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 1,600 employees across 13 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:

• New Construction – From an architectural 3D model to a completed 40 story urban building that is on time and on budget

• Special Projects - Updates/remodeling for existing commercial buildings for new efficiencies


• Service - On demand and scheduled maintenance ensuring tenant comfort


• Building Performance - Control systems and automation for energy improvement and minimal sur...