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Plumbing & Repipe Cost in Colorado (2026)

Plumbing repipe in Colorado typically runs $5,900–$14,200 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 36-inch design frost line. Front Range diurnal temperature swings of 50°F+ between January nights and noon stress unprotected supply lines in unconditioned crawlspaces — and high-altitude evaporation rates plus arid dewpoints under 30°F leave winter humidity so low that gypsum-loaded drywall cracks around pipe penetrations, requiring foam-sleeve isolation around every supply stub-out above 6,000 ft.

State Colorado
Cities Covered 21
Typical whole-house 2-bath PEX repipe $5,900 – $14,200
BLS plumber wage $31.34/hr

Colorado water-quality & freeze drivers

  • IECC climate zone: 5B-6B-7 — drives freeze-protection scope on supply lines
  • Frost-line trench depth: 36-inch design minimum for buried water service
  • Water hardness profile: Hard (7–10.5 grains/gallon) — softener cost-effective on tankless and water-heater retrofits
  • 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

Colorado licensing & permits

  • License status: Statewide license required
  • License board: Colorado Department of Regulatory Agencies — State Plumbing Board (Master/Journeyman/Residential tiers) (official site)
  • Permit: municipal plumbing permit required; rural counties route through state inspector

How plumbing and repipe costs vary in Colorado

State-specific code or insurance rule: Colorado SB 13-183 (2013) made Colorado the first Mountain West state to legalize residential graywater reuse, and CDPHE Regulation 86 lets local governments opt in to permit Type-1 systems for irrigation and toilet flushing — Denver, Castle Rock, Pitkin County, and Aurora have all activated graywater programs that are otherwise prohibited statewide without local opt-in.

Cities in Colorado

Compare plumbing and repipe pricing for 21 cities across Colorado.

Arvada, CO

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Aurora, CO

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Boulder, CO

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Broomfield, CO

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Castle Rock, CO

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Centennial, CO

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Colorado Springs, CO

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Commerce City, CO

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Denver, CO

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Fort Collins, CO

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Grand Junction, CO

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Greeley, CO

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Lakewood, CO

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Littleton, CO

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Longmont, CO

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Loveland, CO

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Northglenn, CO

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Parker, CO

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Pueblo, CO

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Thornton, CO

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Westminster, CO

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Pricing ranges reflect Colorado market labor (BLS OEWS plumber mean $31.34/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.