Garage door springs do the heavy lifting, literally, counterbalancing the weight of the door so that the opener’s relatively small motor can move it. When a spring starts to fail, it rarely happens without warning, and recognizing the early signs can prevent a sudden, dangerous failure down the line.
Two Main Types of Garage Door Springs
Most residential garage doors use either torsion springs, mounted horizontally on a metal shaft directly above the closed door, or extension springs, mounted above the horizontal tracks on either side of the door. Both types store significant mechanical energy and both should be treated with the same level of caution when problems arise.
Warning Sign 1: A Loud Bang From the Garage
A sudden, sharp bang, sometimes described as sounding like a gunshot, coming from inside the garage is a classic sign of a torsion spring breaking. If you hear this sound, do not attempt to open or close the door using the opener, since the door will no longer be properly counterbalanced.
Warning Sign 2: The Door Feels Unusually Heavy
If you disconnect the opener using the manual release and the door feels noticeably heavier to lift than it used to, or will not stay in place when lifted halfway, this points to weakening spring tension, even if no dramatic failure has happened yet.
Warning Sign 3: A Visible Gap in the Spring
For torsion springs mounted above the door, a visible gap or separation in the coil is an unmistakable sign of a broken spring. For extension springs along the tracks, look for a spring that appears stretched unevenly compared to its pair on the opposite side, or one that has visibly separated.
Warning Sign 4: The Door Opens Crooked
If your door has two torsion springs and only one has broken or weakened significantly, the door will often appear to open or close at an angle, with one side lifting faster or further than the other, since the counterbalance is no longer even across the width of the door.
Warning Sign 5: The Opener Strains or Struggles
An opener motor working harder than usual, making unusual noises during operation, or triggering safety reversals more frequently can be a sign that it is compensating for a weakening spring, essentially doing mechanical work the spring should be doing instead.
Why Spring Age Matters
Garage door springs are rated by cycle count, typically somewhere between 10,000 and 20,000 open-close cycles, which for an average household translates to roughly seven to twelve years of typical use. If your springs have never been replaced and your door is approaching or past this age, proactive replacement before a failure is a reasonable consideration.
Why This Is Not a DIY Repair
Garage door springs are under extremely high tension even when the door is fully closed, and the tools required to safely wind or unwind torsion springs (winding bars, specifically) are not something most homeowners own or have experience using. Attempting a spring repair without proper training and tools has caused serious injuries, including broken bones and worse, which is why professional installation is strongly recommended industry-wide.
What to Do If You Suspect a Spring Problem
Stop using the automatic opener, use the manual release only if you must open the door and do so with extreme caution (ideally with help), and contact a licensed garage door technician promptly rather than living with a compromised spring system, since the risk only increases the longer a weakened or broken spring remains in use.
Routine Maintenance That Extends Spring Life
Applying a light coat of garage-door-specific lubricant to the spring coils once or twice a year, keeping the garage reasonably climate-controlled to reduce rust-causing humidity, and having springs professionally inspected during any other garage door service call can meaningfully extend the working life of your springs.