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Plumbing & Repipe Cost in Wisconsin (2026)

Plumbing repipe in Wisconsin typically runs $5,800–$14,600 for a whole-house 2-bath PEX repipe, with PEX-A or PEX-B cross-linked polyethylene the dominant retrofit choice and a state-specific plumbing code as the adopted enforcement basis. Buried service-line trench depth must clear the 60-inch design frost line. Milwaukee's pre-1962 lead service line corridor served roughly 70,000 connections under accelerated MWW replacement, and Madison and Green Bay both inherit dense pre-1920 LSL clusters as well — DSPS prohibits partial replacement statewide as a public-health matter, and 60-inch frost-line depth across northern Wisconsin from Eau Claire through Marinette forces below-basement service-line trenching on every winter-permitted job.

State Wisconsin
Cities Covered 20
Typical whole-house 2-bath PEX repipe $5,800 – $14,600
BLS plumber wage $35.75/hr

Wisconsin water-quality & freeze drivers

  • IECC climate zone: 6A-7 — drives freeze-protection scope on supply lines
  • Frost-line trench depth: 60-inch design minimum for buried water service
  • Water hardness profile: Very hard (10.5+ grains/gallon) — whole-house softener standard on most repipes
  • Dominant retrofit supply material: PEX-A or PEX-B cross-linked polyethylene — dominant on whole-house repipes since 2005
  • Adopted plumbing code basis: State-specific plumbing code (deviates from both UPC and IPC)
  • Lead service line risk tier: High — pre-1986 lead service line corridor under active LCRR replacement

Wisconsin licensing & permits

  • License status: Statewide license required
  • License board: Wisconsin Department of Safety and Professional Services — Plumbing Section (Master Plumber / Journeyman Plumber / Master Plumber-Restricted Service) (official site)
  • Permit: DSPS plumbing permit through municipal or rural inspector; private sewage through DSPS POWTS

How plumbing and repipe costs vary in Wisconsin

State-specific code or insurance rule: Wisconsin operates under SPS 382 through 384 (the Wisconsin Plumbing Code) — a state-specific code maintained by DSPS rather than IPC or UPC adoption — and Act 137 of 2017 created a unique Master Plumber-Restricted Service credential limited to fixture-replacement and water-heater work, plus the only state-administered Private Onsite Wastewater Treatment System (POWTS) regulatory program operating directly out of the same plumbing-licensing agency.

Cities in Wisconsin

Compare plumbing and repipe pricing for 20 cities across Wisconsin.

Appleton, WI

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Beloit, WI

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Brookfield, WI

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Eau Claire, WI

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Fond Du Lac, WI

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Green Bay, WI

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Greenfield, WI

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Janesville, WI

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Kenosha, WI

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La Crosse, WI

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Madison, WI

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Milwaukee, WI

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New Berlin, WI

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Oshkosh, WI

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Racine, WI

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Sheboygan, WI

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Waukesha, WI

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Wausau, WI

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Wauwatosa, WI

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West Allis, WI

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Pricing ranges reflect Wisconsin market labor (BLS OEWS plumber mean $35.75/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.