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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!

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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.

    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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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!

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

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 W Dominic M was great. He went right to the problem and fixed it so I am delighted. He kindly answered my questions. He was quiet, professional and efficient. I have to say that has been true of every Jerry Kelly repairman that has serviced my system.

  • Heather Graham and Greg were rock stars! They were efficient and polite. They went above and beyond to check all systems and options for my service/replacement today. They were honest in their recommendations and treated me with respect. I am always happy to do business with the Jerry Kelly team!

  • James A. Piazza Domanic M. was very Pleasant and professional. He always wore his shoe covers when he was in my home. He kept me up-to-date as he was working and explained, what he found that needed to be repaired or replaced and told me upfront what the cost would be and also informed me of different options and programs available with Jerry Kelly to keep my AC and heating equipment maintained throughout the year and what the cost would be as well as alternative suggestions about repair and equipment replacement options for the future as well as his honest professional opinion in regard to The "best"Long turn economical approach for me as a customer. He represents Jerry Kelly in a positive manner.

  • Connie C. John Cody - polite and answered all the questions I had and was professional.

  • Mary Truman Domanic M checked my air conditioner he was polite and friendly and did a great job.

  • Beverly O. I was very pleased with the service I received. A technician came out the next morning and within a short period of time had diagnosed the issue. The next day my new system was installed. The installers, Jeff L. & Curtis I. were outstanding They worked efficiently and in an organized manner. They kept me well informed of the progress they were making and fully explained my new system to me. I highly recommend this company.

  • J. Garvin Had a new air conditioner and heating system installed with a one day turn around time. Allen B. and Ben S.were my installers and did an awesome job. They worked non-stop all day to get everything finished in one day! They were professional and worked very efficiently. They arrived on time and cleaned everything up when they were done. They walked me through all they did and explained it all. It turned out to be a great installation due to Allen and Ben. I would recommend Jerry Kelly to all of my friends and to ask for Allen and Ben. Thanks for a pain free experience!

  • Brian Ryan R. came to the home, he was on time, professional and completely inspected the A/c unit. Ir turned out to be a warranty part so no charge. Thanks Jerry Kelly.


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