Can Disk Utility Be Run Remotely?
the short answer is, yes you can..

first, you need to be able to remote into her machine using SSH and terminal.

If you're unfamiliar with terminal, just stop right here and hire someone - doing remote login disk repairs is not for the uninitiated. You're more likely to erase the drive (or totally corrupt it) than to repair it. you'd need to either do a screen share or do a remote SSH login, but this would be the most powerful/fastest method..

If you're capable in terminal, this is your ticket..


http://ss64.com/osx/diskutil.html
http://www.theinstructional.com/guides/disk-management-from-the-command-line-part-1