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Diamond Mine Storage - Union City

4400 Horner Street, Union City, CA 94587 (510) 240-1758

Hours

Office Hours
Sun 9:00 am - 6:00 pm
Mon 9:00 am - 6:00 pm
Tue 9:00 am - 6:00 pm
Wed 9:00 am - 6:00 pm
Thu 9:00 am - 6:00 pm
Fri 9:00 am - 6:00 pm
Sat 9:00 am - 6:00 pm
Access Hours
Sun 6:00 am - 9:00 pm
Mon 6:00 am - 9:00 pm
Tue 6:00 am - 9:00 pm
Wed 6:00 am - 9:00 pm
Thu 6:00 am - 9:00 pm
Fri 6:00 am - 9:00 pm
Sat 6:00 am - 9:00 pm

Features

Features
  • Free use of truck (50-mile limit, $14.99 truck insurance fee, tenant must refuel)
  • Video cameras onsite
  • Electronic gate access
  • Fenced + lighted
  • Handcarts available
  • Visa, Mastercard, AMEX and Discover credit cards accepted
  • Auto-pay available
  • Cash accepted
  • Rent due on same day each month per lease start
  • Checks accepted
  • Manager lives on-site
  • Moving supplies for sale
  • Vehicle Storage (title must match renter, vehicle must be running, vehicle requires registration and vehicle requires title)

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There are 20 types of units currently available at this facility.
Call SpareFoot now or reserve with us online to secure the rates below.

4' x 5' Unit

  • Interior,
  • Alarm,
  • 1st Floor,
  • Light in Unit

$48.00
per month

5' x 6' Unit

  • Interior,
  • Alarm,
  • 1st Floor,
  • Light in Unit

$64.00
per month

5' x 6' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$64.00
per month

6' x 6' Unit

  • Interior,
  • Alarm,
  • 1st Floor,
  • Light in Unit

$65.00
per month

5' x 7' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$66.00
per month

6' x 6' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$71.00
per month

5' x 10' Unit

  • Interior,
  • Alarm,
  • 1st Floor

$78.00
per month

6' x 10' Unit

  • Interior,
  • Alarm,
  • 1st Floor,
  • Light in Unit

$83.00
per month

5' x 10' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door

$88.00
per month

6' x 10' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$93.00
per month

8' x 10' Unit

  • Interior,
  • Alarm,
  • 1st Floor,
  • Light in Unit

$111.00
per month

7' x 10' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$112.00
per month

10' x 10' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door

$138.00
per month

10' x 12' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door,
  • Light in Unit

$153.00
per month

10' x 17' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door

$181.00
per month

10' x 18' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door

$183.00
per month

10' x 19' Unit

  • Drive Up Access,
  • Alarm,
  • Roll Up Door

$186.00
per month

10' x 20' Unit

  • Drive Up Access,
  • Alarm,
  • Vehicle,
  • Roll Up Door

$209.00
per month

10' x 25' Unit

  • Drive Up Access,
  • Alarm,
  • Vehicle,
  • Roll Up Door

$247.00
per month

10' x 30' Unit

  • Drive Up Access,
  • Alarm,
  • Vehicle,
  • Roll Up Door,
  • Light in Unit

$314.00
per month

Diamond Mine Storage in Union City is focused on providing customers a quality storage experience. We have a large variety of unit sizes, including both indoor and outdoor spaces. Our facility is designed to keep your storage secure 24 hours a day.

Help your fellow storage searchers make the right choice!

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Leave a review of Diamond Mine Storage - Union City

Customer Reviews of this Facility (9 )

3.0 out of 5 stars Sep. 17, 2014

Great services, not a good location ..

  Price - 3/5 (Fair price)

  Time on paperwork - 4/5 (About 15 minutes)

  Security - 4/5 (Very secure)

  Service - 4/5 (Very helpful)

  Cleanliness - 4/5 (Clean)


Recommended: No

5.0 out of 5 stars Aug. 26, 2014

RC and Evelyn are amazing! Efficient, professional, accommodating and friendly.

