SMC Heating & Cooling, LLC is a family owned and operated heating and cooling contractor. Owner Shawn McDonough has over 28 years experience in the industry servicing the metro area. Working with Smither's Heating and Cooling from 1988 to March of 2008 before starting SMC Heating & Cooling LLC. We service both commercial and residential customers. Specializing in high efficiency replacement, furnace and air conditioning system upgrades, including EPA mandated, environmentally safe, R-410A refrigerant systems.