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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

I wanted to take a moment to express my gratitude for the outstanding service I received Monday from repairman Chris Sasse. Chris came to my house Monday morning, shortly after reporting a non-functioning thermostat. (We had no heat for 24+ hours.) He replaced the 1+ year old iComfort Wi-Fi thermostat,...

Carla H.

Beginning with the initial contact I felt comfortable with the completeness of information given and the professionalism during bidding and installation. Installers were respectful and willing to answer any questions. This first experience along with the recommendations received from friends assure me this is a company I know I can...

1000Swifts

I was extremely impressed with the technician. He came and looked at my unit to see what they can do to make it work more efficiently. He also told me exactly when he was coming and he was fair in pricing. Very professional. I really appreciated him. I commend the servicemen...

Kathie T.

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