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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 >>

    St Charles Heating & Air Conditiong Specialists

    Jerry Kelly Heating & Air Conditioning: Your St Charles AC Repair & Installation Contractor

    Check Out The Latest On The Jerry Kelly Blog
    How do you Figure out the Best Air Filter for Your Home? 3 Questions to Ask

    St. Louis area homeowners often ask what the best air filter is for their home. The truth is that every home is different, and the right filter for you can depend on a number of different factors. If you want to figure out the best air filter for your home, ask yourself the three questions [...]

    Wednesday 22nd May, 2013 READ MORE >>
    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 >>
    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 60 customer reviews

    Great Service and follow-up.




    Installation of a new furnace/AC a few weeks ago was the best experience we could have had under the circumstances. Follow-up by Eric was top-notch as well. Thank you for proving others wrong who told me not to call Jerry Kelly Heating and Air Conditioning.


    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





    Recent Jobs

    Mike S.

    precision air conditioning tune up on Jerry Kelly equipment

    Near Elm St, St Charles, MO 63301

    shawnm@jerrykelly.com

    Repairing a malfunctioning air conditioner

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    John W.

    air conditioning cleaning

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    Shane F.

    cleaning

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    michael M.

    Emerald 14 seer air conditioner tune up

    Near Lacklink Rd, St Louis, MO 63114
    Emerald 14 seer air conditioner tune up

    shawnm@jerrykelly.com

    Repairing a malfunctioning air conditioner

    Near Oak Creek Meadows Ct, Chesterfield, MO 63017

    bryanj@jerrykelly.com

    Frozen AC system due to blocked airflow

    Near Woolwick Ct, St Charles, MO 63304

    Doug M.

    Starting up and checking the charge on an air conditioner after a cold weather installation.

    Near N 2nd St, St Charles, MO 63301

    Shane F.

    no ac

    Near Homefield Gardens Dr, Ofallon, MO 63366

    shawnm@jerrykelly.com

    Repairing a malfunctioning air conditioner

    Near Carman Ridge Ct, Ballwin, MO 63021

    Shane F.

    no ac

    Near Elmdale Ct, St Peters, MO 63376

    Scott E.

    Just got done installing a jerry kelly emerald series system with a single stage gas furnace, air conditioner, coil, humidifier, and combustion air grilles in a closet

    Near Brittany Cove Dr, Cottleville, MO 63304
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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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