Plumbing service in Washington
Call NowWashington plumbing covers rainy Puget Sound winters in Seattle and Tacoma, colder, drier conditions in Spokane, older craftsman homes and rural wells.
Washington weather and your plumbing
Western Washington has mild, wet winters with occasional snow and ice and dry summers. Eastern Washington, including Spokane, has colder winters with hard freezes and hot, dry summers.
Season by season in Washington
- Rainy season
- Long wet months saturate soil, flood crawl spaces and expose aging sewer laterals in Seattle and Tacoma.
- Cold snaps
- Occasional arctic air west of the Cascades and regular hard freezes in Spokane split pipes and outdoor spigots.
Problems the Washington climate causes
Wet crawl spaces
Cause: Months of steady rain.
Result: Standing water corrodes pipes and damages insulation.
Do: Check crawl spaces after heavy rain and consider a crawl-space sump.
Frozen pipes in Spokane
Cause: Hard winter freezes.
Result: Exposed pipes split.
Do: Insulate pipes and disconnect hoses before winter.
Housing in Washington
Seattle and Tacoma have many craftsman and pre-war homes with basements or crawl spaces, cast-iron drains and galvanized supply. Suburbs are newer, and rural Washington relies on wells and septic.
Where calls are covered in Washington
- Covered ZIP codes
- 441
- Cities and towns with coverage
- 300
Most covered ZIP codes
- Seattle · 38 ZIPs
- Tacoma · 21 ZIPs
- Spokane · 16 ZIPs
- Vancouver · 11 ZIPs
- Olympia · 7 ZIPs
- Bellevue · 5 ZIPs
- Renton · 5 ZIPs
- Everett · 5 ZIPs
Check whether your exact Washington ZIP code is covered (coverage changes over time)
Washington questions
How do I check a Washington plumbing contractor's license?
Use the contractor lookup on the L&I website. Plumbing contractors must be licensed with L&I and use certified plumbers.
Why does my Seattle sewer line back up in winter?
Rain and roots stress older clay sewer laterals. A camera inspection shows whether the line is cracked or blocked.
How do I check a plumber's license in Washington?
Washington's Department of Labor and Industries (L&I) certifies plumbers and, since July 2021, licenses plumbing contractors. A business must hold an L&I plumbing contractor license before it advertises, bids or performs plumbing work, and it may only use certified plumbers.