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Plumbing & Repipe Cost in New Jersey (2026)

Plumbing repipe in New Jersey typically runs $7,400–$18,400 for a whole-house 2-bath PEX repipe, with Type-L copper the dominant retrofit choice and the International Plumbing Code (IPC) as the adopted enforcement basis. Buried service-line trench depth must clear the 30-inch design frost line. Newark, Jersey City, Paterson, and Trenton inherit dense pre-1920 lead-service-line corridors driving the S250 mandate, while the Pine Barrens Cohansey aquifer in southern Burlington-Atlantic-Cumberland counties delivers naturally acidic groundwater (pH 4.5-5.5) that aggressively corrodes copper supply lines and dissolves lead from any remaining solder joints faster than any other regional water chemistry in the Mid-Atlantic.

State New Jersey
Cities Covered 22
Typical whole-house 2-bath PEX repipe $7,400 – $18,400
BLS plumber wage $41.20/hr

New Jersey water-quality & freeze drivers

  • IECC climate zone: 4A-5A — drives freeze-protection scope on supply lines
  • Frost-line trench depth: 30-inch design minimum for buried water service
  • Water hardness profile: Moderate (3.5–7 grains/gallon) — periodic appliance descaling recommended
  • Dominant retrofit supply material: Type-L copper — dominant on retrofits in high-soft-water and pre-1990 housing stock
  • Adopted plumbing code basis: International Plumbing Code (IPC) — ICC model adopted statewide
  • Lead service line risk tier: High — pre-1986 lead service line corridor under active LCRR replacement

New Jersey licensing & permits

  • License status: Statewide license required
  • License board: New Jersey Board of Examiners of Master Plumbers (Master Plumber license under NJSA 45:14C) (official site)
  • Permit: municipal plumbing permit required; LSL replacement on real-estate transactions per S250

How plumbing and repipe costs vary in New Jersey

State-specific code or insurance rule: New Jersey S250 (2021) created a 10-year mandate for every public water system to inventory and replace 100% of lead service lines by 2031 — funded through a combination of utility ratepayer recovery and state low-interest loans, with property-owner refusal subject to court-ordered replacement, the most aggressive forced-replacement provision in any state LSLR program.

Cities in New Jersey

Compare plumbing and repipe pricing for 22 cities across New Jersey.

Atlantic City, NJ

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Bayonne, NJ

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Camden, NJ

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Clifton, NJ

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East Orange, NJ

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Elizabeth, NJ

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Hackensack, NJ

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Hoboken, NJ

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Jersey City, NJ

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Kearny, NJ

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Linden, NJ

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New Brunswick, NJ

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Newark, NJ

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Passaic, NJ

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Paterson, NJ

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Perth Amboy, NJ

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Plainfield, NJ

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Sayreville, NJ

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Trenton, NJ

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Union City, NJ

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Vineland, NJ

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West New York, NJ

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Pricing ranges reflect New Jersey market labor (BLS OEWS plumber mean $41.20/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.