• FAMILY AND LOCALLY OWNED SINCE 1895

Why Us

We strive to be the most TRUSTED Heating and Air Conditioning Company in the St. Louis/St. Charles area with over 127 years of experience

  • 24-hour service, 7 days a week Repair, optimize, or check your system
  • Any Brand, Any System We service all brands!

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Living Up to Our Commitment

See what made us a national winner!

What We Offer

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Your Comfort Company
Over a Century of Experience

We’ve had more than 100 years to apply our expertise to take care of your heating and cooling needs. Committed to quality customer care, our technicians continue to service the Greater St. Louis area just as current president George "Butch" Welsch’s great-grandfather did when he started The Welsch Furnace Company (now Welsch Heating and Cooling Company) in 1895. Welsch Heating and Cooling Company has received numerous awards and recognition for service excellence, civic responsibility and overall performance as a business leader in the St. Louis area and our commitment to our customers and to the community thrives today.

Reviews

• Had to call Welsch this morning to ask about a thermostat issue. Both of the people I spoke with (the receptionist and the service tech) were extremely nice and helpful. The service tech gave me a few different options to try to rectify the thermostat issue before scheduling a...

John H.

I have used Welsch Heating and Cooling for over 17 years. They are always responsive and very helpful!

JDS

This is just a short note to let you know how courteous and educational our recent technician was serving us for our regular fall service.  I was searching for someone to explain these issues to me and he knew his subject matter and was more than gracious with his time...

Renee K.

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