/mo
    10x12 Self Storage 120 Sq. Ft.
    $124/mo
    10x10 Self Storage 100 Sq. Ft.
    Climate-Controlled
    $141/mo
    10x10 Self Storage 100 Sq. Ft.
    $111/mo
    15x50 Self Storage 750 Sq. Ft.
    $561/mo
    15x25 Self Storage 375 Sq. Ft.
    Climate-Controlled
    $377/mo
    15x20 Self Storage 300 Sq. Ft.
    Climate-Controlled
    $319/mo
    15x15 Self Storage 225 Sq. Ft.
    Climate-Controlled
    $257/mo
    10x45 Self Storage 450 Sq. Ft.
    $367/mo
    10x40 Self Storage 400 Sq. Ft.
    Climate-Controlled
    $503/mo
    10x35 Self Storage 350 Sq. Ft.
    $304/mo
    10x30 Vehicle 300 Sq. Ft.
    Drive-up Access Parking RV Storage
    $261/mo
    10x30 Self Storage 300 Sq. Ft.
    $261/mo
    10x25 Self Storage 250 Sq. Ft.
    Climate-Controlled
    $277/mo
    10x25 Vehicle 250 Sq. Ft.
    Drive-up Access Parking RV Storage
    $234/mo
    10x20 Self Storage 200 Sq. Ft.
    Climate-Controlled
    $240/mo
    10x20 Vehicle 200 Sq. Ft.
    Car Storage Parking
    $93 - $183/mo
    No units are currently available.

    Amenities & features

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    • Contactless Renting
    • Security Camera
    • Gate
    • Parking
    • Credit Cards Accepted
    • Multi-Level Storage
    • Online Payment
    • RV Storage

    Customer reviews

    4.9/5
    Average rating
    286
    Number of reviews

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

    Ashlee H. - 25 February 2026
    Todd H. - 23 January 2026
    Nancy “. - 10 October 2025
    PROFESSIONAL/ TIMELY/ CONSIDERATE! The Warrenton team for Extra Space Storage is exceptional! Their customer service has always been notable, but their ability and willingness to navigate technical issues went above and beyond. When your family is counting on maintaining a safe environment for their memories & household belongings, the location you choose to store them can make or break the future. Thank you to everyone at Extra Space Storage (all 3 sites) for troubleshooting with me, to reach the desired outcome. John, Dawn, and Nicole- my family is forever grateful ?? . ... Read more
    Tegin H. - 18 July 2025
    I went in to get some information about storage options and had a great experience. The store manager was friendly, knowledgeable, and took the time to explain everything clearly. They made the whole process easy and stress-free. Highly recommend if you're looking for great customer service and helpful staff! ... Read more
    Sarah c. - 26 June 2025
    Brandon G. - 14 June 2025
    Nathan D. - 9 April 2025
    kahisha - 2 September 2024

    About this facility

    Located just off I-70 at 21121 NW Service Road, this Extra Space Storage facility in Warrenton, MO, offers a variety of unit sizes, including small, medium, and large, to cater to diverse storage needs. Whether you're downsizing, decluttering, or need extra space for seasonal items, this facility ensures versatile options for residents and businesses in the area.

    Designed with convenience and protection in mind, this Extra Space Storage facility features climate-controlled units to safeguard sensitive items from Missouri's fluctuating weather. The property also provides drive-up access and indoor storage, making it easy to load and unload your belongings regardless of the season. For those with larger storage needs, the facility offers parking and RV storage, ideal for vehicles and recreational equipment. Security is a top priority, with security cameras, gated access, and an onsite manager providing peace of mind.

    For added convenience, this facility supports modern rental options such as contactless renting and online payment, with moving supplies available for purchase on-site. With its secure, accessible, and feature-rich storage options, this Extra Space Storage facility is a practical choice for both homeowners and businesses in the Warrenton area.

    Price comparison

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

    Small $80/mo
    Location minimum Location maximum
    $33/mo $105/mo
    Medium $144/mo
    Location minimum Location maximum
    $67/mo $186/mo
    Large $312/mo
    Location minimum Location maximum
    $40/mo $561/mo

    Location & walkability

    This storage facility is in an area with minimal walkability and limited public transit options. A personal vehicle is recommended for most trips.

    15

    out of 100

    Walk Score

    Car-Dependent

    Almost all errands require a car

    26

    out of 100

    Bike Score

    Somewhat Bikeable

    Minimal bike infrastructure

    Walk Score®: 15, Bike Score®: 26

    Neighborhood highlights

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

    • Denny's

      Food & Drinks 0.55 miles

    • Baymont Warrenton

      Services 0.6 miles

    • The Hideout

      Food & Drinks 0.74 miles

    • Schnucks

      Grocery Stores 0.8 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.

    Climate-controlled storage units maintain consistent temperature and humidity levels, helping protect items from damage caused by heat, cold, or excess moisture.

    You may want climate control if you’re storing items that can be sensitive to temperature changes, such as furniture, clothing, appliances, paperwork, photographs, artwork, electronics, or wood and leather goods. These units are especially useful for long-term storage or in areas with hot summers, cold winters, or high humidity.

    If you’re storing durable items like tools or outdoor gear, a standard unit may be sufficient. When in doubt, climate control offers added protection and peace of mind.

    The facility at 21121 NW Service Road is accessible during regular access hours, typically Mon-Fri: 9:30 a.m. - 6 p.m., Sat: 9 a.m. - 5:30 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 Extra Space Storage - 21121 NW Service Road, 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 21121 NW Service Road for specific restrictions and recommendations.

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