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  • Welsch Heating & Cooling

Why Us

We strive to be the best Heating and Air Conditioning Company company in the St. Louis/St. Charles area with over 120 years of experience

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

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Specials on Heating and Cooling Complete Systems

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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

On another note, my mother received her very generous Bread Co. gift card (for recommending you to me).  She has promised to take me out for a delicious lunch.  We both thank you.  It is difficult to find businesses today that provide personal and dependable service.  The Welsch company is...

Cindy N.

I cannot remember the cost, but we got a new furnace and AC unit. They also installed a new thermostat that does wifi. I was pleased with their prompt, neat service.

Barbara U.

Our a/c fan went on the hottest day of the year. We have used Welsh for years and they were quick to respond and had a new system in the next day. Couldn’t be happier.

BCM

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