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Illinois
Plumbers in Illinois
63 plumbing businesses in its metro areas within about 25 to 35 miles of Chicago and Peoria – plus how Illinois licenses plumbers.
Metro areas
Illinois cities we cover
Across the state line
Nearby metro areas with Illinois plumbers
These city pages include plumbers based in Illinois.
Illinois rules
Do plumbers need a license in Illinois?
How Illinois licenses plumbers
Licensing is split between the state and local governments.
Who licenses: Illinois Department of Public Health (Illinois Plumbing License Law, 225 ILCS 320)
License types: Licensed Plumber, Apprentice Plumber, Plumbing Contractor (registration).
Businesses: Any licensed plumber or apprentice who performs plumbing work for another person must register with IDPH as a Plumbing Contractor and renew annually, and plumbing advertisements must include the plumbing license number.
Local rules: The City of Chicago licenses plumbers itself through its Department of Buildings, and a City of Chicago plumbing contractor license is required for plumbing work inside the city even for holders of an Illinois state plumber license.
Check a license: ildohplmprod.glsuite.us
Check the plumber's license on IDPH's verification site and confirm the company is a registered Plumbing Contractor; inside Chicago, also confirm it holds a City of Chicago plumbing contractor license.
Sources: dph.illinois.gov, chicago.gov. Checked October 2026 from official sources. This is not legal advice.
Before you hire
Ask for the license number and check it on the official lookup where one exists. Ask for proof of insurance and a written, itemized estimate, and ask who pulls the permit if the job needs one – water heaters, repiping and sewer lines often do.
Questions
Illinois plumbing questions
Do plumbers need a license in Illinois?
In Illinois, licensing is split between the state and local governments through the Illinois Department of Public Health (Illinois Plumbing License Law, 225 ILCS 320). You can check a license at ildohplmprod.glsuite.us.
Where in Illinois do you list plumbers?
In Illinois: Chicago (35), Peoria (19). Each city page lists plumbers based within about 25 miles (35 in smaller metro areas) whose own website names that city or nearby towns.
How do I get a plumber listed in Illinois?
Plumbing businesses can add their business free. We check every listing against the business’s own website.
Neighboring states: Wisconsin · Iowa · Missouri · Kentucky · Indiana.
Free plumber request
Tell us the problem. We’ll connect you with a local plumber in Illinois.
- 1Tell us the job and your ZIP code
- 2We send it to listed plumbers who serve your area
- 3They contact you directly
Free, no obligation. If no listed plumber serves your area, we’ll tell you. Water pouring in? Shut off the main valve first, then call a plumber from the list.