  Price - 4/5 (Good value)

  Time on paperwork - 5/5 (Under 10 minutes)

  Security - 5/5 (Extremely secure)

  Service - 5/5 (Outstanding)

  Cleanliness - 5/5 (Squeaky clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Sep. 9, 2014

Thank you and we appreciate your business!

3.0 out of 5 stars Jul. 3, 2014

My experience has been okay so far.

  Price - 4/5 (Good value)

  Time on paperwork - 3/5 (About 20 minutes)

  Security - 4/5 (Very secure)

  Service - 3/5 (Helpful)

  Cleanliness - 5/5 (Squeaky clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Sep. 17, 2014

Thank you, Amber.

4.5 out of 5 stars Jun. 6, 2014

Excellent

This facility was the most economical for a large unit that I could find. I rented a 10x30 for my company, and was pleasantly surprised at how well kept and secure the place is. The office person Evelyn was excellent and provided outstanding customer service, and I would recommend this place highly.

  Price - 4/5 (Good value)

  Time on paperwork - 4/5 (About 15 minutes)

  Security - 5/5 (Extremely secure)

  Service - 5/5 (Outstanding)

  Cleanliness - 5/5 (Squeaky clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Jun. 10, 2014

It's a pleasure to be of service to you, Kathy and your company. Thank you for the kind words!

3.5 out of 5 stars Feb. 4, 2014

Clean, very friendly and most importantly very secure

At the first conversation with Sabrina was when I knew that I was going to be in good hands. She was very helpful, patient and provided all information we needed. This location is also very clean.

  Price - 4/5 (Good value)

  Time on paperwork - 4/5 (About 15 minutes)

  Security - 4/5 (Very secure)

  Service - 5/5 (Outstanding)

  Cleanliness - 5/5 (Squeaky clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Feb. 4, 2014

Thank you, Chasity!

3.0 out of 5 stars Jan. 12, 2014

Didn't like the 6 month commitment I had to sign in order to use the truck .but it seems ok I don't spend to much time there

  Price - 1/5 (Unfair price)

  Time on paperwork - 2/5 (About 30 minutes)

  Security - 2/5 (Somewhat secure)

  Service - 1/5 (Very unhelpful)

  Cleanliness - 3/5 (Average)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Jan. 14, 2014

Thank you very much for choosing Diamond Mine Mini Storage. We apologize that there seems to be some sort of misunderstanding. All our storage rentals are strictly on a month-to-month basis and only require a minimum 30-day rental. On the other hand, we also offer a second month free promotion on select sizes with a minimum 6-month rental. As you have already availed, we also offer free promotional use of our truck for moving in upon rental of a 5 x 10 or larger unit.

4.0 out of 5 stars Dec. 17, 2013

the employees were really friendly and tried to offer good customer service

  Price - 4/5 (Good value)

  Time on paperwork - 3/5 (About 20 minutes)

  Security - 3/5 (Secure)

  Service - 4/5 (Very helpful)

  Cleanliness - 4/5 (Clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Jan. 14, 2014

Thank you, Kevin.

5.0 out of 5 stars Oct. 17, 2013

Nice

  Price - 4/5 (Good value)

  Time on paperwork - 3/5 (About 20 minutes)

  Security - 5/5 (Extremely secure)

  Service - 5/5 (Outstanding)

  Cleanliness - 5/5 (Squeaky clean)


Recommended: Yes

Comment from Diamond Mine Storage - Union City on Jan. 14, 2014

Thanks, William.

4.5 out of 5 stars Aug. 10, 2013

Secure, good customer service and easy access

The storage facility on Horner St Union City is awsome. The staff is very friendly and i was impressed by their customer service skills. The storage is clean, open, and secure. Plus it is easily accessible and smoke free facility.

  Price - 4/5 (Good value)

  Time on paperwork - 4/5 (About 15 minutes)

  Security - 4/5 (Very secure)

  Service - 5/5 (Outstanding)

  Cleanliness - 4/5 (Clean)


Recommended: Yes

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