Commercial HVAC Services in Long Island, NY

Commercial HVAC Services Long Island NY TFOBrienIf your business or organization is in need of commercial HVAC services, then rely on T.F. O’Brien to assist you. For nearly 80 years, our family has been helping commercial customers stay comfortable, and we want to help your business or organization, too.

We’re pleased to provide you with expert installation, repair and maintenance services – all completed by our skilled commercial HVAC technicians. They’ll be able to quickly diagnose and troubleshoot any repairs your system might need, and they’ll be able to help you choose the best most efficient commercial HVAC products for your business or organization, as well as your bottom line.

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.

Please briefly describe your HVAC needs:

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What do our customers think of us?

Google Star Rating 4.8
71 reviews
Google Star Rating 4.6
329 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.


We know how important a properly running HVAC system is to you – that’s why our commercial HVAC technicians get the job done right!

We want to make sure you, your employees and your clients stay comfortable all year long. That’s why we’re pleased to offer our commercial clients the following services:

tfo areas served

T.F. O’Brien provides commercial HVAC services to a number of locations, including:

If you need commercial HVAC services for your business or organization, count on T.F. O’Brien for all your needs. Just give us a call at 516.488.1800 or fill out the convenient contact form below, and we’ll be happy to assist you.