Benton County · Kennewick, WA
Plumbers in Kennewick, WA
Kennewick is in Benton County, Washington. About 103,000 people live in the 3 ZIP codes we cover here, in roughly 40,000 homes, 62% of them single-family detached houses. The biggest share of the housing was built between 1960 and 1979 (33%), and that age decides most of what goes wrong with the plumbing.
- Same-day service when a plumber is available
- 3 ZIP codes covered
ZIP codes we cover in Kennewick
99336, 99337, 99338
Kennewick homes and their plumbing
Here is how Kennewick's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 2%, 1940–1959 13%, 1960–1979 33%, 1980–1999 25%, 2000 or later 28%. Most homes are old enough that original pipe, valves and water heaters are wearing out, but young enough that full repipes are a case-by-case call.
| Year built | Share of homes |
|---|---|
| Before 1940 | 2% |
| 1940–1959 | 13% |
| 1960–1979 | 33% |
| 1980–1999 | 25% |
| 2000 or later | 28% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
- Residents in covered ZIPs
- 103,495
- Housing units
- 39,549
- Single-family detached
- 62%
- Owner-occupied
- 67%
- Heated with utility gas
- 18%
- Heated with electricity
- 80%
What goes wrong in Kennewick homes
1960s and 70s homes reaching end of life
33% of the housing here dates from 1960 to 1979. Original copper supply lines in those homes are now 45 to 65 years old, and cast iron drains of that age scale up inside and crack. Seized shutoff valves, pinhole leaks and recurring main-line clogs are common calls. A camera inspection shows the condition of the sewer line before anyone digs.
Mostly electric homes
80% of occupied homes here heat with electricity, and electric tank water heaters are the norm. Failed elements and thermostats are repairable, but tanks that leak need replacement. Heat pump water heaters are an efficient replacement where there's space and airflow.
Winter freezes
48% 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 calls in Kennewick
- Sewer Camera Inspection
- Water Heater Replacement
- Frozen & Burst Pipe Repair
- Drain Cleaning
- Main Water Line Repair
- Sewer Line Repair
Also available in Kennewick: emergency plumbing and every plumbing service.
Kennewick at a glance
- County
- Benton County
- ZIP codes
- 99336, 99337, 99338
Kennewick plumbing FAQ
How old are the homes in Kennewick?
In the ZIP codes we cover around Kennewick, Census estimates put 15% of homes as built before 1960, 33% from 1960 to 1979, 25% from 1980 to 1999 and 28% in 2000 or later. The largest group is 1960–1979 (33%).
Who licenses plumbers in Kennewick, WA?
The Washington State Department of Labor & Industries (L&I) certifies plumbers and registers contractors.
Are water heaters in Kennewick usually gas or electric?
Census data for the area show 18% of homes heating with utility gas, 80% with electricity. Water heaters often use the same fuel as the home's heat, so electricity is the most common here, but check the label on your tank before you shop for a replacement.
Guides for Kennewick homeowners
Nearby areas
Also covered nearby: Pasco (4 mi), Richland (8 mi), Burbank (9 mi), West Richland (13 mi), Benton City (15 mi), Wallula (15 mi).
Housing, heating and population figures are US Census Bureau American Community Survey 2023 5-year estimates for the ZIP code areas we cover in Kennewick, so they may include neighboring communities that share those ZIP codes.
Need a plumber in Kennewick?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.