Arizona licenses plumbing at the contractor level under the C-37, R-37R, and CR-37 classes. Here is the full 2026 process: experience, the SRE and trade exams, the bond schedule, ROC fees, and the qualifier requirement.
Plumbing work in Arizona is regulated at the contractor level by the Arizona Registrar of Contractors (ROC). Unlike states that issue separate journeyman and master plumber licenses, Arizona does not have a statewide journeyman or master plumber credential. You earn your plumbing license as a contractor by documenting field experience and passing two exams. This 2026 guide covers the full process: which plumbing classification fits your work, the experience requirement, the exams, the ROC fees, the bond schedule, and the step most plumbers overlook, how your individual license connects to a licensed plumbing business.
Does Arizona Require a Plumbing License?
Yes. Anyone performing plumbing work as a business in Arizona must hold the proper ROC contractor license. The ROC investigates unlicensed-contracting complaints aggressively, and working without a license can result in citations, civil penalties, and criminal exposure.
The only carve-out is the small-job handyman exemption: work valued under $1,000 (labor and materials combined) that does not require a building permit can be done without a license. Most plumbing jobs require permits, so that exemption rarely applies to real plumbing work.
The Arizona Plumbing Classifications: C-37, R-37R, and CR-37
Arizona offers plumbing in three scopes, matching the commercial / residential / dual structure used across ROC trades:
- C-37, Plumbing (Commercial). Commercial-only scope.
- R-37R, Plumbing (Residential). Residential-only scope.
- CR-37, Plumbing (Dual). Covers both residential and commercial under one license.
If you service homes only, the residential R-37R covers you. If you want to bid commercial and residential alike, the dual CR-37 gives you the broadest reach with one license. The plumbing classification covers the installation, alteration, and repair of plumbing systems, fixtures, water supply, drainage, venting, and related work.
Step 1: Meet the Experience Requirement
To serve as the qualifying party for an Arizona plumbing license, you must:
- Be at least 18 years old.
- Have a minimum of four years of verifiable experience in plumbing, earned within the past ten years.
- Up to two of those four years may come from technical training or a completed apprenticeship.
The experience must be at journeyman level or above, working under a licensed plumber, supervising, or contracting. Keep solid documentation of your work history; the ROC can request it.
Step 2: Pass the Two Required Exams
Every Arizona plumbing applicant must pass two exams:
- The Arizona Statutes and Rules Training Course and Exam (SRE). An open-book exam on Arizona contracting law and ROC rules. Passing score is 70%. The SRE fee is $54, paid directly to Gmetrix.
- The C-37 / R-37 / CR-37 Plumbing trade exam. This tests your technical plumbing knowledge. The trade exam fee is $66, paid directly to PSI, and can be taken online or at a testing center.
(Exam fees are set by the testing vendors and the ROC and are subject to change, verify the current amount with Gmetrix and PSI before registering.)
Note: We help contractors understand the licensing process and structure their path to a license. We do not sell exam prep, practice tests, or study guides, for those, work directly with an approved provider.
Step 3: The Arizona Bond Schedule for Plumbers
Arizona requires a contractor license bond, and the bond amount is tied directly to your anticipated annual gross dollar volume of work. For plumbing contractors, the schedule is:
| Annual Work Volume | Bond Amount | |---|---| | $150,000 or less | $2,500 | | Over $150,000 to $500,000 | $7,000 | | Over $500,000 to $1 million | $17,500 | | Over $1 million to $5 million | $25,000 | | Over $5 million to $10 million | $37,500 | | Over $10 million | $50,000 |
In addition, residential and dual licensees must satisfy a $200,000 consumer-protection requirement (A.R.S. § 32-1152(C)), either by furnishing a $200,000 surety bond/cash deposit or by paying into the Residential Recovery Fund (the more common choice, built into the fee schedule below).
(Bond and insurance premiums are set by the surety/insurer and the board and change over time, verify current amounts before you apply.)
Step 4: ROC Application Fees (Official 2026 Schedule)
These are the ROC's official new-license application fees for a two-year license:
| Classification | Application Fee | License Fee | Recovery Fund | Total* | |---|---|---|---|---| | Specialty Commercial (C-37) | $100 | $480 | $0 | $580 | | Specialty Residential (R-37R) | $80 | $270 | $370 | $720 | | Specialty Dual (CR-37) | $100 | $380 | $370 | $850 |
Totals do not include the SRE and trade exam fees. Residential and dual classifications include the $370 Residential Recovery Fund assessment, which satisfies the $200,000 consumer-protection requirement.
