Although I have spent years perfecting hinged swinging doors I never really got into Sliding Patio Doors however I have a good friend that does do them as well as windows.
So, If you have come here looking for someone to repair or replace your Patio Door please give my friends a call because not only can he replace your damaged track or hardware but he can also Install a beautiful new door and don't forget to ask about windows also.
They're really good at what they do and I have referred them for years now without a single complaint and this is how you can contact them.
And don't forget to tell him that I recommended them to you
COASTLINE TRACK REPLACEMENTS
ANDY & DIANE REMP