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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

I just want to take a moment to thank you for the manner in which a service request was handled yesterday, May 29th. First of all thank you for getting a technician out here with a few hours. Secondly, I really appreciate the way the resolution to my problem was...

Dennis D.

A service tech came out today and looked at my residential boiler and was very helpful.  He is a wealth of information and did a great job.

Erik E.

I think you should know the type of people you have working for you. I can only say good things about the crew that came to my house today and installed an American Standard Central heating and air conditioner.  Dave, Brian and Mark worked as a team – taking a...

Joe and Sharon M.

Just want you to know how very happy we are with the excellent job Mike did on all of our copper gutters/flashing and dormers.

John and Mary P.

We’ve been customers of Welsch Heating and Cooling for the past 40 years. There has never been one time when their service has not been exemplary!

Debbi H.

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Service & Emergencies: (314) 567-6347 Call Today!

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