The W.T. Humphrey companies are dedicated to bringing their customers quality work at competitive prices. Founded in 1967 by Troy Humphrey as Humphrey Heating and Roofing Company, the W.T. Humphrey family of companies has grown to include: Humphrey Heating and Air Conditiong, Inc. Humphrey Mechanical, Inc. Jacksonville Metal Manufacturing, Inc. Brynn Marr Homes, Inc. Coastal Plains Raceway Park The companies work throughout North Carolina and employ over 350 skilled workers in all aspects of general and mechanical construction, heating and air, and residential development.