At MacDonald-Miller Facility Solutions (“MacMiller”) we make buildings work better. As the Northwest’s leading mechanical contracting firm, we design, deliver and service HVAC, plumbing and automation system solutions for commercial buildings. With our over 1,600 employees across 14 offices, there is a breadth and variety of work to keep you engaged and inspired. 

We enjoy a well-respected history of exceeding our customers’ expectations and executing with distinction. Our clients trust their toughest projects with our integrated teams, including: