CubeSmart Self Storage - Diamond Bar

275 S Prospectors Rd , Diamond Bar , CA 91765 (877) 449-1281

See all 44 reviews

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Make sure you reserve a unit for free today to hold a storage space.

  • 16' Parking Space

    40% Off and Second Month Free

    Discount Price

    $184.20

    Regular Price

    $307.00
    continue

  • 20' Parking Space

    40% Off and Second Month Free

    Discount Price

    $184.20

    Regular Price

    $307.00
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  • 5' x 5'

    5' x 5' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $40.80

    Regular Price

    $68.00
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  • 5' x 5'

    5' x 5' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $43.80

    Regular Price

    $73.00
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  • 5' x 5'

    5' x 5' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $47.40

    Regular Price

    $79.00
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  • 5' x 8'

    5' x 8' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $58.20

    Regular Price

    $97.00
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  • 5' x 8'

    5' x 8' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $63.00

    Regular Price

    $105.00
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  • 5' x 10'

    5' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF

    Discount Price

    $59.25

    Regular Price

    $79.00
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  • 5' x 10'

    5' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF

    Discount Price

    $63.75

    Regular Price

    $85.00
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  • 8' x 10'

    8' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF and Half Off First Month

    Discount Price

    $109.50

    Regular Price

    $146.00
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  • 10' x 10'

    10' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF and Half Off First Month

    Discount Price

    $99.75

    Regular Price

    $133.00
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  • 10' x 10'

    10' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF and Half Off First Month

    Discount Price

    $108.00

    Regular Price

    $144.00
    continue
  • 10' x 10'

    10' x 10' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF and Half Off First Month

    Discount Price

    $115.50

    Regular Price

    $154.00
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  • 10' x 12'

    10' x 12' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $118.20

    Regular Price

    $197.00
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  • 10' x 12'

    10' x 12' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $127.80

    Regular Price

    $213.00
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  • 10' x 12'

    10' x 12' Unit

    1st Floor, Interior

    40% Off and First Month Free

    Discount Price

    $135.60

    Regular Price

    $226.00
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  • 10' x 12'

    10' x 12' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $137.40

    Regular Price

    $229.00
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  • 10' x 12'

    10' x 12' Unit

    1st Floor, Interior

    40% Off and First Month Free

    Discount Price

    $146.40

    Regular Price

    $244.00
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  • 10' x 15'

    10' x 15' Unit

    Interior, Upstairs (Access via Elevator)

    25% OFF

    Discount Price

    $129.00

    Regular Price

    $172.00
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  • 10' x 18'

    10' x 18' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $140.40

    Regular Price

    $234.00
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  • 10' x 18'

    10' x 18' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $226.80

    Regular Price

    $378.00
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  • 10' x 20'

    10' x 20' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $148.80

    Regular Price

    $248.00
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  • 10' x 20'

    10' x 20' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $160.80

    Regular Price

    $268.00
    continue
  • 10' x 20'

    10' x 20' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $249.60

    Regular Price

    $416.00
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  • 10' x 22'

    10' x 22' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $166.80

    Regular Price

    $278.00
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  • 10' x 22'

    10' x 22' Unit

    Interior, Upstairs (Access via Elevator)

    40% Off and First Month Free

    Discount Price

    $180.00

    Regular Price

    $300.00
    continue
  • 10' x 22'

    10' x 22' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $272.40

    Regular Price

    $454.00
    continue
  • 10' x 25'

    10' x 25' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $326.40

    Regular Price

    $544.00
    continue
  • 10' x 25'

    10' x 25' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $352.80

    Regular Price

    $588.00
    continue
  • 10' x 25'

    10' x 25' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $378.60

    Regular Price

    $631.00
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  • 10' x 30'

    10' x 30' Unit

    Drive Up Access

    40% Off and First Month Free

    Discount Price

    $374.40

    Regular Price

    $624.00
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How it works

Reserve 1

Reserve your
storage unit for free

Facility 2

Visit the facility to finalize the rental

Move 3

Move-in!

