
Gas line work in DC has the strictest licensing requirements in the DMV. Every gas line install, modification, or repair requires a DC Department of Buildings permit pulled by a licensed plumbing-gas master contractor. Tim Whistler Plumbing holds DC license PGM-1002028 and handles new gas line installations, appliance hookups, outdoor gas runs, and emergency repairs across all eight DC wards.
DC has both modern gas infrastructure (Navy Yard, NoMa, Wharf) and 1800s and early 1900s gas lines (Capitol Hill, Georgetown, Northwest) still in use. Working on older DC gas service requires understanding what the line is made of, what shape it is in, and whether the new appliance demand requires an upsize. New gas line installations (for new appliances, outdoor runs, generator hookups) require DC DOB permits, pressure testing, and inspection before the line can be put into service.
We assess your existing gas service capacity, plan the new line routing, pull the DC DOB permit, run the new line per code, pressure test the work to DC inspection standards, and coordinate the inspection. The line is put into service only after the inspector signs off.
New gas line installation in DC typically runs $500 to $2,500 for a single appliance hookup with a short run, and $2,500 to $8,000 or more for longer runs, outdoor lines, or new appliance installations that include the gas line work. DC permit fees are included in the quote.
Yes, 24/7. If you smell gas, leave the house and call 911 or Washington Gas (844-WGAS-LEAK) first. Once the utility has confirmed and isolated the leak, call Tim Whistler Plumbing at 1-866-477-6190 for licensed repair.
Yes. Outdoor gas line installation for grills, fire pits, fire tables, and pool heaters is a common DC project. The line is sized to your existing gas service, run to the outdoor location, pressure tested, and terminated at a code-compliant outdoor shutoff valve. DC DOB permits are pulled as part of the install.
Call Tim Whistler Plumbing at 1-866-477-6190 for a free written estimate. Licensed plumbing-gas master (DC PGM-1002028, WSSC 6119360, VA 2710020030).