Mountaineer Mechanical was started in 2002 in Little Hocking, Ohio. It grew from a small family owned business with only a few employees to 12 employees in 2008. A new location with an office building and warehouse was built in 2010. An added location in Parkersburg, West Virginia was started in 2015 with 30 employees servicing a bigger area and specializing in Heating, Cooling, Plumbing, and commercial restaurant equipment.