How to Become a Plumber in Illinois
In Illinois, a Plumber license typically requires a state exam.
Installs and repairs water, gas and drainage systems. Journeyman plumber licenses vary by state and locality; many require apprenticeship hours plus an exam. Requirements change — always confirm with City of Chicago Department of Buildings (no state-level plumber license in Illinois) before paying.
Licensing steps in Illinois
- 1Meet the basic requirements
Age and background check rules vary — confirm with the state board.
- 2Complete pre-license education
Required training hours are not published here — check with the state board for the current figure.
- 3Register and pass the exam
The exam vendor varies — check the official board site.
- 4Pay fees and get licensed
Fee schedule not published here — verify with the board.
- 5Stay current
Renewal cycle and CE requirements vary — check the board.
Plumber requirements — Illinois at a glance
| Education hours | — |
| Exam vendor | — |
| Questions (national/state) | — |
| Passing score | — |
| Exam fee | — |
| Application fee | — |
| License fee | — |
| First-attempt pass rate | not published |
| Retake rule | — |
| Renewal | — |
| Reciprocity | No state license — plumber licensing is municipal in Illinois (Chicago and other local jurisdictions); there is no statewide plumbing license |
Official source: City of Chicago Department of Buildings (no state-level plumber license in Illinois) ↗
Frequently asked questions
How long does it take to get a Plumber license in Illinois?
After completing the required education, most candidates need 4-12 weeks of study before the exam. Total timeline depends on scheduling.
How hard is the Plumber exam in Illinois?
Official first-attempt pass rates are not published by Illinois; check the state board.
What does the Plumber license cost in Illinois?
Fees are not published here — check the official board site.
Can I transfer my Plumber license to Illinois?
Reciprocity: No state license — plumber licensing is municipal in Illinois (Chicago and other local jurisdictions); there is no statewide plumbing license.
Plan your Plumber licensing in Illinois
This guide is informational and not legal advice. Requirements change frequently — verify all figures with City of Chicago Department of Buildings (no state-level plumber license in Illinois) (retrieved 2026-08-20).