How to Fix a Sagging or Misaligned Garage Door

Garage doors are the workhorses of the home, yet we rarely notice them until they start grinding, binding, or refusing to sit flush against the floor. A sagging door is usually the result of loose hardware or imbalanced spring tension, while misalignment typically points to bent or shifted tracks. Getting it back into shape is less about brute force and more about precise, incremental adjustments that restore a clean, smooth travel path. Done well, your garage door should glide silently and seal tightly against the concrete without a single hesitation. If you catch these issues early, you avoid premature motor failure and expensive track replacements. This guide will walk you through the structural realignment process so you can get your door back on track—literally—without calling in a professional service team.

  1. Test Spring Balance First. Disconnect the door from the opener by pulling the red emergency release cord. Raise the door manually to waist height and let go; if it stays in place, the springs are balanced. If it falls or shoots upward, the spring tension is incorrect.
  2. Secure Every Hinge. Inspect every hinge and roller bracket on the door panels. Use a socket wrench to tighten any loose bolts that might be contributing to a panel tilt or sag.
  3. Loosen—Don't Remove. Find the mounting brackets holding the tracks to the wall. Slightly loosen the bolts connecting the tracks to the brackets, but do not remove them entirely.
  4. Plumb Tracks Perfectly. Use a level to ensure the tracks are perfectly vertical. Ensure the tracks are at the same distance from the door edge at both the top and bottom to prevent binding.
  5. Lock Tracks Into Place. Once the tracks are level and aligned, tighten the mounting bolts firmly. Ensure the gap between the rollers and the track is consistent throughout the entire vertical path.
  6. Run Full Test Cycle. Reconnect the garage door opener and run the door through a full cycle. Watch the rollers carefully to ensure they aren't catching on any joints in the track.