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    R410A Refrigerant: What's Next

    Learn about industry changes to air conditioner refrigerant and what St. Louis County homeowners can expect after the R22 refrigerant phase out. Read more!

    What Is A SEER Rating?

    It's one of the most important factors you should take into account when you're choosing a unit. So what is a SEER rating and what does it mean?

    Preventative Maintenance Benefits

    Spring snuck up on us a little early this year in the St. Louis area, which is all the more reason to start getting ready for the cooling season! Get the tips!

    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 >>

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    O'Fallon man feels lucky to be alive
    Vincent Celano said he felt lucky to be alive after recovering from carbon monoxide poisoning. Emergency crews rescued Celano, 54, after he passed out in his O'Fallon home. Celano spent the night at St. Luke's in Chesterfield.
    Read More >>
    Family, strangers make a difference
    Dale Franklin never thought the simple ringing of a bell would sound so good. But when Dale and Belinda Franklin's daughter, 6-year-old Izzy, rang a bell in early February to signal the end of her chemotherapy, the tone also signaled a new chapter for the family.
    Read More >>

    Check Out The Latest On The Jerry Kelly Blog
    A Guide to Heat Pump Efficiency Ratings for St. Louis Area Homeowners

    Earlier this week we blogged about air source heat pumps and what features to look out for if you’re interested in installing one in your home. In addition to the features we discussed in that post, one of the most important things you’ll want to consider is the heat pump’s efficiency rating. Heat pump efficiency [...]

    Friday 17th May, 2013 READ MORE >>
    Installing an Air Source Heat Pump this summer? Consider these Features

    Although a central air conditioner is the most common type of cooling system found in homes in the St. Louis area, one energy-efficient alternative that’s growing in popularity is an air source heat pump. This type of cooling system is very similar to a central air conditioner, but it is also used as an extremely [...]

    Wednesday 15th May, 2013 READ MORE >>
    How to Use SEER Ratings to Calculate Future Savings

    When you’re choosing a new air conditioner, one of the most important things you’ll have to consider is the SEER rating of your new system. SEER ratings describe the efficiency of air conditioners, and they play a direct role in a unit’s operating costs. So let’s take a look at how you can use SEER [...]

    Friday 10th May, 2013 READ MORE >>
    4 Ways to Improve Air Handler Efficiency

    An air handler is one of your cooling system’s components that can have a big impact on your home’s energy consumption. The harder your air handler has to work, the higher your energy bills will be. So how can you ensure that your air handler continues to run efficiently in your home? Follow the four [...]

    Wednesday 8th May, 2013 READ MORE >>
    Why Regular Maintenance Is So Important To Your Cooling System

    What is Sick House Syndrome and Why Should St. Louis Homeowners Know About It?
    Although Mother Nature has its own way of cleaning the air outside, the same can't be said for our homes. In fact, over the past 30-40 years, our homes have become more and more susceptible to polluted air — a phenomenon known as sick house syndrome.

    So what is sick house syndrome and how can you protect your family from its harmful effects?
    Learn More >>

    What is a Home Air Cleaner and How is it Different Than a Filter?
    Many St. Louis area homeowners are familiar with air filters and how they help protect your furnace from airborne particles. But did you know you have another option for protecting your furnace that also helps keep your family healthy? It's called a home air cleaner, and it's a great way to improve the air quality in your home.
    Learn More >>

    Gas Furnace Maintenance Tips for St. Louis Area Homeowners
    Now that we've settled into the heating season here in the St. Louis area, it's a good time to talk about gas furnace maintenance and what you can do to keep your unit running smoothly throughout the winter.
    Learn More >>

    How Does a Heat Pump Work?
    Although gas furnaces are the most common type of heating system found in St. Louis area homes, heat pumps are another great option for anyone who is looking to save energy and lower utility bills.

    These highly efficient units can actually be used to both heat and cool your home. Since it is winter, we'll focus on explaining how a heat pump can heat your home, but it's worth noting that the process is simply reversed to cool your home during the summer.
    Learn More >>

    Jerry Kelly Testimonials

    A NATE Certified Jerry Kelly Service Technician arrived just one hour after Tracey called to have her broken air conditioner fixed. She was so happy that she wanted to tell the world. See more >>


    From Our Customers, Directly To You
    The service with Jerry Kelly is always top notch. Our tech was wonderful, very informative and courteous.
    -Stephanie T.

    The technician was so nice — worth every penny! Also, he wore booties and I love that.
    - Kim T.

    Tech was most pleasant and informative one I have had of any type of tech I have had out here. Great appearance too! Means a lot!!
    - Todd D.

    Very pleased with furnace/a/c and glad we had both systems installed at same time. Techs are always impressively efficent and polite.
    - Michael V.

    Both systems run fine. Your company is always right on time, pleasant and very helpful. Thank you.
    - Kathy C.

    Thanks for coming out on short notice!! Your business hours are great.
    - John W.

    Your serviceman was the most courteous and knowledgeable. He's a "keeper".
    - Artys G.

    Local Reviews

    Rated 4.9 out of 5 stars based on 59 customer reviews

    Good experience overall





    Exceptional Service, from Beginning to End!




    I caught the salesman, Bryan Jones, on his day off and he still took the time to give me an estimate and get everything lined up. The installation was very professional and fast. Thank so much for rescuing us from another miserable summer. Mary & Steve


    great service





    new furnace/ac





    Good service




    Had a routine systems check. Mike explained everything he did. Very knowledgable.


    Recent Jobs

    Shane F.

    no ac

    Near Lemonwood Dr, St Peters, MO 63376

    Jeff T.

    we work in the rain and the dark our customers deserve the best

    Near Mexico Rd, St Peters, MO 63376
    we work in the rain and the dark our customers deserve the best

    Shane F.

    no ac

    Near Brookford Dr, St Charles, MO 63303

    mike f.

    Tuning up air conditioner for summer. Tuning up air conditioner for summer.

    Near Palladio Park, Ofallon, MO 63368

    Will L.

    no cooling, repairing mice chewed wires

    Near Universal Dr, St Peters, MO 63376
    no cooling, repairing mice chewed wires

    Darin A.

    Estimate given to replace an 8 year old Heil system with multiple leaks. It's a shame the customer doesn't have the warranties Jerry Kelly offers. Estimate given on another Jerry Kelly Emerald Comfort System

    Near Jacobs Cir, Ofallon, MO 63376

    Mike b.

    check a/c

    Near Briar Creek Dr, St Charles, MO 63304

    Shane F.

    no ac

    Near Brook Mont Dr, Ofallon, MO 63366

    Jeff T.

    ac repaired

    Near Westbridge Dr, St Peters, MO 63376

    Scott E.

    Just got done installing to jerry kelly emerald series AC and coils and reinstalling humidifiers

    Near Rosepointe Ct, Ofallon, MO 63366

    Matt H.

    Just installed a new Jerrykelly Emerald system.

    Near Muegge Rd, St Charles, MO 63303

    michael M.

    Emerald 13 seer air conditioner tune up

    Near Chalin Dr, St Peters, MO 63376
    Emerald 13 seer air conditioner tune up
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    Jerry Kelly Heating and Air Conditioning, Inc. | 800 N 2nd Street | Saint Charles, MO  63301 | 636-757-8506
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