TF O'Brien

Heating & Air Conditioning for Long Island
Call for Service: (516) 488-1800

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Service

We can service any brand of existing equipment.

Preventive Maintenance Long Island

T.F. O’Brien & Co provides only the best maintenance and repair service for residential and commercial customers in Nassau and Suffolk Counties. We guarantee you’ll be satisfied with our work as we take great pride in our qualifications.

Plus (although we love seeing you and all our customers) we can help you to avoid calling us with an emergency situation. Check out the many benefits of a T.F. O’Brien annual maintenance contract.

Call T.F. O’Brien at (516) 488-1800 to learn more about service and annual maintenance. Don’t feel like chatting? You can fill out the form below to get a quote. Or, if you have a specific question, you can ask a tech right now.

Special Offers

Now is the perfect time to upgrade your heating or air conditioning. You'll save up to $3,150 on a new system! This is a great opportunity if you're upgrading. Contact us and we'll show you how much you'll save. Find out more >

Financing Available

If you're looking to upgrade your system, but you have to work within a budget, then let T. F. O'Brien help make things a little easier with our financing options. Read More >

10-Year Warranty

When you choose T.F. O’Brien as your heating and air conditioning contractor, you’re also choosing innovative Carrier products that come with an incredible warranty. Read More >

Emergency Service

When you need help, and you need it fast, you can rely on T. F. O'Brien to be there as soon as possible. Call us when you have an emergency, 27/4 even Holidays or weekends. Read More >