T.F.O'Brien & Co., Inc.

T.F.O'Brien & Co., Inc. Family-owned & providing quality heating, air conditioning, & plumbing on Long Island since 1934 We also provide plumbing services.

Specializing in heating and air conditioning installation, as well as heating repair & ac repair services for over 85 years, it’s easy to see why we are the trusted HVAC experts on Long Island. Based in the village of New Hyde Park, NY, we are conveniently located to serve our residential and commercial customers in Nassau, West Suffolk, Brooklyn, and Queens.

Today, we pause to remember the lives lost and the strength our communities showed on September 11.We honor the first re...
09/11/2026

Today, we pause to remember the lives lost and the strength our communities showed on September 11.

We honor the first responders, service members, and all those whose courage and compassion continue to inspire us.

May we never forget.

09/10/2026

We love being able to make our customers feel like they're in good hands. We've been family-owned since 1934, and we take pride in being your go-to experts for heating, cooling, and plumbing on Long Island.

Happy Labor Day from all of us at T.F. O'Brien!Today we're celebrating the hardworking people who keep our communities r...
09/07/2026

Happy Labor Day from all of us at T.F. O'Brien!

Today we're celebrating the hardworking people who keep our communities running, especially our incredible team members who show up every day to serve our customers.

We hope you enjoy a safe, relaxing holiday with loved ones.

September is National Preparedness Month, and it's the perfect time for us to remind you that preparing your home goes b...
09/02/2026

September is National Preparedness Month, and it's the perfect time for us to remind you that preparing your home goes beyond stocking emergency supplies.

Take a few minutes to:
✔️ Test your smoke and carbon monoxide detectors
✔️ Replace HVAC filters
✔️ Schedule your furnace maintenance
✔️ Know where your main water shutoff valve is located

A little preparation today can help prevent bigger headaches tomorrow.

09/01/2026

"5 stars? I would give T.F. O'Brien 15 stars."
Let us earn your trust too. Choose T.F. O'Brien for cooling, heating, and plumbing on Long Island.

Just in time for football season, we're giving away a $100 Dominick's Italian American Deli gift card to 1 lucky Long Is...
09/01/2026

Just in time for football season, we're giving away a $100 Dominick's Italian American Deli gift card to 1 lucky Long Island resident!

HOW TO ENTER:
*Each item = 1 entry. Do all 4 for 4+ entries!*
✅ Follow our page (1 entry)
✅ Like this post (1 entry)
✅ Tag a friend in the comments (each tag = an entry!)
✅ Share this post (1 entry)
The winner will be chosen at random, so good luck!
*You must be a Long Island resident & 18 years or older to win. Entry will be open until 12AM Sept. 11. The winner will be announced on our page on Sept. 14.

This August, we're celebrating two important T.F. O'Brien anniversaries:Matthew K., who's celebrating 1 year, & Don F., ...
08/25/2026

This August, we're celebrating two important T.F. O'Brien anniversaries:
Matthew K., who's celebrating 1 year, & Don F., who's celebrating 10 years.
Congratulations to you both, and thank you for everything you bring to the team.

08/24/2026

“Working with TF O’Brien has been a pleasure for the past two years.

Last week we replaced the water heater in the house and William was thorough, meticulous and left the work site clean. This was the second repair he had done at our house. I would not hesitate to recommend him for any plumbing related work.” -Dimitri N., T.F. O’Brien customer

Whether it's the hottest day of August or the first cool evening of fall, our team at T.F. O’Brien is here to help keep ...
08/20/2026

Whether it's the hottest day of August or the first cool evening of fall, our team at T.F. O’Brien is here to help keep your home comfortable. Thank you for trusting us with your heating, cooling, and plumbing needs on Long Island all year long.

“Chris was extremely thorough and professional. He answered all our questions very clearly and explained everything. I h...
08/18/2026

“Chris was extremely thorough and professional. He answered all our questions very clearly and explained everything. I have used other cooling and heating companies in the past and none have come close to Chris’ professionalism, thoroughness and ability and patience in explaining everything. If I could give more than five stars I would.” -Robert M., T.F. O’Brien customer

Address

100 Denton Avenue
New Hyde Park, NY
11040

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+15164881800

Website

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