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.

Contact the best HVAC company in Seattle for all your building mechanical, plumbing, electrical, equipment repair & replacement project needs.

Call us at 855-MAC-HVAC for 24-Hour Service! Visit our Offices near Seattle Everett Redmond Tacoma Spokane Washington Portland Eugene Oregon

Contact our teams at all office locations, Seattle, Everett, Redmond, Tacoma, Spokane, Kennewick, Washington; Portland and Eugene Oregon.

Seattle – First Hill 206-763-9400 Address. 1004 Madison Street / Seattle, WA 98104. Directions

At MacDonald-Miller, we make buildings work better. Period. We are a full-service, design-build mechanical contractor in the Pacific Northwest. With over 1,000 talented professionals, 11 locations, and our own prefabrication shop, no project is too big or too small.

Seattle – Sodo 206-763-9400 Address. 4766 1st Ave S, Seattle, 98134. Directions

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

MacDonald-Miller Facility Solutions prefabrication shop location: 3701 South Norfolk Street Seattle, WA 98118

Our capabilities: Boilers, Chillers, Commissioning, Controls, Design-Build, Electrical, Fault Detection, Service, Tenant Improvement, Plumbing