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About Us

Leading the Industry Since 1939

We serve nearly every type of commercial, industrial, and institutional building with the best mechanical contractor services in the Twin Cities metro and across the Midwest.


mechanical contractor tools

24/7 Service

Not Just 9-to-5

With the largest, most skilled HVAC service fleet in the Twin Cities, our expert technicians are always ready to keep your building up and running day or night.


Yale Mechanical HVAC service van
Orbital Welding


Celebrating 80 Years of Making Buildings Work Better

Since 1939, we’ve built a reputation for upfront pricing, greater accountability, timely completion, and unsurpassed quality.


Yale Mechanical Never Leaves You Out in the Cold

We always put our clients first with fast 24-hour emergency service and flexible service agreements.

HVAC rooftop Units


Trust Yale's Mechanical Contractors to Get it Done Right

Our team of experienced mechanical contractors, design-build engineers, HVAC technicians, and Millwrights handles the most complex projects on time and on budget.

Industrial Surplus, Inc.
“I had Yale Mechanical install a Global Plasma Solutions FC48-AC on my existing HVAC system. I couldn’t be happier that I chose to have them install the unit. My staff really appreciate the effort to make them as safe as possible by installing the GPS system. I would recommend this system to any business that takes the safety of their staff and customers as a priority. They did a great job. ” Tim Boles, Industrial Surplus Inc.
“If you’re concerned at all about clean air and eliminating odors, the Needlepoint system is well worth it on that alone. But in this day and age, if you’re really concerned about COVID-19 and want to attack this so that your space is safe and people can come freely without worry, it’s well worth the investment. ” Mike Lentz, St. Joseph the Worker

Chris Young


I lead Yale Mechanical and manage project design and construction to ensure cost, quality and scheduling expectations are met.

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Chris Siedow

Vice President, Industrial Division

I lead a millwright team that solves Minnesota’s leading manufacturers’ most challenging industrial needs.

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Ron Gundershaug

Vice President, Service Operations

I oversee a veteran service team committed to superior HVAC service and energy management solutions.

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