Specializing in heating and air conditioning installation, as well as heating repair & ac repair services for over 85 years, it’s easy to see why we are the trusted HVAC experts on Long Island. Based in the village of New Hyde Park, NY, we are conveniently located to serve our residential and commercial customers in Nassau, West Suffolk, Brooklyn, and Queens. We also provide plumbing services.
Location
Certified by T.F. O'Brien Cooling & Heating • May 17, 2026
Certified by T.F. O'Brien Cooling & Heating • May 17, 2026
Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM
SaturdayClosed
SundayClosed
Reviews
4.9
2,178 reviews
5 stars
2,039
4 stars
72
3 stars13
2 stars11
1 star
43
DT
Debi Taylor
1 day ago
5.0
This is one of the best companies I've ever had the pleasure of doing business with. They are as professional as there is. They care about their customers. You can look, but you won't find a better or more reliable company to do business with.
TP
Tom Pennacchio
3 days ago
5.0
Chris came for our scheduled A.C. inspection. He checked all necessary Industrial requirements. He reviewed all findings with me in a professional, competent way - this included a "borderline part" reading that might be needing attention in the future. All in all, a very successful visit by a fine young man who is a credit to his company.
EM
Eric Monas
May 13, 2026
5.0
Had an issue with generator that was installed by TF O’Brien, battery was faulty, TF O’Brien was responsive and took care of the issue promptly under warantee and system was back up and running without issue. Rich turned what could have been a bad experience with the company into a pleasure to work with. Will definetly continue to use TF O’Brien in the future.
TC
Tom Cunningham
Apr 30, 2026
5.0
We had an excellent experience with Vuk from TF O'Brien. My central air conditioner was not working properly and I called TF O'Brien. They were able to give me an appointment the next day. The AC technician (Vuk) showed up early and spent a few hours checking out the entire system, finding the problem, fixing it, and then monitoring it to make sure it was working properlyy. The system is running like it's new.
DW
Donovan W
Apr 29, 2026
5.0
Today, I had a great experience with Justin from TF O’Brien Cooling & Heating during my recent in home estimate. He was punctual, professional, and took the time to thoroughly assess my system needs before providing a quote. What stood out most was how clearly he explained my options with no pressure, just honest recommendations and straightforward pricing.
Justin was knowledgeable and patient, answering all my questions in a way that made everything easy to understand. It’s clear he takes pride in his work and genuinely wants customers to feel confident in their decisions. If you’re looking for someone reliable and transparent for your heating and cooling needs, I’d highly recommend working with Justin.
Brand Certified Facts from T.F. O'Brien Cooling & Heating
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Certified May 17, 2026Yext Knowledge Graph
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