Plumbing Installation Licensing in Wisconsin
Indexation gate: passedWisconsin plumbing regulatory compliance: Contracting for plumbing installation or replacement requires an active Plumbing Contractor credential from DSPS and oversight by a licensed Master Plumber under Wis. Stat. Chapter 145.
Applicable Licensing Requirements
Wisconsin Workers' Compensation Insurance Mandate
wi:statute:wis-stat-102-wcUnder Wis. Stat. Chapter 102, employers operating in Wisconsin with three or more employees, or with one or more employees paid $500 or more in any calendar quarter, must maintain active workers' compensation insurance.
Wisconsin Plumbing Contractor & Master Plumber Mandate
wi:statute:wis-stat-145-plumbUnder Wis. Stat. Chapter 145 and Wis. Admin. Code SPS 305.91, plumbing businesses must hold a Plumbing Contractor credential and designate a licensed Master Plumber.
Uniform Dwelling Code (UDC) Municipal Building Permits
wi:agency:local-udcUnder Wis. Stat. § 101.654(1)(a) and Wis. Admin. Code SPS 320.08, contractors must obtain local building permits for all dwelling construction, additions, structural alterations, and roof replacements, subject to mandatory verification of Dwelling Contractor credentials.
Matching Contractor Classifications
Plumbing Contractor Credential
wi:statute:wis-stat-145-plumbRelation: may_require
Plumbing piping and fixture installations require an active Plumbing Contractor credential from DSPS and a licensed Master Plumber.