About the content
The guidance on this site describes how residential garage doors usually behave. It is general information, not an instruction to work on your own door. Garage door springs and cables hold enough stored energy to cause serious injury. Nothing here is a diagnosis of your door, and no page here replaces a technician looking at it.
Photographs on this site are of our own jobs. Text, photographs and the logo belong to 770 Garage Door Repair and may not be copied for use elsewhere.