BUILDING EXPERTS
MacDonald-Miller is bringing 50+ years of experience to the Inland Northwest. We blend traditional HVAC mechanical services with innovative technology to provide our customers with comprehensive building intelligence. We perform regular inspections and maintenance of your building systems to ensure a greater level of operational excellence. We test, align, calibrate, and record performance to ensure your building’s equipment quality and reduce downtime or emergencies.
When it comes to dedicated HVAC service & maintenance, MacDonald-Miller is unmatched, and we’re proud to be a part of the Eastern Washington landscape.
MacDonald-Miller has been a great partner over the years. When we first started looking around for a company that could meet the demands of our Mission Critical facility, their name kept coming up. We needed a firm with knowledge in data centers and Mission Critical facilities, with focused experience in Preventative Maintenance, but also with depth in Mechanical Engineering and Design/Build services that could help us resolve issues that often spring up months to years after a construction project has been completed. 
They have proven to not only be capable but experts in their wide range of capabilities. We have used them for 