Public Storage - 21035 East Washington Avenue, Diamond Bar, CA 91789

4.8/5 - 403 Reviews
Location:
21035 East Washington Avenue, Diamond Bar, CA 91789
Office hours:
  • Mon-Fri: 9:30 a.m. - 6 p.m.
  • Sat-Sun: 9:30 a.m. - 5 p.m.

Public Storage - 21035 East Washington Avenue, Diamond Bar, CA 91789

  • Indoor

    Units are located indoors for added protection and convenience

  • Drive-Up Access

    Drive directly up to your unit for easy loading and unloading

  • Retail Available

    Moving and packing supplies available for purchase on-site

    Not sure which size you need? Check our size guide to find the perfect fit.
    5x10 Self Storage 50 Sq. Ft.
    Elevator Access Swing
    $153 - $172/mo
    4x9 Self Storage 36 Sq. Ft.
    Elevator Access Roll-Up First Floor Access
    $140/mo
    10x15 Self Storage 150 Sq. Ft.
    Elevator Access Swing
    $310/mo
    10x15 Vehicle 150 Sq. Ft.
    Car Storage Drive-up Access Outdoor Access Parking
    $95/mo
    10x10 Self Storage 100 Sq. Ft.
    Elevator Access Swing
    $239 - $246/mo
    15x20 Vehicle 300 Sq. Ft.
    Roll-Up Drive-up Access Outdoor Access Parking RV Storage
    $651/mo
    12x30 Vehicle 360 Sq. Ft.
    Boat Storage Roll-Up Drive-up Access Outdoor Access Parking RV Storage
    $620/mo
    No units are currently available.

    Amenities & features

    • Indoor
    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    • Contactless Renting
    • Security Camera
    • Gate
    • Parking
    • Credit Cards Accepted
    • Elevators
    • First Floor Access
    • Multi-Level Storage
    • Online Payment
    • RV Storage

    Customer reviews

    4.8/5
    Average rating
    403
    Number of reviews

    Read some helpful reviews of Public Storage, shared by real renters with genuine experiences and honest opinions.

    JESSON - 2 July 2026
    I had a great experience at Public Storage. The facility is clean, well-maintained, and feels secure. Adrian was very helpful and made the whole process quick and easy. He explained pricing clearly and answered all my questions. Definitely recommend if you’re looking for affordable and reliable storage! ... Read more
    Kidd C. - 27 February 2026
    Adrian was very helpful throughout the whole process. He was very professional and helped troubleshoot any issues I was having. He made the process very smooth and made me feel my item would be good hands. 10/10 would recommend! ... Read more
    Angie H. - 11 January 2026
    Had the most positive experience these past few days and made me feel like I was in a safe space. I would like to thank Adrian for making me feel safe and attending to all my needs and questions. This is the first time I rent out a storage and I had no clue how to manage one. Adrian explained step by step and was very detail oriented. Without his knowledge and assistance I would of been lost. Thank you Adrian for being a big help !! Wish there was more people like you in the world !! You made me feel safe !! ... Read more
    Fabiola N. - 24 October 2025
    I wish I could give it 0 stars because that would better describe my multiple experiences with this location. FIRST: There is never anyone on site despite the office hours listed on website and on listing. At least two days each week there isnt anyone at this location even though ADRIAN lives above the office. When you call on those days and are forced to leave a message you then do not receive a response for 48+ hours. The app they force you to download never works to open/close the gate and they are never in the office, so how does one make anything work. You call corporate and they have absolutley no idea what is going on at each location. The whole system including monthly rates changing wihtout notice is terrible. When you do finally speak with someone, they never seem to know what is going on which is surprising to see ADRIAN receive such praise in the other reviews. ADRIAN is about as good at his job as the app functions properly. ... Read more
    Lisa D. - 21 October 2025
    Real cool experience. The coolest part is you can open gate with phone. No need to input code. I give them 4 stars. Both employees are super cool & very helpful. I would recommend this public storage to all my family & friends. ???? ... Read more
    D.A M. - 1 October 2025
    Peter P. - 28 September 2025
    Adrian was so nice and helpful. He was willing to show me around and give me more information than I thought I needed. I’ve been to 3 locations and I’m really surprised that each front desk person I’ve talked to is so polite and respectful but makes me feel comfortable at the same time. I’ve also called on the phone for customer service at Public Storage and I must say their customer service is spectacular beyond any company, no matter who I talk to. ... Read more
    Holly H. - 7 August 2025
    Adrian was extremely helpful and professional. He clearly explained everything I needed to know and gave me a quick, informative tour. The whole process was smooth and efficient thanks to him. A true professional — highly recommended. I've got a parking lot for the car. ... Read more
    Danil T. - 31 May 2025
    Adrian is a great manager there. He is very diligent in maintaining the facility clean and is always on top of things. He exhibits great customer service and responds to our issues right away. He’s the reason that we continue to rent storage spaces at PS. Bravo! -Charles and Helen ... Read more
    Milton W. - 31 May 2025
    ZHENG K. - 28 March 2025
    Adrian is a person that understand peoples needs, he is friendly, and welcome people. My experience was not too good before him I am happy that he is here now. Well done Adrian! Stay forever, good job. ... Read more
    Maria E. - 6 February 2025
    Adrian was wonderful. We decided to rent the storage to keep our furniture while our house is renovated. He explained everything in detail and took us to see the space. Appreciate his kindness. W happy to have the space at this location. ... Read more
    ??? - 23 December 2024
    I had a great experience with them! Especially talking to Adrian. I just needed somewhere to store my car for 2 weeks until I ship it and I was able to do it for just $30, I moved the car out on November 31st before being charged for the new month. I was charged again for the next month because of lack of communication on my end about my move out, but they gladly sent me back the money without any problems. Great people, they really work with you ... Read more
    precious n. - 2 November 2024
    Candice consistently provides exceptional assistance at Public Storage. She willingly addresses any inquiries I have, displaying a genuine willingness to help.In addition, Candice consistently maintains a positive and cheerful demeanor, which further enhances the overall experience. Her upbeat attitude creates a welcoming environment that puts customers at ease. ... Read more
    Katie l. - 21 May 2024

