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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

They did a great job on installation of new duct work & installing furnace with new outdoor unit.

RHK

Very fast installation Our gas furnace replacement was completed in less than 2 hours! Everything was cleaned up and working in about half the time I expected.

Very fast installation

Service of the highest quality and friendly service personal

James W.

We have been using Welsch for over 20 years and have been impressed with every aspect of their service and products. Everyone is knowledgeable, friendly and always ready to help. We always highly recommend them to our friends.

PN

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

More Reviews

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

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