The office of the Register of Wills is located in Room 180, City Hall, Philadelphia, Pennsylvania. The general telephone number is 215-686-6250. The office hours are from 8:30 a.m. to 5:00 p.m. Mondays through Fridays, except legal holidays.

The Register of Wills also provides services at two satellite offices: (1) the Northeast Municipal Services Building located at Welsh Road and Roosevelt Boulevard, Philadelphia, 215-698-3960; and (2) the North Philadelphia office at 22nd and Somerset Streets, Philadelphia, 215-685-9738. Probate clerks are on duty in the Welsh Road office on Tuesdays and Thursdays and in the North Philadelphia office on Wednesdays from 9:00 a.m. to 5:00 p.m., except legal holidays. No records are kept in the satellite offices, and it may be necessary to coordinate a probate or administration proceeding between the two offices. If, for example, a proceeding is instituted in the City Hall office and a witness to the Will wishes to attest to his signature in the Northeast office, the Register's office in City Hall should be contacted and arrangements made to have the Will taken to the Northeast office. It is important that this arrangement be made in advance to make certain that the proper documents will be available. If a proceeding is instituted in a satellite office, it can be completed in the City Hall office. No short certificates or certified copies of documents are issued at the satellite offices, but arrangements can be made there for mail delivery of these items.