Extra Space Storage - 21892 Cobalt Avenue, Caldwell, ID 83605

4.8/5 - 315 Reviews
Location:
21892 Cobalt Avenue, Caldwell, ID 83605
Office hours:
  • Mon-Fri: 9:30 a.m. - 6 p.m.
  • Sat: 9 a.m. - 5:30 p.m.

Extra Space Storage - 21892 Cobalt Avenue, Caldwell, ID 83605

  • Indoor

    Units are located indoors for added protection and convenience

  • 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

    Not sure which size you need? Check our size guide to find the perfect fit.
    5x12 Self Storage 60 Sq. Ft.
    $79/mo
    5x10 Self Storage 50 Sq. Ft.
    $67/mo
    10x15 Self Storage 150 Sq. Ft.
    $150/mo
    10x12 Self Storage 120 Sq. Ft.
    $128/mo
    10x10 Self Storage 100 Sq. Ft.
    $113/mo
    8x15 Vehicle 120 Sq. Ft.
    Car Storage Parking
    $102/mo
    30x15 Self Storage 450 Sq. Ft.
    $326/mo
    24x30 Self Storage 720 Sq. Ft.
    $437/mo
    20x40 Vehicle 800 Sq. Ft.
    Parking RV Storage
    $361/mo
    20x15 Self Storage 300 Sq. Ft.
    $265/mo
    12x40 Vehicle 480 Sq. Ft.
    Parking RV Storage
    $253/mo
    12x30 Vehicle 360 Sq. Ft.
    Drive-up Access Parking RV Storage
    $291/mo
    12x25 Vehicle 300 Sq. Ft.
    Drive-up Access Parking RV Storage
    $265/mo
    10x40 Vehicle 400 Sq. Ft.
    Parking RV Storage
    $222/mo
    10x30 Vehicle 300 Sq. Ft.
    Drive-up Access Parking RV Storage
    $265/mo
    10x25 Vehicle 250 Sq. Ft.
    Drive-up Access Parking RV Storage
    $227/mo
    10x20 Vehicle 200 Sq. Ft.
    Car Storage Drive-up Access Parking
    $192/mo
    8x25 Vehicle 200 Sq. Ft.
    Car Storage Parking
    $102/mo
    No units are currently available.

    Amenities & features

    • Indoor
    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    • Contactless Renting
    • Security Camera
    • Gate
    • Parking
    • Keyless Unit Access
    • Online Payment
    • RV Storage

