Extra Space Storage

4.8
572 reviews
Extra Space Storage

About

Self-Storage FacilityPublic StorageMoving Supply StoreRecords Storage FacilityAutomobile Storage Facility
Store your belongings at Extra Space Storage on 3939 Castro Valley Blvd in Castro Valley, CA today! Our large selection of storage units, drive up access, drive up units, all-hours access, climate controlled units, electronic gate access, manager living on site, exceptional security, deliveries accepted, non climate controlled units available, parking spaces, elevator access, personal access hour, kiosk, wide drive isles, vehicles are allowed in drive-up units, commercial tenants, solar site, convenient freeway access 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
3939 Castro Valley Blvd, Castro Valley, CA
94546, United States

Hours

Reviews

4.8
572 reviews
5 stars
520
4 stars
28
3 stars
5
2 stars
4
1 star
15

What are people saying?

AI-generated from recent customer reviews

Customer Service

Staff members, particularly Dan and Stephan, received high praise for their helpfulness, professionalism, and friendliness.

Cleanliness

The facility is consistently described as clean, well-maintained, and secure.

Pricing Concerns

Several customers expressed dissatisfaction with sudden price increases and perceived corporate greed.

Security Issues

There were reports of break-ins and concerns about the safety of stored items, leading to mixed feelings about security.
  • AF
    Arcadio Fraticelli
    4 days ago
    5.0
    Dan is the man! Thanks for the help!
  • RH
    Renato Herico
    Jan 1, 2026
    5.0
    Dan has been a tremendous help to me and if it wasn't for him I wouldn't have been with the storage as long as I have. He's been extremely accommodating very very helpful and the storage units were always very clean and stellar. Everything was always immaculate when I was going to try to check out my storage and I want to thank you all for hiring that man. I believe that he should own his own and if not be given a major major raise and that he's a valued v person for the storage unit company and also I'm so grateful for all of his personal help and his help with me through my transitioning thank you so much take care happy New Year Dan healthy and happy and prosperous for you and your family.
  • VM
    Veronica Medina
    Dec 26, 2025
    5.0
    Stephen was such a nice and helpful guy!
  • LO
    Laura Olsen
    Dec 19, 2025
    5.0
    Amazing service! Thank you Dan for everything you did for me!
  • GA
    Gio Alvaarez
    Dec 19, 2025
    5.0
    Dan is the best manager that ever existed!!

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.