We make buildings work better.

MacDonald-Miller Facility Solutions is the top choice, full-service, design-build, mechanical contractor in the Pacific Northwest.

We want to make your facility run the best it can.

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.

Through the Eyes of MacMiller

We've grown a lot over the years, but what has not changed is our vision, our culture, or our dedication to our customers. Our latest video created for our annual employee appreciation party perfectly portrays what it's like to be a part of the MacMiller family.

We’re a winning team

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 2015 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

We let our work speak for itself.
And it has a lot to say.

View Our Project Gallery
  • Lincoln Square Expansion Phase 2
  • k5-building-official
  • Boeing-Delivery-Center
  • Polyclinic
  • Boeing-Dreamliner
  • Home-Plate
  • Seattle Sheraton Boiler Retrofit
  • Bellevue-City-Hally

Latest News

We make buildings work better.

Our Offices

Seattle

Ph: 206-767-7995

Corporate Mailing

PO Box 47983 / Seattle, WA 98146-7983

Corporate Street

7717 Detroit Ave SW / Seattle, WA 98106

Madison Office

1004 Madison Street / Seattle, WA 98104

Prefabrication Shop

3701 S Norfolk / Seattle, WA 98118

Directions
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Everett

Ph: 425-252-8044

Address

3211-1/2 Broadway Ave / Everett, WA 98201

Directions
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Bellevue

Ph: 206-767-7995

Address

12031 Northup Way / Suite 201 / Bellevue, WA 98005

Directions
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Tacoma

Ph: 253-680-3170

Address

2500 S Holgate St / Tacoma, WA 98402

Directions
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Portland

Ph: 971-244-0901

Address

12911 NE Airport Way / Portland, OR 97230

Directions
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Eugene

Ph: 971-244-0901

Address

5250 Highbanks Road / Suite 310 / Springfield, OR 97478

Directions
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Redmond/Bend

Ph: 541-526-0655

Address

1555 SE 1st Street / Redmond, OR 97756

Directions
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Moses Lake

Ph: 509-766-6637

Address

500 South Lasco Lane, Suite 227 / Moses Lake, WA 98837

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Our Locations