MacDonald-Miller Facility Solutions 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 co…

MacDonald-Miller Facility Solutions 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 co…