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Emergency Services are Available 24/7!

  • We’re a Customer Service Company That Just Happens to do heating & cooling

    We’ve Been Leaders in the HVAC Industry Since 1977

    Learn More About Us
  • We’re Open 8am-8pm, 8 Days a Week!

    Nope, That’s Not a Typo!
    We’re Fast, We’re Friendly, We Got It Goin’ On!

    Request Your Service Today!
  • Savings We Work With Your Budget

  • We partner with the Alzheimer’s Association

    A Portion of Each of Our Service Calls Goes to the Alzheimer’s Association.

    Get More Details

St. Charles Heating & Cooling Services

Missouri’s Trusted HVAC Choice Since 1977

Since 1977, Jerry Kelly Heating & Air Conditioning has been committed to delivering top notch HVAC installations, repairs, and maintenance services, while never sacrificing customer experience or satisfaction. When the brutal winter and summer months hit our Midwest town, you want to be sure you can turn to your heating and air conditioning systems to provide the indoor comfort you need, and Jerry Kelly Heating & Air Conditioning is just the team to establish that reliability.

All of our HVAC specialists are certified by the North American Technician Excellence board, meaning that we are trained to quickly and successfully identify your problem and apply the correct, most cost-efficient solution.

Our Company History

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  • Satisfaction Guaranteed

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Why Choose Jerry Kelly for Your Home Service Needs?

  • ALL of Our Technicians are NATE Certified

  • We’re Here for You 8:00am - 8:00pm

  • We Offer a 12 Month Buy Back Guarantee

  • We'll Never Smoke or Swear in Your Home

  • There is NO Bait & Switch With Our Pricing

  • We Have Been in the Industry Since 1977

  • Clean, Uniformed, and Certified Technicians

  • 100% Client Satisfaction Guaranteed

More Reasons to Choose Us

Active In the Industry and in the Community

What We Do!

Quality Work Meets Unmatched Customer Experience

Jerry Kelly Heating & Air Conditioning is your one-stop shop in St. Charles for installation, replacement, repair, and maintenance of any and every kind of heating and cooling system known to our industry. As HVAC professionals, our team stays up to date on the latest innovations in indoor comfort control such as zone heating and cooling systems, ductless air conditioning, and various types of air filters and purifiers, just to name a few. Our services do not end at comprehensive HVAC knowledge and training; we are available for 24/7 emergency repair to handle your problem and return your home or business to the comfortable space it should be. Don’t brave the Missouri heat and cold alone. Call the experts at Jerry Kelly Heating & Air Conditioning!

We offer senior and military discounts!

Any Service Repair

Excludes trip charge. Cannot be combined with other offers. Not valid on prior purchases.

$ 39 % off

Furnace or Air Conditioning Tune-up!

*Cannot be combined with other offers. Not valid on prior purchases.

$ 89 % off

Jerry Kelly

4631 North St. Peters Parkway Saint Peters, MO 63304 Phone: 636.741.2010 Regular Hours: Monday – Sunday 8:00am - 8:00pm Service Area: We Proudly serve St. Charles & Surrounding Areas View Our Cities We Service

Hear From Our Past Customers!

  • Judy Dan did our yearly inspection did a great job in and out no major interruption of our daily life.

  • Vel M Korey; Keith and Domenic were extremely professional and helpful with our new unit. Customer service is number one with Jerry Kelly!

  • Gloria Dan was here today to perform a spring maintenance check on my Air Conditioner. I was very pleased with his friendly and personable customer service which included a professional inspection and cleaning of my AC. He also changed the air filter and answered questions that I had pertaining to my equipment and maintenance. Dan called my attention to some additional spring maintenance that I could do around my outside AC unit, which I appreciate. I appreciate a well-functioning heating and cooling system, but I also judge its quality by the service that the company provides after a purchase. Dan represented the company very well today!

  • Bob Dencker Marc was very knowledgeable polite and diligent. Very satisfied!

  • Mike Gibbons Marc was great. Very professional. Very efficient!

  • Nancy Peske Marc was very informative throughout the process, very thorough. I have been with Jerry Kelly for 9 years and have always been happy. I would recommend Jerry Kelly to family, friends, or anyone, and I have been.

  • Fazio Household Jerry Kelly is everything their adverts promise. We wish to applaud and recognize Rick L. and Bob K. for the great job they did in installing our air/heat unit. Both JK team member exhibited professionalism from start to finish. They were courteous, knowledgeable, and focused on the project. I was informed of all that would be taking place; I was assisted with setting up the Sensi app and given instructions for the thermostat. Upon completion, the best part of these two gentlemen is that they allowed for pictures of the installed units (inside and outside) so that my invalid husband could see what we purchased. Additionally, the work area was left in clean condition. We also acknowledge Steve who gave initial guidance in this process. Thank you so much Jerry Kelly.

  • Ashley hardebeck John Cody was super helpful walked me through the whole deal. Very nice and super happy he helped me.

  • Laura Mahnken Courteous,explained well,and did a thorough job!

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We Are a Service Company First

We take pride in giving our Customers the Very Best!