A garage door that closes crooked usually means one side is dropping faster than the other, and the cause is almost always mechanical: a broken cable, an unbalanced spring, a bent track, or a roller that's given out. This guide walks through diagnosing and fixing an uneven garage door close in 2026, step by step, before it turns into a door that won't close at all.

Why this matters

An uneven close isn't cosmetic. A door binding against one track puts extra load on the opposite spring and cable, and that imbalance accelerates wear on parts that aren't cheap to replace. Left alone for a few weeks, a door that closes crooked often turns into a garage door stuck off its track, or a cable that snaps mid-cycle with 150+ pounds of door hanging on it.

The fix depends on which side is dropping and by how much. A quarter-inch lean at the bottom corner is usually a track or roller problem you can handle in an afternoon. A 2-inch tilt with a visible gap at the top of the door almost always means a spring or cable issue, and that's where a homeowner should stop and call a technician.

What you'll need

• Tape measure
• Adjustable wrench and a 7/16-inch socket set
• Level (a 2-foot level works fine)
• Work gloves and safety glasses
• Flashlight for track and hinge inspection
• Replacement rollers (nylon, 2-inch stem) if rollers are visibly worn
• 15-20 minutes for inspection, up to 90 minutes if you're swapping rollers or realigning track

Skip any step involving the torsion spring or the lift cables themselves. Those parts are under 150-200 pounds of tension on a standard residential door, and a slipped wrench can cause a serious injury. That work belongs to a technician, not a Saturday project.

The steps

1. Watch a full open-close cycle

Stand back and run the door through one full cycle, watching where the unevenness starts. Does it lean at the very bottom of the close, or does it tilt the whole way down? A tilt that appears only in the last foot usually points to the track or a bottom roller. A tilt present through the entire travel points to spring tension.

Common mistake: people watch the door from the front and misjudge which side is actually low. Stand at the side, sight down the bottom weatherseal against the floor, and confirm which corner touches down first.

2. Check for a visible track bend

With the door closed, run your eye down both vertical tracks from the floor to the top of the curve. A track that's pulled away from the wall, bowed inward, or dented from an impact will cause a roller to bind on one side only.

Use the level against the track face. Anything more than 1/8 inch out of plumb over a 3-foot section is enough to cause a hitch in the door's travel. Expected outcome: a straight track shows no daylight gap between the level and the rail.

3. Inspect the rollers on the low side

Rollers wear unevenly, especially on doors that see daily use. A cracked nylon roller or one with a flat spot creates drag that slows one side of the door down relative to the other, and that shows up as an uneven close.

Spin each roller by hand with the door open. A roller that doesn't spin freely, wobbles on its stem, or shows visible chunks missing needs replacing. This is the single most common fix for a garage door that closes unevenly on older doors, and it's covered in more detail in the guide to roller replacement for sticking or noisy doors.

Common mistake: replacing only the roller that looks worst. If one roller failed from age, the matching roller on the same track segment is usually close behind. Replace them in pairs.

4. Tighten loose hinges and roller brackets

Hinges connect each door panel and hold the roller brackets in place. A loose hinge lets a panel sag on one corner, which throws off the whole door's alignment even if the track and springs are fine.

Go panel by panel with a 7/16-inch socket and snug every hinge bolt. Don't over-torque plastic or reinforced hinges — stripped screw holes are worse than loose ones. Expected outcome: no visible gap between hinge plate and panel when the door is closed.

5. Check the cable drums for even wind

On a torsion-spring system, each cable winds around a drum at either end of the spring shaft. If one cable has slipped off its drum groove or wound unevenly, that side of the door drops faster during close.

With the door fully closed, look at both drums — the cable should sit in a clean spiral with no overlap or bunching. Uneven winding here is a spring-system problem, not a DIY adjustment. Skip attempting to rewind a cable yourself; this is where torsion spring tension makes the job dangerous.

6. Test the door balance manually

Disconnect the opener (pull the emergency release cord) and lift the door halfway by hand. A properly balanced door stays put at that height. If it slides down or shoots up, the springs are out of balance — a classic cause of a door that closes crooked or won't close all the way.

A door that's noticeably heavier to lift on one side than the other is telling you exactly where the spring problem lives. Older torsion springs (10+ years, several thousand cycles) lose tension unevenly, and mismatched torsion springs on heavier doors make the imbalance worse over time.

7. Re-test after adjustments

Reconnect the opener and run three full cycles. Watch the same corner you flagged in step one. If the lean is gone, you're done. If it's better but not fixed, the remaining problem is almost certainly spring tension, which needs a technician with a tension gauge and spring winding bars.

Troubleshooting

• Door drops hard on one side only at the very last few inches: check for a bent track section near the floor — impact from a car bumper or snowblower is the usual cause.
• Door reverses before fully closing: this often isn't the unevenness itself but the safety sensors reacting to it. Realign the sensors per the safety sensor realignment guide before assuming it's a spring issue.
• Door is quiet on one side, grinding on the other: worn rollers on the noisy side, almost always.
• Door was level yesterday, crooked today: check for a snapped cable strand first — sudden onset points to hardware failure, not gradual wear.
• Door leans toward the opener side specifically: inspect the header bracket where the opener arm attaches; a loose bracket can pull that top corner down.
• Door binds only in cold weather: track expansion and contraction can tighten tolerances in winter; check the guide on preparing a garage door for severe weather for seasonal adjustments.

Tools and resources

• 7/16-inch socket set and adjustable wrench for hinge and bracket work
• 2-foot level for track plumb checks
• Replacement nylon rollers, sold in pairs
• If the door is stuck mid-track rather than just uneven, see fixing a garage door stuck off its track
• A tension gauge and winding bars — professional-only tools for spring work

What to do next

If steps 1 through 4 don't resolve the lean, the problem sits in the spring or cable system, and that's not a project to finish with hand tools. A door that's off by more than an inch at one corner is carrying uneven load on both springs, and running it in that state for more than a few cycles risks a full cable snap. Get a technician out before the imbalance turns into a door that won't close at all.

FAQ

One last thing

The corner that drops first almost always tells you which spring or cable is weaker — not which roller looks worst. Technicians sight the low corner before touching a single bolt, because chasing the wrong side wastes an afternoon and can mask a cable that's about to fail.

Related guides

• Roller replacement for sticking or noisy doors
• How to tell if you need repair or replacement
• Fixing a garage door that won't close all the way