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Heating & Air Conditioning

Heating & Air Conditioning

We strive to be the best heating and air conditioning company in the St. Louis/St. Charles area with over 120 years of experience.

residential

Residential Equipment

We furnish and install a complete line of heating, air conditioning, air cleaning and humidifying equipment

commercial

Commercial Equipment

The Welsch Heating and Cooling Company offers an enormous array of commercial equipment and services to fit the needs of businesses both large and small.

air-conditioning

Air Conditioning & Cooling

Efficiency-Your air conditioner can be the most expensive appliance to operate in your home.

furnance

Furnaces & Heating

Whether you have gas heat, electric heat, boiler or have a heat pump, we have a solution for you.

air-cleaner

Air Cleaners

Installing a humidifier to your heating system will provide moisture to your home all winter long.

hum

Humidifiers

Controlling humidity can not only affect how comfortable you feel, it can actually save you money on your monthly energy bills.

thermo

Thermostats

Thermostats help your heating and cooling equipment maintain the optimal temperature setting with the utmost energy efficiency.

Reviews

Service of the highest quality and friendly service personal

James W.

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.

My wife and I got home last night at 10:00 to find that our main floor furnace was not working.  We have an upstairs furnace as well but no one lives there right now.  I immediately called the people who put the HVAC in our house originally and who I...

Ray W.

They were very professional. Left the jobsite very clean. Explained the equipment quite well. Walked me through the several rebates. Overall, I cannot think of one bad thing about my experience. AG

AG

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.

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