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Business Details



in Business

Union City's First and Largest Self Storage Facility

Regular Hours

General Info:
Safety and security of your valuable belongings is our #1 priority. Our facility is not only clean and well managed, but also provides state of the art security, which includes; A 24-hour resident manager, individual alarms on each unit, an electronic gate, fire protection for each unit, and a 24-hour taped video monitoring system, which not only ensures the security of our site, but also qualifies us to offer Insurance through Deans & Homer, the Insurance provider for self-storage facilities. We accept all major credit cards including Visa, Mastercard, Discover, and American Express. Our customers have access to their units 365 days a year. Our site has Boat and Vehicle garage space available, a full line of moving supplies and boxes, and we have a moving truck that is available at no charge when you move into our facility. We have moving blankets and dollies for our customers to use at no charge. We also have private mail boxes available. Commercial accounts are more than welcome to our facility. Our site is fully illuminated and has fire protection. We are West of 880 between 92 & 84.Easy Access from Hwy 880 and San Mateo and Dumbarton Bridges. All spaces are on ground level. We offer 50% off on two months rent when your rent a new unit.
Extra Phones:

Phone: (510) 489-4788

Phone: (650) 365-2700

Phone: (510) 489-4784

Phone: (510) 475-7485

Primary Phone: (510) 475-7485

TollFree: (800) 468-4285

  • Boxes
  • Hand Carts
  • Moving Supplies
  • Storage
  • Truck Rentals
a.r.e., international
Payment method:
amex, cash, check, debit, discover, master card, visa, all major credit cards
Horner St and Union City Blvd west of 880.
Moving supplies, boxes, 24 hour resident manager, electronic gate, 24 hour access for business clients, ground level spaces, fire protection, insurance available, fully illuminated, private mail boxes, boat, auto, and vehicle parking available, individual door alarms, 24 hour recorded surveillance, free use of dollies and blankets when you move in, free use of moving truck available, monthly specials, coupons, convenient location in Union City.
Self Storage Association

Diamond Mine Mini Storage

U-Haul Neighborhood Dealer

U-Haul Neighborhood Dealer - Diamond Mine Stg Inc

Self Storage, Truck Rental, Moving Equipment Rental, Trailer Hitches, Moving-Self Service

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4400 Horner StUnion CityCA 94587

(510) 489-4747

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4400 Horner StUnion CityCA 94587

(510) 489-4747

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