Washington · 6 covered places · 7 ZIP codes
Plumbers in Island County, WA
We cover 6 cities and towns in Island County, Washington, across 7 ZIP codes, including Oak Harbor, Camano Island, Coupeville. About 85,000 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 | 9% |
| 1960–1979 | 23% |
| 1980–1999 | 39% |
| 2000 or later | 26% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Oak Harbor | 42,516 | 11% |
| Camano Island | 17,535 | 13% |
| Coupeville | 7,492 | 12% |
| Clinton | 7,052 | 19% |
| Langley | 5,480 | 11% |
| Freeland | 4,531 | 10% |
What goes wrong in Island County homes
1980s and 90s construction and polybutylene
39% 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.
Propane service
19% of homes here use bottled or tank propane for heat, typical of areas beyond the gas mains. Propane water heaters, ranges and generators need correctly sized lines and fittings rated for LP. See gas appliance hookups.
Winter freezes
35% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a cold Washington winter those are the lines that freeze and split. See frozen and burst pipe repair.
Common plumbing work in Island County
Other covered towns in Island County
- Camano Island (1 ZIP)
- Clinton (1 ZIP)
- Coupeville (1 ZIP)
- Freeland (1 ZIP)
- Langley (1 ZIP)
- Oak Harbor (2 ZIPs)
Island County plumbing FAQ
Which towns in Island County do you cover?
6 places: Camano Island, Clinton, Coupeville, Freeland, Langley, Oak Harbor. Enter your ZIP code to confirm coverage for your street.
How old are homes in Island County?
Across the covered ZIP codes, Census estimates put 12% of homes as built before 1960, 23% from 1960 to 1979, 39% from 1980 to 1999 and 26% in 2000 or later.
Who licenses plumbers in Island County, WA?
The Washington State Department of Labor & Industries (L&I) certifies plumbers and registers contractors.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Island County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Island County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.