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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!

  • Cindy Graham was very professional and friendly and solved our a/c problems quickly. We’d be happy for Graham to service our needs anytime!

  • Mark Korey did Great! Checked out unit, gave us new filters, was very pleasant. Jerry Kelly's people are always awesome to work with!

  • Joe F. Korey was great and spent the extra time to show me how to clean the outside A/C unit to keep it running at peak efficiency. He showed up on time and was very knowledgable and professional. Great service as always!

  • Bernie Seeck Graham came to my residence for service. He was professional, knowledgeable and polite. Exactly what Jerry Kelly represents.

  • Marylee Graham was quick and professional. He found the problem in a timely manner and was able to fix it. Appreciate the quick service due to trying situation.

  • Gary Graham was efficient, courteous and great to work with.

  • Pete Arrived quickly, Graham was professional and knowledgeable. Thank you!

  • Harrison Graham was a very respectful, polite, and knowledgeable technician. He answered all my questions and maneuvered through my messy basement without any complaints. I give him a 5 star rating. Mrs. Harrison

  • Chilson Graham did everything efficiently and was very helpful in answering any questions I had. Great job!

Jerry Kelly Blog

Industry news, advice, and more!

We Are a Service Company First

We take pride in giving our Customers the Very Best!