What does it mean when my garage door suddenly feels extremely heavy to lift?
When a garage door suddenly feels extremely heavy, the springs have almost certainly failed. The springs carry the weight of the door — when one breaks, you are lifting the raw weight of the door itself, which on a double door is a great deal more than most people expect.
Phones answered around the clock · free estimate
The one thing that changes the answer is timing. If the weight came on gradually over months, the springs may just be fatigued and losing tension rather than snapped. If it happened between one use and the next — often after a bang from the garage — a spring has broken, and the door should stay down until a technician looks at it.
Why it happens
A garage door is counterbalanced. A torsion spring above the opening, or extension springs along the tracks, stores enough tension to offset the door's weight so it feels nearly weightless by hand and so the opener only has to nudge it. Take that tension away and nothing is holding the door up but you.
Springs wear by cycles, not by years. Every open and close is one cycle, so a household that runs the door eight or ten times a day gets through springs far faster than one that uses it twice. That is why a spring can break on a door that is only a few years old, and why a rarely used door can go a long time.
Cold weather often finishes the job. Steel contracts and gets a little more brittle, so a spring that was already near the end of its cycle life tends to let go on the first sharp cold morning. The cold did not cause the failure — it picked the moment.
There is a second possibility worth naming. A snapped lift cable, or a door that has come out of its track, can also make the door feel heavy, jam, or sit crooked. Both are handled the same way: leave the door alone and have a pro look at it.
What you can check yourself
- Look at the spring above the doorStand clear and look at the shaft above the opening. A torsion spring that has broken shows a visible gap of an inch or two where the coil separated, and the two halves often look slightly unwound.
- Look along the tracksOn doors with extension springs, the springs run parallel to the horizontal tracks. A broken one hangs limp or stretched out of shape compared to its partner.
- Check the cables with your eyes onlyA cable hanging loose, kinked, or pooled on the floor tells you the same story. Do not pull on it or try to seat it.
- Listen for what happenedA single loud bang from the garage, with no obvious cause, is the classic sound of a spring letting go. People often mistake it for something falling off a shelf.
- Leave the opener aloneRunning the opener against a broken spring can strain the motor and the gears, and the door can drop. Stop using the door and park outside until it is repaired.
When to call a technician
Call once you see a gap in a spring, a loose cable, or the door simply will not stay up. Torsion springs hold extreme tension even after they break, and this is not a homeowner repair — people get hurt trying to force or prop the door. Do not pull the emergency release and try to muscle it up by hand either, because the door now weighs what the springs were carrying.
Spring and cable work almost never needs a building permit; a full door replacement does in some cities, and in coastal high-wind and hurricane zones the new door usually has to carry a wind rating. Your local building department decides that, so ask before ordering a door. Licensing rules vary too — the technician holds whatever license their state requires, and your state's contractor licensing board is the place to verify it. One Call Garage Door arranges the visit with an independent local technician in all fifty states. The estimate is free and the technician gives you the price before any work starts. Call (866) 394-4210.
What the technician will do
- Replace the springs in pairsSprings on a door are the same age and cycle count, so both get replaced even if only one broke. Replacing one leaves you waiting on the other.
- Size the springs to the doorSprings are matched to the door's actual weight and height, not guessed at. The wrong size leaves a door that drifts down or flies up.
- Check cables, drums and bearingsA breaking spring often takes its neighbors with it. The technician inspects the lift cables, the drums and the shaft bearings while the door is apart.
- Rebalance the doorOnce the new springs are in, the door should hold its position roughly halfway up without help. That is the test that the counterbalance is right.
- Test the opener safety reverseThe opener's reversing function is checked after the balance is set, since a badly balanced door masks a bad safety reverse.
Related questions
- Can I still open the door by hand until the repair?
- No. With a broken spring you are lifting the full weight of the door with nothing holding it up, and it can come down fast. Leave it closed and move the car out if you can do so safely.
- Why replace both springs when only one broke?
- Both springs have the same cycle count, so the second is usually close behind the first. Replacing the pair keeps the door balanced and saves a second trip.
- Does the opener need replacing too?
- Usually not. The opener was not designed to lift the door's full weight, though, so repeatedly running it against a broken spring can damage the gears. The technician checks the opener's condition as part of the visit.
- What decides the cost of a spring repair?
- Door size and weight, whether it uses torsion or extension springs, whether the cables, drums or bearings were damaged when the spring let go, and what the technician finds once the door is inspected. The estimate is free and you approve the price before work begins.
- How long do garage door springs usually last?
- It depends on cycles rather than age. A door opened many times a day goes through springs much faster than one used occasionally, which is why a newer door can still break a spring.
Get a technician out
Free estimate. The price is agreed before the work starts.
Or send us a message
Leave your details and what the door is doing, and someone from the team will call you back.
One Call Garage Door arranges the visit; the technician does the work and gives you the price.