Plumbing & Repipe Cost in Minnesota (2026)

Plumbing repipe in Minnesota typically runs $6,200–$15,400 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. Northern Minnesota frost penetration regularly exceeds 60 inches in International Falls, Bemidji, and Duluth, requiring service lines below 78-inch trench depths in some municipalities — and Iron Range groundwater iron-manganese loads above 2 ppm stain fixtures within months without point-of-entry oxidation-filtration, while metro Twin Cities calcium-carbonate hardness above 18 gpg drives whole-house softener installation on virtually every retrofit.

State Minnesota
Cities Covered 24
Typical whole-house 2-bath PEX repipe $6,200 – $15,400
BLS plumber wage $35.96/hr

Minnesota 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: Moderate — partial pre-1986 service line inventory under utility review

Minnesota licensing & permits

  • License status: Statewide license required
  • License board: Minnesota Department of Labor and Industry — Plumbing Board (Master / Journeyworker / Restricted) (official site)
  • Permit: municipal plumbing permit required; Class V well disclosure on rural transactions

How plumbing and repipe costs vary in Minnesota

State-specific code or insurance rule: Minnesota Rules Chapter 4715 (the Minnesota Plumbing Code) is a state-specific code maintained by the DLI Plumbing Board with deviations from both IPC and UPC — including unique cross-connection control schedules, mandatory air-gap fittings on every ice-maker and dishwasher, and Master Plumber bond requirements at $25,000 per company that exceed every neighboring state.

Cities in Minnesota

Compare plumbing and repipe pricing for 24 cities across Minnesota.

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