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Plumbing & Repipe Cost in Alabama (2026)

Plumbing repipe in Alabama typically runs $4,400–$11,200 for a whole-house 2-bath PEX repipe, with PEX-A or PEX-B cross-linked polyethylene the dominant retrofit choice and the International Plumbing Code (IPC) as the adopted enforcement basis. Buried service-line trench depth must clear the 8-inch design frost line. Mobile-Baldwin coastal slab-on-grade homes see chloride-driven copper pinhole leaks within 8-12 years of installation as humid soil and shallow water tables corrode embedded supply lines, pushing whole-house PEX repipes years earlier than inland Alabama or the Tennessee Valley.

State Alabama
Cities Covered 12
Typical whole-house 2-bath PEX repipe $4,400 – $11,200
BLS plumber wage $25.85/hr

Alabama water-quality & freeze drivers

  • IECC climate zone: 2A-3A — drives freeze-protection scope on supply lines
  • Frost-line trench depth: 8-inch design minimum for buried water service
  • Water hardness profile: Moderate (3.5–7 grains/gallon) — periodic appliance descaling recommended
  • Dominant retrofit supply material: PEX-A or PEX-B cross-linked polyethylene — dominant on whole-house repipes since 2005
  • Adopted plumbing code basis: International Plumbing Code (IPC) — ICC model adopted statewide
  • Lead service line risk tier: Moderate — partial pre-1986 service line inventory under utility review

Alabama licensing & permits

  • License status: Statewide license required
  • License board: Alabama Plumbers and Gas Fitters Examining Board (official site)
  • Permit: city plumbing permit required for repipe and water-heater swap

How plumbing and repipe costs vary in Alabama

State-specific code or insurance rule: Alabama Code §34-37-1 splits plumbers and gas-fitters into two separately credentialed trades — a Master Plumber license does not authorize gas-line work, and the Plumbers and Gas Fitters Board issues each as a distinct exam under §34-37-7, with disciplinary jurisdiction held entirely by the board rather than the Home Builders Licensure Board.

Cities in Alabama

Compare plumbing and repipe pricing for 12 cities across Alabama.

Auburn, AL

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Birmingham, AL

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Decatur, AL

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Dothan, AL

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Florence, AL

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Hoover, AL

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Huntsville, AL

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Madison, AL

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Mobile, AL

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Montgomery, AL

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Phenix City, AL

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Tuscaloosa, AL

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Pricing ranges reflect Alabama market labor (BLS OEWS plumber mean $25.85/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.