What the Hinges Do
A sectional garage door is a stack of panels joined by hinges, so the door can bend as it rolls from the wall up onto the ceiling track. The hinges on the sides also hold the rollers. When a hinge cracks or its screws pull loose, that section flexes, the roller can lean out of the track, and the door starts to sag, bind or make noise.
Hinges Are Numbered
The number stamped on each side hinge tells you how far the roller sits out from the door. It steps up from the bottom of the door to the top so the door hugs the track as it curves. Putting the wrong number in a spot makes the door ride crooked or rub. Zach matches each replacement to its position.
Signs of a Hinge Problem
- A visible crack in a hinge, often near the middle of the door where it works hardest.
- Screws backing out or holes in the door that are stripped and loose.
- A section that bows or sags when the door is open.
- A roller that leans or sits at an angle in the track.
- Popping or creaking as the door bends over the top of the track.
How Zach Fixes It
He replaces cracked hinges with the right numbered hinge, re-anchors loose ones, and repairs stripped screw holes so the hinge holds. He checks the rollers and track at the same time, since a bad hinge often wears the roller it carries. Then he lubricates the hinge pivots and runs the door.
The bottom corner hardware is tied to the lift cables and stays under spring tension, so leave that to a pro. The tune-up covers tightening and checking all of this in one visit.