The short version: a garage door with a broken spring is no longer a balanced door. It is 150 to 400 pounds of steel with nothing holding it up. You can lift one by hand, with the opener disconnected, two adults, and the door blocked before anyone steps under it. But unless something is trapped inside, the better move is to leave the door closed and call. A spring swap is same-day work and usually finishes in under an hour.
First, Confirm It Is Actually the Spring
Stand inside the garage with the door closed and look at the steel shaft running across the wall above the opening. Wound around it are one or two torsion springs. A broken one shows an unmistakable two to four inch gap in the coil, like someone cut a slice out of it. If your door instead has long springs stretched front to back along the tracks, those are extension springs, and a broken one usually hangs slack or lies on the track.
Most people do not need to look. A torsion spring lets go with a bang that carries through the whole house and gets blamed on a car hitting the door. The other tells are consistent: the opener strains and the door rises three or four inches before stopping, the top section flexes and creaks, or you grab the bottom of the door and it is startlingly heavy. If none of that matches what you are seeing, work through our garage door won't open checklist first, because a dead remote and a tripped photo eye look similar from the driveway.
Why the Door Is Suddenly So Heavy
The opener is not what lifts your garage door. The spring is. A torsion spring is wound to store almost exactly the weight of the door, so that a balanced door will hang wherever you leave it and can be raised with one hand. The opener only supplies the nudge that starts and stops the motion, and a typical half-horsepower unit is engineered to overcome around ten pounds of imbalance.
When the spring breaks, all of that counterbalance disappears in an instant. A single-car steel door is roughly 150 pounds. An insulated double-car door is 200 to 300. Add a carriage-style wood overlay and you are past 400. That is the load now sitting on your hands, your cables, and whatever is under the door.
Do Not Press the Button
This is the mistake that turns a $350 repair into a $1,200 one. Running the opener on a door with a broken spring makes the motor try to lift the entire door on a gear train that was never designed for it. What breaks next is predictable: the plastic drive gear strips, the rail bows, the trolley snaps, or the door climbs a few inches, jams, and pulls the cables off the drums. Now you need a spring, a cable set, and often an opener.
Worse, a door that lifts partway and slips can come down hard on a bumper, a bicycle, or a person. Unplug the opener at the ceiling outlet before anyone does anything else. That removes the temptation and the remote in someone else's pocket.
When You Should Not Lift It At All
Leave the door closed and wait for a tech if any of these are true:
- You are alone. This is not a one-person job on any door bigger than a single.
- The door is a double, insulated, or wood-clad. Too much weight for a hand lift, full stop.
- The cables are slack, frayed, or off the drums. A cable that lets go under a hand lift drops the door instantly and unevenly.
- The door is already partway open. A partly open door with a broken spring is the most dangerous state it can be in. Do not add load to it, do not walk under it, and tell us on the phone so the tech arrives ready.
- The bottom section is bent or a roller has left the track. That is an off-track garage door repair, and forcing it makes the track damage worse.
The Safe Manual Lift, Step by Step
If your car is trapped and you have a second adult, this is how it is done. Read all six steps before starting.
- Unplug the opener. At the outlet in the ceiling. Not the wall switch.
- Clear the opening. Nobody under the door, nothing in its path, kids and pets out of the garage entirely.
- Pull the emergency release with the door fully closed. The red cord hanging from the trolley disconnects the door from the opener carriage. Pull it straight down, never at an angle, and only with the door on the floor. Pulling that cord on a raised door with a broken spring drops the door.
- Lift together, from the bottom, with your legs. One adult at each side of the door, hands flat under the bottom edge, backs straight. Go slowly and keep the door level. If it feels wrong, set it back down. There is no prize for finishing.
- Block it before anyone steps under. This is the step people skip and the reason garage doors put people in the hospital. Clamp locking pliers onto both vertical tracks just below the bottom roller, or wedge a sturdy 2x4 upright in each corner of the opening. Only then move the car.
- Lower it the same way. Both people back on the door, remove the blocks, and walk it down under control. Do not let it fall the last two feet.
Once the car is out, leave the door closed until the tech arrives. A hand-lifted door propped open is an open house with a heavy hazard hanging over the entrance.
What About the Emergency Release Cord?
The red cord does exactly one thing: it disconnects the door from the opener trolley so the door can move independently. It is not a lifting aid and it does not reduce the weight of the door by an ounce. Its safe use is with the door closed. If the door is stuck partway up, pulling the release transfers the entire weight to the broken spring system in one motion, and the door can slam to the floor. That is the single most common way a broken spring turns into an injury.
Extension Springs Are Their Own Hazard
If your door runs on extension springs along the tracks, look for a containment cable threaded through the middle of each spring. That cable is what keeps a snapped extension spring from launching across the garage. Older doors on the coast frequently do not have them, and adding a pair is inexpensive work we do on the same visit. Never lift a door with an uncontained broken extension spring dangling, and never reach past one.
Get It Fixed Instead
Almost nobody who lifts a door by hand needed to. Broken springs are the most common call we run, our trucks carry the standard wire sizes and lengths, and most calls are diagnosed and finished in the same visit in under an hour. A single torsion spring runs $250 to $350 installed and the matched pair runs $350 to $500. The full breakdown, including why we recommend doing both at once, is in our garage door spring replacement cost guide.
The diagnostic is waived with any repair, you get a written quote before work starts, and the quote you approve is the invoice. Service details are on our garage door spring repair page, and if the door failed overnight or left the house standing open, that is a 24/7 emergency garage door repair call. We run garage door spring repair in Brunswick, garage door spring repair in St. Simons Island, and the rest of the coast out of one shop on Rose Drive.
One last thing worth knowing: on the Georgia coast, springs rarely fail alone. Salt air rusts the coils and the drums together, so the cable and bearing check we run during a spring swap is not upselling, it is the reason the next spring lasts its full cycle count. More on that in how garage door springs work and why they break.