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How to get a plumber license in Illinois

The Illinois Department of Public Health, Plumbing Program sets the education you must complete before it will license you. Here is the exact requirement, by license class.

Illinois Department of Public Health, Plumbing Program

Required hours by license class

plumber · Pre licensure

5600 required hours

An exam is required for one or more of these license classes — confirm which with the board.

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Source: Illinois Department of Public Health, Plumbing Program · verified 2026-09-06

Common questions

How many hours of pre-license education does Illinois require for plumbers?
5600 hours for plumber, Pre licensure, as set by the Illinois Department of Public Health, Plumbing Program.
Is an exam required to get licensed in Illinois?
Yes. In addition to the required education hours, Illinois requires a licensing exam for one or more license classes.
Can I complete these hours online?
Yes. Our pre-license courses are delivered entirely online and self-paced, with a certificate of completion issued as soon as you finish.

Already licensed? This page covers getting your first license. If you already hold one, Illinois plumbers renewal requires 4 hours of continuing education — see Illinois plumbers continuing education.