Illinois Contractor Dispute Demand Letter
815 ILCS 513
Illinois Department of Financial and Professional Regulation
A contractor dispute — whether the work was abandoned, never finished, or so defective it needs to be torn out and redone — is one of the most stressful situations a homeowner can face. Illinois law provides real recourse. Under 815 ILCS 513, contractors are licensed and regulated by the Illinois Department of Financial and Professional Regulation, and there are formal mechanisms to hold them accountable.
The most important thing you can do right now is get your dispute in writing. A demand letter documents exactly what was promised, what went wrong, what you've already paid, and what you're demanding — whether that's a refund, completion of work, or payment for the cost to hire a replacement contractor.
DemandFast generates a Illinois-specific contractor demand letter that cites 815 ILCS 513, references the contractor's licensing obligations under Illinois law, and formally demands remedy within a specified timeframe. The letter is formatted for certified mail so you have proof of delivery. If your contractor ignores it, you have a complete paper trail ready for a licensing board complaint or small claims court.
File complaint with IDFPR. Licensing board complaints carry real consequences for contractors — loss of license, fines, and a public record of the complaint. Many contractors respond to a demand letter precisely to avoid that outcome.
Frequently Asked Questions
What law governs contractor disputes in Illinois?
Illinois contractor work is regulated under 815 ILCS 513. Contractors must be licensed through the Illinois Department of Financial and Professional Regulation. Unlicensed work may void the contractor's right to payment and give you additional remedies.
Do I need to give my contractor a chance to fix the work in Illinois?
Illinois law does not mandate a specific cure period, but sending a formal written demand before pursuing legal action demonstrates good faith and is strongly recommended.
How do I file a complaint against a contractor in Illinois?
File complaint with IDFPR. A formal demand letter often resolves disputes without a complaint — but if your contractor ignores it, you have documented evidence to support your filing.