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!
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!
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 Castro Valley, Fairview, Ashland, and Cherryland.
What is the closest intersection to Extra Space Storage?
Extra Space Storage is located on Castro Valley Blvd between Bonnie Ln and I-580.
Is Extra Space Storage close to any colleges?
Extra Space Storage is about 4 miles from California State University East Bay, making us a great option for college students who need affordable storage during summer break or while studying abroad.
Do you offer climate-controlled storage units?
Most Extra Space Storage facilities offer climate-controlled storage units as an option for anyone storing temperature sensitive items, but there are also standard storage units that don’t include climate control.
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.
What are the operating hours of Extra Space Storage in Castro Valley?
Extra Space Storage is open daily from 6:00 AM to 10:00 PM, including weekends.
Does Extra Space Storage offer climate-controlled units?
Yes, they offer climate-controlled storage units for temperature-sensitive items, along with standard non-climate controlled units.
Can I access my storage unit outside of office hours?
Yes, gate access is available daily from 6:00 AM to 10:00 PM, allowing you to access your unit even when the office is closed.
What types of payment methods are accepted?
Extra Space Storage accepts American Express, Apple Pay, cash, check, Discover, invoice, Mastercard, and Visa.
Does Extra Space Storage provide moving and packing supplies?
Yes, they offer a variety of moving and packing supplies including boxes, available both online and at the facility.
Are there any special promotions for renting storage units?
Yes, you can rent online today to get up to 40% off storage.
Where is Extra Space Storage located in Castro Valley?
It is located at 3939 Castro Valley Blvd, between Bonnie Ln and I-580 in Castro Valley, CA 94546.
Is Extra Space Storage near any colleges?
Yes, it is about 4 miles from California State University East Bay, which is convenient for students needing storage during breaks or study abroad.
What nearby establishments can I visit close to Extra Space Storage?
Close to Extra Space Storage, you can visit The Burrito Shop for Mexican food, Rite Aid for pharmacy needs, and Castro Valley Creek Park for outdoor activities.
How can nearby automotive services help customers of Extra Space Storage?
Customers can conveniently access automotive services nearby such as Boulevard Auto or SpeeDee Oil Change & Auto Service for vehicle repairs or maintenance while using Extra Space Storage.