“Great experience with Storage Quest! The service is always excellent from start to finish. Arianna and Ron are both incredibly helpful, professional, and friendly. Really appreciate their attention to detail and willingness to go the extra mile verry helpful staff.…”
Self Storage Units in Diamond Bar, CA - 21320 E Golden Springs Dr


(909) 245-0568
Agents are Available 24/7 - Call Now!
Office Hours
Monday - Saturday: 9:00am - 6:00pmSunday: 10:00am - 5:00pm
Access Hours
Monday - Saturday: 9:00am - 6:00pm
Sunday: 10:00am - 5:00pm
Choose Your Unit
*A one-time $29 Admin Fee applies for new account set-up.
Promotional Rate is valid for 4 months.
5’ x 5’
- Ground-Level Access
5’ x 10’
- Drive-Up Access
5’ x 15’
- Drive-Up Access
10’ x 10’
- Ground-Level Access
10’ x 15’
- Drive-Up Access
10’ x 18’
- Vehicle Parking
8’ x 23’
- Vehicle Parking
10’ x 20’
- Drive-Up Access
15’ x 15’
- Drive-Up Access
Choose Your Unit
*A one-time $29 Admin Fee applies for new account set-up.
Promotional Rate is valid for 4 months.
5’ x 5’
- Ground-Level Access
5’ x 10’
- Drive-Up Access
5’ x 15’
- Drive-Up Access
10’ x 10’
- Ground-Level Access
10’ x 15’
- Drive-Up Access
10’ x 18’
- Vehicle Parking
8’ x 23’
- Vehicle Parking
10’ x 20’
- Drive-Up Access
15’ x 15’
- Drive-Up Access
What StorQuest customers are saying
“I had a great experience at Storage Quest in Diamond Bar, and a big reason why was Ariana Ciproanni. She was incredibly helpful, professional, and made the whole process smooth from start to finish. Ariana took the time to explain…”
“The staff in the office was really helpful and friendly made everything super easy and fast.”

Facility Amenities
StorQuest Storage locations offer premium amenities and solutions to make your storage experience convenient and secure.
- 1st Floor Access
- 24/7 Access
- Vehicle + RV Parking
- State-of-the-Art Facilities

Secure RV, Auto, and Boat Storage in Diamond Bar, CA
The size of your garage or driveway shouldn’t keep you from living your land or maritime dreams. Keep your RV, boat, motorcycle, or extra vehicle at our Diamond Bar location while freeing up space for your in-season gear. When it’s finally time to hit the road or the water, you’ll have easy access to your toys and rigs right off the Pomona Freeway. You can even stop nearby at Shell or Inn-N-Out Burger to refuel both yourself and your vehicle.
Decided it’s time to take the RV out for a trip? No problem – just pull right up to one of our ground-level units, gear up, grab what you need, and head out for the open road. Our Diamond Bar location puts you right by the intersection of the 57 and the 60, so making a stop here fits right in with your schedule.
Have any questions or ready to rent a unit? Give us a call!
Specialty Units at This Location
Our location offers multiple unit types that serve any storage need you have.
RV & Boat Storage
Park and store your RV or boat with confidence.
Self Storage
Safeguard your furniture, seasonal items, and more with StorQuest’s secure, convenient self storage solutions tailored to your lifestyle.
24/7 Online Rentals & Support
Rent a unit or connect with our team 24/7. We're here whenever you need us.
Reach Out to Our Dedicated Self Storage Team
Looking to speak with a member on our team? Either give us a call, swing by our leasing office, or submit the form below and someone at StorQuest Self Storage will follow up with you shortly.
Office Hours:
Monday - Saturday: 9:00am - 6:00pm
Sunday: 10:00am - 5:00pm
Access Hours:
Monday - Saturday: 9:00am - 6:00pm
Sunday: 10:00am - 5:00pm
Extended Access Hours Available. See Manager for Details