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  • 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!

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  • 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!

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

800 N 2nd Street Saint Charles, MO 63301 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!

  • Mike Tuttle Tom Duncan did an outstanding job with the service call. Changed the filters in the system without being asked. Thank you Tom!

  • Linda L. John C. was a very courteous, knowledgeable and respectful technician. He inspected my furnace and answered all of my questions regarding humidifiers. I purchased filters to have on hand. He was short one filter on his truck and told me he would have it delivered the same day; the filter was indeed delivered that afternoon. As a courtesy he gave me a follow-up call to make sure I had received the filter. Thank you for your professionalism.

  • William Stringer Saturday we were in need of Safety Checkon our Furnace (New) because the CO2 Monitor went off during the day. We had the pleasure of having your Service Tech. Jessica arrive eto check out the problem. After a very thorough pass through our home from room to room several time including the room housing the furnace, she found no issues indicating a problem with the furnace. But she switched out the CO2 monitor just in case just in case that was the problem. Which it appears it was because we've had no further issues and we were able to get a Good Night Sleep. Thanks for being even on weekend. Your a Great Company.

  • Larry S. I called because the flame sensor on our furnace was causing issues. I was going to pick one up and just wanted the part. I was told that the service was included in the warranty and they would take care of it. Got an immediate appointment and the problem was solved. Tom Duncan answered the call and had the problem fixed in no time, but he discovered that an adjustment needed to be made to keep the problem from recurring. He took care of that, noticed that our humidifier filter needed changing and took care of that too. All for just the cost of the filter! These folks really know their stuff and are so easy to work with! Couldn't be happier!

  • Brad Dan was extremely helpful with his advice and professionalism!

  • De Splinter Within 30 minutes of talking to John Cody, he was knocking on my door. He was happy and upbeat even though he was working on a holiday. He took the time to listen to me and got our heat back up and running. I highly recommend Jerry Kelly to all my friends and family. Thank you for sending him to my house.

  • Christine M. Jerry Kelly came out and did a maintenance check on my furnace today. Matt was friendly, informative and helpful when I had a few questions about replacing the filters and the condition of my existing water heater. I appreciated his input and no-pressure attitude. Thanks for your help!!

  • always professional service The technician John C. was very friendly and seemed happy to spend time explaining how my Heating and cooling system works and how to keep it running safely and efficiently. He was helpful in checking the condition of my hot water heater as well and had suggestions for determining when it needs to be replaced. I have been very happy with all of the service that we have gotten from Jerry Kelly technicians over the past few years and often recommend them to others.

  • Barb My mother's humidifier was leaking. Tom Duncan arrived and worked on the unit until he resolved the problem. Tom was very professional and answered all of my questions. Very pleased with his service.

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