- 24 Hour Security Cameras
- Climate Controlled Storage
- RV, Car, Boat Storage
- Truck Rental
- Drive-up Storage Access
- 24 Hour Access Upon Approval
- Online Bill Pay
- Boxes & Supplies
Rate and Review

David Alderson
“Melisa was very helpful with setting up my storage unit and assisting me in navigating all of the options. This is my first time using Storage Masters. The St Charles location is very clean and very well kept. I have a small Roaster I store in the Winter. I was using Public Storage, but their rate Policy for return customers is the worst in town. Public Storage's available discounts if you stay for 3 or 4 months are very good. So far I am very pleased..”

Andy Riggle
“Easy move and Diane the manager was very helpful. We left a storage place that raised our rent by $80.00 after 1 year. To Storage Masters which was a much better deal. Diane helped us get the free truck to move and after moving provided free bottles of water that were really needed..”

John Gilbert
“Diane was absolutely fantastic to work with! She made it so easy when I needed to postpone my move-in date. The whole process was fast and pleasant. The facility was spotless as well. Looking forward to stopping in for a cup of coffee!.”

Lisa W.

“Very friendly service, Diane is the best. Very clean, secure and well lit facility in addition to excellent customer service. Great pricing. Five stars all....”
Linda N.

“I have used this location for several years and love it. The place is impeccably clean and I like the way they put little canisters of chemicals to control....”
Martin V.

“Service was excellent. The units were clean and well maintained. And the manager Diane was extremely kind, courteous and caring..”
Storage Units in Saint Charles, MO
- Web Only $33
- In-Store $43
- Web Only $42
- In-Store $52
- Web Only $50
- In-Store $60
- Web Only $72
- In-Store $82
- Web Only $96
- In-Store $106
- Web Only $127
- In-Store $137
- Web Only $161
- In-Store $171
- Web Only $186
- In-Store $196
Size Disclaimer
Sizes advertised for rent are approximate only; units or spaces at the property may differ slightly in shape and/or size. Customers should inspect the actual unit/space to be rented before signing a rental agreement and should base the decision to rent on the inspection of the unit/space and not on the advertised size. Rental amounts for a particular unit/space are not based on square footage measurements.