How do I file a complaint against a plumbing contractor in Arizona?

The ROC handles complaints against licensed contractors only. That is the single most important thing to get right before you start. If your plumber holds an Arizona ROC license, the agency has authority to investigate the job, hold the contractor to the building code and the contract, and discipline the license. If the person was not licensed, the ROC cannot discipline a license that does not exist, and you are pointed toward other remedies such as the courts or the Attorney General.

Any person who is damaged by a licensed contractor's act can file. That includes a homeowner, a property owner, a tenant, or another contractor. You do not have to be the one who signed the contract, though being the owner or the customer makes the case cleaner.

Before you file, confirm the license. You can look up any contractor by name or license number on the ROC website to check the status, classification, and bond. The plumbing classifications are C-37 (commercial) and C-77 (residential and solar), while sewer, drain, and pipe-laying work falls under A-12. If you are unsure whether your contractor is even licensed, see our guide on how to verify a plumber's license in Arizona, and our explainer on the difference between a licensed contractor and a handyman in Arizona.

You generally have to file within two years. Under A.R.S. 32-1155, a complaint is filed in time if it comes within two years from the date the alleged violation happened, was discovered, or reasonably should have been discovered, whichever is later. For new home construction, the clock is tied to the close of escrow rather than the date the tools were put down.

The statute sets the outer limit plainly. A.R.S. 32-1155 states that the Registrar "shall not act upon a complaint against a contractor if the complaint is filed more than two years after the commission of the act." Because the start date can turn on when a hidden problem surfaced, do not assume an old job is automatically out of bounds, but do not sit on a fresh problem either.

A few points worth keeping in mind:

• The two-year window is a hard cutoff for the agency to take action, so file early rather than late.
• Hidden defects, like a slab leak or a buried drain line, may start the clock when you discover the problem, not when the work finished.
• Timeframes and rules can change, so confirm the current deadline with the ROC before you rely on it.

The process is built to be done by an ordinary homeowner without a lawyer. Gather your paperwork first, then file, then cooperate with the inspection. Here is the order of operations.

1. 1Collect your records. Pull together the signed contract, any change orders, invoices and proof of payment (canceled checks, card statements, receipts), permits, and a written timeline of what happened. Take clear photos or video of the defective work.
2. 2Confirm the license. Look up the contractor at roc.az.gov so you have the correct license number and legal business name on hand. The complaint targets the license, so this detail matters.
3. 3File online at roc.az.gov. Use the ROC complaint portal to submit a written complaint. You describe the problem, attach your evidence, and identify the contractor by license number. Paper filing is also available if you cannot file online.
4. 4The ROC notifies the contractor. Once the complaint is accepted, the agency sends it to the contractor, who gets a chance to respond and, in many cases, to fix the problem.
5. 5An inspector schedules a site visit. The ROC often sends an inspector to look at the work and judge it against the adopted building code and the contract. The inspector documents what passes and what fails.
6. 6A corrective-work directive may follow. If the inspector finds violations, the ROC can issue a written corrective-work order that tells the contractor exactly what to repair and sets a deadline.
7. 7Citation and hearing if it is not resolved. A contractor who ignores a valid corrective-work order can be cited. Unresolved cases move to an administrative hearing, where the ROC can impose discipline.

Keep copies of everything you submit, and respond quickly to any request from the inspector or case manager. A complaint that stalls because the agency cannot reach you slows down your own repair.

The ROC enforces standards and disciplines licenses. It does not act as a small-claims court that writes you a check for your losses. Knowing the line between the two saves a lot of frustration.

On the enforcement side, the agency can order the contractor to redo or repair defective work, and under A.R.S. 32-1154 it can suspend or revoke a license for grounds such as poor workmanship, failure to follow the building code, abandoning a job, or violating the contract. The threat to a contractor's license carries real weight, and many disputes get fixed once a complaint is on file.

What the ROC will not do is award you money damages directly. If your loss is mostly financial, there is a separate program. The Residential Contractors' Recovery Fund under A.R.S. 32-1132 can reimburse an eligible owner-occupant of a residence, up to set limits, for actual damages caused by a licensed residential contractor whose license was suspended or revoked as a result of the complaint. The fund only applies to licensed contractors, which is one more reason the license status decides your whole strategy. See our page on filing an Arizona ROC Recovery Fund claim for how that works and what the caps are.

If the person who did the work held no license, the ROC complaint path mostly closes, and the Recovery Fund does not apply. You still have options, they just run through different agencies and the courts.

• Arizona Attorney General consumer complaint. The AG's office takes consumer complaints about deceptive or unfair business practices and may investigate patterns of fraud. File at azag.gov. This is useful when the issue is a scam, a no-show after a deposit, or misleading sales tactics.
• Small claims or civil court. To recover money, you can sue. Arizona small claims court handles disputes up to a set dollar limit and is designed for self-represented people; larger claims go to justice or superior court. A court judgment is how you actually collect, since the ROC does not order payment.
• The contractor's bond. Licensed contractors post a bond, and you may be able to make a claim against it for certain losses. The ROC license record shows the bond information.

You can pursue more than one of these at the same time. Filing an ROC complaint does not stop you from also suing for your money, and the two can support each other.

Arizona's process and time limits do change, so treat this as a starting map and confirm the current steps and deadlines with the ROC at roc.az.gov before you file. When the work involves your sewer line, water heater, or gas line, getting it inspected by another licensed plumber first also gives you a clear, documented record to attach to your complaint.