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

Self Storage, Car Storage, RV Storage, Boat Storage 25 - 360 Sq. Ft.
★★★★★
★★★★★
4.8/5 - 366 Reviews
Location:
21035 East Washington Avenue, Diamond Bar, CA 91789
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
Swing
Elevator Access
$91 - $113/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
Roll-Up
Elevator Access
First Floor Access
$70/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
Swing
Elevator Access
$63 - $70/mo
Small Storage Unit
4x9
Self Storage
36 Sq. Ft.
Roll-Up
First Floor Access
$74/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
Swing
Elevator Access
$246/mo
Medium Storage Unit
10x15
Parking
150 Sq. Ft.
Car Storage
Parking
Drive-up Access
Outdoor Access
$85/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
Swing
Elevator Access
$135 - $146/mo
Large Storage Unit
12x30
Parking
360 Sq. Ft.
RV Storage
Parking
Boat Storage
Roll-Up
Drive-up Access
Outdoor Access
$621/mo
Large Storage Unit
10x25
Self Storage
250 Sq. Ft.
Roll-Up
First Floor Access
Drive-up Access
Outdoor Access
$444/mo
Large Storage Unit
10x20
Self Storage
200 Sq. Ft.
Roll-Up
Outdoor Access
First Floor Access
Drive-up Access
$347/mo
Large Storage Unit
10x20
Self Storage
200 Sq. Ft.
Swing
Elevator Access
$219/mo

Amenities

  • 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

What customers are saying

★★★★★
★★★★★
4.8/5 - 366 Reviews

Read some helpful reviews of Public Storage at 21035 East Washington Avenue, shared by real renters with genuine experiences and honest opinions.

★★★★★
★★★★★
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

Overview

Located in the scenic city of Diamond Bar, this Public Storage facility at 21035 East Washington Avenue provides a variety of storage solutions for both residential and commercial needs. Offering small, medium, and large units, it caters to diverse storage demands, whether you're downsizing, decluttering, or storing business inventory. Units are equipped with roll-up and swing doors, and some are accessible via elevators, making it convenient to move items regardless of the unit’s location within the facility.

This facility boasts a range of features designed to simplify the storage experience. Drive-up access is available for hassle-free loading and unloading, and indoor access ensures added protection for your belongings. Additional perks include parking and RV storage, ideal for those needing to store vehicles securely. For security, this facility is equipped with security cameras, a gated entrance, and an onsite manager to assist with any questions during operating hours.

Diamond Bar’s suburban layout often means larger homes with seasonal storage demands, making the option for contactless renting and online payment particularly convenient for busy locals. Moving supplies are also available onsite. This facility’s competitive edge lies in its blend of accessibility, security, and versatile unit sizes—perfect for families, small businesses, and RV owners in need of dependable storage solutions.

Nearby Storage Units

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Storage units in nearby cities

Here is how Diamond Bar, CA, compares to other nearby cities. Overall, there are many other great self storage opportunities in the area. Pomona, CA, is just 6 miles away and has 10 storage facilities. Monthly rents there start at $3. However, you could also drive to Brea, CA, which is 6 miles away and which also offers storage units for as little as $37. Chino Hills, CA is also just 7 miles distant. Listings there show no less than 2 facilities, with unit prices starting from $83. Looking a bit further away, storage facilities in West Covina, CA, and Chino, CA, have multiple types of units available, with monthly costs starting at $78 and $64, respectively.

Storage units in Pomona, CA Within a 6-mile radius
10 Facilities
From $3/mo
Storage units in Brea, CA Within a 6-mile radius
7 Facilities
From $37/mo
Storage units in Chino Hills, CA Within a 7-mile radius
2 Facilities
From $83/mo
Storage units in West Covina, CA Within a 7-mile radius
3 Facilities
From $78/mo
Storage units in Chino, CA Within a 9-mile radius
6 Facilities
From $64/mo
Storage units in Fullerton, CA Within a 11-mile radius
8 Facilities
From $45/mo
Storage units in Ontario, CA Within a 13-mile radius
14 Facilities
From $50/mo
Storage units in Upland, CA Within a 13-mile radius
11 Facilities
From $50/mo
Storage units in Orange, CA Within a 14-mile radius
13 Facilities
From $43/mo
Storage units in Cerritos, CA Within a 18-mile radius
3 Facilities
From $49/mo
Storage units in Rancho Cucamonga, CA Within a 19-mile radius
17 Facilities
From $14/mo
Storage units in Tustin, CA Within a 19-mile radius
6 Facilities
From $33/mo
Storage units in Downey, CA Within a 19-mile radius
5 Facilities
From $44/mo
Storage units in Lakewood, CA Within a 21-mile radius
5 Facilities
From $26/mo
Storage units in Pasadena, CA Within a 22-mile radius
13 Facilities
From $91/mo
Storage units in Huntington Beach, CA Within a 24-mile radius
18 Facilities
From $8/mo
Storage units in Costa Mesa, CA Within a 24-mile radius
19 Facilities
From $21/mo
Storage units in Lake Forest, CA Within a 25-mile radius
10 Facilities
From $52/mo
Storage units in Rialto, CA Within a 27-mile radius
7 Facilities
From $30/mo
Storage units in Newport Beach, CA Within a 27-mile radius
3 Facilities
From $131/mo

