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Plumbing Inspections

William Witty, Chief Plumbing Inspector
County Office Building
111 West Chesapeake Avenue, Room G21
Towson, Maryland 21204
Phone: 410-887-3620
Fax: 410-853-1893


Bill 41-15 (PDF): New County Plumbing and Gasfitting Code of Baltimore County was approved by the County Council on May 4, 2015 with an effective date of July 1, 2015

Primary Functions

  • Inspect work performed by licensed contractors to ensure conformity with the plumbing and gas code
  • Investigate plumbing or gas related complaints
  • Interact with contractors, engineers and property owners and answer code compliance questions
  • Issuance of plumbing licenses
  • Administer plumbing exams for licensing new applicants in compliance with the Baltimore County Code Regulation


All plumbing installations require a permit and should be inspected.

To schedule, reschedule, cancel or inquire about an inspection call 410-887-4638 or go to Inspection Connection and follow the prompts.

  • You will need your permit number.
  • You will need a three-digit inspection code number (provided on the website or by calling the above number).

All appointments must be scheduled directly with the district inspectors at 410-887-3620. Inspectors are in the office Monday through Friday, between 7:30 to 8 a.m. and again between 3 to 3:30 p.m.

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Plumbing Permits

  • All types of plumbing and gas installations are to be installed by a contractor licensed in Baltimore County.
  • Repair of faucets and replacement of water closet (toilet) parts do not require a permit.
  • Proper permits must be obtained prior to the commencement of any work.
  • Plumbing permits are required for all new installations.
  • The property district information is required at the time of purchasing a permit, see the Plumbing Inspectors' District Map (PDF).

Plumbing Permit Application (PDF) may be downloaded, filled in, and printed for processing in person or by mail, or it may be obtained by visiting:

Permit Processing
County Office Building, Room 100
111 West Chesapeake Avenue
Towson, Maryland 21204
Phone: 410-887-3900

View Plumbing Permit Fees (PDF).

Additional information required for permit application: 

  • Building permit number for residential or commercial building's Use and Occupancy. Check with your builder for the correct building permit number.

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Licensing Information

The Plumbing and Gasfitting Board advises the Director of the Department of Permits, Approvals and Inspections regarding the administration of Article 21, Title 15 of the Baltimore County Code, including licensing.

Utility licenses expire March 31 every other odd number year.
Other plumbing and gas licenses expire April 30 of every other odd number year.

Baltimore County recognizes and honors insured-to-work Propane Gasfitter Certificates in addition to the following state issued licenses:

  • Well Drillers
  • Pump Installers

Find licensed contractors.

Reciprocal Licensing

Baltimore County Plumbing Board reciprocates plumbing and gas licenses with the following only:

  • Baltimore City (gas only)
  • State of Maryland
  • Washington Suburban Sanitary Commission


  • Grinder Pumps: Plumbers should proceed carefully when hooking up grinder pumps. Read and understand procedures before proceeding to ensure pump is installed before hook-up.
  • On-site Utility Contractor
  • Disposal System Contractor
  • Water Pump Contractor

Examination Information

Examinations test for the knowledge of plumbing and gas installations and materials. The Baltimore County Plumbing Code effective as of May 1, 2013, adopted the 2012 National Standard Plumbing Code.

  • Fee: $30
  • Test Location:
                  County Office Building
                  111 West Chesapeake Avenue, Room G21
                  Towson, Maryland 21204
  • Plumbing Examination Applications      

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Current and Local Codes

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Revised September 23, 2015


Revised April 6, 2016        

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