We design, build and maintain the mechanical systems in many of the region’s premier buildings.

Hermanson Company has been a premier mechanical contractor in the Pacific Northwest for decades.

We have the experience and resources to build and maintain mechanical systems for virtually any facility size and type. You’ve probably seen our work in some of Seattle’s iconic high rises, public facilities and campuses, or maybe you’ve seen our vans around your town.  Our team provides quality mechanical services throughout the Pacific Northwest.

From sustainable mechanical design for LEED Platinum office buildings to complex and highly choreographed hospital renovation efforts, Hermanson’s expertise is unparallelled.

Check out our full list of unique offerings and specialized construction groups.