    About this facility

    Conveniently located at 21035 East Washington Avenue, this Public Storage facility in Diamond Bar, CA, offers a variety of storage unit sizes, including small, medium, and large, to accommodate different storage needs. Whether you're decluttering, staging a home, or storing seasonal items, the range of options ensures flexibility.

    This facility includes valuable features such as drive-up access, perfect for loading and unloading directly from your vehicle, and multi-level storage with elevators for easy access to upper floors. For those with vehicles or recreational equipment, the facility provides parking and RV storage, making it a great option for both personal and outdoor gear storage. The on-site manager and security cameras provide added peace of mind, while contactless renting and online payment offer convenience for busy renters.

    With amenities tailored to modern storage needs, this Public Storage facility is ideal for residents in Diamond Bar seeking a secure and accessible solution for household or vehicle storage.

    Price comparison

    See how this facility's unit prices compare to others in Diamond Bar, broken down by size.

    Small $147/mo
    Location minimum Location maximum
    $85/mo $176/mo
    Medium $215/mo
    Location minimum Location maximum
    $95/mo $310/mo
    Large $636/mo
    Location minimum Location maximum
    $532/mo $691/mo

    Location & walkability

    This storage facility is in a highly accessible area with excellent walkability and public transit options.

    55

    out of 100

    Walk Score

    Somewhat Walkable

    Some errands can be accomplished on foot

    47

    out of 100

    Bike Score

    Somewhat Bikeable

    Minimal bike infrastructure

    Walk Score®: 55, Bike Score®: 47

    Neighborhood highlights

    Located near shopping, car wash stations, and other local conveniences, this storage facility helps you make the most of every visit.

    • Industry

      Transportation 0.08 miles

    • Industry

      Transportation 0.09 miles

    • ampm

      Grocery Stores 0.24 miles

    • Arco

      Services 0.26 miles

    • Farmer Boys

      Food & Drinks 0.3 miles

    • In-N-Out Burger

      Food & Drinks 0.45 miles

    • Shell

      Services 0.47 miles

    • Chevron

      Services 0.48 miles

    • Jasmine Mediterranean & Persian

      Food & Drinks 0.49 miles

    Frequently Asked Questions

    The right storage unit size depends on what you plan to store and how much space you need to move around your items.

    5x5 or 5x10 units are great for smaller loads, such as chairs, lamps, small furniture pieces, boxes, books, and documents.

    10x10 or 10x15 units work well for larger furniture, bicycles, appliances, and the contents of a small apartment.

    10x20 or 10x30 units can typically fit the contents of a three-bedroom home, including large furniture and multiple appliances.

    If you’re unsure which size is best, a unit size calculator can help estimate the right fit based on the items you’re planning to store – helping you avoid paying for more space than you need.

    The facility at 21035 East Washington Avenue is accessible during regular access hours, typically Mon-Fri: 9:30 a.m. - 6 p.m., Sat-Sun: 9:30 a.m. - 5 p.m. Office hours and gate access times may differ, so it’s a good idea to check the facility’s posted schedule before your visit.

    To open your storage unit door, start by unlocking it, whether it uses a traditional padlock or a Bluetooth-enabled smart lock. Once unlocked, grab the bottom handle and lift or pull up the roll-up door until it’s fully open.

    If you’re using the unit for the first time, make sure the lock is properly removed before opening the door to avoid damage.

    Security helps protect your belongings while they’re in storage and gives you peace of mind between visits. Many self storage facilities use a combination of features such as video surveillance, gated access, on-site management, and well-lit premises to help deter unauthorized access.

    At Public Storage - 21035 East Washington Avenue, available security amenities may include Security Camera, Gate, Onsite Manager, designed to help keep your items protected.

    Yes, most standard vehicles can be stored in self storage units. A 10x20 unit typically provides enough space for a car, while outdoor or designated parking areas may be available for larger vehicles.

    For safety reasons, most self storage facilities restrict certain items. These commonly include:

    • Hazardous, flammable, or toxic materials
    • Perishable food
    • Live plants or animals
    • Cash, firearms, or irreplaceable valuables

    Always check with the facility at 21035 East Washington Avenue for specific restrictions and recommendations.

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