Best Central Air in Saint Louis MO

Dunn Heating & Cooling installed a new heating and cooling system in our new construction home. Brett from Dunn did the design from the ground up which included heat load calc, equipment selection, duct design. A Trane variable speed system was installed and it couldn't be quieter. In addition, home energy performance measures were done to the home so our home loses less energy (the frost/snow on the roof doesn't melt when compared to the neighbors roofs.) highly recommend this company for expertise in HVAC!