MacDonald-Miller Facility Solutions is the top choice, full-service, design-build, mechanical contractor in the Pacific Northwest.
With over 1,000 talented professionals, 11 locations, and our own fabrication shop, no project is too small or too big. Whether you simply have a service call, or are planning a 40-story office building, we have the right team of system experts – for you and your buildings’ needs.
We are committed to building a truly inclusive culture where equitable pathways are paved and a sense of belonging thrives for all, standing together as one MacDonald-Miller.
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City of Issaquah partners with MacDonald-Miller The City of Issaquah’s new Clean Buildings Incentive Program provides Issaquah building owners with no-cost consultant services to improve energy efficiency. In addition, eligible buildings can apply for state incentive payments to make needed retrofits. As part of the city’s Clean Buildings Incentive Program, Issaquah has partnered with MacDonald-Miller…
We are thrilled to announce a promotion on our leadership team: Matt Humphrey Service Controls & Electrical Operations Manager Matt began his MacMiller career in 2008 as an apprentice on the Eastside Service team. Matt moved to the North Sound, where he was a key partner in growth and leadership. In 2018 Matt was promoted…
Seattle Convention Center Addition Project update from Ryan Hunter, Project Manager: The Convention Center, the largest single building in MacDonald-Miller history, reached an important milestone, the Temporary Certificate of Occupancy (TCO) on January 9, 2023. After several years of preconstruction work, MacMiller began onsite work at the convention center in September of 2019, setting the…
Thank You From Gus Simonds, CEO: We wouldn’t be here today without our customers, so thank you for trusting MacMiller with your buildings. Wishing you a happy holiday season and a happy new year!
MacDonald-Miller is the premier mechanical contractor in the Northwest. And a huge reason for that is our people. Here, nothing is higher priority than creating an environment where employees can craft their own path, embrace technology, expand their skills, and, just as important, be themselves. We are a Finalist for “Best Places to Work in Washington”, in large part because our atmosphere is one of creativity and camaraderie, where the level of dedication is matched by the amount of fun we have! Sound like a good fit? Go to macmiller.com/jobs to find out more about the wide variety of opportunities we have available in Washington and Oregon
Careers at MacMiller
Our clients have trusted us with their buildings for over 50 years. That’s because we listen to what our clients want, and we set out to make it happen.
Learn MoreWe don’t like to brag about ourselves. So here is what others have to say about us.