McKinstry Co

Harder Mechanical Contractors started in commercial plumbing and evolved into a mechanical contractor when asked to help build the first hydroelectric dams in the Pacific Northwest. The privately-owned construction firm grew as new industries came into the region due to its abundant water and surplus electrical power. Its services consists of pipe fabrication and installation; equipment installation; commercial heating, ventilation and air conditioning; plumbing; instrumentation; and design/build. Harder Mechanical works with the power generation, pulp and paper, steel, aluminum, food and beverage and semiconductor-related companies. James M. Harder Sr. founded Harder Mechanical in 1938. Harder Mechanical Contractors is located in Portland, Ore., and operates a subsidiary, Universal Structural, in Vancouver, Wash.

Located in Salem, Ore., Lorens Heating and Air provides residential and commercial customers with complete sales, services and installation of heating and air conditioning systems from Carrier. The company offers Infinity Series, Performance Series and Comfort Series for its customers. It features a comprehensive collection of products, including gas furnaces, duct free split systems, fan coils, air conditioners, heat pumps, boilers, home generators, air cleaners, humidifiers, controls and thermostats, geothermal heat pumps and room-by-room solutions among others. Lorens Heating and Air is a factory-authorized dealer of Carrier.