You’ll need Licensed Master Plumber to make any required repairs. The plumber will:
Request the utility company to shut off service
File for a permit with the DOB
Pressure test the system to find any leaks
Make required repairs
Pressure test the system to confirm system integrity after repairs
Arrange for and be present at a DOB physical inspection which will include a pressure test
Obtain gas authorization, complete any required utility paperwork and arrange for gas turn-on