Hello... There are professional recovery companies, what is your price range? they basically take the drive apart and build the platters back into another unit.
Lesson learned here, is to make multi data backups on important data or your personal Work history can be lost in a matter of seconds.
Does the computer show any Data on it at all? and what does it describe the existing format as? is it still spinning? there is Software than can recover some of the DATA, if the format has changed.