Our Guarantee

We’re not comfortable until you are.

One of the most important reasons to choose T.F. O’Brien & Co. is our people. Our technicians are extremely skilled, knowledgeable and highly trained — but we get even more compliments on their attitudes, workmanship and respect for our customers.

You can expect the following from our techs when they do work for you:

  • They will care for your home and complete the job with speed and precision.
  • They will not wear shoes on your carpets.
  • They will clean up when they are finished and take personal responsibility for your satisfaction.
  • They will not swear in your home.
  • They will not smoke in your home.
  • They are drug-free.
Man sits on couch comfortably underneath his ductless cooling and heating unit

If you’re not completely happy when our technicians are done with the job, you won’t pay until you are totally satisfied with their work. The next time you need heating and cooling work done, call T.F. O’Brien and experience the difference.

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T.F. O’Brien is an Angi Super Service Provider!

At T. F. O’Brien we pride ourselves on our customer service and our attention to detail. We try to go above and beyond on every project, and we think our customers notice a difference. We’re proud to receive awards and accolades, but nothing makes us more proud than the nice things our customers say about us.

We guarantee excellent service, but you don’t have to take our word for it. Our customers were so satisfied, their ratings and references qualified us for an Angie’s List Super Service Award, an honor enjoyed by less than 5% of the service providers rated on the site!

Thank you for trusting us.

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T.F. O’Brien is a 3x Carrier® President’s Award winner.

This award is Carrier's® highest award for dealers and is presented based on expertise, high customer satisfaction, exceptional leadership and management, business growth, and operational excellence.

North American Technical Excellence Badge

T.F. O’Brien hires NATE Certified Technicians

Our technicians  have successfully completed a series of HVAC, electrical, airflow, installation and service exams, which ensures our customers have highly qualified technicians in their homes.

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T.F. O’Brien is Better Business Bureau Accredited

T.F. O’Brien has been accredited by The Better Business Bureau since 2014, and we are pleased to have an A+ rating with 4.9/5 review scores overall.

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Air Conditioning Contractors of America (ACCA)

As an ACCA, T.F. O'Brien is committed to creating safe, healthy, and energy-efficient indoor environments.

BPI - Building Performance Institute, Inc. Certified Logo

BPI Heating Certified

T.F. O'Brien's expertise, continuous improvement of home performance skills,  excellent customer service, and commitment to the energy efficiency and safety of all homes have earned this BPI heating certification.

  • Environmental Protection Agency (EPA) Certified
  • Professional Engineers (PE)
  • National Association of the Remodeling Industry (NARI) Member
  • Family Owned since 1934
  • A Huntington Township Chamber of Commerce Member
  • A New Hyde Park Chamber of Commerce Member

We help businesses control their heating and cooling cost through proper maintenance and operation.

To learn more or schedule service, give the professional and knowledgeable team at T. F. O'Brien & Co. a call at 516.488.1800 or fill out our convenient contact form.

We help businesses control their heating and cooling cost through proper maintenance and operation.

To learn more or schedule service, give the professional and knowledgeable team at T. F. O'Brien & Co. a call at 516.488.1800 or fill out our convenient contact form.