Ductless Mini-Split Repair & Maintenance in Nassau County

Ductless Mini Split Repair Maintenance Nassau CountyDo you need repair or maintenance for your ductless mini-split? Then count on the experts at T.F. O’Brien to help. For nearly 80 years, T.F. O’Brien has been providing expert repair and maintenance in Nassau County, and we want to help you with your ductless mini-split.

By choosing T.F. O’Brien to perform repair or maintenance on your ductless mini-split, you’ve selected a company staffed by professionals dedicated to home comfort.

We’re qualified to inspect, maintain and repair your ductless mini-split, regardless of the make or model. And, we want you and your family to be comfortable above all else – we guarantee that you’ll be 100 percent satisfied with the work we perform for you, and you won’t pay until you are.

If you need ductless mini-split repair and maintenance in your Nassau County home, trust T.F. O’Brien for courteous, professional service. Just call 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



    Five Stars


    Five Stars

    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 provides ductless mini-split repair and maintenance in Nassau County. We also provide: