MacDonald-Miller Facility Solutions
ConstructionWashington, United States1001-5000 Employees
MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor operating in the Pacific Northwest. The company provides mechanical engineering, design-build construction, custom metal fabrication, building-system service, maintenance, and energy-management programs, and it is certified as a State of Washington and Oregon Energy Services Company. Based in Seatac, Washington, it serves building owners and managers seeking integrated systems solutions for their facilities. The firm's work focuses on improving building performance and energy efficiency through its range of services and programs. In 2024 the company expanded its footprint with a new office in Portland, Oregon, expanding its regional presence.