Noisy garage door

[Hazel Yu]

It has starting squeaking and grumbling, so much that we are afraid if the neighbors will complain of the sound. Greasing the door may solve the problem but since I ain't much of a DIYer I am not sure of the process. I have read a few blogs related to this http://www.heritagehomedesign.ca/blog/3-essential-garage-door-repair-tips/ , http://www.familyhandyman.com/doors/garage-door-repair/how-to-fix-a-noisy-garage-door/view-all. This one is Avante garage doors, I hope the process is same for all kind of doors.