Generator Maintenance & Repair on Long Island, NY

generatorTo make sure your generator is up and running when a storm hits, count on T.F. O’Brien for comprehensive generator maintenance and repair. Serving Long Island’s home comfort needs for more than 80 years, T.F. O’Brien is a qualified provider of generator services, and we want to help you with your generator maintenance and repair as well.

Although we install high-quality generator products, our skilled technicians have been specially trained to provide generator maintenance and repair services on a variety of makes and models of generators (20 kW or smaller) on the market. When you call us for your generator maintenance or repair, rest assured we will provide you with a comprehensive analysis of your current generator system, and make any maintenance or repair services professionally and with your comfort and safety in mind.

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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

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T.F. O’Brien is a full-service generator contractor. In addition to generator maintenance and repair on Long Island, NY we also provide:

tfo areas servedT.F. O’Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. At T.F. O’Brien, we want our customers to be as comfortable as possible. Aside from generator maintenance and repair, we offer additional services including:

Click For Areas We Provide Generator Services: