Plumbing License in Arizona: Fees, Requirements & Startup Costs
Quick answer: Arizona’s Registrar of Contractors licenses the plumbing contracting business through a qualifying party. A new operator chooses C-37 commercial, R-37 residential, or CR-37 dual scope. The ROC fee schedule lists initial application and license charges of $100 and $480 for C-37, $80 and $270 for R-37, or $100 and $380 for CR-37; new residential and dual licenses also have a Recovery Fund assessment.
Choose the work before the classification
C-37 covers commercial plumbing within its recorded property-line scope. R-37 addresses residential plumbing, including the solar-related classification language in the ROC record. CR-37 combines residential and commercial scopes. The distinction affects where the company can bid and which bond and Recovery Fund obligations apply. Compare the advertised services with the ROC classifications; some older residential subclasses in the data are closed to new licenses.
The license belongs to the contracting business, with a qualifying party responsible for demonstrating the trade qualification. The qualifying party is not a separate state journeyman or master license from ROC. An owner, member, officer, or employee can fill that role under the record’s rules. A firm relying on an employee qualifier should plan for what happens if that relationship ends.
Licensing in Arizona
Jurisdiction: state
Authority: Arizona Registrar of Contractors (ROC)
Contractor licensing is statewide via the Arizona Registrar of Contractors (ROC). ROC issues business (contractor) licenses only; there is no separate state individual trade license issued by ROC - the individual role is the 'qualifying party'.
C-37 (Specialty Commercial)
BUSINESS C-37 Plumbing: installation, alteration and repair of all plumbing within property lines, not on public easements/right-of-way.
| Fee | Amount | Period (years) |
|---|---|---|
| New license application fee, Specialty Commercial (C) | $100 OFFICIAL FEE Source — roc.az.gov | — |
| Initial license fee (two-year license), Specialty Commercial (C) | $480 OFFICIAL FEE Source — roc.az.gov | 2 |
| Renewal license fee, Specialty Commercial (C) | $480 OFFICIAL FEE Source — roc.az.gov | 2 |
| AZ Statutes and Rules Training Course and Exam (SRE), paid to Gmetrix; required of the qualifying party, cannot be waived | $61 OFFICIAL FEE Source — roc.az.gov | — |
| Trade-specific exam, paid to PSI (waivable per R4-9-106(E)) | $66 OFFICIAL FEE Source — roc.az.gov | — |
R-37 (Specialty Residential)
BUSINESS R-37 Plumbing, Including Solar: water and gas piping systems, water-sprinkler fire protection, sewage treatment systems.
| Fee | Amount | Period (years) |
|---|---|---|
| New license application fee, Specialty Residential (R) | $80 OFFICIAL FEE Source — roc.az.gov | — |
| Initial license fee (two-year license), Specialty Residential (R) | $270 OFFICIAL FEE Source — roc.az.gov | 2 |
| Residential Recovery Fund assessment on NEW license, Specialty Residential (R) | $370 OFFICIAL FEE Source — roc.az.gov | 2 |
| Renewal license fee, Specialty Residential (R) | $270 OFFICIAL FEE Source — roc.az.gov | 2 |
| Recovery Fund assessment on RENEWAL, Specialty Residential (R) | $270 OFFICIAL FEE Source — roc.az.gov | 2 |
| AZ Statutes and Rules Training Course and Exam (SRE), paid to Gmetrix; required of the qualifying party, cannot be waived | $61 OFFICIAL FEE Source — roc.az.gov | — |
| Trade-specific exam, paid to PSI (waivable per R4-9-106(E)) | $66 OFFICIAL FEE Source — roc.az.gov | — |
CR-37 (Specialty Dual)
BUSINESS CR-37 Plumbing: scopes of commercial C-37 and residential R-37R combined.
