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DC Air Heating and Cooling, LLC is a family owned and operated company out of Glendale Heights, Illinois established in 2012. We have a background in both residential and commercial HVAC-R. We service all of DuPage County, Illinois and Chicago land Area. We service and repair all heating, cooling, and refrigeration equipment. DC AIR is a trusted heating and cooling company providing our customers with excellent service, honesty, and reliability. We welcome the opportunity to earn your trust and our team is dedicated to offering you reliable expertise and excellent service. Dave Cavazos, owner, and operator of DC AIR has a very knowledgeable background in heating, ventilation, air conditioning, refrigeration and hot water heating systems. Over the course of time, Dave Cavazos has worked with many HVAC-R contractors in the Chicago land area. His education came from the College of DuPage where he received a degree in heating and cooling and general studies then later entering an apprenticeship in HVAC-R. Dave is very knowledgeable and willing to help you with your heating and cooling needs. For more information on our services, please call 630-915-8033, or send us an email at