How to get a plumbing contractor license in Maryland
Maryland plumbing contractor licensing covers hours, prerequisites, exam path, fees, and renewal. Confirm current rules on the board source before you apply.
Verified on: 2026-09-14 · Board source
From the board
- License Requirements - Maryland Board of Plumbing - Division of Occupational and Professional Licensing # License Requirements - Plumbing Master Plumber/Gas Fitter - Person must have held a journey license for at least two years; and - Person must have completed 3,750 hours…
- Journey Plumber/Gas Fitter - Person must have held an apprentice license for at least
- Board page: License Requirements - Plumbing - Maryland Department of Labor
Requirements overview
- Maryland sets experience, education, and exam rules for plumbing contractor applicants
- Documented OJT or apprenticeship hours are common for journeyman / technician paths
- Master and contractor tracks usually add experience, exams, and firm paperwork
- Confirm current hour totals, affidavits, and fees on the state board before you apply
Exam
- See the Maryland plumbing exam guide for vendor, scheduling, and prep
- LicenseFlo helps with paperwork and reminders — we do not sit the exam
Renewals
- Most credentials renew on a fixed cycle with mandatory CE or training
- Roster watch → intake → assemble → sign → submit
Related: Exam · Renewal and CE
Have LicenseFlo do it
From $79 per event. Text once; we collect photos, assemble the packet, and send a one-tap signature.