Home › Plumbing cities › Oregon

Plumbing & Repipe Cost in Oregon (2026)

Plumbing repipe in Oregon typically runs $6,400–$15,800 for a whole-house 2-bath PEX repipe, with PEX-A or PEX-B cross-linked polyethylene the dominant retrofit choice and the Uniform Plumbing Code (UPC) as the adopted enforcement basis. Buried service-line trench depth must clear the 18-inch design frost line. Oregon sits within the Cascadia Subduction Zone where a magnitude 9 megathrust event is forecast within the next 50 years with 30% probability, driving Portland, Salem, and Eugene to require seismic gas-shutoff valves, double-strap water-heater anchorage, and PEX-A retrofits over rigid copper in liquefaction-prone Willamette Valley alluvium — and coastal storm-driven sewer surcharge has driven Tillamook and Lincoln counties to adopt residential backwater-valve mandates.

State Oregon
Cities Covered 14
Typical whole-house 2-bath PEX repipe $6,400 – $15,800
BLS plumber wage $38.45/hr

Oregon water-quality & freeze drivers

  • IECC climate zone: 4C-5B-6B — drives freeze-protection scope on supply lines
  • Frost-line trench depth: 18-inch design minimum for buried water service
  • Water hardness profile: Soft (under 3.5 grains/gallon) — minimal scaling, no softener required
  • Dominant retrofit supply material: PEX-A or PEX-B cross-linked polyethylene — dominant on whole-house repipes since 2005
  • Adopted plumbing code basis: Uniform Plumbing Code (UPC) — IAPMO model adopted statewide
  • Lead service line risk tier: Moderate — partial pre-1986 service line inventory under utility review

Oregon licensing & permits

  • License status: Statewide license required
  • License board: Oregon Building Codes Division — Plumbing Program (PJ Journeyman / PWS / PB plumbing-business license) (official site)
  • Permit: BCD plumbing permit required statewide; on-site sewage through DEQ

How plumbing and repipe costs vary in Oregon

State-specific code or insurance rule: Oregon ORS 693 places plumbing licensure under the Building Codes Division with separately credentialed Journeyman Plumber (PJ), Plumbing Business (PB), and Water-Treatment Installer (PWS) licenses — a finer scope-tier structure than most Pacific states — and Oregon was the first state to allow legalized residential greywater under DEQ Tier 1, 2, and 3 reuse permits dating to 2011 well before California or Texas.

Cities in Oregon

Compare plumbing and repipe pricing for 14 cities across Oregon.

Albany, OR

Compare local plumbing and repipe pricing in Albany.

Beaverton, OR

Compare local plumbing and repipe pricing in Beaverton.

Bend, OR

Compare local plumbing and repipe pricing in Bend.

Corvallis, OR

Compare local plumbing and repipe pricing in Corvallis.

Eugene, OR

Compare local plumbing and repipe pricing in Eugene.

Gresham, OR

Compare local plumbing and repipe pricing in Gresham.

Hillsboro, OR

Compare local plumbing and repipe pricing in Hillsboro.

Keizer, OR

Compare local plumbing and repipe pricing in Keizer.

Lake Oswego, OR

Compare local plumbing and repipe pricing in Lake Oswego.

Medford, OR

Compare local plumbing and repipe pricing in Medford.

Portland, OR

Compare local plumbing and repipe pricing in Portland.

Salem, OR

Compare local plumbing and repipe pricing in Salem.

Springfield, OR

Compare local plumbing and repipe pricing in Springfield.

Tigard, OR

Compare local plumbing and repipe pricing in Tigard.

Got a quote? Check if it's fair.

Upload your estimate for an instant price and scope review tuned to Oregon labor and material rates.

Analyze your quote

More state guides

Pricing ranges reflect Oregon market labor (BLS OEWS plumber mean $38.45/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.