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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

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  • 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!

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  • 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.

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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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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!

  • Bruce Stevenson Tom D was very knowledgeable and professional. He agreed with what I thought the problem was and Kelly is going to take care of the problem with no hassles. As HVAC and other companies go Kelly is at the top of the list for honesty integrity and good workmanship. Recommend them to anyone.

  • Linda L. The tech for my routine AC tune up today was Korey. I found Korey to be very personable, courteous and professional. He performed the AC tune up, installed a new AB pad, and replaced my furnace filter. I had additional questions about the installation of a humidifier which I had previously discussed with John C.. Korey's responses to my questions further helped in my decision to add the humidifier to my system. It's nice to work with Jerry Kelly, they do not pressure you to purchase anything. The tech's provide you with the pertinent information, the decision is yours. I received a good report for my AC and would definitely give Korey 5 stars.

  • Truman Ransom Graham no complaints, did a great job

  • Angela T Korey T. came to our home to check our air conditioning system. He discovered the installation was not properly installed. Korey remedied the problem, he was through and explained all that he had done and was very professional. We couldn't be happier with Korey's service.

  • Barb Weston Graham was very thorough & professional in checking our AC unit.

  • Hsiu Liao Allen B and Ben S came to replace the old system in my town house on May 20. It was a Saturday. They called half hour ahead of time to let me know they are coming. They were very polite and professional and finished the installation within 6 hours It's a great system and I enjoy it very much during the hot weather. With the old unit, the temperature upstairs was always 6 degree higher than downstairs. Now it's only couple degree difference and I can have a good night sleep in the summer time. Highly recommend and Thank you.

  • Steve Flynn Graham was very professional

  • Jenny Domanic M. came out yesterday to figure out why our downstairs air wasn't working. He was very professional and dedicated - even working outside in a storm! He figured out the problem quickly and worked diligently to fix it. We are always impressed with Jerry Kelly's service. Thanks so much, the air is working great now!

  • COL (ret.) Karson Kosowski On 8 June 2017, two of Jerry Kelly's best representatives, Brandyn and Tyler, replaced my 2 1/2 ton central air conditioning unit and furnace. With the outside temperature pushing 90, my old unit shut down on 6 June and, in desperation, I called Jerry Kelly to see how soon they could get out to assess my problem and help to solve it. The need was urgent because that cooling unit services the area of the house where my son, who has Down Syndrome, has his bedroom. Well, to make a long story short, Ronen from Jerry Kelly arrived the next morning (7 June) and accurately assessed that the old unit would cost as much to repair as to replace and, when my wife and I decided to replace it, Brandyn and Tyler arrive the very next morning to do the new installation!! They estimated 5-6 hours for the work, but they were wrong! These two young EXPERTS had the job finished, thoroughly and completely cleaned up after, and the air conditioning from the new unit beginning to cool down my son's room BEFORE NOON! Every aspect of the new systems was explained to us clearly and succinctly and, before they left, they completed the forms necessary for us to get the Ameren and Laclede rebates for which we qualified. I would say that Jerry Kelly and its representatives more than satisfied out needs for quick, efficient, competent response to the cooling needs that we had for our son, but that would not come close to expressing just how appreciative we are of the service that Jerry Kelly Co. provided! It's likely that our 4 Ton unit has only a short life span left...but, if it does, Jerry Kelly will receive another call for help from us. I simply don't see how another company could have surpassed our first experience with them!

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