What are the opening hours?

Monday 7:30am - 5pm Tuesday 7:30am - 5pm Wednesday 7:30am - 5pm Thursday 7:30am - 5pm Friday 7:30am - 5pm

MacDonald-Miller Facility Solutions

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SeaTac, WA
MacDonald-Miller Facility Solutions

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MacDonald-Miller is the top choice, full-service, design-build mechanical contractor in the PNW

11/12/2026

Throwback to this epic crane pick at the Snoqualmie Casino RTU upgrades project. The project consisted of replacing 14 packaged air-handlers and 3 pump skids!

11/11/2026

Today we honor the men and women who have served our country. More than 100 veterans across our PNW offices are part of the MacDonald-Miller team, and we're grateful for them every day.

Our veterans bring teamwork, resilience, and problem-solving to everything we build and maintain. We're honored they've continued their careers with us.

We also extend our thanks to their families and to all who serve our country. Thank you for your dedication.

11/05/2026

Happy 36th MacDonald-Miller anniversary to Director of Service Operations, Darryl West!

11/03/2026

"Good engineering means designing something that can actually be built and maintained. Constructability and serviceability is a big deal. The more time you spend in the field, the more you see the difference between a design that technically works and a design that works well in the real world." - Dylan Bratlie, Lead Design Engineer

Well said, Dylan! We couldn't agree more.

10/29/2026

Congratulations to Lauren Smith, Project Manager at MacDonald-Miller, on receiving Mortenson’s Star Award!

10/27/2026

Proud of the TAB professionals who help us make buildings work better across the Pacific Northwest! https://bit.ly/3R1mt3a

10/22/2026

Happy 36th MacDonald-Miller anniversary to Kelly King, Project Estimator!

10/20/2026

Historic buildings. Occupied spaces. Downtown constraints. The Pittock Block project in Portland, Oregon had it all. This crown jewel showcases what happens when Detailing, Shop, and Field work seamlessly together to tackle complexity head-on. We love a challenge, and Pittock Block proves what's possible when collaboration meets craftsmanship: https://bit.ly/4saxa0M

10/14/2026

Happy 36th MacDonald-Miller anniversary to Linda Bucher, Senior Estimator!

10/12/2026

An inclusive culture strengthens our industry! That’s why Construction Inclusion Week is something we celebrate year-round. Whether at the office or on the jobsite, we're committed to supporting our team and community through great partnerships, thoughtful hiring, and ensuring everyone feels valued wherever they work with us.

We're looking for great people to join our team! Let your friends know we're hiring: https://bit.ly/47sy6FO

Address

17930 International Boulevard/Suite 120
Seatac, WA
98188

Opening Hours

Monday	7:30am - 5pm
Tuesday	7:30am - 5pm
Wednesday	7:30am - 5pm
Thursday	7:30am - 5pm
Friday	7:30am - 5pm

Telephone

+12067639400

Website

https://macmiller.com/

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