McCormick Heating & Cooling is a family-owned and operated HVAC company proudly serving Gratiot Township, Michigan, and surrounding communities since 1969. We specialize in residential heating and air conditioning installation, HVAC repairs, preventative maintenance, system replacements, and energy-efficient comfort solutions. With more than 50 years of experience, our team is committed to providing honest service, quality workmanship, and dependable results for every customer. Whether you need seasonal maintenance, emergency repairs, or a new HVAC system, McCormick Heating & Cooling delivers reliable service and lasting comfort backed by decades of trusted expertise.