| Fee | Amount | Period (years) |
|---|---|---|
| New license application fee, Specialty Dual (CR) | $100 OFFICIAL FEE Source — roc.az.gov | — |
| Initial license fee (two-year license), Specialty Dual (CR) | $380 OFFICIAL FEE Source — roc.az.gov | 2 |
| Residential Recovery Fund assessment on NEW license, Specialty Dual (CR) | $370 OFFICIAL FEE Source — roc.az.gov | 2 |
| Renewal license fee, Specialty Dual (CR) | $380 OFFICIAL FEE Source — roc.az.gov | 2 |
| Recovery Fund assessment on RENEWAL, Specialty Dual (CR) | $270 OFFICIAL FEE Source — roc.az.gov | 2 |
| AZ Statutes and Rules Training Course and Exam (SRE), paid to Gmetrix; required of the qualifying party, cannot be waived | $61 OFFICIAL FEE Source — roc.az.gov | — |
| Trade-specific exam, paid to PSI (waivable per R4-9-106(E)) | $66 OFFICIAL FEE Source — roc.az.gov | — |
Qualifying Party (individual)
INDIVIDUAL Not a separate license: the person (owner, member, officer or employee) who qualifies the business license; must pass SRE + trade exam and meet experience rule. May qualify one additional entity only with 25%+ common ownership (A.R.S. 32-1127).
Exam: Provider: PSI (trade exam, $66) + Gmetrix (Statutes and Rules Exam, $61); pass mark 70% · Fee: 66 · Source
Experience: Qualifying party: minimum four years' practical or management trade experience, at least two within the last ten years (A.R.S. 32-1122(E)(1)); documentation waived if the QP is/was a QP for an Arizona licensee in the same classification.
Bond: $2,500 OFFICIAL FEE Source — roc.az.gov
$50,000 OFFICIAL FEE Source — roc.az.gov
$4,250 OFFICIAL FEE Source — roc.az.gov
$7,500 OFFICIAL FEE Source — roc.az.gov
Applies To: Dual (CR) license: residential + commercial specialty bond amounts combined, penal sum split on bond (e.g. minimum $4,250 + $2,500) · Source
Insurance: Requirement: No general liability insurance amount stated by ROC on the pages reviewed. A.R.S. 32-1122 requires an attestation of compliance with workers' compensation law, with the policy number (or proof of self-insurance) if the applicant is required to carry workers' comp under Title 23, ch. 6. · Source
Renewal and CE: Renewal period: 2 years · Source
Local note: ROC licenses the contracting business (sole proprietor, partnership, LLC, corporation) through a qualifying party; no Arizona state-level individual journeyman/master license for this trade was found on ROC pages reviewed. Some cities/counties may require their own registrations or trade certifications and permits; verify locally.
Data notes
Arizona ROC pages were reviewed on September 24, 2026. Fee page states 'Effective 7/1/2014'. Initial Recovery Fund assessment on new residential/dual licenses is $370, renewal $270 (statute caps assessment at $600). Continuing-education hours were not confirmed: no continuing-education requirement was stated on the ROC pages reviewed (not confirmed either way). Several R-37R residential plumbing subclassifications are closed to new licenses per ROC classifications page.
Verified: 2026-09-24
Exams and experience for the qualifier
Arizona’s record requires the Statutes and Rules training course and exam for the qualifying party; it says that exam cannot be waived. The trade exam may be waivable under the cited rule. The experience standard looks at practical or management work in the classification, including recent work. Collect evidence before promising an opening date, and ask ROC whether any prior qualifying-party status changes the documentation needed.
The application includes a background check for people named in it. The record also describes workers’ compensation compliance attestation where that law applies. The ROC pages reviewed do not state a general liability minimum, so a startup should seek an insurance quote based on its actual contracts and property-damage exposure without treating an unrecorded minimum as verified.
Bond and Recovery Fund are different obligations
ROC bond amounts vary with classification and contemplated work volume. A residential specialty bond follows a different schedule from a commercial specialty bond; dual applicants combine the applicable pieces. The new residential or dual license also carries an initial Recovery Fund assessment in the fee record. The bond’s face amount is not the same thing as the premium paid to obtain it. Ask a surety to price the required instrument for the selected class and volume.
ROC issues the statewide contractor license, but city or county registrations, trade certifications, permits, and inspections may still apply. A service territory crossing municipal boundaries needs a permit map. Check each jurisdiction before giving a customer a start date, especially for water-heater installations, repipes, and new plumbing systems.
