Moving to Pennsylvania as a master plumber: every state's rule
Pennsylvania does not issue a statewide master plumber license, so there is no reciprocity to speak of. Here is what that means in practice.
Pennsylvania master plumber · “Master Plumber (city-issued; no state licence)”
Licensed by cities and counties
Pennsylvania issues no statewide master plumber or plumbing-contractor licence; none of the Department of State's 29 boards covers the trade, so the master-level credential exists only in cities that have chosen to license it. Allentown posts a 2026 Master Plumber Exam Application and requires a separate business licence to contract. Harrisburg posts a plumbing licence application whose master-versus-journeyman split was not verified. Pittsburgh's plumbing trade-licence page 404'd. There is no state-level recognition of an out-of-state master plumber licence and no municipal programme verified here that waives the plumbing trade exam. An arriving master should expect to apply city by city, document local experience thresholds, and sit each city's exam (ICC or city-written) unless that city later publishes an exam-waiver rule.
How local licensing works in Pennsylvania
How local licensing works. With no state plumbing board, each Pennsylvania city that licenses master plumbers does so under its own ordinance. The journeyman card, where it exists, does not authorise pulling permits or running a shop; the master (or master-contractor) licence does. A master licence is valid only in the issuing city. The journeyman page states that a journeyman works 'under a licensed master plumber' and may not operate a business, which implies the master licence is the contracting credential. Other PLI trade licences are issued to individuals, expire 365 days from issue, and (for electrical and mechanical) accept ICC master exams for any code year plus a stated experience total; whether plumbing follows that pattern is unverified. 2025 plumbing licence fee unknown.
Allentown. 2026 Master Plumber Exam Application is posted under Professional Trades Licensing. Contracting requires the trades licence and a city business licence. Reciprocity not mentioned on the landing page. Electrical Option B on that same form (eight years in lieu of exam) must not be assumed to apply to plumbing.
Inbound master. No Pennsylvania state licence and no verified exam-waiver reciprocity. Plan on a new application in each city where permits will be pulled. Philadelphia is the most fully documented shop: obtain the Master Plumber's License after (typically) holding or qualifying beyond the journeyman ICC path; confirm current master fees and exam on the master service page before applying. Allentown requires its master plumber exam application plus a business licence. Scranton uses the 2021 master contractor packet. Statewide reciprocity: none.