Garage Door Cable Snapped? 4 Common Causes & What to Do
When a garage door cable snapped, it doesn’t just stop your door from moving—it creates a serious safety hazard. These heavy-duty steel cables are responsible for lifting the full weight of your door. When one fails, the door can become crooked, stuck, or even come crashing down without warning.
Understanding why cables break is the first step in preventing a costly emergency. Here are the most common causes of a broken garage door cable.
1. Natural Wear and Tear
Every time you open or close your door, the cables are under immense stress. Over several years of daily use, the individual steel strands begin to weaken and fray. Without regular preventative maintenance, these tiny frays eventually lead to a complete snap.
2. Rust and Corrosion
Ontario’s humid summers and salty winters are tough on metal components. If moisture builds up on the cables, rust begins to eat away at the steel. This corrosion makes the metal brittle and significantly increases the chances of the cable snapping under the pressure of the torsion springs.
3. Improper Cable Tension
For your door to lift smoothly, the cables must have the perfect amount of tension.
Too Loose: The cables can slip off the drums and become tangled or jammed in the tracks.
Too Tight: The excessive strain pulls on the steel strands, leading to a premature break.
4. Lack of Lubrication
Many homeowners forget that cables need lubrication just like rollers and hinges. Without proper lubrication, the cables create friction as they wind around the drums. This friction generates heat and physical wear that shortens the lifespan of the cable.
How to Prevent a Snapped Cable
A little bit of attention every few months can save you from a dangerous situation:
Visual Checks: Every six months, look at your cables for any “fuzzy” looking wires (fraying) or spots of rust.
Listen for Clues: If your door squeaks or moves in a jerky motion, the cables may be struggling.
Keep it Clean: Gently wipe away salt and dirt buildup from the cables during the winter months.
Why You Should Never DIY a Cable Repair
If your garage door cable snapped, you might be tempted to fix it yourself. However, cables are attached to the bottom brackets which are under extreme tension from the springs. One wrong move can cause the spring to unwind rapidly, leading to severe injury.
Professional technicians have the specialized tools and training to replace cables safely while ensuring the door is perfectly balanced.
Professional Cable Repair in the GTA
At Dodds Doors, we’ve been the trusted name in garage door repairs since 1958. We provide fast, reliable service to get your door back on track safely.
Is your garage door acting up? Don’t wait for a total failure. Call Dodds Doors today at 1-877-503-6337 for a professional inspection or emergency cable replacement.