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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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  • 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!

  • Rita Marc and Lonnie were great. They were courteous, professional, and patient! They even waited for me to get home as there was some miscommunication between my husband and me regarding staying at the house! Jerry Kelly has served us well for years.

  • Mary Gross Marc and Lonnie came for routine service of my A/C. Both were professional and addressed my many questions. Lonnie showed me how to control the A/C in different rooms by opening and closing damper switches in my ductwork. I've lived here many years and was never aware of those damper switches. Marc was very courteous and showed me some minor maintenance I needed. I am very happy with my experience with JK.

  • Carol Becker Mark and Lonnie did a great and thorough job with the routine maintenance of my air conditioner, Their customer service skills are outstanding!

  • Dennis Allen B and Ben S replace my 20yr old system yesterday and did a fantastic job. They were professional, friendly and courteous. They explained the new system very well and made sure I was comfortable with everything. We had bids from three HVAC companies and chose Jerry Kelly because of their pricing, warranty and no pressure sales. Highly recommend!

  • Les Dominic came to do our bi-annual maintenance and we were very happy with his service. We have been customers for 30 years and have never been disappointed.

  • Laura G A special thanks to Cody H. for servicing my A/C and answering my questions!

  • Unknown John Cody came to perform my AC tune-up. He was friendly, did a great job and very neat. The team at Kelly is great and provide excellent service for the products they install. Never have questioned my decision to go with them for my new HVAC system 2 years ago. thanks John

  • Ty Bingaman Tom Duncan serviced my AC today and was a very curious and knowledgeable young man. He checked everything I mentioned and services my AC very well. 5 Stars for Tom ----- Thanks

  • Matt Middleton On Friday 4/7/17, I was visited by Mike F. to look at my furnace that stopped working. After looking at my furnace Mike called me down to explain the issue and potential fixes. Unfortunately for me, the motherboard was broken and it was going to cost close to $1,000 to fix after parts and labor. Mike also explained that due to the age of my furnace (21 years old) there were additional issues that could arise in the near future. Mike sat me down, explained the difference in pricing between simply fixing my current furnace or purchasing a new one. As somebody who works in sales, I can tell you that Mike did an exceptional job using a consultative approach to the decision. In no way did I feel pressured to choose one option over the other, but, he explained the benefits of both in a way that made the decision easy for me to purchase a new furnace. This is not an easy task to ask somebody to spend $4,000 at the drop of a hat, especially when they were hoping for a $300 repair bill. However, due to Mikes professionalism and approach, I was very comfortable in purchasing a new furnace. The next day, John and Nick came to install the furnace and they were extremely professional and courteous the entire time. When finished, they walked me through the job they did (which was great) and showed me how to work the new thermostat. John even came back 15-minutes after he left because he remembered he left my hot water heater in the pilot position. My overall experience with Jerry Kelly has been a great one. I feel that professionalism was used from the moment I made the appointment to the moment when my new furnace was installed. I will be sure to refer anybody I know to Jerry Kelly for HVAC and will continue to use your services in the future.

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