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  • Welsch Heating & Cooling

Why Us

We strive to be the best heating and air conditioning 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

Save up to $1,600 back!

Get it Fixed By Expert Technicians

Call anytime for home or business!

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

Yesterday (Thursday) I called with an air conditioning problem.  After my call a serviceman contacted me (he was working in North County) letting me know that he will call again.  He did and 15 min later he arrived, diagnosed the problem and fixed it. The heat was suffocating, I watched...

Frank H.

Just wanted to let you know how grateful I am for the wonderful service I have received over the years from your company. ALWAYS super fast response time for repair work, from office staff calling for appointment, to calls the repairman is on the way, to the professional/courteous repairman that...

Matthew K.

Our family tried 4 other company’s in St. Louis to replace old boiler and three AC units for a 4,500 sq. ft. , 100 year old home. It was a VERY complex project involving a lot of thought and creativity. The project was also completed a week before its expected...

G.S.

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