General Info

Founded in 1940, J.W. McClenahan Co. is one of the leading design/build mechanical contractors in Northern California and Northern Nevada. Based in San Mateo, Calif., the company serves the Northern, as well as Central areas of California and Nevada. It offers a variety of services, including installation of complex plumbing, heating, ventilation, air conditioning requirements, as well as industrial piping and fire sprinklers, to name a few. J.W. McClenahan Co. s construction and in-house engineering capabilities cover a wide range of projects, including single unit residential, semiconductor process piping as well as institutional type projects.