How to get a plumbing license in Maryland
Edited by John Voll. Last verified .
Maryland State Board of Plumbing licenses plumbing contractors in Maryland.
Who licenses plumbing work in Maryland
| Credential | State license |
|---|---|
| Board | Maryland State Board of Plumbing official statement |
| Official lookup | Search plumbing licenses |
| License types | Master Plumber/Gas Fitter, Journey Plumber/Gas Fitter, Apprentice Plumber/Gas Fitter, Master Natural Gas Fitter, Journey Natural Gas Fitter, Apprentice Natural Gas Fitter, Propane Gas Fitter (Certification), Plumbing Inspector (Certification) |
How to get licensed
- Apply to Maryland State Board of Plumbing for a credential such as Master Plumber/Gas Fitter, Journey Plumber/Gas Fitter or Apprentice Plumber/Gas Fitter.
- Yes: a PSI exam for master and journey plumber and natural gas fitter licenses. source
- Experience: master plumber/gas fitter: at least two years as a journey licensee and 3,750 hours of training under a master plumber (journey: four years as an apprentice and 7,500 hours). source
- Carry at least $400,000 per occurrence: general liability of at least $300,000 and property damage of at least $100,000; umbrella policies do not count. source
- Pay the original master plumber/gas fitter license fee: $87.50. source
- License renews for a 2 year term, expiring May 1 of an odd numbered year. source
Plumbing requirements in Maryland
| Exam | Yes: a PSI exam for master and journey plumber and natural gas fitter license. source |
|---|---|
| Experience | Master plumber/gas fitter: at least two years as a journey licensee and 3,750 hours of training under a master plumber (journey: four years as an apprentice and 7,500 hours). source |
| Bond | Not found on an official source. |
| Insurance | At least $400,000 per occurrence: general liability of at least $300,000 and property damage of at least $100,000; umbrella policies do not count. source |
| Renewal | License renews for a 2 year term, expiring May 1 of an odd numbered year. source |
| Reciprocity | Reciprocal master or journey licenses for plumbers licensed by exam in Baltimore County, WSSC or DC; master plumber/gas fitter only for Delaware. source |
| Fees |
Hiring a plumbing contractor?
See every official lookup in Maryland, which board covers which trade, and what to check before you hire.
Questions
- Do you need a plumbing license in Maryland?
- Maryland State Board of Plumbing licenses plumbing contractors in Maryland.
- How do I check a plumbing license in Maryland?
- The Maryland State Board of Plumbing keeps the record for plumbing contractors in Maryland. Use the official lookup on this page, and treat the board's own record as final.
- How much does a plumbing license cost in Maryland?
- $87.50 (Original master plumber/gas fitter license fee). $87.50 (Master plumber/gas fitter renewal fee). $43.50 (Original journeyman plumber/gas fitter license fee). $150.50 (Original master natural gas fitter license fee).
- How much experience do you need for a plumbing license in Maryland?
- Master plumber/gas fitter: at least two years as a journey licensee and 3,750 hours of training under a master plumber (journey: four years as an apprentice and 7,500 hours).
- How often does a plumbing license renew in Maryland?
- License renews for a 2 year term, expiring May 1 of an odd numbered year.
Other trades in Maryland
- General contractor license in Maryland
- Electrical license in Maryland
- HVAC license in Maryland
- Roofing license in Maryland
- All Maryland trades
Plumbing license in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Sources
- https://www.labor.maryland.gov/license/pl/
- https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_search/OP_search.cgi?calling_app=PLM::PLM_qselect
- https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbo§ion=12-301&enactments=false
- https://www.labor.maryland.gov/license/pl/plexam.shtml
- https://www.labor.maryland.gov/license/pl/plreq.shtml
- https://www.labor.maryland.gov/license/pl/plinsure.shtml
- https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbo§ion=12-308&enactments=false
- https://www.labor.maryland.gov/license/pl/plrecip.shtml
- https://www.labor.maryland.gov/license/pl/plaff.shtml
This is not a government site. The licensing board's own record governs; always confirm on the official lookup. Information as of October 6, 2026.