About T.F. O’Brien
Specializing in heating and air conditioning installation, as well as heating repair & ac repair services for over 75 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.
Emergency 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.
Air
Conditioning
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
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.
We service all brands including:
Outstanding job on installation. Attention to detail and genuine care about the job!! 🙂 Thank you.
Proud to Provide Heating & Air
Conditioning for Long Island Since 1934
