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.

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Preventative Maintenance

We make maintenance easy with one of our newest services, Connected Building Solutions. We use smart devices to connect the benefits of building intelligence with a proactive maintenance plan, tailored to your portfolio and budget. How can this technology enhance your building's performance?

Energy Savings

The more you know, the more power you have to make informed decisions. Find out how a preliminary audit or investment grade audit could show areas for improving equipment functionality and decreasing costs of operation.

Automate Your System

Stay in control of your operations with unified building automation. Operate your facilities at peak efficiency and maximum comfort by integrating all mechanical, electrical, safety, lighting, video, and card access into an operations center.



matt-simpsonMacDonald-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. 

vm-wareThey have proven to not only be capable but experts in their wide range of capabilities.  We have used them for Preventative, and Emergency Maintenances, Design/Build Projects, Controls, Electrical Services, and even to augment manpower during Critical Electrical Maintenances.  Our experience with their technicians is that they are conscientious and treat our equipment like their own.  If I could list one quality which l value the most, this would be it.  I would have no problem recommending MacDonald-Miller Facility Solutions for any one of their specialized services. – Matt Simpson, Sr. Building Engineer at VMware.

SERVICE with MacDonald-Miller

  • Dedicated Account Manager
  • Emergency Services
  • Preventative Maintenance
  • Air Quality Filter Services
  • Building Performance Analysis
  • Commercial Boiler Services
  • Commercial Chiller Services
  • Plumbing Services
  • Electrical Services
  • Building Automation / Controls System Support
  • Standard Repair & Replacement Services

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How can we help you today?

We make buildings work better.