Oregon · 9 covered places · 20 ZIP codes
Plumbers in Washington County, OR
We cover 9 cities and towns in Washington County, Oregon, across 20 ZIP codes, including Beaverton, Hillsboro, Forest Grove. About 425,000 people live in those ZIP codes. Most homes date from 1980 to 1999, old enough that original water heaters, valves and drains are wearing out.
| Year built | Share of homes |
|---|---|
| Before 1940 | 3% |
| 1940–1959 | 6% |
| 1960–1979 | 26% |
| 1980–1999 | 35% |
| 2000 or later | 30% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Beaverton | 204,236 | 7% |
| Hillsboro | 102,973 | 10% |
| Forest Grove | 29,598 | 24% |
| Tualatin | 28,620 | 3% |
| Sherwood | 27,999 | 7% |
| Cornelius | 15,621 | 12% |
| North Plains | 5,662 | 12% |
| Gaston | 5,154 | 38% |
| Banks | 5,009 | 17% |
What goes wrong in Washington County homes
1980s and 90s construction and polybutylene
35% of homes were built between 1980 and 1999. Polybutylene supply pipe was installed widely in US homes from about 1978 to 1995, so houses from these years are worth checking for gray plastic pipe stamped PB2110, usually visible at the water heater or under sinks. Insurers and buyers often ask about it. See polybutylene replacement.
Common plumbing work in Washington County
Other covered towns in Washington County
- Banks (1 ZIP)
- Beaverton (10 ZIPs)
- Cornelius (1 ZIP)
- Forest Grove (1 ZIP)
- Gaston (1 ZIP)
- Hillsboro (3 ZIPs)
- North Plains (1 ZIP)
- Sherwood (1 ZIP)
- Tualatin (1 ZIP)
Washington County plumbing FAQ
Which towns in Washington County do you cover?
9 places: Banks, Beaverton, Cornelius, Forest Grove, Gaston, Hillsboro, North Plains, Sherwood, Tualatin. Enter your ZIP code to confirm coverage for your street.
How old are homes in Washington County?
Across the covered ZIP codes, Census estimates put 9% of homes as built before 1960, 26% from 1960 to 1979, 35% from 1980 to 1999 and 30% in 2000 or later.
Who licenses plumbers in Washington County, OR?
Oregon's Building Codes Division licenses plumbers, and contractors must also hold a Construction Contractors Board license.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Washington County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Washington County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.