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Plumber Licensing by State

Plumbing licensing is not uniform across the US. Some states run a statewide roster you can check a company against; others leave licensing entirely to cities and counties. Here's where we stand on each.

Live now

1 of 51 states

A state goes live only after its official roster has been downloaded, parsed and validated. Company counts come from that roster - never from paid or self-submitted listings.

All states

State Licensing Status on this site
Alabama Not yet verified Not yet researched
Alaska Not yet verified Not yet researched
Arizona Not yet verified Not yet researched
Arkansas Not yet verified Not yet researched
California Not yet verified Not yet researched
Colorado Not yet verified Not yet researched
Connecticut Not yet verified Not yet researched
Delaware Not yet verified Not yet researched
District of Columbia Not yet verified Not yet researched
Florida Not yet verified Not yet researched
Georgia Not yet verified Not yet researched
Hawaii Not yet verified Not yet researched
Idaho Not yet verified Not yet researched
Illinois Not yet verified Not yet researched
Indiana Not yet verified Not yet researched
Iowa Not yet verified Not yet researched
Kansas No statewide plumbing license. Cities and counties license instead. Not yet researched
Kentucky Not yet verified Not yet researched
Louisiana Not yet verified Not yet researched
Maine Not yet verified Not yet researched
Maryland Not yet verified Not yet researched
Massachusetts Not yet verified Not yet researched
Michigan Not yet verified Not yet researched
Minnesota Not yet verified Not yet researched
Mississippi Not yet verified Not yet researched
Missouri No statewide plumbing license. Cities and counties license instead. Not yet researched
Montana Not yet verified Not yet researched
Nebraska Not yet verified Not yet researched
Nevada Not yet verified Not yet researched
New Hampshire Not yet verified Not yet researched
New Jersey Not yet verified Not yet researched
New Mexico Not yet verified Not yet researched
New York No statewide plumbing license. Cities and counties license instead. Not yet researched
North Carolina Not yet verified Not yet researched
North Dakota Not yet verified Not yet researched
Ohio Not yet verified Not yet researched
Oklahoma Not yet verified Not yet researched
Oregon Not yet verified Not yet researched
Pennsylvania No statewide plumbing license. Cities and counties license instead. Not yet researched
Rhode Island Not yet verified Not yet researched
South Carolina Not yet verified Not yet researched
South Dakota Not yet verified Not yet researched
Tennessee Not yet verified Not yet researched
Texas Licensed at state level - a state roster exists to check against. Live - roster loaded
Utah Not yet verified Not yet researched
Vermont Not yet verified Not yet researched
Virginia Not yet verified Not yet researched
Washington Not yet verified Not yet researched
West Virginia Not yet verified Not yet researched
Wisconsin Not yet verified Not yet researched
Wyoming Not yet verified Not yet researched

Common questions

Why are most states not live yet?

Because a state hub with no roster behind it is an empty page. We add a state once we have fetched its licensing roster, parsed it, and validated it against the same checks every other state passes. Listing 50 states we cannot back up would make the directory look bigger and be worth less.

What does "licensed locally" mean?

Some states do not issue a statewide plumbing license at all - cities and counties license instead. In those states there is no single roster to check against, so verification means contacting the local authority that issued the license.

What does "not yet verified" mean in the table?

That we have not yet confirmed how that state licenses plumbers. It does not mean the state has no licensing requirement. Assume a license is required and check with the state until we have confirmed otherwise.