Thank you for visiting Hermy's HVAC Rapid City. Are you looking for an HVAC Contractor in Rapid City or surrounding area? Hermy's HVAC Rapid City is a great choice for your heating contractor or air conditioning contractor needs. Hermy's Heating & Air Conditioning is a leading HVAC contractor in Rapid City specializing in commercial heating and cooling. We also specialize in sheet metal and residential heating and cooling installations. Upgrade your current heating and air conditioning system which improves your energy efficiency and lowers your energy costs!