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Full-Service Furnace Contractor on Long Island

You depend on the furnace in your Long Island, NY home to keep you and your family comfortable all winter long. That’s why it’s good to know you can depend on T.F. O'Brien Cooling & Heating to help you with any of your furnace needs.

Your Trusted Gas Furnace Experts

When you reach out to us for gas furnace services at your Long Island residence, our expert team will begin with a thorough heating assessment, taking into account all the factors unique to your home’s heating needs. This includes the location of your home, the number of doors and windows, and the likely times you’ll need heat distributed evenly throughout your space. With our extensive HVAC experience on Long Island, we’ll provide customized recommendations, calculating the necessary British Thermal Units (BTU) and offering furnace options that ensure efficient, long-lasting warmth. Our goal is to find the perfect system tailored to your home’s specific requirements for both comfort and energy efficiency.

We think we’ve been in the business of helping people with their gas furnaces for such a long time because, quite simply, we firmly believe that we should always put our customers first. We employ superior HVAC craftsmen with great attitudes and work ethics. Our top priority is meeting the furnace needs of your Long Island, NY home with courtesy, professionalism, and expertise.

Get Started with an Estimate

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

    4.9

    Five Stars

    1,767 reviews

    Google

    4.8

    Five Stars

    1,376 reviews

    T.F. O’Brien review scores as of 10/4/24

    For the most complete list of gas furnace services in Long Island, NY, choose T.F. O'Brien.

    tfo areas servedWe are a full-service furnace contractor. For your convenience, we offer a comprehensive listing of furnace services to meet all of your needs. These services include:

    You can trust T.F. O'Brien to be focused on our Long Island, NY customers and their furnace needs.

    You can enjoy comfort all winter long in your Long Island, NY home when you choose T.F. O'Brien for all your furnace needs. We’re pleased to offer comprehensive furnace maintenance, repair and installation services. We proudly serve all of Long Island, including Nassau County, Suffolk County, and Brooklyn. Give us a call at 516.488.1800 and we will be more than happy to help you.



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    We provide furnaces on Long Island, including Nassau County, Suffolk County and the following areas:


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