Check out storage units in trending cities

If you want to see how your city compares to others, you can start by checking out other facilities in trending cities. A wide array of storage units can be leased in Los Angeles, CA, San Diego, CA and San Jose, CA, where sizes and amenities may vary. Monthly rents for units in these cities are as low as $15 and $17, respectively.

Storage units in Los Angeles, CA
206 Facilities
From $15/mo
Storage units in San Diego, CA
71 Facilities
From $15/mo
Storage units in San Jose, CA
65 Facilities
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Storage units in Sacramento, CA
75 Facilities
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Storage units in San Francisco, CA
23 Facilities
From $32/mo
Storage units in Fresno, CA
41 Facilities
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Storage units in Bakersfield, CA
51 Facilities
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Storage units in Long Beach, CA
27 Facilities
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Storage units in Oakland, CA
20 Facilities
From $19/mo
Storage units in Stockton, CA
36 Facilities
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Storage units in Anaheim, CA
21 Facilities
From $40/mo
Storage units in Riverside, CA
35 Facilities
From $31/mo
Storage units in Santa Ana, CA
19 Facilities
From $20/mo
Storage units in Irvine, CA
29 Facilities
From $20/mo
Storage units in Chula Vista, CA
20 Facilities
From $17/mo
Storage units in Modesto, CA
27 Facilities
From $23/mo
Storage units in San Bernardino, CA
16 Facilities
From $35/mo
Storage units in Fontana, CA
18 Facilities
From $41/mo
Storage units in Fremont, CA
14 Facilities
From $25/mo
Storage units in Santa Clarita, CA
24 Facilities
From $31/mo
Browse storage units in all California cities.

Frequently Asked Questions

Storage units available at Public Storage - 21035 East Washington Avenue include the following amenities: 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 and RV Storage. Depending on what you need to put away in storage, you can discover there are some things you absolutely need, so make sure you check with the facility manager that you'll find everything you need on site.

This particular storage facility provides self storage units of different sizes, ranging from 25 to 360 square feet. Space is not an issue! If you have more belongings to store, or simply bulkier items or even vehicles, you should go for larger storage units.

You already know how much stuff you need to put in self storage, so figuring out the unit size you need is the next step. Smaller units such as 5'x5' or 5'x10' spaces can usually be filled with the amount of items you would normally store in a closet: a few chairs and lamps, sports equipment, garden tools and some boxes.

Moving on to larger sizes, imagine the 10'x10' and 10'x15' units as similar to a bedroom or a living room – larger pieces of furniture, sturdier equipment and bicycles can fit here. Finally, a 10'x20' unit has enough space for the contents of a 3-bedroom house, while the larger 10'x30' space easily accommodates the contents of a loaded semi-truck.

Monthly prices for units offered by Public Storage - 21035 East Washington Avenue start from $63 and can go up to $621 for larger spaces.

Accessibility and quickness are key when it comes to storage, so drive-up storage units are generally regarded as very convenient. Pull your car right up to your storage space, load, unload, and you're good to go! However, if you're mostly storing temperature-sensitive items, you should rather consider indoor storage units.

Climate-controlled units maintain consistent temperatures and humidity levels all year round, making them perfect for all your sensitive items. Moisture and varying temperatures can damage a whole host of things, and that is why a lot of people choose to use climate-controlled units to store items like wooden furniture, electronics, artwork, documents and photographs, collectibles, antiques, etc. If the belongings you're storing are important to you, you should consider renting a climate-controlled unit.