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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

From the moment we requested an estimate of our needs and the costs, we were satisfied. The technicians were friendly, competent and cleaned up…there was no mess. They worked in a timely fashion and we were able to carry on our regular routines without hampering their work.

JMGM

I want you to know how pleased we are that we chose your firm to do the work that was needed in our home.  My husband and I are so pleased with every aspect of the job.  Our very noisy, over sized furnace, that was located in a closet outside...

Carla G.

Welsch Heating and Cooling has always been a great company for my family’s HVAC needs. Pure professionals!

JDO

I could not be happier with my decision to use Welsch.

Jeff C.

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.

More Reviews

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

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