MacDonald-Miller ranked #1 Best Workplaces RANKED #1 in the extra-large companies category It is an honor to be on the Top 100 Best Workplaces list and ranked first in the extra-large company category this year. Read more from the Puget Sound Business Journal: Washington’s Best Workplaces 2025 MacDonald-Miller. “I’m grateful to our people across the…
We make buildings work better.
MacDonald-Miller Facility Solutions is the top choice, design-build, commercial mechanical contractor in the Pacific Northwest.
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Now Offering Text-for-Service
Responsive Service When your building systems need attention, every minute matters! We’re making it easier for MacDonald-Miller customers to get in touch with our service team with our new text-for-service feature. Fast, Direct Access Our team is always ready to tackle any challenge, from minor repairs to major emergencies. If you have an HVAC or…
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VP of Service Operations – Matt Barnes
Matt Barnes Vice President of Service Operations: Congratulations to Matt Barnes, Vice President of Service Operations at MacDonald-Miller! Matt’s journey with MacMiller began in 2012 through the U.A. Veterans in Piping program, joining us as a service apprentice while actively serving as a medic in the Army National Guard. Since day one, Matt has exemplified…
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Perspective: Energy + Sustainability
2025 Perspective Energy + Sustainability Energy and sustainability efforts for PNW buildings today span from complying with new Building Performance Standards to innovating strategies for hitting net-zero targets. It’s clear sustainability is now a core business imperative, demanding data-driven strategy and commitment to uncovering new opportunities to make buildings work better. Discover how regional leaders…
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Fabrication Services
When you choose MacDonald-Miller for your fabrication needs, you're not just getting a product – you're getting a commitment to excellence. Whether you're in search of Specialty Manufacturing, Piping Fabrication, or Sheet Metal Fabrication, we're here to serve you. With our expertise in bending, cutting and burning, forming, welding, and final assembly services, we're uniquely equipped to meet all custom requests because we have the right tools and the right people for any job!
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Our clients have trusted us with their buildings for over 60 years. That’s because we listen to what our clients want, and we set out to make it happen.
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