4 J's Plumbing, L.P. is a well known company in the five boroughs of New York. Our corporate office is located in Jamaica and a field office in Farmingdale, New York. Founded in 1982, 4 J's Plumbing performed work on numerous projects for City, State and Government Agencies. We specialize in piping, waste systems, backflow prevention devices, track lubricating systems, hot water heaters, fire supression, heating, hyperbaric chambers, pools, fountains, renovations and alterations. Some of our recents projects, include the World Trade Center, South Ferry Terminal and the Verrazano Narrows Bridge.