Master Plumber License

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Buildings, Department of City
A master plumber can supervise or perform plumbing work in New York City. This license is issued by the Department of Buildings.

Other plumbers can work under the supervision of a master plumber.

In order to receive this license, you must have several years of experience, depending on your education. At least two years must have been completed as a Journeyman Plumber in New York City. Consult the link below on becoming a Journeyman Plumber.

Contact the Department of Buildings for more information.


NYC Department of Buildings (DOB)
Licensing Division
280 Broadway, 6th Floor
New York, NY 10007
Phone: (212) 393-2259
licensingdob@buildings.nyc.gov
For further assistance, please call 311 and ask for: Licensing Unit.
Website: http://www.nyc.gov/buildings

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