T.F. O’Brien is a Full-Service Gas Furnace Contractor on Long Island, NY

If you’re in need of gas furnace maintenance, repair or installation in the Long Island, NY area, T.F. O’Brien Cooling & Heating can help. We’ve been taking care of the gas furnace needs of Long Island, NY residents for more than 80 years, and we want to help you, too. You can count on us to be your reliable, full-service gas furnace contractor.

T.F. O’Brien has been in the business of gas furnaces for more than eight decades for one simple reason – we believe in always putting the needs of our customers first. When you need a gas furnace contractor you can trust, rely on T.F. O’Brien. We employ superior craftsmen with great attitudes and work ethics. Our main objective is meeting your gas furnace needs with courtesy, professionalism and expertise. We’ll work hard to keep your Long Island, NY home warm no matter how frightful the weather outside may be.

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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.

"Exceeded Expectations Throughout"

"The installation of a new central a/c unit exceeded expectations throughout the entire process...a true professional team throughout.

Thorough explanation of available options, responsive scheduling, seamless installation in one day by a diligent crew that took great care to be neat and clean, including the complete removal of the old system.

Would highly recommend the T. F. O’Brien team for installation of a new A/C system."

Jim Graf - Satisfied T.F. O'Brien Customer

72 reviews

229 reviews

T.F. O’Brien is a full-service gas furnace contractor in the Long Island, NY area.

At T.F. O’Brien Cooling & Heating, we’re focused on our customers, and you can count on us to expertly meet your gas furnace needs. We always look out for your best interests and provide exceptional gas furnace products of the highest quality to ensure expected comfort and safety. The entire staff at T.F. O’Brien wants you to enjoy your experience working with us and to never have to deal with a hassle. Our guarantee is that you’ll be 100 percent satisfied with the work we do for you – and you won’t pay until you are.We take great pride in providing our Long Island, NY customers with the best furnace contractor services possible. We proudly stand behind our workmanship and our full lineup of gas furnace products, which are manufactured to provide you with the highest level of comfort and efficiency. When you install a new gas furnace with us, you’ll enjoy the greatest possible warmth and comfort for your family, all while enjoying improved energy efficiency. And better efficiency means that you’ll reduce your carbon footprint – all while enjoying savings on your utility bills! At T.F. O’Brien, we’ll work hard to make you happy and comfortable, and we’re not satisfied until you are.

T.F. O’Brien is a full-service gas furnace contractor for your Long Island, NY home.

At T.F. O’Brien, we want you to be completely comfortable in your Long Island, NY home. We 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 enjoy comfort all winter long in your Long Island, NY home when you choose T.F. O’Brien as your gas furnace contractor. We’re pleased to offer comprehensive furnace maintenance, repair and installation services. We proudly proudly serve all of Long Island, including Nassau County, Suffolk County, and Brooklyn. Just give us a call at 516.488.1800.

Click For Areas We Provide Furnace Services:

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

Everyone we dealt with at T.F. O'Brien was professional, knowledgeable and courteous. The work was done when promised at the price quoted in the estimate. There were no surprises. The installers, Michael and Kyle, were amazing. Our ductless system looks great and works beautifully. The entire experience exceeded our expectations. Thank you.

N.K. - Williston Park, NY