Operating Hours

Office

Sun closed
Mon 9:30 am - 6:00 pm
Tue 9:30 am - 6:00 pm
Wed 9:30 am - 6:00 pm
Thu 9:30 am - 6:00 pm
Fri 9:30 am - 6:00 pm
Sat 8:30 am - 5:00 pm

Unit Access

Sun 6:00 am - 10:00 pm
Mon 6:00 am - 10:00 pm
Tue 6:00 am - 10:00 pm
Wed 6:00 am - 10:00 pm
Thu 6:00 am - 10:00 pm
Fri 6:00 am - 10:00 pm
Sat 6:00 am - 10:00 pm

Features and Amenities

  • Fenced and lighted
  • Video cameras on site
  • Vehicle requires insurance
  • Electronic gate access
  • Vehicle requires title
  • Handcarts available
  • Moving supplies for sale
  • Manager lives on-site
  • 1 Speakers on staff
  • Email billing available
  • Accepts mail/packages for tenants
  • Rent due on same day each month per lease start
  • Auto-pay available
  • Vehicle must be running
  • Vehicle requires registration
  • Title must match renter
  • Insurance required
  • Insurance available
  • Homeowners/renters insurance accepted
  • Cash accepted
  • Checks accepted
  • Credit cards accepted (Visa, Mastercard, AMEX, Discover)
  • 5% Military discount (active-duty)

Additional information

CubeSmart Self Storage is committed to providing our customers with excellent products, facilities, and customer service. Our customers enjoy many perks including moving services, packing & shipping supplies, storage customization, and business services - along with the best discounts in the industry

Customer Reviews

Leave a review

  • 5.0 of 5 stars

    JoAnne Hoffman

    May 3rd, 2025

    Rental of storage unit

    Clean facility, security cameras, friendly professional staff

  • 5.0 of 5 stars

    weiping Hu

    April 7th, 2025

    very good

    Convenient, reasonable price, good service

  • 5.0 of 5 stars

    Fred

    March 17th, 2025

    Good custom service

    Great facility only thing is there is no light in the locker so be sure to bring a flashlight

  • 5.0 of 5 stars

    Jing Lih Ko

    October 7th, 2024

    Itﾃ｢竄ｬ邃｢s Excellent!

    I had a great experience and the manager was very helpful.

  • 5.0 of 5 stars

    kayla

    June 9th, 2024

    good unit

    good unit all went well, owner was great

  • 4.5 of 5 stars

    Stefan C.

    May 16th, 2024

    Very good experience first time Renter

    Customer service was helpful. They made contact before move date to confirm.

  • 5.0 of 5 stars

    Tam Nguyen

    November 25th, 2022

    Good location.

    Good location,, clean and good deal.

  • 2.0 of 5 stars

    Adolfo Mijares

    September 30th, 2022

    Need to repair door. Does not close properly,

    I let the front office know about door not closing properly and they didnﾃ｢竄ｬ邃｢t take the time to confirm my issue with the door. I am not confident my items will be safe. They did tell me they will call and have a maintenance person go see, but could not tell me when.

  • 5.0 of 5 stars

    Roy Tsuchiyama

    September 29th, 2022

    I donﾃ｢竄ｬ邃｢t make recommendations

    Good experience from reservation to securing unit

  • 5.0 of 5 stars

    Chris Rodriguez

    July 30th, 2021

    Easy to use

    Great place to move into I would do it again

  • 5.0 of 5 stars

    Christina L<br />Campos

    June 1st, 2021

    Great Experience

    I had a great experience and the manager was very helpful.

  • 5.0 of 5 stars

    Ashley

    June 5th, 2020

    Great service and help.

    The staff was really helpful in getting me the right size unit for my household items.

  • 5.0 of 5 stars

    Joey

    March 25th, 2020

    Great place.

    Great pleace. Good units. Great staff.

  • 4.0 of 5 stars

    Lindia

    March 3rd, 2020

    Service

    Staff responded quickly. However, some requests were not followed and therefore made moving in slightly difficult. Overall staff were kind. Building can use some updates however.

  • 4.5 of 5 stars

    Harry

    February 21st, 2020

    Good pricing

    Customer service is very courteous and units are very clean on move in.

  • 5.0 of 5 stars

    Steve

    September 30th, 2019

    Great for all your storage needs

    Great prices. Great staff. Great location

  • 4.0 of 5 stars

    John Paul

    May 5th, 2019

    潇摯

    ........................ ....... Great Service!..

  • 4.0 of 5 stars

    Debbie

    May 1st, 2019

    I had a very good experience!

    The sign up was very quick, and that was with only one employee on duty. I was in, and out within about an hour. Like I said a very good experience.

  • 5.0 of 5 stars

    Shelly

    April 7th, 2019

    This is a great place ,friendly,price was perfect and a truck too

    This place is in a great spot . Customer service was very nice. Open late and provide a truck. I can't complain

  • 5.0 of 5 stars

    Belinda

    February 13th, 2019

    Understanding

    They were great down to earth and very very understanding. I strongly recommend this facility to everyone

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