Extra Space Storage

4.8
822 reviews
Extra Space Storage

About

Self-Storage FacilityPublic StorageMoving Supply StoreRecords Storage Facility
Store your belongings at Extra Space Storage on 900 Grant St in Denver, CO today! Our large selection of storage units, climate controlled units, manager living on site, exceptional security, parking spaces, elevator access, commercial tenants, retail space available and helpful staff make finding the right self storage unit for you easy and hassle-free. Experience the professionalism, cleanliness, and commitment to exceptional customer service that Extra Space Storage is known for. Contact us today to reserve your storage unit or set up a time to stop by and take a tour of our facility!

Details

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Location

Extra Space Storage
900 Grant St, Denver, CO
80203, United States

Hours

Reviews

4.8
822 reviews
5 stars
763
4 stars
25
3 stars
6
2 stars
10
1 star
18

What are people saying?

AI-generated from recent customer reviews

Customer Service

Staff, particularly Alison and Zen'dai, received high praise for their helpfulness, friendliness, and responsiveness, making the moving and renting process easy and stress-free.

Cleanliness and Safety

The facility is consistently noted as clean and secure, contributing to a positive overall experience for customers.

Maintenance Issues

Some customers reported ongoing maintenance issues, such as broken lights and limited availability of moving carts, which detracted from their experience.

Pricing Concerns

While many customers appreciated the pricing and promotional offers, there were complaints about frequent price increases.

Overall Experience

The majority of reviews reflect a highly positive experience, with many customers recommending the facility for its excellent service and supportive staff.
  • MS
    Mark Salsberry
    1 day ago
    5.0
    The staff is polite, friendly and very helpful. Allison helped us on several occasions and made everything so easy for us!
  • BT
    Ben Tillisch
    Nov 13, 2025
    5.0
    I’ve been using Extra Space Storage for work for the past four years and they’ve been absolutely fantastic. The facility is always clean, secure, and easy to access. I really appreciate that I can have packages delivered directly to my unit — it makes my work life so much easier. The manager, Allison, is always super friendly and helpful, and goes above and beyond to make things run smoothly. Highly recommend!
  • TN
    Torrie (The PTO Networker)
    Nov 12, 2025
    5.0
    Allison and Astro are amazing! Update: My unit was broken into a couple of weeks ago but the staff didn't know since the thieves didn't actually break the glass doors to get in. Allison has been very helpful in the process of filing police reports and working with the police to figure out who the thieves were that broke in. Thank you all for great customer service and providing a clean location for storage. Out of the 3 years that I've been here, outside of the recent robbery, we've never had any issues with any uncleanliness and any issues are fixed immediately. Bonus points: They have a big parking lot. Of course there can be a price hike, but in Downtown Denver it is expected. I am sure the city is constantly raising the price of the building's property tax, same with renting an apartment. Added photos of break in. If you haven't checked on your unit in a while, be sure to do so soon!
  • KM
    Korey Michelle
    Oct 31, 2025
    5.0
    I was renting at Public Storage on Fox street and made several complaints about a rodent problem. So in my search I went to the ESS location on Grant Street and Evette and Allison talked me through their policies and showed me the facility. They were very helpful and knowledgeable ! 10/10 service
  • SW
    Savannah Wahaus
    Oct 23, 2025
    2.0
    I’ve mentioned multiple times that the lights above my storage unit are out, and after several weeks they still haven’t been fixed. The app that’s supposed to open the doors consistently opens the wrong side of the building, which is frustrating when you’re hauling things in or out. On top of that, there are only three moving carts available, and they’re almost always in use. The facility itself is decent and feels secure, but the lack of maintenance and attention to customer issues really brings the experience down.

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.