How can I tell if the garage door spring is balanced properly?
Open the door halfway by hand (release operator first) and let go of the door. The door should pretty much stay in the same position, although some slight drifting may occur. If the door wants to drop or if it opens on it’s own the garage door springs should be adjusted by trained and experienced garage door service technicians. To avoid possible severe injuries do not attempt to adjust the springs yourself without having the proper training and tools.