Find Your Perfect CubeSmart Unit

Elite Security Options + Clean, Well-Maintained Facilities + Award-Winning Customer Service

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People's Choice Stevie Awards 2016 Winner ISS Best of Business 2016 BBB Accredited Business One of the most trusted names in storage.

CubeSmart Self Storage of Diamond Bar

Up to 20% Off & Half Off First Month †

275 South Prospectors Drive

Diamond Bar, CA 91765

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New Customers: 1-844-630-2980 New Customers: 1-844-630-2981 New Customers: 1-844-630-2982 New Customers: 1-844-630-2983

Existing Customers: (909) 860-3660

Free Move-In Truck Call for Availability
Boxes and Other Packing Supplies Available
Outside Parking
Individual Lighting & Electricity Available
More services from this location…

These services, among many others, are available to our Customers at this storage location. Simply ask a friendly manager for details about any of these services.

Safety and Security Features

On-Site Manager On-Site Manager: Our manager lives on site for added peace of mind.
Around-the-Clock Video Recording 24-Hour Video Recording: Video cameras monitor this location around the clock.
Well-Lit Premises Property Well Lit: Our property lighting helps you make the most of your space, day or night.

Store Amenities

Tape, Boxes and Other Packing Supplies Available Packing Supplies Available: If you forgot any supplies at home, just pick up what you need here.
Outside Parking Outside Parking: Enjoy convenient, affordable parking at our state-of-the-art facility.
Individual Lighting &
Electricity Available Individual Electricity & Lighting Available: Enjoy exceptional control of your unit with individual lighting and electricity.
Deliveries Accepted We Accept Deliveries: Why have items sent to your home for you to bring here when you can have them sent right to our facility?
Handcarts/Dollies Available Handcarts and/or Dollies Available: Get your items from your vehicle into your unit quickly and easily.

Moving and Storage Deals

Free Move-In Truck Move-In Truck Provided for Free: Load your belongings onto a free truck for more convenient transportation to our facility.
Military Discounts Available Military Discounts Available: Show us your active duty military ID at move-in to enjoy a 10% discount.
Bi-lingual Manager Bi-Lingual Manager: Our team is ready to assist Spanish speaking Customers. Se habla espanol!
Insurance Available Insurance Available: You'll love the peace of mind you'll enjoy with our insurance plans.
Online Payment Options Month-to-Month Leases: If you're not sure how long you need storage we have a flexible option.

About This Facility

With a convenient location and flexible gate and office hours, the CubeSmart Self Storage facility in Diamond Bar, CA is geared toward helping busy people like you. Should you require assistance, our friendly, courteous managers are at your service with their impeccable, award-winning Customer service. Skip the contract by opting for a convenient, hassle-free month-to-month storage lease. Breathe easy when storing your belongings in our storage units thanks to a variety of premium safety and security features like top-notch security gates at most locations, 24-hour video recording and brightly lit areas. Don't sweat it if you forget something because supplies like locks, tape, shelving and boxes are available on-site for your convenience. Should you require additional help, labor and moving services are available. Discover why over 1 million satisfied Customers have chosen CubeSmart, one of the most trusted names in storage.

Select Your Storage Unit Below

Choose from small, medium, large, and parking spaces; no credit card required.


Units from



Units from



Units from



spaces from


5x5* Storage Unit

Interior Storage Unit

Elevator Access

$53.00 $47.70

10% Off

5x10* Storage Unit

Interior Storage Unit

Elevator Access

$74.00 $66.60

10% Off

7x10* Storage Unit

Interior Storage Unit

Elevator Access

$102.00 $81.60

20% Off
& Half Off First Month

5x17* Storage Unit

Interior Storage Unit

Elevator Access

$115.00 $103.50

10% Off

10x10* Storage Unit

Interior Storage Unit

Elevator Access

$116.00 $104.40

10% Off

10x12* Storage Unit

Interior Storage Unit

Elevator Access

$120.00 $108.00

10% Off
& Half Off First Month

10x15* Storage Unit

Interior Storage Unit

Elevator Access

$148.00 $133.20

10% Off
& Half Off First Month

10x20* Storage Unit

Interior Storage Unit

Elevator Access

$192.00 $172.80

10% Off
& Half Off First Month

10x22* Storage Unit

Interior Storage Unit

Elevator Access

$204.00 $183.60

10% Off

10x30* Storage Unit

Outside Drive-Up Access

$361.00 $324.90

10% Off

Can't find the size you're looking for? Try one of these nearby locations:

1372 East 5th Street

Ontario, CA 91764

1 Parking Spaces Available

11.56 Miles from Current Selection

Or, we'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

Reviews of This Location

Nice Staff

April 24, 2016

Everyone that works here is so nice! Wish the units had their own lights.

great self storage facility

April 22, 2016

it is very good storage clean and it is affordable according to the size you want close to the city i live in open and close hours is very good and the facility has good equipment to help customer do stuff that make this facility excelent

What a deal!

April 6, 2016

I recently had to downsize my storage unit. The manager and staff were fully cooperative and facilitated the shift. Part of it involved using on site rental truck for $10 to move some of the contents to my home. What a deal!!

Great self storage facility!!!!!

November 9, 2015

WOW!!! Amazed with this company. Excellent on cleanliness inside and out. The staff is so helpful. So Satisfied!!!! Thank you Roland :]

All around good facility

September 16, 2014

This is a secure facility with good associates on board. Always around if needed and easy access in a relatively secluded area of Diamond Bar CA.

Great Customer Service

July 9, 2014

Staff is welcoming and has been willing to answer all of our questions. Carmen was the best!!! Thank you for all of your help.

Outstanding Srvice

June 5, 2014

The staff was very friendly and helpful. The rates was so much beter than any other storage companies I had checked.

Great Customer Service

May 16, 2014

The Team in Diamond Bar were very helpful. They called me after I made my reservation online, worked with me when I needed to move my unit to a larger space. Helpful and courteous. I would recommend this facility to family and friends.

the storage facility is great.

April 4, 2014

The agent showed me the unit. It is easy to access but it is secure.

Great staff @ Diamond Bard

February 21, 2014

Everyone I have had the pleasure of working with in the Diamond Bar location are wonderful. They are helpful, courteous and caring.

Awesome service

January 22, 2014

Wish it were 24 hour availablity for easier access.

Great Place, good people

October 26, 2013

Friendly staff, clean, secure and accommodating....

Password Retrieval

September 27, 2013

Like the storage facility, esp the hours. I needed into my online account and my password did not work so went thru the retrieval process. I was sent an email which had four different passwords. None worked. I finally found another email with four more passwords, and the fourth one worked. Suggest you look into that procedure; pretty frustrating for the customer.

Great facility

September 6, 2013

The workers are wonderful, helpful and friendly. Always available to help.

The CubeSmart storage building located at 275 South Prospectors Drive, Diamond Bar offers storage solutions for the following service areas:

91765 Storage  ·  91788 Storage  ·  91789 Storage  ·  91795 Storage  ·  91768 Storage   view all

91766 Storage  ·  91769 Storage  ·  91799 Storage  ·  91792 Storage  ·  91748 Storage  ·  91708 Storage  ·  91709 Storage  ·  91724 Storage  ·  91773 Storage  ·  91791 Storage  ·  91723 Storage  ·  91767 Storage  ·  91744 Storage  ·  91747 Storage  ·  91749 Storage  · 

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* Storage unit sizes are approximate.
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