Skip to Main Content

Maryland Board of Plumbing

The offices of the Maryland State Board of Plumbing are open and serving our customers through our online licensing resources, via e-mail and telephone, and by limited in-person appointments. Please note, walk-in assistance is not available. We can be reached using our contacts page for e-mail addresses and telephone numbers of individual staff members; or

Schedule an Appointment

Use Labor’s Central Scheduling System to meet with a representative from one of our boards or commissions. Please select the type of appointment you need from our list of available in-person services using the drop-down menu on the scheduler. You will receive an e-mail confirming the date and time of your appointment.

Appointments are available Monday through Friday, from 10:00 a.m. – 4:00 p.m. at our offices located at 500 N. Calvert Street, Baltimore, MD 21202. Please enter the building using the Calvert Street entrance and arrive at least 10 minutes early before your scheduled appointment time.

Welcome to our home page. The Maryland State Board of Plumbing licenses and regulates individuals who provide or assist in providing plumbing and gas services in Maryland. The Board also issues natural gas fitter licenses to qualified individuals who are non-plumbers. Both of these types of licenses are required for work throughout the state except for Baltimore County and the areas served by the Washington Suburban Sanitary Commission (WSSC). These two jurisdictions issue their own licenses and have their own plumbing code. The State Plumbing Board also issues a certificate to qualified individuals who are non-plumbers to provide propane gas services throughout the entire state.

News and Updates

Proposed Regulations Currently Open for Public Comment

To register your comments with the Board, send your letter to the Maryland Board of Plumbing, 500 N. Calvert Street, Room 481, Baltimore, MD 21202; call 410-230-6379; e-mail DLOPLplumbing-LABOR@maryland.gov; or fax 410-244-0977.

Contact the BoardContact the Board
Maryland Board of Plumbing
500 N. Calvert Street, Third Floor Payment Center
Baltimore, Maryland 21202-3651
410-230-6379 (Baltimore area) or 1-888-218-5925 (toll free)
Fax: 410-244-0977
e-mail: DLOPLplumbing-LABOR@maryland.gov