Home / Plumbers / Indiana / License

How much experience do you need in Indiana?
4 years in a Commission-approved apprenticeship, or 4 years of plumbing trade experience shown by a notarized statement, or an out-of-state plumbing license2
- Journeyman license
- 4 yrs4 years in a Commission-approved apprenticeship, or 4 years of plumbing trade experience shown by a notarized statement, or an out-of-state plumbing license
- Contractor license
- 4 yrs4 years in an approved apprenticeship, 4 years of trade experience, or 4 years in a plumbing business under a licensed contractor
Keep your own record of hours, employers and pay stubs. PLA can ask for proof when you apply.
What is the Indiana plumber exam like?
You take the state exam once the board approves your hours. PROV (provexam.com), after the Plumbing Commission approves the application.12
How much does the plumber license cost?
Journeyman: $30 application, $30 renewal; contractor: $50 application, $100 renewal; apprentice: $10 application, $10 renewal2
How do you renew it?
Journeyman and contractor licenses expire December 31 of every odd-numbered year; apprentice registrations expire October 1 of every even-numbered year.2 Continuing education: none listed in the renewal instructions or the plumbing license law.2
Does a license from another state count in Indiana?
Licensed without exam if the other state's requirements are substantially equal and it gives Indiana licensees the same privilege.3
License levels in Indiana
Plumbing Apprentice (registration, age 17+); Journeyman Plumber (age 18+); Plumbing Contractor; Corporate Plumbing Business.
Applications, exam booking and hour forms are on PLA's site.
More for plumbers in Indiana
Sources
- Indiana Plumbing Commission, Indiana Professional Licensing Agency (PLA): exam (iga.in.gov, 2026-10-27)
- Indiana Plumbing Commission, Indiana Professional Licensing Agency (PLA): exam provider (in.gov, 2026-10-27)
- Indiana Plumbing Commission, Indiana Professional Licensing Agency (PLA): reciprocity (iga.in.gov, 2026-10-27)