Portland · Multnomah County
Whole-House Repiping in Portland, OR
Repiping in Portland usually means replacing galvanized steel supply lines in houses built from the 1900s to the 1930s. The pipe narrows with rust and pressure drops. Portland's water is very soft, so there is no scale problem, but soft water can be corrosive to old plumbing, which is one reason aging metal pipe gets attention here.
- Independent local pros
- Free referral, no obligation
- You approve the price before work starts
What is different about whole-house repiping in Portland?
Because Bull Run water is naturally corrosive, the Water Bureau treats it to reduce the amount of lead and copper it picks up from household plumbing, and it offers free lead-in-water test kits. In an old house with galvanized pipe, old brass or lead-soldered copper, a test is worth doing before and after a repipe.
Most of these houses have a basement, so new lines can run along the basement ceiling and up through the walls with limited openings. Lath-and-plaster and second-floor bathrooms are the harder parts. Ask for the galvanized line from the meter to the house to be included, since it is often the worst restriction.
From the Portland plumbing guide
Galvanized pipe
Original galvanized supply lines narrow with rust, giving low pressure and discolored water.
What to check and ask before work starts in Portland
- Ask whether the service line from the meter is included
- Request a free lead-in-water test from the Water Bureau
- Ask how plaster walls will be opened and repaired
- Verify the plumber's state license and the contractor's Construction Contractors Board license
Licensing and permits for whole-house repiping in Portland
In Oregon, individual plumbers are licensed by the state Building Codes Division, and plumbing contractors must also be licensed with the Construction Contractors Board; both can be looked up online. Plumbing and sewer permits in Portland are issued by the city's permitting bureau.
Keystream Plumbing is a referral service. We do not perform plumbing work or hold a contractor license. The independent plumber you are connected with is responsible for licensing, permits and the work itself.
What the job usually involves
The steps are the same in Portland as anywhere; the local conditions above change how each one is done.
- Inspect and plan
- Permit and protect
- Install new lines
- Patch and inspect
Whole-House Repiping questions from Portland
Does Portland have lead pipes?
Portland has reported no known lead service lines, but lead can come from solder and brass fixtures in home plumbing. The Water Bureau treats the water to limit corrosion and provides free lead test kits.
How do I know if my pipes are galvanized?
Scratch an exposed pipe in the basement: galvanized steel is gray, hard, has threaded joints and attracts a magnet. Copper is reddish and non-magnetic.
Sources
- Water quality, Bull Run and lead testing, Portland Water Bureau
- Contractor license search, Oregon Construction Contractors Board
Local information reviewed October 5, 2026. Rules and programs change; confirm details with the agency before you rely on them.
More plumbing help in Portland
Whole-House Repiping in other cities
Ownership rules, soil, water and pipe materials make this a different job from one city to the next.
Related guides: How to Prevent Frozen Pipes in Winter, Low Water Pressure: Causes and Fixes, How Plumbers Price Jobs: What You're Paying For.
Need whole-house repiping in Portland?
Call (833) 520-4758. Same-day service is often available; call to check timing.