Refrigeration systems are critical to your business in Oak Brook, IL, and proper maintenance is key to protecting this investment. If you experiencing problems with you walk-in freezer or refrigerator, ACTION Heating & Air Conditioning has the staff and experience to solve your problems. Whether it is scheduled preventative maintenance, condenser service and replacement, or emergency maintenance, the ACTION Heating & Air Conditioning team of expert technicians is ready to respond to your needs in Oak Brook, IL.