Model the Arizona operation
A residential repair route may prioritize stocked parts, drain tools, and rapid scheduling. A commercial installation company may spend more on material staging and receivables capacity. Choose the classification in the preset and replace market assumptions with the company’s vehicle, surety, and insurance quotes. Do not total all classification fees together: they describe different license paths.
| Cost category | Range | Basis |
|---|---|---|
| Licensing | Varies by state — see license table | Official fees depend on state and structure |
| Business formation | Varies by state — see license table | Official fees depend on state and structure |
| Insurance (first year) | $1,750 MARKET ESTIMATE Source | Selected coverage |
| Vehicle | $0–$48,400 MARKET ESTIMATE Source | Own vehicle to cash purchase |
| Tools & equipment | $830–$7,650 MARKET ESTIMATE Source | Basic to pro priced kit anchors |
| Software (first year) | $590–$6,000 MARKET ESTIMATE Source | Basic to pro annual subscription |
Marketing, payroll, working capital, permits: set in the calculator.
Startup Cost Calculator
Estimated startup cost: $12,500–$14,900
Estimated startup cost: $12,500–$14,900. Break-even at about 7 jobs per month.
| Licensing & exam fees | $707–$977 OFFICIALLicense details |
|---|---|
| Business formation (state filing) | $50 OFFICIAL |
| Insurance (first year) | $1,750 MARKET ESTIMATEGeneral liability |
| Vehicle acquisition | $0 YOUR INPUTYour existing vehicle; acquisition cost $0Vehicle price sources |
| Tools & equipment | $3,100 MARKET ESTIMATEExcludes unpriced kit items: Pipe wrenches, Tubing cutter, Drain auger, Ladder, Safety gearStarter kit items
|
| Software (first year) | $590–$2,250 MARKET ESTIMATEPublished monthly list price × 12Software price sources
|
| Launch marketing | $1,500 YOUR INPUTYour input — default: 3 months × $500 |
| Payroll reserve | $0 CALCULATEDBLS median wage × 173 hours/month × employees × employer taxes and ECEC benefits × working-capital months |
| Working capital | $4,800–$5,250 CALCULATEDMonthly overhead × working-capital months |
| Permits & compliance | $0 YOUR INPUTYour input — default $0; local requirements may apply |
Monthly overhead: $1,600–$1,750 · Annual operating: $19,300–$21,000 · Break-even: 7 jobs/month
Vehicle operating per month: $760 CALCULATED
Phone and admin per month: $150 YOUR INPUT
Show formula
Startup total is the sum of available first-year cost lines. Monthly overhead includes insurance, software, marketing, vehicle operating, phone and admin, and payroll. Break-even jobs = monthly overhead ÷ (average ticket × gross margin).
For the wider business plan, see the startup guide, license comparison, and pricing guide. ROC’s application guidance is the authority for current forms and check steps.
Official sources
- roc.az.gov — New license application fee, Specialty Commercial (C)
- api.bls.gov — BLS OEWS Plumbers, Pipefitters, and Steamfitters
- azcc.gov — Arizona LLC filing fee
Market sources
- www.insureon.com — Insureon
- www.ramtrucks.com — 2026 Ram ProMaster cargo van (base)
- www.cars.com — 2026 Ford F-150 XL (base)
- www.cars.com — 2026 Ford Transit-150 cargo van (base, T-150 130in low roof RWD)
- www.coxautoinc.com — Used vehicle average listing price (all segments, not cargo-van specific)
- www.walmart.com — Milwaukee M18 FORCE LOGIC 2922-20 press tool (ONE-KEY)
- www.walmart.com — Milwaukee 2773-22L M18 Force Logic long throw press tool kit 1/2-1 in.
- www.walmart.com — RIDGID K-400 drum drain cleaning machine
- www.getjobber.com — Jobber
- www.housecallpro.com — Housecall Pro
- quickbooks.intuit.com — QuickBooks Online
Last updated: September 24, 2026