Ductless Heating & Air Conditioning Repair and Maintenance in Nassau County

Ductless Heating Air Conditioning Repair Maintenance Nassau County

When you need ductless heating and cooling repair or maintenance, turn to the experts at T.F. O’Brien. For close to 80 years, T.F. O’Brien has been providing Nassau County residents with expert repair, service and installation. And we want to help you with your ductless needs.

By choosing T.F. O’Brien to perform repair or maintenance on your ductless system, you’re choosing professionals in the field of home comfort. We are qualified to fully inspect, maintain and repair your ductless system, regardless of the manufacturer or model, and it is always our goal that you and your family feel comfortable. You won’t pay until you’re 100% satisfied.

When you need ductless maintenance or repair in your Nassau County home, you can count on T.F. O’Brien for courteous, professional service. Simply call us at 516.488.1800 and we’ll be happy to assist you.

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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


    See how Daikin ductless systems can improve your comfort and save you money

    Unlike single speed systems, Daikin ductless inverters offer variable speeds for more efficient home comfort.

    Hear the difference in a Daikin ductless system from T.F. O'Brien

    Our ductless solutions are engineered to operate under 50 decibels. Comfortably enjoy your home with a Daikin ductless system.


    We also offer emergency repair service, seven days a week, including holidays.

    T.F. O’Brien & Co is proud to provide exceptional maintenance and repair services, including emergency service, for residential and commercial customers in Nassau and Suffolk Counties. Get your system back up and running, promptly and professionally.

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    T.F. O’Brien is a full-service ductless contractor. In addition to ductless heating & AC repair and maintenance in Nassau County, we also provide: