HVAC Services in Long Island

If you’re a Long Island resident in need of HVAC services, count on T.F. O’Brien Cooling & Heating. With nearly eight decades of providing comprehensive home comfort services, we are uniquely qualified to meet the needs of customers in the Long Island area – and we want to meet all your home comfort needs, too.

Our highly trained technicians are experts in the field of home comfort, and they work hard to provide each and every customer with quality HVAC services. Because we’re confident that our technicians offer the best available in Long Island that we offer a 100 percent satisfaction guarantee – we want you to be happy with the HVAC services we provide, and you won’t pay until you are.

Get Started with an Estimate

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.

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"Exceeded Expectations Throughout"


"The installation of a new central a/c unit exceeded expectations throughout the entire process...a true professional team throughout.

Thorough explanation of available options, responsive scheduling, seamless installation in one day by a diligent crew that took great care to be neat and clean, including the complete removal of the old system.

Would highly recommend the T. F. O’Brien team for installation of a new A/C system."

Jim Graf - Satisfied T.F. O'Brien Customer

72 reviews
72 reviews
229 reviews
229 reviews

T.F. O’Brien is pleased to offer a full range of HVAC services to Long Islanders.

tfo areas servedOur complete list of HVAC services in Long Island includes:

Count on T.F. O’Brien to be your Long Island HVAC contractor. To learn more about our comprehensive HVAC services, please contact us at 516.488.1800 and we will be pleased to assist you.