Repiping & Water Line Repair in Portland, OR
Replace deteriorating galvanized steel or leaky copper with clean, non-corrosive PEX-A or type L copper piping, restoring crisp water pressure and clean drinking water.
Answer-First Overview: Whole-home repiping and water line repair in Portland, OR eliminates discolored water, weak shower pressure, and persistent pinhole leaks caused by aging galvanized steel or failing copper. United Plumbing PDX replaces corroded pipes with commercial-grade Uponor PEX-A or Type L copper, installing individual quarter-turn fixture shutoffs and whole-home pressure regulation with minimal drywall disruption.
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Direct dispatch response in 30–60 minutes. Upfront pricing before any work starts.
A vast portion of Portland's character-rich housing stock was built between 1900 and 1970, when galvanized steel was the standard material for potable water lines. Internally, galvanized pipes rust from the inside out; over decades, layers of iron oxide mineral scale build up until a 3/4-inch pipe has an opening no wider than a pencil.
If you are tired of weak shower trickles, rust-stained laundry, or perpetual fear of another pinhole leak bursting inside your walls, United Plumbing PDX provides expert whole-home repiping and main water service replacement. We upgrade your plumbing to high-performance Uponor PEX-A or rigid Type L copper, backed by written lifetime material warranties.
What's Included in Our Repiping & Water Line Repair
Every service call from United Plumbing PDX delivers comprehensive, code-compliant solutions backed by Oregon master plumbing standards:
Common Signs You Need Repiping & Water Line Repair
If you are noticing any of the following warning signs, early intervention prevents costly structural water damage:
- Rusty, brown, or yellowish tinted water running from faucets after sitting overnight
- Plummeting water pressure when someone runs the dishwasher or flushes a toilet
- Recurring pinhole leaks developing across copper supply lines in crawlspaces or basements
- Flaking silver-gray galvanized steel piping visible in basement joists or utility rooms
- High water bills signaling an underground leak along your main exterior water service line
Our 4-Step Diagnostic & Repair Process
System Material Survey & Ultrasonic Testing
We inspect your home's entire potable water distribution network, identifying galvanized lines, polybutylene, failing brass fittings, and pressure anomalies.
Engineered PEX-A or Copper Repipe Routing
We map minimally invasive pipe runs through crawlspaces, utility chases, and baseboard cavities to minimize dry-wall cutting and structural impact.
Clean Installation with Individual Fixture Shutoffs
Our technicians install commercial-grade Uponor PEX-A expansion piping or lead-free Type L copper, complete with premium quarter-turn brass fixture valves.
Pressure Testing, City Inspection & Wall Restoration
We hold high-pressure pneumatic tests for city plumbing inspectors, thoroughly flush all lines, and patch opened drywall cleanly.
Why Portland Relies on United Plumbing PDX for Repiping & Water Line Repair
We combine rapid local dispatch with transparent, upfront quotes and 14+ years of proven Pacific Northwest plumbing heritage.
OR CCB #234891 Licensed & Bonded
All technicians hold active Oregon Building Codes Division plumbing specialty licenses (#PB-9421) and adhere to 2023 OPSC codes.
Upfront Flat-Rate Written Quotes
You review and approve an itemized, transparent quote before any physical work begins—never surprise hourly invoices.
30–60 Minute Metro Response
Staged service vans dispatched from our 621 SW 5th Ave hub reach Multnomah, Washington, and Clackamas counties quickly.
184 Verified 4.9★ Reviews
100% satisfaction guarantee on all diagnostic, repair, and replacement workmanship across Portland.
The Danger of Galvanized Piping in Portland Homes
As galvanized steel ages past 50 years, the internal zinc coating wears away completely. The exposed iron reacts with oxygen in the water, forming jagged internal corrosion nodules that capture sediment and heavy metals—including trace lead from vintage solder joints. Beyond delivering discolored water, corroded pipe walls become paper-thin and rupture under unexpected municipal pressure spikes.
Uponor PEX-A: Modern Pacific Northwest Plumbing Standard
We recommend Uponor PEX-A cross-linked polyethylene for whole-home repiping in Oregon. PEX-A expands up to 300% without rupturing, making it exceptionally resistant to winter freeze-thaw damage. Its silky-smooth interior prevents limescale buildup, dampens water hammer noise, and can be snaked through wall cavities with minimal drywall cuts.
Transparent Pricing & Cost Factors
Repipe investment depends on home square footage, number of bathrooms, foundation style (accessible crawlspace/basement vs. concrete slab), and pipe material selected (PEX-A vs. copper).
- Home size and fixture count (bathrooms, kitchen, laundry, outdoor frost-free bibs)
- Accessibility (open joist basement vs. tight crawlspace or two-story finished drywall)
- Main water service line trenching distance from city meter at street to house foundation
- Drywall and texture patch/repair requirements
Providing Repiping & Water Line Repair Throughout Portland & Nearby Cities
From our primary dispatch facility at 621 SW 5th Ave in Downtown Portland, our licensed mobile technicians provide full-service repiping & water line repair across all of Multnomah County, Gresham, Beaverton, Tigard, Lake Oswego, Milwaukie, and Hillsboro. Whether your property is an Eastside Craftsman in Sellwood or a modern build in Washington County, our vans arrive fully equipped for rapid diagnostics and immediate repairs.
Frequently Asked Questions
How long will my water be shut off during a whole-home repipe?
Our crew stages new pipe alongside your old system while it remains pressurized. Water is typically only shut down for 4 to 6 hours on the final connection day, meaning you have hot and cold water every evening of the project.
Is PEX water pipe completely safe for drinking water?
Yes. Uponor PEX-A is certified to NSF/ANSI Standards 14 and 61 for potable drinking water, does not leach harmful chemicals, and resists chemical corrosion better than metal piping.
Does repiping my home increase its resale value in Portland?
Significantly. Older Portland homes with original galvanized or polybutylene plumbing frequently face buyer credit contingencies and insurance underwriting denials. A certified repipe eliminates insurance hurdles and provides strong appraisal value.
How do I know if my main water line from the meter is leaking?
Key signs include an unexplained surge in your Portland Water Bureau utility bill, warm or soggy spots on your front lawn when it hasn't rained, or a water meter leak indicator dial spinning continuously when all indoor plumbing fixtures are turned off.
Do you install pressure reducing valves (PRVs) during a repipe?
Yes. Municipal water pressures across Portland's varied elevation zones frequently exceed 90 to 110 PSI, which voids appliance warranties and strains pipe joints. We calibrate and install code-compliant brass PRVs set to optimal household pressure (50 to 65 PSI).
Need This Service Today?
Our licensed master plumbers are on the road in fully stocked vans ready to tackle your plumbing issue immediately.
(831) 290-4327OR CCB #234891 · No overtime fees
Related Plumbing Services
Top Service Areas
We provide Repiping & Water Line Repair across Multnomah, Washington, and Clackamas counties:
- Multnomah County, OR (10–25 minutes county-wide from 621 SW 5th Ave hub)
- Gresham, OR (25–35 minutes via I-84 E or SE Powell Blvd)
- Beaverton, OR (15–25 minutes via US-26 W or Beaverton-Hillsdale Hwy)
- Tigard, OR (20–30 minutes via I-5 S or OR-99W)
- Hillsboro, OR (25–35 minutes via US-26 W)
Helpful Guides & Articles
Get Professional Repiping & Water Line Repair in Portland Today
Call (831) 290-4327 for rapid same-day dispatch or request a written flat-rate estimate online.