Air Conditioning Contractor in Nassau County, NY

long island air conditioningSummertime in Nassau County, NY can get humid and uncomfortable. Nobody wants to deal with feeling hot and sticky once the outdoor temperatures start to rise. That’s why so many people rely on the cool comfort of air conditioning to get them through the sweltering summer days. Whether you have an air conditioning system already installed in your home, or you’re considering a new one, you’ll want to make sure the company that maintains, repairs or replaces your system is a reliable one.

When Mother Nature turns up the heat in Nassau County, you need an air conditioning contractor who can help you in a hurry. That’s why you should call T.F. O’Brien Cooling & Heating. We’ve been providing expert air conditioning services to residents in the Nassau County area for nearly 80 years, and we want to help you, too.

We’ve been in the home comfort business for nearly 80 years because we always put the needs of our customers first. When you need a Nassau County air conditioning contractor you can trust, count on T.F. O’Brien. Our technicians are superior craftsmen with great attitudes and work ethic. Our constant goal is to meet your cooling needs with courtesy, professionalism and expertise.

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Call T.F. O'Brien Cooling & Heating at (516) 488-1800 or complete our short form below and a representative will reach out to you.

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    "Completely Satisfied"

    "I was completely satisfied with the professionalism, quality, and courteousness of your service. I will continue to call on and recommend you all future AC/Heating needs. Thank You."

    - T.F., Baldwin, NY

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    85+ years of service

    To Your Success


    Five Stars

    1,767 reviews



    Five Stars

    1,183 reviews

    T.F. O’Brien review scores as of 4/12/24

    At T.F. O’Brien, we offer Nassau County residents a full range of air conditioning services.

    tfo areas servedWhen you work with T.F. O’Brien for your air conditioning needs, you can feel confident that you’ve chosen an AC contractor who cares about you, your family and your Nassau County home. We will treat you with respect, and will answer any questions you might have about the work that needs to be done. We’ll work with you to make sure you receive the very best air conditioning repair, maintenance or installation that money can buy. At T.F. O’Brien, our priority is and always has been your comfort. We’re pleased to provide you with a wide range of services, including:

    We want to provide the residents of Nassau County with the best air conditioning system possible. We proudly stand behind our workmanship and all of our air conditioning products. At T.F. O’Brien, our ultimate aim to make you happy and comfortable, and we’re not satisfied until you are.

    T.F. O’Brien wants to be your Nassau County air conditioning contractor.

    At T.F. O’Brien, we’ll look out for your best interests and provide exceptional air conditioning products and services of the highest quality to ensure expected comfort and safety. Our entire company is focused on you, and we strive to ensure that you enjoy your experience working with us and never have to deal with a hassle. We guarantee that you’ll be 100 percent satisfied – and you won’t pay until you are.
    When you need an air conditioning contractor in Nassau County, T.F. O’Brien is ready to assist you. Just give us a call at 516.488.1800.