CoolBox Self Storage – Caldwell Mill

CoolBox Self Storage has two conveniently located storage facilities in Birmingham. Our Caldwell Mill facility is climate controlled and has three oversized elevators, flatbed carts, color-coded hallways, and so much more. Find the facility nearest you to start storing today!

Unit Sizes

Storage Made Simple

CoolBox Self Storage is high-end, affordable storage. We offer pristine climate-controlled storage in a variety of sizes. We are a locally owned and operated business that provides exceptional customer service. We believe in giving back and serving in our communities, as they have supported us so graciously. Our storage units come in multiple sizes so whether you need to store a few items or an entire household, we have you covered. Not sure what size fits you best? Reach out and we will be happy to help you!

5 x 5

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $29

10 x 5

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $79

10 x 10

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $137

10 x 12

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $179

10 x 15

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $199

10 x 20

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $325

10 x 25

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $339

10 x 30

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $439

20 x 15

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $378

20 x 20

All of our units are accessible daily between 6:00 am and 10:00 pm and can be rented immediately online with our booking system. If you don’t see the size you’re looking for, contact us and we will get you on our waiting list.

Starting at $418

Convenient Self Storage

Discover the Difference

At CoolBox Self Storage, we pride ourselves on providing great customer service. Our team is always available to answer any questions and help make your storage experience as easy as possible with three oversized elevators, flatbed carts, boxes, packing supplies, and access to the facility with the Easy Code app. We also have cold bottled water and a coffee bar, clean restrooms, and more:

24/7 Video Recording

Our digital video recording keeps an eye on the facility so you can feel confident storing your belongings with us.

100% Climate Controlled

Our climate-controlled self storage protects your items from extreme temperatures and humidity.

Oversized Elevators

We have oversized elevators and flatbed carts to make moving in and out easy.

Gated Facility

Our storage facilities are gated and have individual access codes for our tenants so only authorized people are on site.

Daily Unit Access

Access your unit daily between the hours of 6am – 10pm, year-round, even on holidays.

Competitive Rates

We have storage units that fit every budget without sacrificing quality!

Easy Online Rental

Choose CoolBox Self Storage at our Caldwell Mill or Liberty Park location for an easy and convenient storage solution. Reserve your unit online today and experience the difference that comes with storing your belongings with us.

Reviews

What our Customers Say

Discover why our customers love storing with CoolBox Self Storage

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Our experience with Coolbox Self Storage over the past two years has been excellent. The team at Coolbox is wonderful to work with, the facility is very safe, kept impeccably clean.
Russell
Posted on Google
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CoolBox storage is not only up to date but the service is absolutely incredible. There are a number of additional amenities including extra large dollies to move things in and out. There are large elevators and security is great with codes needed to get on property and in buildings. Customer service is the best. I have had only pleasant service with every single employee!
Sarah Henderson
Posted on Google
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Highly recommended! Nice, CLEAN, new facility with easy access anytime. Rates are competitive. Stacey goes above and beyond to help with anything you might need. When we were moving out, we thought we might have a few things left over that we would retrieve at a later date, and she offered to let us move them to a smaller unit and adjust the rent accordingly. We ended up not needing to do that, but when we moved out our final month was prorated, which saved us quite a bit. She also picked up some boxes for me from their other location and brought them to the Overton store, which saved me a few dollars and some time and miles compared to buying the same type of box at a hardware store. I had an excellent experience overall; great people to work with!
David Breland
Posted on Google

Visit Us

Our Locations

Both of our facilities are climate-controlled and have three oversized elevators, flatbed carts, boxes, packing supplies, and access to the facility with the Easy Code app. We also have cold bottled water and a coffee bar, clean restrooms, and more. Find the facility nearest you to start storing today!