Office hours are from 8 AM--8 PM 7 days a week. If you complete this form during non-business hours, we will get back to you as soon as the office opens!
||Jerry Kelly Helps Family in Need
Last fall, the family discovered that bad air quality in their home was causing Lizzy to get constantly sick. When Jerry Kelly heard about it, they did more than offer sympathy. They drew upon their expertise, and took action.
Learn More >>
||Yes, Virginia, There are Polite Technicians
I had just about given up on seeing clean cut, polite technicians and installers in our industry. Many people say they don't exist. Learn More >>
About Jerry Kelly Heating & Air Conditioning
We will earn your trust — and then keep it
Jerry Kelly Heating and Air Conditioning is one of Missouri's most trusted heating and cooling contractors. Since 1977, we've been providing comfort solutions for residential homes to St. Charles and the surrounding West County area. Our core belief above anything else is to satisfy every customer and to stand behind the products and services we provide. This simple concept has created the best warranties in the area and contributed to the wonderful reputation we have today.
Whether you need service or replacement on a furnace, heat pump, water heater, air conditioner, or other HVAC system, our NATE and NCI certified technicians have the professional expertise to get the job done right — and get it done the first time.
In order to remain the best in the HVAC field:
- All Jerry Kelly employees undergo continuous training
- All technicians are certified in excellence and safety
- Actual people answer the phone, no matter what time of day or night
36 Years Of Heating and Cooling
After working in the heating and cooling business for twelve years, Jerry Kelly and his wife Janet opened their own HVAC company in 1977. They started Jerry Kelly Heating and Air Conditioning in a white and green brick building in the historic Frenchtown district of Saint Charles, Missouri. With five technicians and a lot of used trucks, Jerry and his team forged a tradition that still stands to this day, "We don't just say '24-hour service', we follow through."
A commitment to your schedule, your needs
This same building remains our home, and we've added our custom duct fabrication facility down the street. Jerry is now retired, but Jerry's daughter Jill and her husband Steve Miles are involved with every aspect of the business. Jerry and Janet Kelly are enjoying their retirement, but still play important roles in the company and the St. Charles community. And three of the five original technicians remain a part of our 50-plus team of managers, install techs, service techs, customer service representatives, dispatchers, and comfort specialists.
The Jerry Kelly Difference
|Normal Hours of Operation
8 a.m. to 8 p.m.
Seven Days a Week!
24 hour service and installations always available
Jerry Kelly Heating and Air Conditioning
800 N. Second Street
Saint Charles, MO 63301
There's a difference you'll feel immediately with Jerry Kelly
An important tradition here at Jerry Kelly Heating and Air Conditioning is the commitment to round-the-clock residential service. We're there when our customers need us! We do this by offering a TRUE 24/7 service, offering the same great rate from 8 a.m. to 8 p.m. seven days a week*, and having actual people answer your calls - no matter when you call.
When you choose Jerry Kelly Heating and Air Conditioning, you are choosing a company that has built its reputation on the service we provide. We stand behind our service, our installation process, and our equipment. Therefore, we offer these guarantees and warranties to you, our customers:
1-Year Buy Back Guarantee
- If you're not happy with your new unit, we'll buy the unit back from you — no matter what the reason!
Lifetime Replacement Warranty
- On our standard installations, if for any reason your compressor or heat exchanger fails, your unit will be replaced at no charge. Your new Jerry Kelly heating and cooling system is guaranteed for as long as you occupy the home.*
Lifetime Service Warranty
- We offer a limited lifetime warranty on most demand service repairs for as long as we regularly maintain the equipment.
12 Year Parts and Labor Warranty
*Rates subject to change based on workload
- On our standard installations, we warranty all our work and equipment for twelve years, as long as it is properly maintained.*