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O’Fallon HVAC Service

O’Fallon Heating & AC Repair Service

Jerry Kelly Heating & Air Conditioning O'Fallon, MO

Work You Can Trust in Your Neighborhood

Since 1977, we at Jerry Kelly Heating & Air Conditioning have been providing tens of thousands of customers the home comfort they’re looking for with the customer service they perhaps weren’t expecting. Sure, we absolutely will solve your O’Fallon HVAC problem with a money back guarantee, but this is just part of our objective. The other part is to provide a positive experience that makes this process easy on you and initiates a long-lasting business relationship, continued years down the line.

Comprehensive HVAC Services

We specialize in every area of home comfort. If your heater needs a quick fix, a NATE-certified HVAC technician from Jerry Kelly Heating & Air Conditioning can arrive at your O’Fallon home and solve the problem within minutes. And even if you’re building a new home or conducting a renovation, our Home Comfort Specialists can consult with you on the latest and greatest home comfort systems designed to provide even cooling and heating at maximum energy efficiency. Overall, we provide maintenance, repair, installation, and replacement of all HVAC systems, some which include:

Hiring Your O’Fallon Technicians

We are the premier choice for HVAC services in O’Fallon and we don’t expect you to just take our word for! We’ve successfully helped over 13,000 customers in the general St. Louis County area of Missouri, and we also offer several Jerry Kelly Guarantees to ease your mind and protect you in the rare event that our crew does not provide the perfect job.

Enlist our emergency heating and cooling services or call us at 636.757.8506 today! Our team of HVAC and customer care specialists are eager to restore comfort to your O’Fallon home!

“The HVAC technician was very knowledgeable & identified the issue within minutes of accessing my furnace. He was also able to alert me of maintenance concerns I didn’t know about it. I would definitely recommend Jerry Kelly and the crew to my neighbors!”
Robertson – O’Fallon, MO