Ductless Heating & Air Conditioning Systems in Long Island NY

T.F. O’Brien installs hundreds of Ductless systems every year.

Ductless Heating & Cooling Systems are perfect for room additions and other areas where duct work is impractical.

Ductless Heating & Air Conditioning Systems in Long Island NYDuctless systems deliver the heating and cooling comfort of a traditional systems to specific individual spaces in your home.

Whether you’re creating a quiet, comfort-controlled home theater room, or simply want to heat or cool an area in your home without ducts, the wide variety of ductless systems give you the efficiency, aesthetics, and comfort of a traditional central heating and cooling system.

They are also an efficient and quiet alternative to a window air conditioner unit.

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.


Contact us to find out if a ductless system is right for you or see some testimonials of happy ductless customers below:


“I chose to install a duct-free system because I trust the Carrier® name, and also because of the rebate available. I did not have a previous system, so I was new to ductless air conditioning. The installer was very helpful. He walked me through the mechanics of the system and provided me with educational brochures. I would definitely recommend this system to other people, as it’s energy efficient. It’s also very quiet – sometimes we wouldn’t even realize it’s running if not for the cold air coming out!”
~ Joanne R., New York

“Initially, I chose to install my duct-free split system because of the price. I had researched the product beforehand, but my installer helped me better understand how the system would work. It was less invasive to install than other systems, and I appreciate the quietness. I’d recommend it to others because of the quiet operation and advanced functions.”
~ Kevin M., New York