Ductless Heating & Air Conditioning Repair and Maintenance on Long Island, NY

ductless carrierWhen you need repair or maintenance for your ductless heating and cooling system, turn to the experts at T.F. O’Brien. For close to 80 years, T.F. O’Brien has been providing Long Islanders with expert repair, service and installation, and we want to help you with your ductless needs, too.

When you choose T.F. O’Brien to perform repair or maintenance on your ductless system, you’re choosing professionals the field of home comfort. We’re qualified to fully inspect, maintain and repair your ductless system, regardless of the make or model, and it is always our goal that you and your family are comfortable. That’s why it’s our guarantee that you’re 100 percent satisfied – and you won’t pay until you are.

When you need ductless maintenance or repair in your Long Island home, you can count on T.F. O’Brien for courteous, professional service. T.F. O’Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. Simply call us at 516.488.1800 and we’ll be pleased to assist you.

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.

Please briefly describe your HVAC needs:

We won't share your contact info or spam your inbox.

"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

Google Star Rating 4.8
72 reviews
Google Star Rating 4.6
270 reviews


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 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.

T.F. O’Brien is a full-service ductless contractor. In addition to ductless heating & AC repair and maintenance on Long Island, NY we also provide:

tfo areas servedT.F. O’Brien is a full-service heating and cooling contractor. In addition to ductless maintenance and repair, we also provide:

Click For Areas We Provide Ductless Services: