Chicago licenses plumbing contractors through the city's Department of Buildings. A state card does not replace that city license. Evanston, Oak Park, and Cicero are separate municipalities. This page shows which Chicago, IL plumbers AI assistants named most often across answers RecommendRadar ran and stored, how often each appeared, and the sources those answers cited. Being named often isn't proof of the repair. Get the written quote before work starts.
3 snapshot runs from the last 45 days named a business. This page is indexed after 3 such runs. Names that differ by case, punctuation, a leading The, a practice suffix, or a shortened firm name are combined.
Before you contact anyone on this list
- Ask which license covers this job and match it to the price.
- Ask who will pull the permit.
- Get a written quote before work starts.
FAQ
Does Illinois license plumbers statewide?
Chicago requires its own plumbing contractor license from the Department of Buildings. That city license is what covers a Chicago address.
Who permits plumbing in Chicago?
The City of Chicago. Evanston, Oak Park, and Cicero are not Chicago permits.
Which Chicago, IL plumbers did AI name most?
Rescue Plumbing (3 of 3), Goode Plumbing (2 of 3), Apex Plumbing & Sewer (1 of 3), First Chicago Plumbing (1 of 3), John Yerkes & Sons Plumbing (1 of 3), King Heating Cooling & Plumbing (1 of 3), Rocket Plumbing (1 of 3), Roto-Rooter Plumbing & Water Cleanup (1 of 3), Walsh & Son Plumbing and Sewer (1 of 3)
How this page works
Every name, count, and source on this page comes from answers RecommendRadar ran and stored for the best plumber in Chicago, IL. Nothing is added or edited by hand. These stored answers came from Perplexity. Sample: 3 stored answers from the last 45 days, refreshed November 3, 2026. AI answers vary with wording, time, location, and engine, so this is a dated sample of what those engines said, not an endorsement or a ranking of quality.