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Local HVAC Services in Great Neck, NY

Elevating Comfort in Great Neck Homes: T.F. O’Brien

We serve the folks that live in Great Neck, NY, one of Long Island’s most sought-after communities—renowned for its affluence, diversity, and exceptional quality of life. Another one of those areas along the North Shore, this vibrant area is made up of nine incorporated villages and is home to approximately 40,000 residents who enjoy a suburban lifestyle with many urban conveniences at hand.

Great Neck Residents are Long Island Homeowners with High Standards

With its tree-lined streets, architecturally noteworthy homes, and a strong sense of community, Great Neck attracts families and professionals alike. A majority of the residents own their homes and are deeply invested in the community and their neighborhoods. There is an expectation for quality in every aspect of homeownership, including their HVAC service provider.

Sights and Activities in this Part of Long Island

Year-round indoor comfort is a part of living here in Great Neck, but the climate doesn’t always cooperate. Winters are crisp and marked by events at the Andrew Stergiopoulos Ice Rink, while summers bring warmth, celebrated through community activities like summer camps at the Great Neck House on Arrandale Ave. Stepping Stone Marina is another popular place for boat owners and people who love the oceanside vibe. The weather plays a role in the attractions of the area, but home is where the comfort is.

We Know Long Island Because We’re Your Neighbors

At T.F. O’Brien, we specialize in providing tailored HVAC solutions that meet the high standards of Great Neck homeowners. Whether you need precision installation, energy-efficient upgrades, or expert maintenance, we bring professionalism and care to every project because we want you to feel like your home is a haven of comfort, health, and energy efficiency.

Your comfort is our priority—season after season. Trust us to deliver HVAC excellence to your Great Neck home.

Your Local HVAC Partner

Living in Great Neck means being part of a community that values tradition, connection, and quality of life. As your local HVAC experts, we’re committed to helping you enjoy your time at home in Great Neck—whether you’re hosting a kids birthday party, relaxing after a day at the park, or feeling cozy on one of our Long Island winter days. Trust us to keep your indoor environment as welcoming as the community you call home.

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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    T.F. O’Brien review scores as of 3/13/25

    When you’re looking for heating and cooling service in Great Neck, NY, T.F. O'Brien wants to help.

    Our team of expert technicians is specially trained to perform comprehensive HVAC services on virtually any heating and cooling systems on the market, including all major brands and models we sell. We work diligently to meet your needs both professionally and efficiently, ensuring your complete satisfaction with every service call.

    We stand behind our work with a 100% satisfaction guarantee – you won't pay until you're completely satisfied with the service we provide. Our technicians arrive promptly, diagnose issues accurately, and complete repairs or maintenance efficiently to minimize disruption to your home or business.

    Don't suffer through uncomfortable temperatures in any season – choose our professional HVAC team to help with all your heating and cooling needs. From routine maintenance to emergency repairs and new system installations, we have the expertise to keep your indoor environment comfortable year-round.

    T.F. O'Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. When you need an HVAC contractor for your Long Island, NY home, T.F. O'Brien is ready to assist you. Simply call us at 516.488.1800 and one of our friendly representatives will be more than happy to help you.

    T. F. O’Brien proudly offers Great Neck, NY, customers local HVAC service

    Find out more about our HVAC services by clicking one your particular home comfort service need. We can help you now!



    Click For Areas We Provide Air Conditioning Services:

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