Serving the Historic Gold Coast and Vibrant Communities of Nassau County
Nassau County is more than just a suburb; it is a collection of distinct villages and towns that blend historic charm with modern coastal living. From the majestic Gold Coast estates in Old Westbury to the vibrant, walkable downtowns of Garden City and the iconic boardwalk in Long Beach, Nassau is a place where community ties run deep. It’s the safest large municipality in America, a premier destination for world-class shopping at Roosevelt Field, and home to legendary venues like the Nassau Coliseum and Jones Beach Theater.
At T.F. O’Brien Cooling & Heating, we have been a fixture of the Nassau County landscape since 1934. Founded by Thomas Francis O’Brien, our family-owned business began in a modest storefront and has grown through four generations of the O’Brien family. We don’t just work here—we are part of the history. Our New Hyde Park headquarters allows us to be at your doorstep quickly, whether you’re near the Cradle of Aviation Museum or living in a historic Tudor in Great Neck.
Specialized HVAC & Plumbing for Nassau Homes
Nassau’s housing stock is incredibly diverse, and we have spent 90 years mastering the nuances of every architectural style:
- Historic Home Comfort: Many Nassau homes, like those in the Munsey Park area, feature classic architecture that traditional HVAC systems can’t easily serve. We specialize in high-velocity heating and ductless mini-splits that provide modern climate control without disturbing your home’s historic plaster or molding.
- Coastal Climate Experts: Residents in Oyster Bay, Manhasset, and Bayville know that salt air can be brutal on exterior units. We install specialized, corrosion-resistant systems designed to handle the humidity and North Shore winds.
- Master Plumbing Services: From the older clay pipes in established villages to the modern plumbing needs of new luxury developments, our licensed master plumbers handle everything from emergency leak detection to full-scale bathroom and kitchen renovations.
We are proud members of the New Hyde Park Chamber of Commerce and regular supporters of local events like the Nassau Hub innovations and the Belmont Stakes. When you choose T.F. O’Brien, you are choosing a partner who knows Nassau County as well as you do.
Looking to enhance your home's comfort or need a trusted local plumber? Contact T.F. O’Brien today—we’re just around the corner.
Anyone who lives here in Nassau County knows that we get some extremes in temperatures and conditions on Long Island. The summers can get blazing hot and it's not unusual for us to get a couple of snow storms during our chilly winters. Our goal is to keep you comfortable all year long by providing heating and cooling services for you at your Nassau County home. We can help install a new furnace, repair a heat pump system, or come by for yearly tune ups and maintenance. We also have a full line of services that will improve your indoor air quality, including air scrubbers and purifiers.
Give us a call and we can come out and give you an estimate on any of these services that you'll need for your Long Island home before winter's chill and summer's heat.
Highly Trained HVAC Technicians are Here to Help You
At T.F. O'Brien Cooling & Heating, we take immense pride in our team of skilled craftsmen, and we're confident you'll notice the difference they make. Their positive attitudes and strong work ethic shine through on every job site, and our entire company is dedicated to ensuring your experience with us is hassle-free and enjoyable. From the professionalism of our engineers to the dedication of our trained technicians, we are committed to providing you with top-notch service. Our ultimate goal is to offer you the best HVAC service available for your Long Island, NY, home, and we won't rest until you're completely satisfied with the quality of our work.
Get Started with an Estimate
Join 25,000+ Happy Homeowners!
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
When you’re looking for heating and cooling service in Nassau County, NY, look no further than T.F. O'Brien.
Our team of expert technicians is specially trained to perform comprehensive HVAC services on virtually any heating and cooling systems on the market, including all major brands and models we sell. We work diligently to meet your needs both professionally and efficiently, ensuring your complete satisfaction with every service call.
We stand behind our work with a 100% satisfaction guarantee – you won't pay until you're completely satisfied with the service we provide. Our technicians arrive promptly, diagnose issues accurately, and complete repairs or maintenance efficiently to minimize disruption to your home or business.
Don't suffer through uncomfortable temperatures in any season – choose our professional HVAC team to help with all your heating and cooling needs. From routine maintenance to emergency repairs and new system installations, we have the expertise to keep your indoor environment comfortable year-round.
T.F. O'Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. When you need an HVAC contractor for your Long Island, NY home, T.F. O'Brien is ready to assist you.
Simply call us at 516.488.1800 and one of our friendly representatives will be more than happy to help you.
T. F. O’Brien proudly offers Nassau County, NY, customers local HVAC service
Find out more about our HVAC services by clicking one your particular home comfort service need. We can help you now!