Contact Us Reach Out to Our Technicians at Sitco Systems Inc. Sitco Systems, Inc. 8454 South Stony Island Ave. Suite 100 Chicago, IL 60617 (708) 418-3207 [email protected] Company Name* Company Address* Street Address Your Name* First Last Your Email* Your Phone*What type of service are you interested in? Repair Services Sales General Inquiry Service Contracts Message*PhoneThis field is for validation purposes and should be left unchanged.