Mailbox replacement begins with the removal of existing mailboxes and posts. Your mailbox is placed on a temporary support while work is underway so you can continue to get mail.
The old posts are cut down to ground level, then dug out before the new posts are placed.
Making sure the post height is level
Smile for the camera!
Checking out the work before the next steps, angle supports, end pieces, and mailboxes
The basic structure is in.