PGWorks.com and YellowPages.com both list the office locations of Philadelphia Gas Works. All PGW offices are in Philadelphia, Pennsylvania, as of 2015. PGW corporate headquarters is located at 800 West Montgomery Avenue, while the Center City customer service office is located at 1137 Chestnut Street.
The other five customer service offices are at 4410 Frankford Avenue in Frankford, 212 West Chelten Avenue in Germantown, 1337 West Erie Avenue in North Philly, 1601 South Broad Street in South Philly, and 5230 Chestnut Street in West Philly.
PGWorks.com also lists the days and hours that each location is open. For more information, residential customers can call PGW at 215-235-1000, Monday through Friday, from 8 a.m. to 6 p.m. Business customers can call 215-235-7077, Monday through Friday, from 8 a.m. to 4 p.m.