How to Find a Licensed Plumber in Chicago: What to Check Before You Hire

Not every contractor calling themselves a plumber in Chicago is actually licensed. Here is how to verify credentials before you hire.

Verifying a Plumber's License in Illinois

In Illinois, plumbers must be licensed through the Illinois Department of Public Health. For most residential and commercial work, you want a Licensed Plumber — not an apprentice working independently.

How to Check a License

You can verify any Illinois plumbing license through the Illinois Department of Public Health online license lookup. Ask for the plumber's license number and verify it yourself before any work begins.

Questions to Ask Before Hiring

Are you licensed in Illinois? Can I have your license number?
Are you insured? Can you provide a certificate of insurance?
Do you pull permits for this type of work?
Do you provide a written, itemized estimate?
Do you offer a labor warranty?

Red Flags to Watch For

Reluctance to provide license number or insurance certificate
Suggesting you skip the permit to save money
Vague estimates without line items
Cash-only payment requirement

Einstein Plumbing USA Credentials

Fully licensed and insured in Illinois. Founded 2011 by Nick Jancovic. We pull permits on every applicable job, provide detailed line-item estimates, and back all labor with a 1-year guarantee.