We make buildings work better.

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

Tech in fabrication shop

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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MacMiller Advantage

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Your project works better
with MacDonald-Miller.

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  • Bellevue City Hally
  • 500 Fairview
  • SeaGen
  • Lincoln Square Expansion
  • Construction
  • Boeing Dreamliner

We make buildings work better.