Extra Space Storage sets the standard for clean, secure, and hassle-free self storage, and our facility at 21892 Cobalt Ave is no exception. Our Caldwell storage facility offers a large selection of unit sizes with convenient options like drive-up access and vehicle storage. Located near Middleton Rd and Bass Ln, we're trusted by neighbors in Middleton, Fischer, Moss, Weitz, and other surrounding areas. Whether you're moving, downsizing, or decluttering, we're here to make finding the right storage unit quick and simple. Reserve online, give us a call, or stop by the facility today.
Explore offerings from Extra Space Storage on 21892 Cobalt Ave in Caldwell, with popular services available at this location.
7818 Services
11 items
Services
Self Storage
Extra Space Storage offers a wide range of secure self storage solutions for residential and commercial needs. Our storage units are rented on a month-to-month basis and come in a variety of sizes from 5x5 to 10x30 (with additional sizing available).
Online Payments
Extra Space Storage makes it easy to pay your storage rental bill online. Simply log into your account to access statements, make a payment, and more. You can make one-time online payments or even set up recurring payments.
Packing & Moving Supplies
Extra Space Storage sells packing and moving supplies like boxes, bubble wrap, packing tape, rope, moving kits, and more. We have all of the moving supplies you need for a successful move!
Drive Up Access
Drive-up access units at Extra Space Storage allow you to pull your vehicle directly next to your storage unit to easily load and unload items. Some locations even allow drive-up units to be used for vehicle storage for cars, motorcycles, and more.
Electronic Gate Access
Extra Space Storage facilities with electronic gate access have a main gate or door that can only be opened with a code entered on an electronic keypad. Each customer is given a unique access code, allowing managers to see who's coming and going at all times.
Covered Parking
Select Extra Space Storage facilities offer covered outdoor parking spaces that can help protect vehicles from precipitation and sun damage.
Package Placement
Extra Space Storage facilities can accept package deliveries on behalf of customers. For more information about package acceptance and placement, contact our team!
Deliveries Accepted
Some Extra Space Storage locations allow deliveries to be accepted. With delivery acceptance, a staff member will be available to accept your mail and keep it in a secure place until you pick it up.
RV Parking
Depending on the facility, Extra Space Storage offers indoor, outdoor, or covered RV parking. Outdoor parking is the most common option for RV storage, with units ranging from 8x20 to 8x40 (and sometimes larger)!
Military Discount
Members of the military can receive a military discount at some of our Extra Space Storage locations. Contact us today to learn more!
Wide Drive Aisles
Wide-drive aisles provide plenty of space for larger vehicles and moving trucks to get in and out of Extra Space Storage when accessing outdoor and drive-up storage units.
Reviews
4.8
314 reviews
5 stars
289
4 stars
11
3 stars1
2 stars
5
1 star
8
PH
Patrick Hoadley
Jun 30, 2026
5.0
The process was quick and easy. The staff was relaxed,fun,and professional.
TD
Teri Denny
Jun 25, 2026
5.0
Chelsea was always so accommodating and very nice! She does her job well! Would definitely rent a storage unit in Middleton.
KU
Kent Umberger
Jun 19, 2026
5.0
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!
JS
Justin Sands
Jun 18, 2026
5.0
Ruth stayed past office hours to collect a cash payment from me. This was a true act of kindness and another level of hospitality that is rare now a days. Im amazed by this act. When I made it to the office she was so friendly and jist an amazing human. Shout out to her! Ruth! But great work extra space on hiring and being so amazing to your clients and guests.
KD
Kendel DeBlieck
Jun 11, 2026
5.0
From Lee helping us with reservations to Chelsea assisting us in site was amazing. The front desk gal was great as well. We would highly recommend them.😀
Frequently Asked Questions About Extra Space Storage
What storage unit size do I need?
The best way to determine which storage option is right for you is with our helpful Storage Unit Size Guide! It will help you estimate how many boxes and non-packed items, such as furniture and appliances, you can fit into each storage unit.
What type of storage unit do I need?
Many factors determine your best storage solution. Do you want the convenience of a ground-floor unit? Do your belongings need climate control? What about vehicle storage? We have online resources to help you explore these options to find your ideal storage unit.
What are your storage unit prices?
Monthly rates can be found online and vary by facility, unit size, features, and local market. Please use our site search tools to find pricing at a facility near you.
What's the difference between office, access, and gate hours?
The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.
Can I buy boxes or other packing products from Extra Space Storage?
Extra Space Storage offers a variety of moving and packing supplies online and at local facilities for purchase.
What areas does Extra Space Storage serve?
Extra Space Storage serves residents of Caldwell, Middleton, Fischer, Moss, Weitz, and more.
What is the closest intersection to Extra Space Storage?
Extra Space Storage is located near the intersection of Middleton Rd and Bass Ln.
Do you offer car storage solutions?
Yes, self storage is a great option for both short-term and long-term car storage! We offer indoor storage, outdoor storage, and even covered vehicle storage space for cars.
Do you have drive-up storage units?
Yes! Whether you’re moving, storing a vehicle, or using commercial storage, drive-up access is one of the best storage features available at Extra Space Storage! Because you can pull a vehicle right up to your unit, it makes moving large, heavy items—like furniture or equipment—in and out of your unit much easier.
Do you offer RV storage solutions?
Yes! At Extra Space Storage we offer outdoor parking, covered parking, and indoor storage solutions for RVs of all sizes. Whether you’re leaving an RV in storage long term or simply need a place to park an RV between uses, we offer a flexible option with month-to-month leases so you can store for as long as you need.
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