How to File a Contractor Complaint: Step-by-Step Guide

Filing a complaint against a contractor is one of the most effective actions you can take when a project goes wrong — especially when the contractor is licensed. State licensing boards take complaints seriously because each licensed contractor's continued authorization to work depends on their compliance with professional standards. A board complaint triggers an investigation that can result in disciplinary action, fines, license suspension, or revocation.

Most homeowners don't know how to file a complaint or what to expect from the process. Here is a step-by-step guide.

What issues justify filing a complaint with a contractor licensing board?

Licensing boards typically accept complaints involving: work abandonment or failure to complete a project; defective workmanship that doesn't meet code or contractual standards; failure to obtain required permits or pass required inspections; fraud, misrepresentation, or deceptive practices; failure to honor a warranty; violation of licensing laws (including unlicensed work); insurance or bond lapses; and financial misconduct related to the project.

Boards generally do not resolve purely contractual payment disputes between parties who both acted in good faith. For those, mediation or small claims court are more appropriate venues. The board is the right avenue for regulatory violations that touch on consumer protection.

How do I find the right board to file a complaint with?

Identify the state contractor licensing board for the state where the work was performed. The National Association of State Contractors Licensing Agencies (NASCLA) maintains a directory of all state boards. In some states, different boards govern different trades — a general contractor board handles GC complaints, while a separate plumbing board handles plumbing complaints. Make sure you're filing with the board that issued the specific license.

Most state licensing boards have online complaint submission portals on their websites. Some require paper submissions. Filing online creates a timestamped record of your submission.

What documentation do I need before filing a complaint?

Gather: the signed contract with the contractor; all payment records (checks, bank transfers, credit card statements); all written communications (emails, texts, letters); photos of the work performed and any defects or damage; the contractor's license number; any permits and inspection records; and a written timeline of events explaining what the contractor agreed to do, what they actually did, and when each event occurred.

The more organized and specific your documentation, the more effectively the board investigator can evaluate your complaint. Complaints with detailed documentation are taken more seriously and move through the investigation process faster.

What happens after I file a complaint?

After filing, you will typically receive an acknowledgment. An investigator is assigned to review the complaint. The board contacts the contractor and gives them the opportunity to respond. The investigator may inspect the work site, review permits, and interview witnesses. Based on the investigation, the board may dismiss the complaint (insufficient evidence), issue a citation, require corrective action, or pursue formal disciplinary action.

The timeline varies by state and board workload. Simple complaints may resolve in 60–90 days; complex cases can take 6–12 months. You will typically be notified of the outcome.

Should I file a complaint even if the contractor is unlicensed?

Yes. File a complaint with the licensing board to report unlicensed activity — boards investigate and refer unlicensed contracting to enforcement. Also file a complaint with your state attorney general's consumer protection division, which may have more direct enforcement tools for unlicensed contractors. And file a police report if money was taken without work being performed.

Going forward, prevent this situation by verifying contractor licenses before hiring. CheckLicensed.comprovides instant verification for $0.99 — catching unlicensed or suspended contractors before they start work is always easier than pursuing them after.