7 min read A2Z Garage Doors
A snapped garage door spring can leave you stranded, but understanding whether your door uses torsion or extension springs helps you know what to expect and why professional replacement matters. The type of spring on your garage door affects everything from repair cost to safety risk. We'll break down both types so you can make an informed decision.
Your garage door relies on one of two spring systems. Torsion springs wind tightly around a rod above the door opening, storing rotational energy to lift the heavy panel. Extension springs run horizontally along the top tracks on either side of the door, stretching and contracting to provide lift. Most modern homes in Duarte use torsion springs because they're safer, last longer (typically 7 to 9 years with regular use), and handle weight more smoothly.
Extension springs are older technology, common in homes built before the 1990s. They sit higher above head level and use pulleys and cables to function. When an extension spring snaps, the cable can whip dangerously, which is why safety cables were eventually added to this design. If you're unsure which type you have, look above your garage door. A single horizontal rod with wire wrapped around it means torsion. Two springs running parallel along the top tracks mean extension.
Torsion springs provide superior balance and put less stress on your garage door opener. This extends opener life and reduces the risk of a door crashing down if a spring fails. Extension springs, by contrast, create uneven tension, which can wear out openers faster and make the door feel jerky during operation.
The real difference shows up in durability. A quality torsion spring handles roughly 10,000 to 15,000 cycles (each open and close counts as one cycle). Extension springs typically manage 5,000 to 10,000 cycles before weakening. In a busy household that opens and closes the door 4 to 8 times daily, you're looking at replacing torsion springs roughly every 7 to 9 years, while extension springs may need attention sooner.
**Need garage door springs in Duarte today?** Call 626-605-6283. we cover same-day service across the area.
This point deserves emphasis. Spring replacement is one of the most dangerous garage door tasks. Both types store enormous tension (hundreds of pounds of force) that can cause serious injury if the spring unwinds unexpectedly. A snapped torsion spring can snap the winding rod, and a broken extension spring can release cables with enough force to cause lacerations.
Professional technicians use specialized winding bars and brackets to safely disarm the tension before work begins. We also inspect the cable, pulley system, and door balance as part of the job, catching problems that might otherwise cost you more later. If you're seeing signs of wear (squeaking, uneven door movement, visible wear on cables), don't wait for a complete failure. Read about when to replace springs before disaster strikes to understand early warning signs.
Torsion spring replacement typically costs between $200 and $400 per spring, including labor and a new cable if needed. Extension springs run $150 to $300 per spring. Most Duarte homes have two springs, so budget accordingly. A complete breakdown of pricing factors can help you understand what drives estimates higher or lower.
Garage Door Duarte offers same-day service for spring replacement across Duarte and surrounding areas like Monrovia and Arcadia. When you call with a snapped spring, we can often arrive within hours, assess the damage, and provide a firm estimate on the spot. This means you're not guessing about cost or waiting days for your door to be functional again.
Spring problems don't improve with time. A weakening spring makes your door harder to open, strains your opener, and increases the risk of a sudden failure that leaves you unable to access your garage when you need it most.
Schedule a free quote with our team or call 626-605-6283 to describe what you're seeing. We'll confirm your spring type, assess the condition of your cables and pulleys, and give you a clear cost estimate. Most spring jobs can be completed the same day you call.
How long do garage door springs actually last? Torsion springs typically last 7 to 9 years with normal residential use, while extension springs may need replacement sooner. Cycle count matters more than calendar years. Heavy daily use or extreme weather can shorten lifespan.
Can I replace just one spring or do I need both? When one spring fails, the other is nearing the end of life. Replacing both at the same time prevents a second failure weeks later and ensures your door stays balanced and properly weighted for your opener.
What happens if a spring breaks while I'm using the door? The door will stop mid-travel or fall quickly. A snapped torsion spring means your opener must support the full door weight, which it cannot do safely. This is why professional replacement matters more than DIY attempts.
Is a snapped spring always a safety issue? Yes. A snapped torsion spring can collapse internal components, and a broken extension spring can release cables under tension. Even if the door seems stuck but functional, the underlying structure is compromised and creates injury risk.
How do I know if my spring is about to fail? Listen for squeaking or creaking when opening the door. Watch for uneven movement, where one side appears slower than the other. A door that feels heavier to open manually is often a sign of spring weakness. Call for an inspection if you notice any of these signs.