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OregonPLUMBING DISPATCH
West of the Cascades · 42 communities

Plumbers Across Portland Metro

The densest housing stock in Oregon and some of the oldest. Galvanized supply, cast iron stacks, clay laterals under 80-year-old street trees, and eight months of rain pushing groundwater at every basement in the region.

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From Forest Grove to Sandy, Wilsonville to Corbett. Dispatch answers 24/7 and can guide you to your shutoff before anyone arrives.

Plumber in blue uniform repairing a pipe with a wrench
Same-day response across the metro
Portland, Washington and Clackamas counties
Upfront pricing before work begins
Workmanship guarantee on completed work

What plumbing is like here

Portland Metro is a wet-side region and the plumbing reflects it. The problems that fill our schedule here are water arriving from outside and pipe that has been in the ground a very long time.

From November through March, sustained rain raises the water table across the whole basin. That single fact drives a large share of the region's plumbing work: basement seepage that gets mistaken for a burst pipe, crawl spaces that stay saturated for months, sump pumps running continuously rather than occasionally, and ground soft enough that sewer laterals settle into low spots and start collecting waste instead of moving it.

The second factor is age. Large parts of inner Portland, Oregon City, Milwaukie-adjacent Clackamas and the older parts of Beaverton and Hillsboro were built when galvanized steel supply and cast iron drainage were standard, and clay was the material for everything underground. All three have finite lives, and in this region a great many of them have reached the end of it at roughly the same time.

The third is trees. The metro's mature canopy is one of its best features and it is directly at odds with 1920s clay sewer pipe. Roots find joints, enter, and thrive in a nutrient-rich line. In wet soil they grow year round.

Housing stock, by era

Pre-1950, inner Portland, Oregon City, older Gresham and Forest Grove. Galvanized supply that is rusting closed from the inside, giving pressure loss and rust-coloured first-draw water. Cast iron drainage that corrodes from the inside out and eventually goes. Clay or, worse, Orangeburg laterals. Basements and shallow crawl spaces. Original main water lines, often galvanized, and frequently lead solder at copper joints in houses altered before 1986.

1950s to 1970s, much of Beaverton, Milwaukie, Aloha, Gladstone. Copper supply, generally serviceable but with pinhole risk where water chemistry or high pressure is involved. Cast iron drainage still, and clay or early plastic laterals. Crawl spaces rather than basements, often with poor vapour barriers.

1980s to 2000s, Hillsboro, Tualatin, Wilsonville, Happy Valley, Sherwood. Copper or early plastic supply, ABS drainage, and PVC laterals that are usually sound. The problems here are appliance-age failures, water heaters, valves, supply lines, rather than pipe.

Post-2000, the newer edges. PEX supply, PVC drainage. Failures are almost entirely fittings, fixtures and appliances, plus the occasional pressure regulator nobody has ever tested.

Knowing which era a house belongs to tells us most of what to expect before we arrive, and it is why we ask when the house was built when you call.

Ask us the build year when you call. It tells us most of it.

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Communities

Where we cover in Portland Metro

Forty-one communities across Multnomah, Washington and Clackamas counties, plus five Portland district pages. Every city page lists the neighborhoods it covers.

Every city page lists the neighborhoods and nearby communities it covers.

Find Your Plumber

Roots, laterals and street trees

If there is one characteristic Portland Metro plumbing problem, this is it.

A clay lateral is built from short lengths with mortared joints, and after eighty years those joints have moved. Any root within reach finds the moisture and the nutrients, enters through the joint, and forms a mass inside the pipe. Paper and solids catch on it, and the line closes gradually until one day it does not clear.

Cutting roots out restores flow and does not solve anything, they regrow, and in this climate they regrow year round. What matters is knowing the actual condition of the line, which means a camera. A camera tells you whether you have a pipe worth keeping that needs periodic maintenance, a pipe with a belly that will keep collecting regardless, or a pipe that is broken and needs replacing. Those are three different budgets, and guessing between them is expensive.

The other regional specific: Orangeburg pipe, a bituminous fibre material used in the region from the 1940s to the early 1970s. It deforms and delaminates with age, and it cannot be repaired, only replaced. If a camera finds Orangeburg, the conversation is about replacement timing, not repair.

For anyone buying an older metro house, a pre-purchase sewer scope is the single most valuable inspection add-on available in this region. It costs a small fraction of what a lateral replacement does.

