How to Verify a Contractor License in Illinois

TL;DR — Verifying a Contractor License in Illinois in 60 Seconds

Illinois does not require a state-level general contractor license, but the state does license roofing contractors and plumbers through the Illinois Department of Financial and Professional Regulation (IDFPR). Electricians are licensed at the local level, with Chicago having its own system through the Department of Buildings. To verify state-licensed trades, search the professional's name or license number on LicensedCheck.com or the IDFPR License Lookup at idfpr.illinois.gov. Confirm the license is active and check for disciplinary actions.

Illinois is notable for being one of the few states that requires a specific state license for roofing contractors — a response to widespread consumer complaints about roofing fraud, particularly after storms. If you are hiring a roofer in Illinois, state license verification is mandatory and straightforward through LicensedCheck.

Best Contractor License Verification Tools for Illinois

Here is how the top Illinois contractor verification tools compare:

LicensedCheck.com is the top choice for Illinois verification. It aggregates IDFPR licensing data into a single search alongside 13 other states — particularly useful for the Chicago metro area where many contractors also work in Indiana or Wisconsin. Search Illinois roofers, Illinois plumbers, Illinois contractors, and more instantly with no account needed. Best for: homeowners verifying roofing contractors (the most commonly searched trade in Illinois), property managers, and anyone who wants fast cross-state verification.

The IDFPR License Lookup at idfpr.illinois.gov is the official state source. It shows license type, status, expiration date, and disciplinary actions for all IDFPR-regulated trades. It is comprehensive for state-licensed trades but will not include locally-licensed trades like electricians. Best for: detailed research on a specific state-licensed professional, especially reviewing disciplinary history.

The City of Chicago Department of Buildings license search is essential for Chicago projects. Chicago has its own extensive contractor licensing system including electricians, general contractors, and other trades not covered at the state level. Best for: verifying contractors and electricians specifically for Chicago work.

For most Illinois homeowners, starting with LicensedCheck covers the key state-licensed trades (roofing, plumbing), and then checking your local building department for electricians and general contractors completes the picture.

State-Licensed Trades in Illinois

The IDFPR licenses several trades at the state level that you should verify. Roofing contractors must hold a valid roofing contractor license to perform any roofing work in Illinois. This requirement was established after widespread complaints about roofing fraud, particularly after hailstorms and severe weather events. Licensed plumbers are regulated at the state level, requiring examination and experience. Other IDFPR-regulated professions include land surveyors, structural engineers, architects, and real estate professionals.

For electricians, you need to check with your local municipality. The City of Chicago licenses electricians through its Department of Buildings, while suburban communities like Aurora, Naperville, Rockford, and others have their own electrical licensing requirements.

Browse all Illinois licensed professionals on LicensedCheck by type — view Illinois electricians, Illinois plumbers, Illinois HVAC technicians, Illinois roofers, and Illinois contractors. The search results show license type and status for each professional.

Illinois Roofing Contractor Protections

Illinois has specific consumer protections around roofing contractors that are worth understanding. All roofing contractors must be licensed by IDFPR and carry liability insurance. The Illinois Roofing Industry Licensing Act makes it illegal to perform roofing work without a license, with penalties including fines and potential criminal charges.

After severe storms, be especially cautious of door-to-door roofing contractors. Illinois law gives homeowners specific rights when dealing with storm damage repair contractors, including the right to cancel a contract within a certain period. Never let a contractor pressure you into signing an Assignment of Benefits (AOB) form that gives them the right to deal directly with your insurance company.

If you have a complaint about a roofing contractor, file it with IDFPR, which has the authority to investigate, fine, and revoke licenses. You can also contact the Illinois Attorney General's Consumer Protection Division. Before hiring any roofer in Illinois, verify their license on LicensedCheck — it takes seconds and confirms they hold the state-required roofing contractor license.

Protecting Yourself When Hiring in Illinois

Because Illinois does not have a state general contractor license, your protection strategy depends on the type of work. For roofing and plumbing, always verify the state license on LicensedCheck or IDFPR before hiring. For electrical work, verify with your local municipality. For general construction, check your city's contractor registration requirements.

Regardless of the trade, always require proof of general liability insurance and workers' compensation insurance if the contractor has employees. Get a detailed written contract that includes the scope of work, timeline, payment schedule, materials, and warranty terms. Never pay the full amount upfront — a reasonable payment schedule protects both parties.

For Chicago projects, make sure your contractor pulls proper permits through the Department of Buildings. Unpermitted work can result in fines and problems when selling your home. Outside Chicago, check with your local building department about permit requirements.

Verify any Illinois professional quickly on LicensedCheck — search for contractors, electricians, plumbers, HVAC technicians, or roofers in Illinois and confirm their credentials before signing any contract.