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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

  • Angies List 2015
  • Angies List 2015
  • Angies List 2015
  • Super Service Award
  • Angies List 2013
  • Member of Service Roundtable
  • National Comfort Institute
  • ACCA
  • Walk to end alzheimers

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!

  • Mollie T Korey T. did a tune up on my AC unit today. Very polite and informative

  • Kim Just had my unit serviced. Graham was on time,efficient and answered all questions I had.

  • Brenda Graham was patient answering all of our questions and helped us out so much!

  • Michele and Greg McFadden All I can say is WOW. AT 5am on a Saturday morning with my husband out of town I awoke to a terrible "hot" smell. Ended up calling 911. The Fire Department came lights and sirens blazing. They determined we had an issue w our furnace. Within a couple of hours Kory was here, setting up our order for a new furnace. He was exceptional, extremely polite, perfectionist and an absolute delight. His drawings were perfect leading to a perfect install. Because of an oddity with our air conditioning and furnace coil hookup, we needed to wait a couple days for a new furnace however he left me with heat by setting up some space heaters. A couple days later , Derek and Alex were out to install our new furnace! They were also extremely polite and the install was perfect! What a bunch of great guys! Jerry Kelly is definitely our new HVAC service company. Thank you all so much

  • Graham Graham, a polite and personable young man, did a wonderful job administering spring cleaning/service to our system. He covered all aspects of the service, knowledgably answered my questions, offered options, and did his job quietly with very little disruption to me. I appreciate this last aspect most of all. I trust Jerry Kelly techs to always have a respectful attitude and do a trustworthy job. Graham clearly exemplifies the Jerry Kelly ideal. Thank you.

  • Kenneth Harper I had an issue with my furnace running, but no heat. Your service technician, Dan T., was just here to remedy the situation. Very informative about the issue and what he was doing to fix it. He took the time to explain what the defective part was and how it functioned. Excellent service and communication skills. Further proof that my choice of Jerry Kelly for my system was the right choice. Thank you.

  • Keith Graham was friendly, knowledgeable and efficient. He was most helpful and explained everything.

  • Nick Graham was very helpful and knowledgeable! Great dude!

  • Ann & John King Josh was great. Very personable, explained what he was doing, asked questions and worked quickly.

Jerry Kelly Blog

Industry news, advice, and more!

We Are a Service Company First

We take pride in giving our Customers the Very Best!