We Moved!


Sunset Park will always be in our hearts, but it was time for a change. Don't worry, though. We haven't gone far. Our new Bayridge, Brooklyn office is just a few minutes away at:

6717 4th Avenue
Brooklyn, NY 11220


Please update your address books, forward all mail accordingly, and keep in mind that our move has absolutely no effect on our services or service area. Blue Diamond is proud to continue serving residential and commercial customers throughout all five boroughs of New York City.

Enter the Blue Diamond website
Blue Diamond
P: (718) 965-0900
6717 4th Avenue
Brooklyn, NY 11220
Exceptional Service


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Fuel Oil Commercial Natural Gas Electricity

Welcome to Blue Diamond!

From Brooklyn's brownstones to Manhattan's skyscrapers, Blue Diamond provides New York City's residents and businesses with intelligent energy solutions that drive down costs while promoting efficiency and enhancing comfort. We meet every heating need from fuel delivery to system upgrades, from residential to commercial services, and from oil heat to natural gas. We even provide electrical services and energy audits. In a way, Blue Diamond is like a utility company, but with more options, fewer hassles and lower costs. For service you trust, please call Blue Diamond today or contact us online.