Coker Service Inc. (CSI) is the place to come to when you are in need of a walk-in cooler or freezer. We will size your needs and fit you with the right walk in cooler or freezer to meet your refrigeration needs. With over 20 years of experience in the refrigeration business CSI can provide you with the best quality of sales and service in the area. Give us a call 1-630-941-7070 or come by our showroom and see our display of coolers and freezers. Our phones are answered 24 hrs - 7 days a week.