Central Illinois based full service residential/commercial HVAC contractor. Punzak has become the leader in our area for excellent service and equipment replacement. We feature Carrier and Trane. Your comfort is at the center of everything we do. It’s the reassuring warmth on the coldest winter night. It’s that refreshing coolness when you walk in on that hot and humid day. It’s our air conditioning and heating: designed, tested and manufactured to last.