Water supply and quality

Portland's Bull Run supply is among the softest municipal water in the United States, typically under 2 grains per gallon. Practically, that means scale is not a problem here, water heaters are not fighting mineral deposits, and you almost certainly do not need a water softener. If someone has quoted you one for a Portland address, ask them to show you a hardness test on your own tap.

What is worth treating on metro supply is modest: chlorine or chloramine taste, addressed with carbon at the kitchen tap; sediment after main work in the street; and lead where a pre-1986 house has lead solder or old brass fittings, which is a plumbing question as much as a filtration one.

Surrounding communities on their own systems vary, some of the outer Washington and Clackamas county water districts draw from wells and are harder than the city. And plenty of properties in Corbett, Colton, Estacada, Boring, Damascus and the rural edges are on private wells, which is a different situation entirely and needs testing.

One thing worth checking on any metro house: static water pressure. Municipal pressure in parts of the region runs well above the 80 psi limit, and a failed or absent pressure reducing valve quietly shortens the life of every fixture, appliance and supply line in the house. A gauge on a hose bib settles it in two minutes.

Winter in the metro

Portland Metro gets a handful of hard freezes a year rather than sustained cold, and that shapes how freeze damage happens here.

The vulnerable points are the ones with no thermal protection at all: outdoor hose bibs, pipework in unheated garages and vented crawl spaces, lines running through exterior wall cavities on a north face, and anything in an unheated shop or ADU. A valley cold snap of two or three nights is enough to split an unprotected hose bib, and the leak usually appears months later when someone turns the tap on in spring.

The east metro and the Mount Hood corridor are a different matter. Sandy, Boring, Eagle Creek, Brightwood, Rhododendron, Welches and Government Camp get genuine mountain winters, and Government Camp in particular should be treated as an east-side property for freeze planning. The Gorge wind that funnels through Corbett and Bridal Veil also strips heat far faster than air temperature alone suggests.

Cheap prevention, in order of value: disconnect every hose in autumn, fit insulated covers on non-frost-free bibs, insulate exposed crawl space runs, and know where your main shutoff is and whether it actually closes.

Permits and jurisdictions

The metro spans three counties and a large number of incorporated cities, each with its own building department, and permit requirements for plumbing work vary between them. Sewer lateral work in particular differs: some jurisdictions require a licensed sewer contractor and specific permitting for work in the right of way, and the boundary between the homeowner's responsibility and the city's varies by city.

The independent contractors in our network handle the permitting for the work they do and know which jurisdiction they are in. It is worth confirming with anyone you hire, unpermitted work on a lateral or a gas line becomes a problem at resale.

Buying an older metro house? Scope the lateral before closing.

Book a Sewer Scope
What we get called for here

The work Portland Metro generates most

Other regions

We cover all seven Oregon regions, 155 communities across seven regions.

Common questions

Plumbing in Portland Metro, answered

Almost certainly not. Bull Run water is among the softest municipal supply in the country, typically under 2 grains per gallon, so scale is not a problem here. Outlying water districts and private wells in the rural edges are a different matter and can be tested.

A combination of clay pipe with mortared joints, a mature tree canopy, and soft wet ground. Roots enter the joints and grow year round in this climate, and saturated soil lets lines settle into bellies that collect waste. A camera inspection tells you which of those you have.

A bituminous fibre sewer pipe used around the metro from the 1940s to the early 1970s. It deforms and delaminates with age and cannot be repaired, only replaced. A camera inspection identifies it immediately, which is why it matters on any house of that era.

Yes. Parts of the metro run well above the 80 psi code limit, and high pressure shortens the life of fixtures, appliances and supply lines. A gauge on an outside tap answers it in two minutes, and a failed or missing pressure reducing valve is a straightforward fix.

Milder in the city, a handful of hard nights rather than sustained weeks, so damage concentrates on genuinely unprotected points like hose bibs, unheated garages and vented crawl spaces. The Mount Hood corridor is a different story: Government Camp, Welches and Brightwood should be treated as cold-climate properties.

All 42 communities listed on this page, from Forest Grove and Banks in the west to Sandy and Government Camp in the east, plus five Portland district pages covering the city neighborhoods. One number reaches dispatch for all of it.

Bull Run is soft water. You do not need a softener here.

Ask an Honest Question

One number for the whole metro

Dispatch answers around the clock and can talk you to your shutoff before a plumber is on the road. Tell us your town and the build year of the house and we will send someone who has seen your problem before.

42 communities · 24/7 dispatch

Call 1-866-203-6890