License Information

Per Wis. Stats. § 145.06, no person may engage in or work at plumbing in the state unless licensed to do so by the Department.

Pursuant to Wis. Stats. § 145.14, the plumbing activities that may be undertaken by a person who holds a credential as a licensed Master Plumber Restricted Service, licensed Journeyman Plumber Restricted Service, or registered Plumbing Learner Restricted Service shall be limited to installing septic tanks for private on-site wastewater treatment systems, drain fields designed to serve such septic tanks, and sewer service from the septic tank or sewer extensions from mains to the immediate inside or proposed inside foundation wall of the building. Such persons may also install water services, stormwater use systems, and reclaimed water systems if the services or systems are to be located outside the foundation wall of the building.

Per Wis. Admin. Code § SPS 305.92, for any plumbing installation that requires a uniform building permit under Wis. Admin. Code § SPS 320.08, a person who holds a Master Plumber Restricted Appliance license or a Master Plumber Restricted Service license may not commence installation of plumbing until a permit is issued for the installation.

Application for License

Reinstate a Master Plumber Restricted Service License that has been Expired more than 4 Years

1. Complete requirements for the method you are applying under (see Form #3131 for more information).
2. Submit an application, supporting documentation and fee:
• Application for Master Plumber Restricted Service License (Form #3131)
• $75.00 total fee ($20.00 application fee, $30.00 exam fee, and $25.00 late renewal fee)

Renewal Information

Requirements

• FEE (See Renewal Dates and Fees)
• 12 Hours of Continuing Education
• To view your current CE hours completed see the License Look-Up page, enter your credential number, and click on your name.
• To view approved courses for CE see the Trades Continuing Education Course Provider List.

Renewal Methods

• Online Log In: Renew a Credential Online
• Mail Renewal Reminder/Application to:

Department of Safety and Professional Services

Trades Credentialing Unit
PO Box 78780
Milwaukee, WI 53293-0780​

If you have questions regarding your renewal, please email DSPSCredTrades@wisconsin.gov.

When mailing your renewal, please allow up to 21 calendar days [per Wis. Admin. Code SPS 305.04 (1)] from the date your payment is processed to receive an update regarding your renewal.
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Getting Certified to Work with Lead Based Paint​

Training and certification are required for professionals who offer or conduct regulated lead-based paint activities in pre-1978 housing and child-occupied facilities. These activities include:

• Abatement of Lead Hazards
• Lead Testing, Inspection, and Risk Assessment
• Most paint-disturbing renovation work (for example, replacing windows, scraping paint prior to re-painting)
• Post renovation and post-abatement clearance (including dust wipe sampling to measure lead dust left behind)

By getting certified and working safely, you protect your own and others' health, and show professional responsibility. For more information about certification, visit the Wisconsin Department of Health Services​ website.​​