New York licenses plumbers locally.

No. New York City licenses master plumbers through its Department of Buildings, and plumbing work in the five boroughs runs under a licensed master plumber’s license and business. A county license from Nassau, Suffolk, or Westchester does not carry into the city, and the city license does not automatically carry out to them. Each board has its own exam, experience rule, and paperwork. For the coverage review that means the first question on a New York quote is which board licenses the work and what it wants to see before it will issue or renew.

The Department says every master plumber business must have general liability, workers’ compensation, and disability insurance. Its licensing insurance guidelines set the general liability minimum per occurrence, name the Department as certificate holder on the liability certificate, and require the workers’ comp and disability certificates on the state’s own forms rather than on the liability certificate. Updates are submitted through the Department’s online system with each certificate as its own document. We write the policies so those certificates can be issued as written and we file them before they lapse.

No. The state’s three coverages, workers’ comp, disability benefits, and Paid Family Leave, are required of virtually every New York employer whatever the local license says, and a city that asks for the certificates is checking the same coverages the state already requires. What the local license adds is a general liability minimum and a certificate holder, and sometimes a bond or a registration for particular kinds of work. The guide beside this one covers the three state coverages in detail.

In New York City the master plumber license is issued to a person, and the business that operates under it has to be one the licensee controls. The Department’s business documentation asks for a corporation’s or LLC’s formation papers and a controlling interest held by the licensee, or by licensees together, plus an approved business location and a telephone bill in the business’s name. For the policy that means the named insured is the business the license is tied to, and the licensee’s name should appear where the Department expects it.

The Department keeps the certificates on file against the license, and a lapsed certificate puts the license and the permits that run under it at risk until a current one is filed. Because the three certificates are on three forms from three policies, one can lapse while the others are fine, and the disability certificate is the one that goes quietly. We calendar all three policy periods and file the updates through the Department’s system before the old certificates expire.

For New York City, the Department of Buildings publishes licensee search tools, and its plumbing project pages list what a licensed master plumber must show on permits. For the rest of the state, the county or city board that issues the license keeps its own list, and the local building department can tell you which board that is. The sources on this page link to the Department’s master plumber page and its insurance guidelines, which is where the city’s rules live.