King County · Seattle
Pioneer Plumbing & Sewer
Based in Seattle, King County, Pioneer Plumbing & Sewer lists emergency calls and drain work.
- Seattle
- emergency
- drain
- County
- King
- Phone
- (206) 789-8029
- Website
- pioneerplumbing.biz
- Address
- 3425 16th Ave W, Seattle, WA 98119
- Listed for
- emergency calls and drain work
License check
- WA plumbing contractor license · L&I #PIONEPH797NE, active, expires 2027-08-09. Bond and liability insurance on file. L&I Verify
We matched this business by phone number and business name in Washington L&I contractor license data on data.wa.gov (the same records as L&I Verify) on October 18, 2026. A match is not an endorsement. Look the number up yourself before work starts.
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Before you call Pioneer Plumbing & Sewer, see how to hire emergency plumbers.