The Post Office will open a newly modernised main branch at Ribbleton Post Office, 76 Longridge Road, at 1pm on November 23.
There will be two counter positions, one new style open-plan counter and one secure fortress position. The branch will open from 9am to 5.30pm Monday to Saturday.
The Post Office will have to close at 5.30pm on Tuesday, November 10 for the refurbishment to take place.
Alan Currie, area manager said: “We are confident that this vibrant new-style Post Office at the heart of the local community will meet customer needs. This modernisation is part of a major investment programme, the largest in the history of the Post Office and will secure services for the future. The investment marks a commitment to no more branch closures programme.”