Renaud Brothers Heating & Cooling
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Hours of Operation: 24 Hours a Day, 7 Days a Week
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Renaud Brothers Heating & Cooling - AM: Cristin Daugherty

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Heating and Cooling Contractor in St. Charles, MO

Keep your HVAC unit running like new by calling us when you're looking for a heating and cooling contractor in St. Charles, MO. Renaud Brothers Heating & Cooling is the licensed, bonded, and insured HVAC company you can trust for superior repair and maintenance. Whether you need duct cleaning or thermostat repair, our professional technicians make sure that your unit runs smoothly. Reach out to us today and receive 10 percent off your first service call.

Do You Need an Experienced Air Conditioning Contractor?

At our company, we know how frustrating a broken AC or heater is. No one enjoys sweating or freezing and being unable to change it with a simple adjustment of the thermostat. You can be confident that our technicians will arrive promptly and work quickly to resolve your AC problem. Our team is available 24 hours a day, 7 days a week because HVAC units don't always wait to break down during convenient business hours. Don't hesitate to call us as soon as you notice problems with your unit. Sometimes, bigger, costlier catastrophes can be averted with early attention.


New HVAC Unit in St. Charles, MO

Your Full-Service AC Company

From affordable AC repair to tune-ups, our technicians have the expertise you need to enjoy indoor comfort. Our services include:

  • Commercial HVAC Repair
  • Indoor Air Quality Testing
  • Testing and Diagnostics
  • Residential HVAC Repair


Whenever your HVAC unit is acting up, we're the only call you need to make. Additionally, we'll perform a free system check when you call us for air duct cleaning. As your contractor, we keep your complete satisfaction our number one priority.


The Heating and Air Company You Can Trust

When you need an AC contractor, turn to us for comprehensive professional attention. We don't just get your home's air flowing again; we improve its quality to help keep your household healthy. Given the many hours people spend indoors, it's important to make sure that interior air quality isn't compromised by pollutants and allergens. Our air duct cleaning is the right choice to help prevent illness.

In addition, our AC maintenance will keep your units running smoothly, for cost-efficient, comfortable air. And in the winter months, we provide the heating service you need to keep warm. Whichever of our many services you need, you can trust our air conditioning company to get the job done right and get it done fast.

Contact us for all of your HVAC unit's heating and cooling repairs. We proudly serve customers in St. Charles, O'Fallon, Chesterfield, Cottleville, and Troy, Missouri.