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 recognize Juneteenth, a day that marks the end of slavery in the United States and honors freedom, resilience,...
06/19/2026

Today, we recognize Juneteenth, a day that marks the end of slavery in the United States and honors freedom, resilience, and progress.
It’s a time to reflect, listen, and continue learning.
At T.F. O’Brien, we remain committed to showing up with respect, care, and accountability every day.

06/16/2026

Who's most likely to bring the snacks on our T.F. O'Brien team??

We're wishing a Happy Birthday month to two very special guys on our team: Robert B. and Nick B.! We hope you have an aw...
06/13/2026

We're wishing a Happy Birthday month to two very special guys on our team: Robert B. and Nick B.! We hope you have an awesome month full of celebrating🎂.

From dripping faucets and clogged drains to full kitchen upgrades, T.F. O’Brien delivers reliable, professional plumbing...
06/13/2026

From dripping faucets and clogged drains to full kitchen upgrades, T.F. O’Brien delivers reliable, professional plumbing services across Long Island.
✔ Toilet, sink & shower repairs
✔ Drain cleaning & leak detection
✔ Sump pumps & garbage disposals
✔ Whole-home water filtration & plumbing inspections
No upsells or surprises, just honest work from the team Long Island has trusted for generations. Call today: (516) 488-1800

Your AC hasn’t worked this hard since last summer. Think it’s ready?Before the heat hits harder, check:✔️ Air filter✔️ T...
06/10/2026

Your AC hasn’t worked this hard since last summer. Think it’s ready?
Before the heat hits harder, check:
✔️ Air filter
✔️ Thermostat settings
✔️ Airflow from vents
If something feels off, it probably is. Call T.F. O’Brien for trusted AC service on Long Island: 404-294-0900

06/08/2026

Who's most likely to brighten your day on the T.F. O'Brien team??

06/06/2026

T.F. O'Brien Cooling and Heating is proud to be a multi-generation family-owned Long Island business since 1934.

06/04/2026

See why Long Island homeowners like Gail trust T.F. O'Brien for quality plumbing services.
“William came quickly and repaired the problem with my toilet. He was knowledgeable and polite and I highly recommend him and TF O'Brien.” -Gail G., T.F. O’Brien customer

06/01/2026

Need air conditioning for your Long Island home? Let T.F. O'Brien put you at peace.

05/30/2026

“As usual the service from TF O’Brien was outstanding. Anthony L. was courteous, on-time, professional and he explained everything to me upon completion of the service and installation of the new part.” -Matthew C., 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

Alerts

Be the first to know and let us send you an email when T.F.O'Brien & Co., Inc. posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category