Shamrock Sale - It's Our Best Offer This Year!


Save $2,500 on a new high-efficiency HVAC system

When you purchase a new, high-efficiency system, you’ll be eligible for an amazing $2,500 savings. We’re bundling together an incredible offer that makes saving some green easy!

To take advantage of this special offer call T.F. O'Brien at
(516) 488-1800
or complete the short form below

Offer Details:

  • System Discount $1,500
  • Utility Company Rebates - $1,000 Value (on select systems)
  • 12-Year Warranty
  • INTEREST-FREE FINANCING with approved credit


Offer expires March 17th, 2022

This will be our best offer all year

But you have to act quickly. Once St. Patrick’s Day arrives, this pot of gold disappears.

If you’ve been thinking about replacing your old, energy guzzling home comfort system with a new, high-efficiency system, there is no better time than the present. We realize you may not need a new furnace or air conditioner, and if you don’t, no discount is going to make sense. But, if your system is more than 10 years old, this could be the opportunity of a lifetime.

Call us at (516) 488-1800 or email using the form below to find out how you can take advantage of this offer today!

* Ask us for details about the different financing options available with credit approval. Restrictions may apply. Total savings shown: $1,500 system discount, $1,000 utility rebate, 12-year warranty, available on select systems. Ask dealer for details. Offer Expires 3/17/22.

    Please complete the form below and a T.F. O'Brien representative will reach out to you.

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    Why Choose T.F. O'Brien for Your New HVAC System?

    facebook review
    71 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.

    Google Star Rating 4.6
    412 reviews