A Storage Inn is the first self-storage company serving the Missouri and metro east of Illinois and is locally owned. Since 1973, we’ve opened ten self-storage facilities allowing us to serve residents in O'Fallon, Swansea, and Alton, IL as well as Ballwin, Fenton, St. Charles, St. Louis, St. Peters, and Ellisville, MO. Our leases are month to month and you’ll never have to pay any additional charges at move in. Stop by the office if you’re a new tenant and pick up a FREE storage lock. We look forward to being your self-storage solution. Contact the facility nearest you or reserve a unit online!