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Janesville, WI Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Codes adopted
Janesville Plumbing Code; Wis. SPS 381-387
Permit required for
All plumbing work except minor repairs
Who can apply
Licensed plumber, or owner of own single-family home
Plumber bonds
$1,000 performance + $5,000 indemnity/insurance
Issuing officer
Plumbing Inspector
Bond term
Dated July 1, one-year term

Summary

In the City of Janesville, Sec. 10-53 adopts the Janesville Plumbing Code and the Wisconsin Plumbing Code, SPS 381-387, by reference for every plumbing installation. Sec. 10-55 requires a permit from the Plumbing Inspector before any plumbing work beyond minor repairs, issued only to a licensed plumber or, for a single-family home, the owner-occupant.

The Wisconsin Plumbing Code, including, but not limited to, SPS 381-387 (Department of Safety and Professional Services, herein referred to as DSPS), as amended from time to time, is adopted by reference and made a part of this article as if fully set forth herein. Any act required to be performed or prohibited by such code incorporated hereby by reference is required or prohibited by this article. ... No plumbing work of any kind, except minor repairs within buildings shall hereafter be done without a permit being first issued therefor by the Plumbing Inspector.

Full Breakdown

Sec. 10-53(a) adopts the Janesville Plumbing Code on file with the City Clerk by reference, giving every provision in it the same force as if written directly into the ordinance. Sec. 10-53(b) separately adopts the Wisconsin Plumbing Code, SPS 381-387, administered by the state Department of Safety and Professional Services, applying it uniformly to sanitary and storm drainage, water supply, wastewater treatment and dispersal for buildings in the City. Sec. 10-55(a) then requires a permit from the Plumbing Inspector before any plumbing work of any kind, except minor repairs inside a building; Sec.

10-55(b) requires the permit application to be signed by a licensed plumber under the Wisconsin Administrative Plumbing Code, though an owner occupying a single-family residence may apply to do the work personally. Sec. 10-55(c) additionally requires a licensed plumber working in Janesville to file a $1,000 performance bond and either a $5,000 indemnity bond or $5,000 of liability insurance with the City Clerk, covering completed work, street or alley restoration after excavation, and City indemnification. Sec. 10-54 creates the City's Plumbing Inspector position, appointed by the City Manager, who must hold a Master or Journeyman Plumber license along with a Commercial Plumbing Inspector certification, and who tests plumbing work in person, keeping water supply piping, sewers and drains uncovered until inspected and approved.

Sec. 10-57 separately bars anyone from performing plumbing work in the City without a qualified Wisconsin license, except for repairs and stoppages that the Wisconsin Plumbing Code exempts from licensing.

Violations & Fines

Sec. 10-55(a) makes performing plumbing work beyond minor repairs without a Plumbing Inspector permit unlawful, and Sec. 10-57(a) separately bars anyone without a qualified Wisconsin plumbing license from performing plumbing work in the City at all, with narrow exceptions for repairs, stoppages and owner-occupants of single-family homes. Anyone interfering with the Plumbing Inspector's inspection authority under Sec. 10-54(d) is subject to the penalty the chapter provides, and unapproved work covered before inspection under Sec. 10-54(e) can be ordered uncovered for testing at the permit holder's expense.

Frequently Asked Questions

Do I need a permit for plumbing work in Janesville?
Yes, for anything beyond minor repairs inside a building. Sec. 10-55(a) requires a permit from the Plumbing Inspector before any plumbing work of any kind, with the application signed by a licensed plumber under the Wisconsin Administrative Plumbing Code.
Can I do my own plumbing work in Janesville?
Only in limited circumstances. Sec. 10-55(b) allows an application to be approved for plumbing work performed by the owner in a single-family residence the owner occupies; otherwise the application must be signed by someone licensed as a plumber under the Wisconsin Administrative Plumbing Code.
What bond does a plumber need to work in Janesville?
Sec. 10-55(c) requires a licensed plumber to file a $1,000 performance bond and a $5,000 indemnity bond, or a $5,000 certificate of insurance in place of the indemnity bond, with the City Clerk. The bonds cover completed work, street and alley restoration after excavation, and indemnifying the City against claims.

Sources & Official References

Other rules in Janesville

All Janesville rules

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