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Broken Garage Door Spring in Parker? Signs, Dangers & Why It’s Not DIY

October 1, 2026

broken garage door spring Parker

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Straight talk on broken springs. We get it done!

You hit the button, the opener hums, and the door barely moves. Or maybe you heard a bang from the garage last night that sounded like somebody dropped a 2×4. Odds are good that’s a broken garage door spring.

We’re Mission GDS, a veteran-owned garage door company based in Parker. We’ll give it to you straight: here’s how to tell if your spring is broken, why it’s dangerous, what to do while you wait, and why this is one job you should hand to a pro.

If you already know the spring is gone, skip ahead and schedule broken garage door spring repair in Parker with the Mission GDS team. Book online or call (970) 788-2884.

What Your Garage Door Springs Actually Do

Your garage door is heavy. Many standard doors weigh well over a hundred pounds, and insulated or oversized doors can weigh a lot more. The opener doesn’t lift all that weight by itself. The springs do the heavy lifting by counterbalancing the door, so the opener (or you) only has to guide it.

When a spring breaks, that counterbalance is gone, and the full weight of the door is suddenly on the opener, the cables, and anyone trying to lift it.

Torsion Springs

Torsion springs mount on a steel shaft above the door opening. When the door closes, they wind up tight and store energy. When the door opens, they unwind and help lift it. Torsion springs are the most common setup on newer residential doors, usually with one or two springs on the shaft.

Extension Springs

Extension springs run along both sides of the door, above the horizontal tracks. They stretch as the door closes and pull as it opens. You’ll see them more on older or lighter doors. They should always have safety cables running through them to keep a broken spring from flying across the garage.

Signs of a Broken Garage Door Spring in Parker Homes

Some signs are obvious. Others are easy to mistake for an opener problem. Here’s what to look for:

  • A loud bang from the garage. When a torsion spring snaps, it releases its energy all at once. A lot of homeowners think something fell or a car backfired.
  • A gap in the torsion spring. Look at the spring above the door (don’t touch it). A broken torsion spring usually shows a clear gap of a few inches where the coil separated.
  • The door is very heavy or won’t lift. Without the spring helping, the door can feel like it weighs a ton because, practically speaking, it does.
  • The opener strains, hums, or quits. The motor runs, the door lifts a few inches and stops, or the opener reverses. Many openers have safety limits that stop them when the load is too heavy.
  • The door goes up crooked or falls fast. If one spring breaks on a two-spring door, or one side of an extension setup fails, the door can rise unevenly or slam down faster than normal.
  • Frayed, loose, or slack cables. Lift cables work with the springs. A broken spring often leaves cables hanging loose or knocked off their drums, and frayed cables are a problem all by themselves.

If you’re not sure whether it’s the spring or the opener, call us and describe what you’re seeing. If the opener turns out to be the issue, we handle garage door opener repair and installation too.

Why Broken Springs Are Dangerous

Garage door springs hold a serious amount of stored energy. A torsion spring that’s wound up to balance a heavy door is under high tension, and that energy wants out. When people get hurt working on garage doors, springs and cables are a big part of the reason.

Here’s what can go wrong:

  • Unwinding a torsion spring the wrong way can spin a bar or tool out of your hands with enough force to break bones or cause head injuries.
  • Extension springs without safety cables can whip loose and turn into a projectile.
  • A door with no working springs can drop suddenly. That’s a lot of weight coming down on fingers, feet, kids, pets, or a car hood.
  • Loosening the wrong bolt, like the bottom bracket that holds the cable, can release tension you didn’t know was there.

Why Spring Replacement Isn’t a DIY Job

Replacing a spring correctly takes more than swapping one part for another. Here’s what a pro brings to the job:

The Right Tools

Torsion springs are wound and unwound with solid steel winding bars sized to the winding cone. Screwdrivers, rebar, or whatever’s in the toolbox aren’t a substitute. They slip, bend, and that’s how people get hurt.

Correct Spring Sizing

Springs aren’t one-size-fits-all. They’re matched to the door’s weight and height, the drum size, and the track setup, using wire size, inside diameter, and length. Torsion springs are often rated by IPPT (inch-pounds per turn), and getting that wrong means a door that won’t stay balanced, wears out the opener, or fails early.

Replacing Springs in Pairs

On a two-spring door, both springs usually went in at the same time and have seen the same number of cycles. When one breaks, the other is generally close behind. Most pros recommend replacing both at once so you’re not calling for the same repair a few months later.

Balance and Safety Check

After the new springs go in, the door needs to be balanced so it stays put when it’s halfway open instead of crashing down or flying up. A good tech also checks the cables, drums, bearings, rollers, and the opener’s force and auto-reverse settings before calling it done.

What to Do Until We Get There

If you think you have a broken spring, here’s the short list:

  • Don’t keep running the opener. Hitting the button over and over can burn out the motor or strip the gears trying to lift a door it was never meant to carry alone.
  • Don’t try to lift the door by hand. It’s far heavier than you’d expect, and it can drop without warning.
  • Keep people, pets, and cars clear. Stay out from under the door, especially if it’s partly open.
  • Don’t touch the springs, cables, or brackets. Leave the hardware alone until a tech arrives.

How Long Do Garage Door Springs Last?

Standard torsion springs are commonly rated for about 10,000 cycles. One cycle is the door going up and back down once. For a household using the door a few times a day, that usually works out to roughly 7 to 10 years, though it varies a lot depending on how often you use the door and how the springs were sized.

Colorado weather is also commonly cited as a factor. Many in the industry say springs are more likely to snap during cold snaps, since cold steel can be more brittle and older springs that are already worn may finally give out when temperatures drop. If your springs are getting up there in age, keep an eye on them heading into a Front Range winter.

Frequently Asked Questions

Can I still open my garage door with a broken spring?

We don’t recommend it. The door is much heavier without the spring, it can drop suddenly, and running the opener can damage it. Call us and we’ll get you scheduled.

Should I replace both springs if only one broke?

On a two-spring door, usually yes. Both springs have seen the same wear, and the second one is often close to failing too.

How do I know if it’s the spring or the opener?

Look for a gap in the torsion spring above the door, or a stretched or broken extension spring along the tracks. If the springs look intact and the door is balanced, the opener may be the problem. Either way, we can check it out.

What areas do you serve?

We’re based in Parker (see our garage door repair in Parker) and serve Castle Rock, Highlands Ranch, Lone Tree, and the South Metro, plus Jefferson County: Littleton/Ken Caryl, Golden, Morrison, Evergreen, and Conifer.

Broken Spring? Call Mission GDS.

Don’t fight a heavy door or gamble with a wound spring. We’re a veteran-owned crew based in Parker, and we work on garage doors across the South Metro and Jefferson County. Call us and we’ll get you scheduled. We get it done!

Ready when you are.We get it done!