(Government and board fees are set by the Arizona ROC and are subject to change, confirm current fees at roc.az.gov before applying.)
Step 5: Background Check, Business Registration, and Insurance
To complete your application you must also:
- Complete a criminal background check and provide documentation of citizenship or legal resident status.
- Register your business entity if you are licensing under a company.
- Carry appropriate liability insurance. General contractors and commercial clients will expect a general liability policy even where the ROC's bond requirement is met.
How Long Does It Take, and What Does It Cost?
If your four years of experience are documented and you pass both exams on the first try, the ROC process typically takes a few weeks from application submission, subject to processing and background-check timelines. The hard costs include the ROC fees ($580–$850 by scope), the SRE ($54) and trade exam ($66), your bond premium, and insurance. Bond and insurance are quoted to your specific situation, so the total varies plumber to plumber.
If you are deciding between getting licensed yourself and placing a qualifier so your business can operate immediately, that depends on your timeline and experience, book a consultation and we will map it out for you.
From Plumbing License to Plumbing Contractor Business
Most guides stop at "pass the exam." But your individual plumbing license only qualifies you. In Arizona, the license is held by a company, and every licensed company needs a qualifying party, someone with the required experience and exams who is legally responsible for the license. If you own your shop and you are the qualifier, you are covered.
The problem shows up when the qualifier leaves, or when a plumbing business wants to expand into Arizona without anyone on the team holding an Arizona-qualified license. The company simply cannot operate under that classification without a qualifying party. That is where a qualifying agent comes in.
A qualifying agent is a licensed professional placed as the qualifying party for your company's license, as a full-time W-2 employee, never a percentage cut, flat fee, per-project deal, or "license rental." (Renting or lending a license is illegal in Arizona and every other state.) Their credentials let your business legally hold the license and bid work while you run the company.
If you need to fill that role, learn how hiring a qualifying agent works, read what a qualifying agent is, or see how the role applies specifically to plumbing contractors.
Frequently Asked Questions
Is there a journeyman or master plumber license in Arizona? No. Arizona does not issue statewide journeyman or master plumber licenses. Plumbing is licensed at the contractor level under the C-37, R-37R, or CR-37 classification, and your field experience is what qualifies you to take the contractor exam.
What is the difference between the C-37, R-37R, and CR-37 plumbing licenses? C-37 is commercial-only, R-37R is residential-only, and CR-37 is the dual license covering both. The dual CR-37 gives you the widest scope of work under a single license.
How much is the bond for an Arizona plumbing license? The bond ranges from $2,500 (for $150,000 or less in annual volume) up to $50,000 (for over $10 million), based on your anticipated gross work volume. Residential and dual licensees also satisfy a separate $200,000 consumer-protection requirement, usually via the Residential Recovery Fund. Bond premiums are set by the surety and change, verify before applying.
How much does an Arizona plumbing license cost? ROC application and license fees run from about $580 (commercial) to $850 (dual), plus the $54 SRE exam and $66 trade exam, plus your bond premium and insurance. Bond and insurance are quoted individually, so the total varies. All fees are set by the ROC and vendors and are subject to change.
My plumbing company's qualifier just left, what now? Your Arizona company cannot operate under the plumbing classification until you replace the qualifying party. You can qualify another eligible employee, or place a qualifying agent as a W-2 employee to hold the license. We help businesses fill that role.
Get Your Arizona Plumbing Business Licensed and Bidding
Earning your plumbing license is step one. Keeping your company qualified, when you are expanding into Arizona or you have lost the person who holds the credentials, is where plumbing businesses stall. The Licensing Company places qualifying agents as full-time W-2 employees so your company can hold the correct ROC classification and keep bidding.
Start with a consultation, explore hiring a qualifying agent, or if you hold a plumbing license yourself, see how you could become a qualifying agent. Licensing across more of the trade? Our Arizona contractor license guide, Arizona HVAC license guide, and Arizona electrician license guide round out the ROC picture.
Disclaimer: This article is provided for educational and informational purposes only. It does not constitute legal advice, licensing guidance, or an offer of services. Licensing requirements vary by jurisdiction. For specific compliance questions, contact The Licensing Company for a confidential consultation.