08/28/2026
π§ One spring broke. We replaced both. Here's why.
This is the question we get most often on spring calls: "Only one broke β why are you replacing both?"
It's a fair question, and it deserves a real answer.
Your torsion springs are installed as a matched pair. They were manufactured together, installed on the same day, and they've lifted your door the exact same number of times. Every single cycle, both springs shared the load equally.
So when one snaps, it didn't fail because it was defective. It failed because it reached the end of its cycle life. The other spring has been through identical wear β it's sitting at the exact same point on the fatigue curve. It's not a question of if it'll break, it's when. And "when" is usually within a few months.
Three reasons we always do both:
1οΈβ£ SAME AGE, SAME CYCLES
Springs are rated for a set number of cycles. If one hit its limit, the other is right behind it. Replacing just the broken one means you're running a brand new spring alongside one that's fully worn out.
2οΈβ£ MISMATCHED TENSION CAUSES DAMAGE
A new spring and an old spring don't pull with equal force. That imbalance drags the door up crooked, puts uneven load on the cables and drums, and forces your opener to work harder than it should. You end up wearing out other parts prematurely.
3οΈβ£ ONE SERVICE CALL, NOT TWO
The labour is identical whether we replace one spring or two β we're already up there with the winding bars and the door disconnected. Doing both now costs a fraction of what a second full service call costs in a few months.
While we're up there, we also check the cables, the centre bearing, the end bearings, and the drums β because those wear on the same schedule.
β οΈ A serious safety note: torsion springs hold 200+ pounds of tension. Every year, homeowners and untrained handymen are seriously injured attempting this. Please don't. Winding bars, proper technique, and experience are not optional on this job.
π Call (613) 900-6005
β [email protected]
π ottawagaragetech.ca
Serving Nepean, Kanata, Barrhaven, OrlΓ©ans, Stittsville, Manotick, Greely, Carp, Riverside South, Gloucester, Cumberland, Rockcliffe, Westboro and all surrounding Ottawa communities.