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 over 1,600 employees across 13 offices, there’s a breadth and variety of work to keep you engaged and inspired.

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

+ New Construction – Engineering, fabrication, and installation of mechanical systems for new projects following lean construction practices.

+ Special Projects – Retrofits and mechanical repairs for existing buildings to create new efficiencies.

+ Service – Scheduled preventive maintenance ensuring tenant comfort and 24/7 emergency response.

+ Building Performance – Control systems, fault detecti...