2026-03-26 6 min read
There's a sound that Lebanon homeowners dread: a sharp, sudden bang from the garage. loud enough to startle you from the kitchen. followed by a door that simply won't move. That's a broken garage door spring, and it happens more often than most people expect.
Springs are the unsung workhorses of your garage door system. They carry the full weight of the door. typically 150 to 300 pounds. every single time it opens and closes. When they fail, the opener can't compensate. The door either won't budge or becomes dangerously uncontrolled. The good news is that springs don't usually fail without giving some warning first. Here are seven signs Lebanon homeowners should know.
Garage doors typically use one of two spring systems: torsion springs, which are mounted horizontally above the door opening and twist to lift the door, or extension springs, which run along the horizontal tracks on either side. Both systems rely on stored mechanical tension, and both wear out over repeated use.
Most standard springs are rated for around 10,000 cycles. one cycle being a full open and close. If you use your garage door four times a day, that's roughly seven years of life. Push it to six or eight times a day (common in households where the garage is the main entrance), and you could be looking at replacement in four to five years. Lebanon's humidity also plays a role: moisture accelerates rust on spring coils, shortening their lifespan even when usage is normal.
For newer homes in Lebanon's growing subdivisions like Hamilton Springs or Hillview Farms, where the garage is often the primary point of entry, that cycle count adds up fast. Knowing your door's age and usage pattern gives you a head start on planning a replacement before a failure strands you.
This is often the first thing homeowners notice. Springs are responsible for counterbalancing the door's weight, making it easy to lift manually or with an opener. If you disconnect the opener and try to lift the door by hand. it should rise smoothly and stay at waist height without you holding it. If the door feels like you're lifting dead weight, or if it slowly creeps back down, the springs are losing tension and likely need replacement soon.
When a torsion spring breaks, it releases all of its stored tension at once. The sound is sudden and sharp. often compared to a gunshot or a car backfire. If you heard that sound from your garage and now your door won't open, don't force it. The spring has almost certainly snapped. Call a professional immediately and don't try to operate the door manually or with the opener. the system is unbalanced and the door could drop without warning.
If your door looks lopsided as it moves. one side rising faster than the other, or the door visibly tilting. one spring has likely failed while the other is still functioning. This uneven load puts enormous stress on cables, rollers, and the opener motor. Left unaddressed, that stress causes secondary damage that turns a straightforward spring replacement into a much more expensive repair.
Take a moment to look at your torsion spring. the horizontal coil mounted above the door opening. A healthy spring has tight, uniform coils with no separation. If you see a gap of an inch or more between coils, the spring has snapped. Extension springs may not show a clean gap but could appear visibly overstretched, hanging loose, or have one end detached from its anchor. Either way: stop using the door and schedule service.
Garage door openers are not designed to lift a door on their own. When springs weaken, the opener has to work far harder than it was built to handle. If your opener hums louder than usual, hesitates mid-lift, or reverses direction before the door is fully open, it may be compensating for failing springs. Continuing to run the opener under that strain can burn out the motor. adding a costly opener replacement on top of your spring repair.
For more detail on opener issues and how they connect to spring wear, check out our frequently asked questions page.
This is especially relevant in Lebanon, where our wet winters and humid summers create ideal conditions for rust to develop on metal components. Rust weakens the steel in your springs, making them brittle and far more prone to sudden failure. Run your eyes along the coil: surface discoloration, flaking, or orange-brown streaking are all signs of corrosion. A rusty spring isn't just cosmetically worn. it's structurally compromised and should be inspected and replaced before it snaps.
Your garage door should close at a controlled, even pace. Springs act as a buffer during the closing cycle, absorbing momentum so the door settles gently. When springs are worn out or have lost tension, that buffering effect disappears. If your door is falling quickly or slamming down before it reaches the floor, stop using it immediately. A door that slams is a serious safety risk. particularly for children or pets.
This is one of those repairs where the honest answer is: leave it to a professional. Garage door springs are under extreme tension. the stored mechanical energy in a wound torsion spring can cause serious injury if released incorrectly. The tools required (winding bars, cable drums, proper torque calibration) are specialized, and even experienced DIYers can make mistakes that result in a 200-plus pound door dropping suddenly.
Also worth knowing: when one spring fails, it's standard practice to replace both at the same time. Springs wear at a similar rate, so if one has failed, its partner is not far behind. Replacing both together saves you from repeating this service call in six months.
Garage Door Lebanon handles spring replacements throughout Wilson County, including homeowners coming from the Mount Juliet area looking for fast, reliable service. If you're seeing any of the signs above, contact our team to schedule an inspection. catching a failing spring before it snaps is always cheaper and less stressful than dealing with an emergency.
You can also browse our full list of service areas to confirm we cover your neighborhood.
Q: Can I still use my garage door if I think a spring is failing but it still opens? A: It's best not to. A weakening spring can snap without warning, and when it does, the door becomes unpredictable. it may drop suddenly or the opener may be damaged trying to compensate. If you're seeing warning signs, use the pedestrian entry door to your home until a technician can inspect the system.
Q: How long does a spring replacement take? A: For most single or double residential garage doors, a professional spring replacement typically takes one to two hours. The job includes removing the old spring, installing properly rated replacements, and testing the door balance and opener settings to make sure everything is calibrated correctly.
Q: Should I replace both springs at the same time, or just the one that broke? A: Replace both. Springs wear at roughly the same rate, so if one has failed, the other is likely close behind. Replacing both at once saves on labor costs and prevents you from needing the same repair again within the year.