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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:

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

We had Welsch replace one of our old air conditioners, air handler etc with a new Lennox! The whole process from estimate to completion was first class!!! Will definitely use them again!

SR

We have used Welsch for over 30 years and have never had any problems. I recommend them highly. Very fair, prompt, friendly people and competitively priced.

Bob 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 very happy with the prompt, professional service when we purchased our new furnace. All options were presented in a clear, concise way. I would definite recommend Welsch.

Mary H.

Welsch Heating and Cooling came out fast (our old unit stopped on a Friday – our new one was in by Monday.) They were very responsive to our needs and very helpful during the installation and followed up to ensure we were happy with our service!

Corinne D.

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