The D Air Conditioning Company is a full-service HVAC contractor. We are the #1 ductless mini split and VRF air conditioning ... contractor in Southern California. Our goal is to provide quality service and craftsmanship. We focus on continuous improvement and delivering exceptional value to our customers. We have 3 retail locations in Orange County California. We are well versed in Lean Construction methods such as the Last Planner, Choosing By Advantages, Target Value Delivery, and A3 problem-solving. read more