Quick Reference Table
Label | Value |
|---|---|
License Type | Apprentice, Journeyman, Master, Learner (Restricted Service/Appliance), Utility Contractor, Pipelayer |
Regulating Agency | Wisconsin Department of Safety and Professional Services (DSPS), Division of Industry Services |
Experience Required | Varies (Apprentice: enrollment; Journeyman: 4+ years apprenticeship; Master: 3 years as Journeyman; see sections below) |
Exam | Journeyman/Master levels: DSPS exams administered via Pearson VUE; open-book, 70% passing score |
Renewal Cycle | Apprentice: Annual; Journeyman and above: Biennial (typical, but verify with DSPS) |
Continuing Education | Journeyman: 24 hours; Journeyman-Restricted: 12 hours; Master: see DSPS |
Fees | Journeyman: $10 app, $20 exam, $180 license; Master: $20 app, $30 exam, $500 license (as of Aug 2025; see SPS 305.02 table) |
Official Links | DSPS Professions Directory | LicensE Online Portal | Plumbing Program & Forms |
Who Needs a License in Wisconsin?
In Wisconsin, you must hold a DSPS-issued plumbing license or registration to legally perform, supervise, or contract plumbing work. Plumbing license requirements in Wisconsin apply to both residential and commercial jobs. This includes installing, repairing, or modifying water supply lines, sanitary sewers, storm sewers, or related systems, whether inside or outside of buildings.
Plumbing regulations cover everyone from apprentices and learners to journeyman plumbers, master plumbers, utility contractors, and firm-level contractor registrants. Apprentices must register within 30 days of starting an apprenticeship and work under direct supervision. Utility contractors working on external water and sewer lines must register and use properly licensed staff for plumbing tasks. There are restricted service and appliance learner and journeyman licenses for those focusing on limited appliance or service work.
You must obtain a different credential for each scope of work. Employees performing plumbing tasks are required to register and be supervised as defined by their license class. If you own or manage a plumbing contracting firm, you must also register the firm, designate a responsible master plumber, and provide required insurance and bonding. If you are bidding any plumbing work in Wisconsin, first confirm which category applies to you under DSPS rules.
Plumbing License Requirements in Wisconsin: License Types
Wisconsin issues several plumbing license and registration types, each with its own scope of permitted work. Understanding these distinctions is critical for legal compliance. Plumbing license requirements in Wisconsin are strict about the scope of each category.
Plumbing Apprentice: Registered with DSPS after signing an approved apprenticeship contract; must work under supervision; no independent scope.
Plumbing Learner-Restricted Appliance: Registered for work limited to installing or servicing specialty plumbing appliances (water heaters, dishwashers, etc.); must work under a licensed master plumber.
Plumbing Learner-Restricted Service: Registered for non-appliance, service-related plumbing only (often septic, storm, or sewer work); specific training required.
Journeyman Plumber: Licensed after completing apprenticeship and passing required exams; can work on the full scope of plumbing installation and repair under general supervision.
Journeyman Plumber-Restricted Appliance/Service: Licensed to perform only appliance or restricted service work; must meet apprenticeship and exam requirements specific to restriction.
Master Plumber: Licensed to perform, supervise, and direct plumbing work of any scope. Can serve as responsible party for a plumbing contractor firm.
Master Plumber-Restricted Appliance/Service: Licensed to supervise and perform only the specific restricted appliance or restricted service work, not the full plumbing trade.
Utility Contractor: Licensed for external plumbing installations, such as water services, building sewers, and mains outside the building foundation. Must employ licensed/registered plumbers for any regulated work.
Pipelayer: Registered for minor external piping and underground work; minimal requirements; limited scope.
Each license and registration type has its own experience, education, examination, and continuing education requirements. Confirm which applies before you apply for a plumbing license in Wisconsin.
How to Get Licensed in Wisconsin
The process for meeting plumbing license requirements in Wisconsin depends on the category, but most follow similar steps. All applications and renewals are submitted electronically through the DSPS LicensE portal.
Determine your license type. Identify the scope of work and the appropriate credential for your duties, apprentice, journeyman, master, restricted, or contractor registration.
Gather required documentation. This includes proof of training (apprenticeship agreements or transcripts), previous credentials, and for learners, proof of code class hours or work experience.
Create a LicensE account. Visit license.wi.gov and register or log in to get access to applications and exam scheduling for plumbing licenses.
Complete and upload forms. Fill out the application for your category (such as FM3126 for Journeyman, FM3133 for Apprentice) and upload supporting documents. If you are an apprentice, submit within 30 days of apprenticeship contract start.
Pay all required fees. Application, exam, and license fees must be paid via the LicensE system. See the Fees section below for current rates as of August 2025.
Wait for DSPS review. DSPS reviews your application. If you qualify, you will be notified of exam eligibility for categories that require testing.
Schedule and take your exam (if required). Log in to LicensE to schedule at a DSPS or Pearson VUE testing center. Review testing rules carefully before attending.
Upon passing, receive your license. You can access proof of license in the LicensE portal under “My Approved Licenses.” The digital credential serves as your official license record.
If licensing a contractor firm: Register the firm, designate a Responsible Master Plumber, and submit proof of required insurance and bonding (see Application Requirements below).
Always check the DSPS professions list for credential-specific forms and application checklists before starting the process.
Application Requirements
To meet plumbing license requirements in Wisconsin, you must provide specific documentation and meet all eligibility criteria for the license category. Requirements vary based on license level.
