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or text us at 636.266.0216
  • 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

    We proudly support and participate in the St Charles Walk to End Alzheimer's & a portion of each of our service calls goes to the Alzheimer’s Association.
    Donated to Date: $58,806

    Get More Details

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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

How Can We Help You?

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!

Furnace or Air Conditioning Tune-up!

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

$ 89 % off

Any Service Repair

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

$ 40 % off

Jerry Kelly Heating & Air Conditioning

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!

  • Deb L. Last Saturday I had a new heater put in and had Joe K and John K install it. What a great experience we had with this two men. My heater was replaced and everything went smoothly. They cleaned up after themselves and worked non stop all day. Your technicians were such kind and such gentlemen that I enjoyed having them here. To say the least I had a great experience with your Jerry Kelly crew.

  • Ernie Just had the yearly service done for my air conditioning and as always it was done efficient, fast and professional. Graham explained everything in a friendly and understandable matter. Because of people like him I recommend Kelly to all my friends.

  • robert Allen B, Joe P and Dan S were involved in our purchase and install of our new furnace. They were all very polite and professional. They explained everything in great detail and made sure we were satisfied. We would recommend Jerry Kelly for all your heating and air conditioning needs

  • Marilyn A technician came for the annual maintenance and due to costly necessary repairs needed on my old furnace, I decided to purchase a new one. The very next morning, two Jerry Kelly technicians arrived promptly at the time I was told. I could not be more pleased with Joe K and John R, who expertly installed the new furnace and air cleaner. I am totally amazed at how well the two of them worked together as a team and how smoothly and efficiently the installation went. If the option was available to click on more stars than five, I would rate Joe and John and the service they performed with so many more stars! All of my questions were answered professionally and thoroughly. The furnace is operating perfectly and I'm so thankful for how well the air cleaner is performing already! A big thank you to the Jerry Kelly Company!

  • Pete Excellent Job! Very happy with the results. Matt and Curtis did an great job, they were here with all the shop made sheet metal in two hours from the order, installed, operational and cleaned up in three hours more. Very impressive!!

  • Anonymous On January 18th, technicians, Derek and Alex, replaced our furnace and air conditioner. They were prompt and very professional. They explained their work very well and answered all questions. My husband and I were very pleased with their service and would recommend them to friends and family.

  • Linda Derek, Matt, Alex, and Curtis did an outstanding job installing our new AC/Furnace. They worked very hard to get the job done and worked well as a team. All my questions on maintenance and care were answered. I appreciated the Ameren and Spire rebate forms they had ready to file on the new system. Thanks for the quality service.

  • Julie Matt and Curtis just left after installing a new system for us. They were here at 8:30am and it's not even 3pm and everything is done! They were courteous, fast, friendly, thorough in all regards, and incredibly knowledgeable about all aspects of the new system. They were also very organized in letting me know the details of future follow-up for Ameren rebates, county inspection, filter replacement, etc. We bought this house almost 3 years ago, and we're thankful that the previous owners had a Jerry Kelly installation and we resumed their maintenance agreement. We noticed our unit had problem yesterday, called in, and we were bumped to the head of the line. Shane was out here within an hour of my call, and today we have a brand new system. Excellent company to work with and I highly recommend them!

  • Colbert Jeff and Brandyn did a fantastic job of replacing our unit They were professional explained each step of the process answered questions and totally left everything clean and neat

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