We pride ourselves in providing high-quality air conditioning and heating services to all of Long Island, NY. For decades, we’ve been helping our neighbors in Nassau County, Suffolk County, Queens, and Brooklyn. As a full-service HVAC contractor, we provide a variety of services for air conditioning, heating, ductless, and commercial systems. The HVAC services we provide include installations, repairs, maintenance, and more.

Contact Us Today For All Your Air Conditioning and Heating Needs On Long Island, Nassau County, Suffolk County, Queens, and Brooklyn. 

At T.F. O’ Brien, we provide a comprehensive range of residential and commercial HVAC services to meet all your needs. Whether you need an air conditioning system to get you through a Long Island summer, or a furnace upgrade for the cold days of winter, our certified HVAC technicians have the experience and expertise to help. We want to provide you with a solution that fits your needs and your budget. We strive to offer the best value for your money by providing you with competitive prices and quality products.

We’ve been helping our neighbors on Long Island since 1934. You can rely on us to keep your home heating and cooling needs running smoothly with our top-quality HVAC services.

Contact us today to schedule an appointment and experience our exceptional service for yourself: 516.488.1800. Or fill out our convenient contact form, and we’ll be more than happy to get in touch with you.

Call T.F. O’Brien today for more information about our financing options.

When you need new HVAC equipment and want to discuss low monthly cost options with us, simply give us a call at 516.488.1800. We’ll be glad to answer any questions you may have.