Commercial Maintenance on Long Island, NY

Commercial Maintenance Long Island NY TFOBrienWhen you need maintenance on your commercial HVAC system, you can count on the experts at T.F. O’Brien to help you with your maintenance needs. We’re pleased to offer heating and cooling tune-ups designed to keep your system running at maximum efficiency and working at top condition.

When you work with T.F. O’Brien to meet your commercial HVAC maintenance needs, you’ll be able to trust in an HVAC company that has been serving commercial clients for nearly eight decades. Our technicians are specially trained in commercial applications, and want to work with you to provide the best commercial maintenance available.

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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    What do our customers think of us?

    Google Star Rating 4.8
    40 reviews
    Google Star Rating 4.6
    352 reviews

    The New A/C is Wonderful

    Excellent service from beginning to end. The new A/C is wonderful.


    Installation was First Rate and Professional

    Tom did a great job. Got 5 other estimates: one did not respond, another sent a proposal via email which I could either accept or decline with no questions entertained. We had a special situation and only Tom was able to understand it and figure out a way to do the job. We're very happy with our new Daikin unit-operates exactly like Tom said it would. The installation was first rate and professional as well. Would certainly recommend.


    Very Happy with Your Work

    Very happy with your work, just very happy I haven't had to use it yet due to cool weather.


    Installed as Promised in a Very Timely Fashion

    The customer service has been excellent. It's been extremely easy to schedule the consultation, installation and follow-up service. Everything was delivered and installed as promised in a very timely fashion. I've been extremely happy with the level of communication from your company. When I'm ready to have the next phase of my HVAC system installed I'm definitely coming back!


    Very Pleased

    Very pleased to date!


    Always a Pleasure

    Always a pleasure.


    Excellent Job / Excellent Service

    Excellent job/excellent service as always. Thank you.


    Professional, Courteous, and Likeable

    Professional, courteous, and likeable.


    Outstanding Service

    Outstanding service.


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

    At T.F. O’Brien, we provide comprehensive commercial maintenance. For your convenience, choose from:

    tfo areas servedWe want to help you keep your equipment running for years to come, and to help you keep your employees and clients as comfortable as possible. Our technicians are trained to provide expert commercial heating or cooling system tune-ups, and always work toward your complete satisfaction.

    When you need commercial maintenance, you can trust T.F. O’Brien to provide you with the best services available. T.F. O’Brien proudly serves all of Long Island, including Nassau County, Suffolk County, and Brooklyn. Simply call us at 516.488.1800, or fill out the convenient contact form below, and we’ll be pleased to assist you.