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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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  • Satisfaction Guaranteed

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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!

  • Burl & Vicki E Brandyn & Tyler arrived on time and installed a new system in no time. They were professional, courteous and willing to please. Thank you

  • Joe K. & Ben S they were very professional, clean up after them self and answer all question that i had.

  • Todd B Domanic arrived to my house on time and helped me understand my options. He was patient, giving me time to process the information and never pushed to do more as I have experienced with some people. Thanks Domanic!

  • Trent Thank you John Cody for taking care of our a/c system. John was very professional and polite and took his time to make sure all of questions were answered. Thank you Jerry Kelly for always providing excellent service.

  • Jamie Had a new system installed today. Allen B, Qui L and Malik did a great job. All 3 were very courteous and answered all of my questions. Was also thrilled that I was able to get an inspection and an installation done on the weekend.

  • Chels Brandyn and Tyler did an amazing (and quick) job to get my house running again! Thanks!

  • Bob and Terry Tom Duncan just left and was very professional, personable, and knowledgeable ... as are all the Jerry Kelly people we've dealt with through the years. Air going out during hot weather and having an asthmatic in the house was a bit concerning but a tech showed up late Friday night and Tom can Saturday morning to set us straight quickly. That's why we depend on Jerry Kelly. Thank you!

  • William Brown John Cody did an excellent job doing our Summer Check Up. He was here on time, hit the ground running and was very professional and did a comprehensive check of all our equipment. All of the Kelly Technicians are of the same cut of the cloth. They always do a great job. Thank you!

  • Jen B Tom D was fantastic! Very efficient and knowledgeable. Great customer service from the office and Tom. Thank you!

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We Are a Service Company First

We take pride in giving our Customers the Very Best!