Heating and Cooling the entire North Fork and East End since 1917

For a century now, we have built Burt’s into one of Eastern Long Island’s leading fuel and service providers

We have developed an outstanding reputation as an affordable, expert resource for heating, air conditioning and plumbing equipment, installation and repair services.

Throughout the North Fork—including Riverhead, Greenport, Cutchogue, Southold, Hampton Bays and more—we are proud to hear that when residents are asked, “What company do you depend on for all your home comfort needs?” They answer, “Burt’s Reliable.”

Learn more about our services, then contact us with any questions you have, or schedule service for your home or business today!

Note: All services you see on this website are offered for vacation homes. If you have a second home, we’ll take care of it.


Burt’s Reliable remains the only heating oil company on the North Fork that delivers low-sulfur natural heating oil with a B20 biofuel blend.
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Our experienced, well-trained technicians are experts at installing and servicing a long line of heating equipment products.
We’ll Take Care of It


When was your last tune-up? Need to pay your bill or view past statements? No need to call or email just log into your account. We make it easy.
Find Out More


Our master plumbers can diagnose, repair and install any plumbing system for your home or business.
Let Us Take Care of It.


Benefit from the latest technology

We offer Gremlin cellular tank monitors and Ecobee smart thermostats.


What customers say

“Your technician made a difficult emergency repair on my boiler and did it very well without complaints. I really appreciated your fair guaranteed repair billing as well.”
-Christine from Hampton Bays

“I had a problem at my vacation home last winter. You took care of it immediately and called me to let me know all was well. You saved me from driving for two hours in bad weather!”
-Anne from Greenport

“Great job installing my new air conditioning system. Your technicians were great. I get plenty of cool air now and pay less than I did before. Thank you!
—Richard from Riverhead
*All Master Electrical and Master Plumbing services are performed by licensed and insured subcontractors.