MacDonald-Miller Facility Solutions is the top choice, full-service, design-build, mechanical contractor in the Pacific Northwest.
With over 1,000 talented professionals, 10 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.
Our Smart Building Service blends predictive HVAC service with innovative technology solutions. Using the best mechanical technology paired with over 50 years of industry expertise, we are able to create a more cost-effective maintenance plan based on need. Our dedicated team of experts connect remotely to your HVAC system, so we can provide critical supervision and helpful building insights!
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MacMiller Giving: Military Order of the Purple Heart Lindsey Andrews, a Navy veteran, combined forces with his father-in-law who is a Vietnam Purple Heart recipient, to regularly volunteer with the Military Order of the Purple Heart. Through our Giving Fund, MacDonald-Miller has partnered with Chapter 407 in Lakewood, WA since 2017 as a platinum level…
MacDonald-Miller headquarters move to SeaTac: New MacDonald-Miller headquarters will be located at SeaTac Office Center, North Tower, 17930 International Blvd., SeaTac. Our corporate headquarters has been at 7717 Detroit Ave SW Seattle since 1988. Our company’s former president owned the building and recently sold it, allowing us to re-envision our workplace. “We chose to go…
MacDonald-Miller’s Diversity, Equity, & Inclusion Statement Message from our CEO, Gus Simonds: Over the past two years, our organization has been on a journey to be even better. In addition to our strong growth as a business, our internal teams continue to learn how we can be stronger together. In the Spring of 2020, together…
MacDonald-Miller is proud to be back on the Puget Sound Business Journal’s list of Top 100 best workplaces in Washington! Thank you to all our employees who make this company one of the best workplaces in the Pacific Northwest. Learn more about joining our team: macmiller.com/careers
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.