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Heating & Air Conditioning

Residential Equipment

We furnish and install a complete line of heating, air conditioning, air cleaning and humidifying equipment from the following manufacturers:

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Manufacturers

Each Manufacturer provides us with all available efficiencies of both furnaces and air conditioning units. For detailed information please contact us at 314-872-8070 and speak with one of our Sales Engineers.

For more information about all of our products, including air conditioning, furnaces, humidifiers, thermostats, and air filtration systems, please see our FAQ page.

Reviews

Hi Carol – just a note to let you know how much I appreciate the customer service of Welsch Heating and Cooling – didn’t know how to email your husband, so I thought I would let you know. Yesterday – Sunday – my heater quit (it is not quite 1...

Linda M.

Welsch employees have always been professional and helpful. They have provided the best service and solutions possible to all of our needs over the years.

JPatti

Very courteous,very professional,very patient. Workmen were exceptionally efficient. Excellent cleanup. Explained everything that even an old guy like me could understand it. Sales rep was outstanding.,and office staff is tops. Would highly recommend this company to everyone.

Bill53

We apologize for not sending this note earlier, we wanted to thank you so much for the wonderful afternoon.  Not only was Denny a great tour guide, we met many players and were able to get great autographs for our kids! We loved the afternoon and will remember that for...

Scott & Betsy N.

I wanted to inform you that (the city) just completed the inspection of the two systems installed by Welsch.  The inspector noted that the installation was a first rate job.  I, too, would like to thank you and the entire Welsch Team for a very professional installation from start to...

Dick O.

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