If there’s a space in your home that needs air conditioning or heating, but the installation of ductwork is either impossible or impractical, then it may be time to consider mini-split air conditioning and heating from T.F. O’Brien. With nearly 80 years of experience keeping Long Islanders comfortable, T.F. O’Brien has the expertise to provide mini-split air conditioning and heating to help you and your family stay more comfortable.
Mini-split air conditioning and heating systems provide comfort to specific spaces in your home – without the need for installation of additional ductwork. No matter what your mini-split air conditioning and heating needs, there are a number of mini-split systems available that will provide you with the efficiency, aesthetics and comfort of a traditional system, with higher efficiency than a window air conditioning system or a space heater.
When you’re ready to install a mini-split air conditioning and heating system in your Long Island home, turn to the experts at T.F. O’Brien for courteous and professional service. T.F. O’Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. Just call us at 516.488.1800 and we’ll be more than 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.
"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


T.F. O’Brien review scores as of 7/15/21
T.F. O’Brien is a full-service ductless contractor. In addition to mini-split air conditioning and heating on Long Island, NY we also provide:
Click For Areas We Provide Ductless Services:
We provide mini-split AC & heating on Long Island, including Nassau County, Suffolk County and the following areas:
- Bay Ridge, NY
- Bayside, NY
- Bellerose, NY
- Bensonhurst, NY
- Breezy Point, NY
- Brooklyn, NY
- Brooklyn Heights, NY
- Brookville, NY
- Carroll Gardens, NY
- Commack, NY
- Cold Spring Harbor, NY
- Douglaston, NY
- Dix Hills, NY
- East Meadow, NY
- East Williston, NY
- Elmont, NY
- Floral Park, NY
- Flushing, NY
- Fort Salonga, NY
- Franklin Square, NY
- Freeport, NY
- Fresh Meadows, NY
- Garden City, NY
- Glen Cove, NY
- Glen Head, NY
- Great Neck, NY
- Greenlawn, NY
- Hauppauge, NY
- Huntington, NY
- Jericho, NY
- Kings Park, NY
- Long Island, NY
- Lloyd Harbor, NY
- Manhasset, NY
- Melville, NY
- Merrick, NY
- Mineola, NY
- New Hyde Park, NY
- Northport, NY
- Oceanside, NY
- Oyster Bay, NY
- Park Slope, NY
- Plainview, NY
- Port Washington, NY
- Queens, NY
- Queens Village, NY
- Rockaway Point, NY
- Rockville Centre, NY
- Roslyn, NY
- Smithtown, NY
- South Hempstead, NY
- Syosset, NY
- Valley Stream, NY
- West Hempstead, NY
- Westbury, NY
- Whitestone, NY
- Williston Park, NY
- Williamsburg, NY