• Welsch Heating & Cooling

Why Us

We strive to be the most TRUSTED Heating and Air Conditioning Company in the St. Louis/St. Charles area with over 125 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

Just sending a note of thanks for a job well done with the furnace and air conditioner replacement at my home.  I appreciate your efforts on the sales side of this project.  I also want to thank the men for the professional installation.  They were prompt, friendly, informed and answered all of...

Tom P.

The furnace went out during a cold snap in March. Welsch was here with different options available from repair to a new unit. We opted for a new air conditioner and heater as the old one was close to 15 years old. They were competitive with other dealers so we...

Jean P.

Rick, your guys were very professional and left the place clean.  Tell them I appreciate it.

Ken S.

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