Stop using the door, secure it if you can safely do so, and call. Here's exactly why, and what happens next.
Don't attempt to open or close the door further, manually or with the opener.
If it's part-open and stable, leave it. Don't try to force it fully open or closed.
If the door's open and that's a security concern, block the gap some other way temporarily rather than fighting the door.
A snapped cable is a same-day repair in most cases, not an emergency requiring you to force anything yourself.
The cable and spring work together under real tension to counterbalance the door's weight. With one cable gone, that balance is broken, the door can be unpredictable to move, and the remaining cable or the spring itself can be carrying more load than it's rated for. This isn't a tools-and-YouTube job, the injury risk is genuine and the door can come off the tracks entirely if forced.
We'll check the spring's condition as well as fitting the new cable, a cable snapping is sometimes a symptom of a spring that was already failing and putting extra strain on it. Replacing just the cable without checking the spring risks a repeat callout within months. Full detail on the repair itself is on our cable repair page.
Cables don't usually snap without warning signs first, fraying, visible wear, or a door that's been lifting slightly unevenly for a while. A routine annual service catches this kind of wear before it becomes a snapped cable and an unusable door, worth considering if this is the first time you've had a service done.
If it's stable and not blocking anything urgent, yes, leaving it alone is safer than trying to move it further yourself.
Call us first, we can usually talk you through a safe manual approach if the situation genuinely requires it, rather than you guessing at the door's mechanism under pressure.
Most calls booked before early afternoon get a same-day slot. No callout fee if we carry out the repair.