Directory of Plumbers

Licensing · Illinois

Plumber licensing in Illinois

74 plumbing businesses from Illinois are listed on this directory, all labelled Unclaimed unless a business has joined and passed checks. This page states who licenses plumbers in Illinois and where that license is verified.

Who licenses plumbers in Illinois

Illinois licenses plumbers at the state level under the Plumbing License Law, administered by IDPH. The City of Chicago runs its own licensing for work in the city.

How to verify a license

  1. Ask the business for its license number and the exact name the license is issued to.
  2. Search the IDPH plumbing program and match the name to the business you are hiring.
  3. Confirm the classification covers your type of work, the status is active, and the expiration date is in the future.
  4. Check insurance separately: ask for a certificate of insurance. A license and insurance are different checks.

Illinois metros on this directory

Questions about plumber licensing in Illinois

Who licenses plumbers in Illinois?

Illinois Department of Public Health (IDPH). The model in Illinois is: state licensing.

How do I verify a plumber's license in Illinois?

Ask the business for its license number and the exact name on the license, then confirm in the official register that the name matches, the classification covers your work, the status is active, and the expiration date is in the future.

Does a license in another state count here?

No. A plumbing license authorizes work only in the jurisdiction that issued it. In local-licensing states, it may not cover the next city.

Method and cautions: plumber licensing by state (guide) · how we verify · Get matched free