Plumber license in Maryland
Maryland requires a state-level plumber license.
Required license type
Maryland requires home improvement contractors to be licensed through the Maryland Home Improvement Commission (MHIC). The Department of Labor's DLLR licenses electricians, plumbers, and HVACR contractors statewide.
Application requirements
Working as a plumber in Maryland typically requires submitting an application packet to the Maryland State Board of Plumbing — including proof of experience, exam scores, and insurance.
- Proof of relevant trade experience or apprenticeship hours
- Passing score on the state trade exam(s)
- General liability insurance + workers' comp
- Surety bond filed with the board (when required)
- Business entity registration with the Secretary of State
- Background check + license fee submitted with packet
This is the standard packet most U.S. state boards require. Verify the exact list with the Maryland State Board of Plumbing before applying — requirements change by trade classification.
Fees and renewal cycle
Total cost to become a licensed plumber in Maryland ranges from $200 to $8,500 (typical $1,500). The range covers application + exam fees, bond + insurance premiums, and the first year of business registration.
Most state boards renew on a 1-3 year cycle and require continuing education credits. Verify the exact renewal window and CE requirement with the Maryland State Board of Plumbing — late renewal typically triggers a reinstatement fee.
Reciprocity with neighboring states
Maryland borders 5 other launched states ProFix Directory tracks. Reciprocity is set by each state board individually — check the destination state for the current rule before relying on it.
Where to apply
Maryland State Board of Plumbing
Board phone: +1-410-230-6231
Maryland requires home improvement contractors to be licensed through the Maryland Home Improvement Commission (MHIC). The Department of Labor's DLLR licenses electricians, plumbers, and HVACR contractors statewide.
Why ProFix verifies every plumber
Every pro we list in Maryland is matched against the Maryland State Board of Plumbing record, the Secretary of State business registry, and OSHA inspection data. We surface license status, revocation history, and bond filings on every profile so homeowners can shortlist verified pros without trusting a single review-platform score.
Common questions
- Do I need a plumber license in Maryland?
- Maryland requires plumber contractors to hold a Maryland Plumber license from the Maryland State Board of Plumbing. Apply through https://labor.maryland.gov/license/plumber/ with a typical $1,500 total fee (range $200-$8,500) and a 1-3 year renewal cycle. Verify the exact classification with the board before submitting.
- Which board handles plumber licensing in Maryland?
- Maryland State Board of Plumbing is the relevant authority shown in the Maryland licensing seed for this page. The verification or application URL in the loader is https://labor.maryland.gov/license/plumber/.
- How much does a plumber license cost in Maryland?
- The recorded licensing cost range is $200-$8,500, with a typical total around $1,500. That range comes from the page loader and covers application, exam, bond, insurance, or registration costs where they apply.
- What requirements should Maryland plumber applicants verify?
- Maryland requires home improvement contractors to be licensed through the Maryland Home Improvement Commission (MHIC). The Department of Labor's DLLR licenses electricians, plumbers, and HVACR contractors statewide.
- Are Maryland plumbers licensed?
- Yes. The State Board of Plumbing licenses Apprentice, Journey, and Master plumbers.
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