    Customer reviews

    4.8/5
    Average rating
    315
    Number of reviews

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

    I needed a place to store some things as we were relocating from out of state. The whole process was simple to set up and I had it reserved in a matter of minutes! Super clean and easily accessible. Highly recommend! ... Read more
    Kent U. - 19 June 2026
    I was SO pleased with Chelsea’s customer service. She made the experience personalized and felt like I was one of the only customers there! I recommend storing here to anyone that needs a storage unit! ... Read more
    Cheyenne D. - 5 March 2026
    I am extremely happy with the front desk receptionist, Chelsea at the Middleton storage. She was extremely patient and understanding when I had things going on. Her customer service skills are 10/10 in my opinion. She is extremely sweet and she was super helpful with my dad as well. Would definitely recommend them for a storage place. ... Read more
    Meghan S. - 11 February 2026
    Chelsea always went above and beyond, no matter the situation. She was ALWAYS cheerful, helpful and cordial. I had several constraints at the time I rented a unit there. Chelsea always managed to mitigate any potential stress I was having from a financial/payment standpoint and worked diligently with me to provide options and support. I rarely come across the level of customer service that Chelsea provides anymore and when I did experience quality service in the past, it would rarely repeat 24/7 quite like the way she has always provided. Thank you Chelsea!! ... Read more
    Michael T. - 1 February 2026
    Chelsea has been such a sweetheart and one of the best people i’ve ever worked with. she always has a smile and always helps me out when there’s a problem. it’s always a great pleasure working with her and she always has amazing customer service. She always goes above and beyond doing her job and i really appreciate her every single time i speak to her. ... Read more
    Stacey A. - 26 November 2025
    Reserved online the morning of and the units were ready when we got there. The facility is and service was outstanding. We had some unknown as far as when we would move out and they were upfront, but flexible. I will look to use them again if I ever need to. ... Read more
    Ryan H. - 3 October 2025
    I toured this facility and was very surprised with the upkeep, friendliness of staff, and all around quality of customer service. All my questions were answered and i was made to feel like my needs mattered! Could not be happier with my experience at this location. Would highly recommend others looking for storage to give this place a chance! ... Read more
    Darren R. - 1 October 2025
    Frank C. - 23 August 2025
    Moving is never easy. Extra Space Storage took some of the sting out of it. The staff is very friendly and professional. Billing, payment and access to the locker was seamless. All in all a wonderful experience. I’d do it again in a heartbeat. ... Read more
    lesscash - 31 July 2025
    I can't say enough good things about this place. Chelsea and her team are top notch. The place is clean and secure. You won't find a better storage facility anywhere. Thanks for all your help. If I ever need to store anything again, it will definitely be there! ... Read more
    Mike L. - 28 July 2025
    I recently rented storage space at the Caldwell ID property. I had specific needs, and Chelsea was phenomenal in communicating with me and finding the right space. When I finally arrived, the entire staff was so friendly and helpful. I couldn’t be more pleased with the excellent customer service and cleanliness of Extra Space! Thanks for a great experience. ... Read more
    Cindy P. - 8 April 2025
    Omg! I even asked the ladies if they were from Middleton being a small time kindness and generosity given out. What a breath of fresh air I absolutely love this place if Anyone is checking reviews doing comparison this is a place that you can trust. They will work with you if there’s an issue with your account.. It just felt so “home” Thanks, ladies!! Just kindness and appreciate a human being coming through the door and not as a number To fit the Business quota. God bless Rhonda ... Read more
    Rhonda M. - 5 April 2025
    Really great service. I had reserved a unit in advance and then came by to check it out in person before purchase. They were running an online special at the time but when I finally got around to putting money down, the price had risen. Even so, I still received my rate that I had referenced when I first reserved the unit over the phone. Staff was friendly and explained everything very well. I’m happy with my choice! ... Read more
    Aliya B. - 12 March 2025
    Having multiple storage units in various states, the Extra Space Storage unit in Middleton, ID, is by far the easiest to work with. I am physically in Idaho only a few months of the year, yet I never worry about the items I have stored there. The property is well taken care of by the manager, Chelsea. They are easy to get in touch with and go above and beyond in the customer service department. I wish all the storage facilities I use were as reliable and accommodating as the Extra Space Storage in Middleton. ... Read more
    Liz O. - 4 March 2025
    If I could give no stars, I would. This place is absolutely horrible and anyone who stores their assets under the covered shelter is at SIGNIFICANT risk of having them stolen, like I experienced. My ATV and trailer were stolen out of the facility within the past day or two. Fortunately, it was found north of Middleton but it was damaged. I called them and they said "sorry, we're not liable for damage." Actually, that's not true when they're negligent - they have a duty to provide a secure storage facility and they don't. The damage to the property occurred after it was stolen. But the attorney I'm hiring will sort that out. When I got there today, there was a sign saying they're closed for the day, yet the man door right next to the big gate was left open. WHY DO YOU EVEN HAVE A MAN DOOR THERE IN THE FIRST PLACE??? When I took my ATV back over there on 2/18, it was before hours and the big gate was just standing open. I called them to alert them to that security risk and the response was "yeah, when it's foggy the sensor just thinks something is in the way so the gate stays open." They continue to be negligent in protecting their customers' property. I hope the cops can identify the vehicle through the security footage and I fully intend on pressing charges. I'm also going to ensure that Extra Space Storage is held accountable. If you have stuff there or are considering them, you've been warned. ... Read more
    Brian H. - 27 February 2025

    About this facility

    Located at 21892 Cobalt Avenue in Caldwell, Idaho, this Extra Space Storage facility offers a range of unit sizes, including small, medium, and large, to accommodate various storage needs. Whether you're decluttering your home, relocating, or need extra space for business inventory, this facility provides convenient solutions tailored to your needs.

    With features like drive-up access and indoor units, loading and unloading your belongings is simple and efficient. The facility also prioritizes security with security cameras, gated access, and keyless unit access, offering peace of mind for tenants. For those needing oversized vehicle storage, parking and RV storage options are available, a convenient perk for Caldwell residents who enjoy exploring Idaho's scenic outdoors. An onsite manager further ensures customer support is always nearby.

    This facility also embraces modern convenience with contactless renting and online payment options, making the process quick and hassle-free. The availability of moving supplies in the retail section adds an extra level of convenience. This Extra Space Storage location is ideal for anyone seeking secure, flexible, and easily accessible storage solutions in the Caldwell area.

    Price comparison

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

    Small $73/mo
    Location minimum Location maximum
    $33/mo $125/mo
    Medium $123/mo
    Location minimum Location maximum
    $59/mo $150/mo
    Large $267/mo
    Location minimum Location maximum
    $44/mo $437/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.

    2

    out of 100

    Walk Score

    Car-Dependent

    Almost all errands require a car

    29

    out of 100

    Bike Score

    Somewhat Bikeable

    Minimal bike infrastructure

    Walk Score®: 2, Bike Score®: 29

    Neighborhood highlights

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

    • Pioneer Federal Credit Union

      Services 0.75 miles

    • Poppi's Take 'N' Bake Pizza

      Food & Drinks 0.78 miles

    • Middleton Espresso

      Food & Drinks 0.78 miles

    • Casa Mexico

      Food & Drinks 0.79 miles

    • Middleton Law

      Services 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.

    The facility at 21892 Cobalt Avenue 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 - 21892 Cobalt 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 21892 Cobalt Avenue for specific restrictions and recommendations.

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