Mark's Machine Shop, Inc. Auto Dealers, Services & Repair Mark's Machine Shop, Inc. 416 N. Main St. Sycamore, IL 60178 (815) 895-3955 (815) 895-5173 (fax) Facebook Hours: 7:00 am - 5:00 pm M-F About About Mark's Machine Shop Inc. is a full service machine shop focusing on installation of new truck equipment and the repair of old. Custom metal fabrication and design.
