As the tidal wave of construction booms in Seattle and rapid expansion takes over the Pacific Northwest, we’ve built up a team of professionals capable of taking on every new challenge. Because of our ability to acquire an unparalleled volume of new construction work, we can tackle the largest mechanical projects Seattle has ever seen.

Our depth and breadth of services is unmatched

From design, to build, to installation, to TAB and commissioning, we can be a true partner from concept to completion. MacDonald-Miller has both management and field experience to meet the growing demand of new construction in our industry.


500 Fairview

Union Stables

Amazon Block 45

2030 8th Ave

Union Stables

UW Medical Center Expansion Phase 2

UW Medical Center Expansion Phase 2

Union Stables

Amazon Block 45

Amazon Block 45


It’s all about quality

At MacMiller, we recognize the importance of delivering on-schedule and within budget, all while providing the highest quality possible to your project. In alignment with our Lean principles, we have a quality assurance program in-place to ensure projects are built with the utmost level of craftsmanship and attention to detail, while minimizing waste and re-work. From project start to finish, our quality assurance program has a procedure at every stage to guarantee the success of your building.

Collaboration is key

We maintain certified specialists in every field, which leads to fluid cross-collaboration between departments. Our representatives and managers draw upon this expertise to find solutions and make suggestions to our customers for any challenge they encounter. Commencing from a napkin sketch all the way to onsite implementation, the transparency of our communication fosters success every step of the way.

Let's get started

Are you working with our team on a new construction project? If you have questions, we have answers.

Contact us today!

We make buildings work better.

Our Offices

Seattle

Ph: 206-763-9400

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

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Everett

Ph: 855-MAC-HVAC

Address

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

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Bellevue

Ph: 206-763-9400

Address

12031 Northup Way / Suite 201 / Bellevue, WA 98005

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Tacoma

Ph: 206-763-9400

Address

2500 S Holgate St / Tacoma, WA 98402

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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

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Redmond/Bend

Ph: 541-526-0655

Address

1555 SE 1st Street / Redmond, OR 97756

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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