Licensing, union rules and pay references for commercial plumbing in St. Louis, MO.
Plumbing careers in St. Louis · St. Louis plumbing union halls
Apply now — plumbing jobs in St. Louis, MO
Plumbing credentials in MO are generally handled by the city or county rather than one statewide plumbing license. Confirm current requirements with the local building or licensing department for the work location. 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 $43.75–$52.00/hr before fringes. SMART Local 36, SHEET METAL WORKER: $52.00/hr effective 08/01/2025. UA Local 101, PLUMBER/PIPEFITTER (CLINTON (WESTERN 2/3 INCLUDING ALBERS, AVISTON, BARTELS,…: $47.75/hr effective 7/1/25. UA Local 360, Journeyman Plumber/Pipefitter: $43.75/hr effective 7/1/24. UA Local 439, STEAMFITTER (CLINTON (NORTHWESTERN PART INCLUDING ST. ROSE, FROGTOWN, JAMESTOWN AND…: $49.00/hr effective 1/1/26. UA Local 553, PLUMBER/PIPEFITTER (BOND, CALHOUN, GREENE, JERSEY, MACOUPIN (SOUTH OF RT 108), AND…: $51.61/hr effective 1/1/26. UA Local 562, PLUMBER, EXCLUDES HVAC PIPE INSTALLATION (ON ANY WORK UNDER 7.0 MILLION TOTAL OF ALL…: $50.66/hr effective 7/1/25. 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 St. Louis plumbing careers page. A general application does not imply a matching opening.