Experience and Age
For apprentices, you must be enrolled in a state or federally recognized apprenticeship and submit a copy of the agreement. Plumbing learners (restricted) must be at least 16 years old and show 12th-grade education (high school or equivalent). Plumbing learner-restricted service requires documentation of formal training: 40 hours plumbing code, 20 hours blueprint reading, 10 hours each in mathematics and first aid/safety, and 20 hours on building-levels and transit (see Wis. Admin. Code § SPS 305.96 for details).
Journeyman plumber applicants need to complete a 4-year state apprenticeship (or equivalent 5-year out-of-state experience with 576 hours classroom). For restricted journeyman, at least 1,000 hours of plumbing work registered as a learner, plus shop training, are required.
Master plumber applicants must provide evidence of at least 1,000 hours per year for three years as a licensed journeyman or a degree in engineering from an accredited institution. Restricted master applicants need two years as a restricted journeyman with similar hours (as detailed on form FM3131).
Bond and Insurance
Individual plumber credentials do not require bond or insurance. However, to register a plumbing contractor firm in Wisconsin, your company must obtain a surety bond and liability insurance that meet or exceed DSPS minimum requirements. The Responsible Master Plumber must be identified, and insurance documents must be uploaded at the time of application. The DSPS Plumbing Contractor Registration page outlines this requirement.
Background Check and Federal Certifications
Currently, DSPS does not require criminal background checks or fingerprinting for state plumbing licenses. No federal certification is required for Wisconsin plumbing licenses.
Exams
Journeyman and master-level plumbing licenses in Wisconsin require passing a two-part, open-book exam. Plumbing license requirements in Wisconsin specify a minimum passing score of 70% on each part.
Exam Administrator and Format
DSPS plumbing exams are scheduled through Pearson VUE using the DSPS LicensE portal. All testing is in-person, with strict reference material rules. You may only bring a binder with approved publications: Wisconsin Statutes § 145, Admin Code SPS 305 and SPS 381–387, Wis. Stat. § 106, Admin Code SPS 302 and SPS 325, plus specific 2019 editions of NFPA 13D and NFPA 24, and POWTS component manuals. No extra notes, removable tabs, or sticky notes are allowed. Review the official Journeyman Exam information for any updates before your test date.
Exam Fees and Retakes
Each exam attempt requires a fee: $30 for master-level, $20 for journeyman-level exams as of August 2025. If you fail, you must pay the exam fee and reschedule through LicensE. There is no waiting period for re-examination stated in DSPS materials.
Exemptions
Plumbing apprentices and restricted learners do not take an exam for initial registration. Only higher licensure levels must test.
Fees
Plumbing license requirements in Wisconsin include mandatory fees at each stage. Below are statutory fees from the official fee table (Wis. Admin. Code § SPS 305.02, as of August 2025). Fees are paid through LicensE when applying.
Credential | Application | Exam | License/Registration |
|---|---|---|---|
Master Plumber | $20 | $30 | $500 |
Journeyman Plumber | $10 | $20 | $180 |
Apprentice | $15 | N/A | $15 |
Utility Contractor | $10 | $30 | $500 |
Pipelayer | $15 | N/A | $180 |
If you use the electronic system to submit applications, DSPS waives the application fee. Late renewal fees: $15 for online submissions (see SPS 305.02, August 2025, and footnotes; verify latest fees here).
Firm-level contractor registration also requires proof of insurance and bonding, but the DSPS does not publish pre-set bond amounts on their website (as of August 2025). Confirm additional business registration expenses with DSPS directly.
Renewal and Continuing Education
To maintain plumbing license requirements in Wisconsin, you must renew your credential and complete required continuing education (CE) every renewal period. Renewal cycles vary by credential.
Renewal Cycle
Plumbing apprentices must renew annually. Journeyman, master, and utility contractor licenses are typically renewed every two years (biennially), but the precise renewal schedule is set by DSPS. Always check renewal deadlines for your category in your personal DSPS LicensE portal or the Trades Renewal Dates and Fees PDF. Failing to renew your plumbing license suspends your legal ability to practice.
Continuing Education (CE)
Journeyman Plumber: 24 hours of board-approved continuing education required before renewal, as per DSPS board packets and SPS 305.08 (confirm current hours at renewal).
Journeyman-Restricted Service: 12 hours of continuing education per renewal period, established by code SPS 305.945.
Master Plumber: Official CE policy is not posted on the DSPS main page; board packets and most third-party guides cite 16 hours biennially. Confirm your requirement directly with DSPS before renewal.
If you miss the CE deadline, your license cannot be renewed until the requirement is met. Submitting your renewal after the deadline incurs a late fee ($15 online). If your license lapses for a long period, you may be subject to additional reinstatement requirements at DSPS discretion.
Reciprocity
No formal reciprocity exists for out-of-state plumbing licenses in Wisconsin. Plumbing license requirements in Wisconsin state that out-of-state journeyman applicants must meet Wisconsin's apprenticeship and classroom hour standards. Masters must meet Wisconsin master-level prerequisites regardless of prior credentials.
Endorsement or transfer is not available. Out-of-state contractors must apply as new candidates, submitting documentation of equivalent work history, classroom training, and passing the DSPS exam. Always confirm necessary documents for endorsement by checking with DSPS directly if you are licensed in another state.
Official Links
Apprentice Application (FM3133)
For additional forms, exam details, and CE policy, see the DSPS Plumbing Program main page.
