From Installation to Repair, Find the Top HVAC Pros in Jacksonville, IL

Brennan Heating & Air Conditioning, Inc. is a family-owned and operated HVAC company that has been serving the community since 1947. Our skilled technicians are STAR HVACR Mastery Certified and NITC Certified, providing exceptional results and trusted service. We offer a range of services including air conditioning, heating, indoor air quality, heat pumps, ductless systems, sheet metal fabrication, and commercial refrigeration. We serve residential and commercial customers in Jacksonville, IL and the surrounding areas. Our flexible financing solutions allow customers to experience year-round comfort without breaking the bank.