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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 to Get it Done and 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.

“Yale Mechanical’s Millwright division has a robust background working in flour mills and knows what is required to efficiently install valve packers, palletizers and related processing equipment. ” Steve Matson, Bay State Milling
“Yale Mechanical is full of remarkable technicians and building engineers. Their staff is now on many of my properties, and I have full confidence in their skills. They explain repairs and maintenance to me in a way that’s easy to understand, and when there’s a problem, they’re very helpful in working out solutions. ” Vicki Karr, Wellington Management

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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