Pay Nothing Until You Are 100% Satisfied With Our Heating Services
See why we are the trusted HVAC experts on Long Island.
About T.F. O’Brien
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 in Long Island. Based in New Hyde Park, NY, we are conveniently located to serve Nassau, West Suffolk, and into Brooklyn and Queens.
- Pay nothing until you are 100% satisfied
- We design, install and engineer a comfort system that is perfect for your property
- We tell you what to expect up front, with no surprises
- We respect you and your property
Emergency HVAC Service
Don’t suffer with a broken HVAC system. When you need help, and you need it fast, you can rely on T. F. O’Brien to be there as soon as possible. Call us when you have an emergency, 24/7, even Holidays or weekends.
HVAC Maintenance & Tune-Ups
Annual maintenance and seasonal tune-ups for your heating or air conditioning system are easy ways to keep your system in great shape and help to maintain the warranty. Plus, with a maintenance agreement with us, you’ll receive top-notch service.
Air
Conditioning Systems
When the Long Island summers become too hot, make sure your AC system is working. Whether it’s AC repair or installation of a new system we can help keep your Nassau or Suffolk home cool.
Heating
Systems
When the cold strikes Long Island, you may find it to be time to upgrade your heating system or repair your existing system. Get long-lasting durability and high-efficiency while saving both energy and money on your utility bills.
We go above and beyond on every project. It’s our promise to you.
Financing Available
If you’re looking to upgrade your system, but you have to work within a budget, then let T. F. O’Brien help make things a little easier with our financing options.
12-Year Warranty
When you choose T.F. O’Brien as your heating and air conditioning contractor, you’re also choosing innovative Daikin products that come with an incredible warranty.
Professionalism, Quality, Responsiveness
I'm very happy with the installation of our oil to gas conversion. Matt was extremely diligent in making sure everything was working properly, stayed late, and returned the next day promptly after the installation to resolve a minor issue he identified. Took pride and ownership of his work. I was impressed and would recommend these guys to anyone. The sales experience with Brendan was a good one too. He explained everything thoroughly and made a number of sensible recommendations. No high pressure sales tactics. Accessible and responsive.
Mike C.
We were pleasantly surprised
Last year our central air system went down and were having horrible summer, we ended up calling lots of vendors to come give us quotes. We were pleasantly surprised when one of the owners Chris came himself to evaluate our issues and guiding us on what system we should replace it with. Hence we decided to go with them and we were glad we did. The installer and customer service were beyond friendly and Uber professional. Highly recommended.
Amita D.
I would definitely recommend this company!
My brother was impressed by their local advertisement. So I called. From the first person to the last person I communicated with, in the company, were kind & warm. Let’s not forget about their expertise & responsiveness. They explained my choices, the cost & the process in a manner I understood without dimming down the info. We ultimately chose to install two new heating units. I would definitely recommend this company!
Susan B.
The crew was extremely professional, and courteous
I am never at a loss for words, but its hard to describe the work that T.F. O'Brien did at our home. within one day we went from having a boiler from the nineteen sixties to having state of the art equipment, hot water heater and boiler installed.
The crew was extremely professional, and courteous.
Having Tom one of the owners stopping by our home to make sure everything went smooth was a pleasure. And let me not forget Pat truly professionals the way they take care of your every question and needs.
YOU GUYS ARE AWESOME!!
Luis V.
Best decision I made
After interviewing 4 HVAC contractors I picked TF O'Brien. Best decision I made. Project was a complete replacement of heating and cooling system for a two family house.
Dean S.
