• 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

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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

Steve W. arrived on time. He cleaned out the air filters and showed me how dirty they were. He checked the outdoor AC units and cleaned them out. Said there was a lot of pine needles in them. One of the AC units was slightly low on freon and he...

Kyle P.

Dependable service. I have worked with John for several years. He is nice and always on time. I trust his advice. It is reassuring to have someone who knows my home system so well. The company has always been responsive to my heating and cooling needs and they are very...

Robert P.

This note is to thank you for the excellent service we received from you.  At 4:30 AM we called the answering service. We received a call that the technician was in the driveway.  After a quick diagnosis, he went and got the needed part and by 8:45 AM he had...

Joan Z.

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