Illinois Contractor License Lookup

About Illinois contractor licensing

Illinois is not a one-board statewide contractor state. The Department of Financial and Professional Regulation is the official state source for regulated trades, but broad general contractor requirements often depend on the municipality, with Chicago and some suburbs using their own local systems. Homeowners need to verify both layers when relevant.

How licensing works in Illinois

In Illinois, statewide verification usually applies to specific professional trades and occupations, while general contractor oversight is often local. Chicago maintains its own contractor licensing structure, and other municipalities may require registration, bonding, or local approval. That means a contractor can be legitimate in one city and not fully cleared to work in another. For homeowners, the practical workflow is to check state-regulated trades first and then confirm the exact local rules where the project sits.

What to verify in Illinois

Use IDFPR's lookup for any state-regulated trade involved in the project, such as plumbing or electrical work. Then contact or search the city or village building department for the property address to confirm whether a local general contractor license or registration is required. Look for active status, exact legal name, and any discipline or expiration information. In Chicago, use the city's licensing system rather than assuming a suburban credential transfers automatically.

State-specific tips

• › For Chicago projects, start with Chicago's own contractor rules before relying on any statewide explanation from the bidder.
• › If the home is in a collar suburb, verify that suburb specifically; municipal requirements vary more than many contractors admit.
• › Ask who is pulling the permit and under what credential, then confirm that exact entity with the local building department.
• › For multi-trade remodeling, verify IDFPR records for the licensed trades even if the GC itself is locally licensed.
• › Keep the property address handy during verification because Illinois contractor requirements often change by municipality, not just by state law.