The Garage Door Worked Yesterday… Today It Won’t Move: The Real Reasons (From a 13-Year Technician)

There’s nothing more frustrating than a garage door that worked perfectly yesterday but suddenly refuses to open or close today. I’ve been in this industry for over 13 years, and I can tell you this happens more often than people think. What makes it worse is that homeowners are usually caught off guard, assuming something small went wrong, when in reality, the issue has often been building up over time.

One of the most common causes I see is a broken torsion spring. This is the heart of your garage door system. Most people don’t even know it exists until it snaps. When it does, the door becomes extremely heavy, sometimes impossible to lift. Many customers call me saying their opener stopped working, but the truth is the opener is trying to lift a door that suddenly weighs hundreds of pounds more than it should. That’s not a motor issue—that’s physics.

Another major cause is cable failure. Cables don’t usually snap out of nowhere unless they’re worn down, frayed, or put under uneven pressure. I’ve seen cases where one cable breaks, causing the door to hang crooked. At that point, continuing to operate the door can make things much worse, bending tracks or even causing the door to come off completely.

Then there are off-track doors. This is something I deal with frequently, and it’s usually caused by impact or obstruction. A trash can, a bike, or even a small object can throw the door off alignment. Once that happens, forcing the door open or closed is one of the worst things you can do. I’ve seen homeowners turn a simple fix into a full system rebuild just by trying to “push it through.”

Let’s not forget about opener-related issues. While not as common as mechanical failures, they still happen. Sometimes it’s a stripped gear, sometimes it’s a logic board issue, and sometimes it’s just worn-out components from years of use. But here’s the key: the opener is usually not the root problem. It’s reacting to something else failing in the system.

One thing I always emphasize to my customers is this: garage doors don’t usually fail without warning. The signs are there—loud noises, slower movement, uneven lifting, or a door that just doesn’t feel right. Ignoring those signs is what turns a manageable repair into an emergency situation.

From my experience, the best approach is preventative maintenance. A simple inspection can reveal worn springs, loose hardware, or early cable damage before it becomes a serious issue. Most homeowners don’t think about their garage door until it stops working, but by then, the cost and inconvenience are much higher.

If your garage door suddenly stopped working, don’t assume it’s something minor. Get it checked by someone who knows what to look for. After 13 years in this field, I can tell you that catching the real problem early is the difference between a quick repair and a costly headache.