Licensing, union rules and pay references for commercial plumbing in Seattle, WA.
Plumbing careers in Seattle · Seattle plumbing union halls
Apply now — plumbing jobs in Seattle, WA
Requirements depend on the jurisdiction, your classification and the scope of the assignment. Check the official Washington Department of Labor and Industries for current license types, exams and renewals, and confirm any city or county requirements. Each posting states its own credential requirements.
Only when the assignment includes that scope. Medical gas and backflow testing credentials are jurisdiction- and assignment-specific; the posting or your recruiter will confirm whether they apply.
Membership, apprenticeship, dues and referral rules are set by each local and its agreements, not by Gulfstream. Contact the hall directly for current rules. Gulfstream recruits for both union and merit-shop contractors and is independent of every union; our recruiting is separate from hall dispatch.
Held official base-rate records range $60.72–$75.21/hr before fringes. SMART Local 66, SHEET METAL WORKER: $69.86/hr effective 06/01/2025. UA Local 26, Pipefitter: $60.72/hr effective 06/01/2025. UA Local 32, Plumbers and pipefitters (Clallam County): $75.21/hr effective 06/01/2025. Held source rates before fringes, not Gulfstream job offers or a single HVAC pay scale. Classifications and effective dates differ. Confirm current rates and project jurisdiction with the hall. Gulfstream is independent of these unions; listings do not establish contractor affiliation.
Apply to a current posting or send your resume from the Seattle plumbing careers page. A general application does not imply a matching opening.