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Codes & permits · Nassau County

Plumbing permits & licensing in Nassau County

Nassau has no single countywide plumbing license: villages, towns and cities set their own rules. Here's how to find out which apply to your address.

  • One number for NYC, Long Island, Westchester & North Jersey
  • Houses, condos, co-ops and apartment buildings
  • Ask for the price before any work starts
Call for plumbing help1-888-503-1510

Takes about a minute. Tell us what's happening, what kind of building it is, and the town or neighborhood.

Jurisdiction & disclaimer

This page covers Nassau County, NY only. General information, not legal advice. Requirements change and individual projects differ. Confirm with the agency named on this page. Last reviewed .

01Who licenses plumbers

Plumbing licensing in Nassau is handled by incorporated villages, towns and cities, many through local examining boards or registration. Some recognize each other's licenses through reciprocity arrangements. State bills to create a countywide board have been proposed, but no countywide license is confirmed.

02Find your authority

  1. Check whether your address is inside an incorporated village (your tax bill shows village taxes)
  2. If yes, the village building department handles permits and licensing
  3. If not, the town building department does (Hempstead, North Hempstead or Oyster Bay), or the city (Glen Cove, Long Beach)
  4. Ask that office which plumbing licenses it accepts

03Permits

Most plumbing beyond simple repairs, such as water heaters, new fixtures and sewer connections, needs a permit from the local building department. The licensed plumber usually files it.

04Frequently asked questions

Is a NYC license valid in Nassau?

Not by itself. Ask the village or town which licenses it accepts.


Sources & review

Last reviewed . General information, not legal or engineering advice. Rules change and individual buildings differ.

  1. Village of Lynbrook, Plumbers Registration Application (village licensing & reciprocity)
  2. Village of Great Neck code (plumbing licensing)
  3. Town of North Hempstead, Plumbing Licenses Reciprocity

How it works

  1. CallOne number for the whole region.
  2. Describe itThe problem, the building and the town.
  3. Get connectedWith a local plumbing professional who can quote and schedule.