Founded in 2005 and ran out of the owners home for the first 5 years, South Mountain Mechanical is proudly celebrating 15 years of business with offices in Washington and Howard Counties. South Mountain Mechanical Contractors, Inc. is a Heating, Ventilation, Air Conditioning and Commercial Refrigeration (HVAC-R) company specializing in design, installation and service of commercial and residential equipment. As a family owned and operated company with almost 40 years of experience, we are committed to exceptional customer service, performing the needed services quickly and efficiently, and providing value to our customers.