Illinois Contractor License Requirements
Do You Need a Contractor License in Illinois?
Illinois has no statewide general contractor license, and cities or counties set the rules. Threshold: None statewide. Trades such as electrical and plumbing often have separate rules. Confirm with the official site, because rules change.
Open the Official Illinois Site
- System
- Local Only
- When it applies
- None statewide
- Summary checked
- By its authors, 2026-09-04 to 2026-10-26. Not verified by us against state law.
How to Check a Contractor in Illinois
Call the building department for the city or county where the work will happen, and ask what license or registration it requires. Then ask the contractor for that number. Without a state database, insurance certificates and references carry more weight.
Common Questions
How do you check a contractor in Illinois?
Call the building department for the city or county where the work will happen, and ask what license or registration it requires. Then ask the contractor for that number. Without a state database, insurance certificates and references carry more weight.
Does a license mean the contractor is insured?
Not always. Ask for a current certificate of liability insurance and proof of workers’ compensation, and call the insurer to confirm if the job is large.
Contractors in Illinois
All 432 listed in Illinois, most in Chicago, Naperville, Champaign, Pekin, Bloomington, Springfield.
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