eMove | Your one stop moving and storage shop


More info


4400 Horner St
Union City, CA 94587

(510) 489-4747

Office Hours

  • Mon-Sun: 9 am - 6 pm

Access Hours

  • Mon-Sun: 6 am - 9 pm


Need self-storage space in Union City, CA? Reserve your Union City, CA self storage units online and view self storage unit prices here at DIAMOND MINE MINI-STORAGE. We would love to be your mini storage facility of choice and can help you with all of your storage and moving needs in Union City, CA.


  • Boxes and Moving Supplies
  • Truck and Trailer Rentals
  • Mailboxes Available
  • Deliveries Accepted
  • Individually Alarmed Rooms
  • Fenced/Walled Perimeter
  • Electronic Gate Access
  • Lighted Units
  • Video Surveillance
  • Drive-up Access
  • Interior Storage Units
  • Online Payments

Outside Drive Up Storage

The quickest way to unload your possessions is to drive right up to the front door of your room. Wide driveways and well-lit exteriors offer both convenience and security.
*All sizes approximate

See all Outside Drive Up Storage) unit

6' x 6' x 9'

Outside Drive Up Storage
Miscellaneous storage (Up to 2 rooms)



per month

Customer Reviews

See all customer Reviews >
JENNIFER M. 7/1/2015

Why would my reservation be accepted online if the facility was full. Lack customer service.

SHERIE D. 8/3/2014

Nice good customer service great value thx

MARK D. 4/2/2014

Thanks for the good service.

Manager response:
Thank you! Please let us know if there's anything else we could do to help.
LINDSAY C. 1/22/2014

Great customer service. Really helped me figure out which size would fit my belongings best.

JOSHUA F. 12/28/2013

Very professional and easy to move-in.

GEOFFREY A. 7/21/2013

The staff here are nice, friendly, and just amazing. The storage space was clean and in good order.

BONNYE C. 5/30/2012

The young lady that helped me was wonderful. She showed me various units and helped me choose the correct one.

WILLIAM P. 1/27/2012

Facility seems clean and secure. Make sure to talk to Joe when you are setting up your storage space. He is friendly and communicates clearly. Would have given an EXCELLENT if I only dealt with him.

VANETTA A. 7/26/2010

The staff was efficient and helpful. We had hoped to drop the rental truck and car dolly off after unloading but this was not an option due to space limitations, this was the only down side.

ALISA M. 12/24/2009

The customer was good. They were closed on the day I wanted to move in which was a bit of a problem.