Symptom check
I can barely lift the garage door by hand
A garage door that is too heavy to lift by hand has springs that broke, lost their tension or never matched the door's weight. Stop lifting it: the cure is springs sized to the door, and the opener cannot make up the difference.
Updated
Set the door down and stop lifting
Do not keep straining to raise the door, and do not leave it propped partway open. A door you can barely lift is carrying weight the springs should be holding, and if your grip or footing slips it comes straight down. Ease it closed if it is already moving, leave the opener disconnected, and call before anyone uses the door again.
What usually causes it, in order
A heavy door is a spring problem until proven otherwise, and the only question is which kind.
- Most common
A spring that broke
What you notice: A torsion spring above the opening shows a split coil, or an extension spring along a track hangs slack.
The repair: Fit a new spring, or a matched pair, for what the door weighs, wound to the right number of turns. Garage Door Spring Replacement, from $245
- Common
Springs that have lost their lift
What you notice: Every coil looks whole, but the door has grown steadily harder to raise and sinks when you let go of it partway up.
The repair: Fit fresh springs matched to the door; extra turns on worn steel trade a few months of lift for an earlier break. Garage Door Spring Replacement, from $245
- Common
The wrong springs fitted at some point
What you notice: The door has never felt right after an earlier repair, or the two springs on the shaft differ in length or wire thickness.
The repair: Measure and weigh the door, then fit springs of the right wire, inside diameter and length, wound in the correct direction. Garage Door Spring Replacement, from $245
- Less common
A door made heavier after it was hung
What you notice: Insulation panels, a new section, a row of windows or a heavier replacement door went in, and the springs stayed the same.
The repair: Weigh the door in its current form and replace the springs with a size that carries the new weight. Garage Door Spring Replacement, from $245
- Less common
Rollers, hinges or track that bind
What you notice: Nothing on the spring shaft looks broken, and the door moves easily in places, then grinds or catches at the same spots.
The repair: Replace worn rollers and hinges and true the track so the door runs freely. Garage Door Roller and Hinge Replacement, from $195
Safe checks before you call
These are checks with your eyes and your memory, and none of them involves lifting the door.
- Look at the torsion spring or springs above the door for any coil with a gap.
- Where the springs run along the side tracks, check that each is attached and has a safety cable through it.
- See whether the two springs on the shaft match in length; a mismatched pair suggests an earlier mix-up.
- Think back: has insulation, a window section or a new door gone in after the springs were last replaced?
- Look along both tracks for a roller out of line or a dent the door might be dragging over.
What a balanced door feels like
A balanced door feels light all the way up and, with the opener disconnected, stays put when let go of about halfway open.
That is the balance test, and it describes a healthy door. It is not a test for a door you can barely lift: the weight has already answered the question, and holding a heavy door at halfway puts you under a load the springs are not carrying. We run the test at the end of every spring job, with the new springs wound, to confirm the turns are right.
If a door sinks from halfway, the springs are short of lift. If it climbs on its own, they are wound too tight, which brings its own risk: the door can fly up and the cables can jump their drums.
Why springs lose their lift over the years
Springs lose lift gradually because the steel relaxes a little with each cycle, so a door that was easy at move-in can be a struggle ten years later.
The usual rating is about 10,000 open-and-close cycles, and the loss is slow enough that nobody notices until the power fails and someone has to raise the door by hand. Long outages like the ones after the January 2024 arctic front and ice storm are often when a family first finds out how heavy the door has become.
When the door itself got heavier
A door gains weight whenever something is added to it, and springs sized for the bare door fall behind from that day on.
Insulation kits for a garage gym or shop, a replacement section, a window row or a heavier new door hung on the old springs all change the load. Wood doors shift through the year as well: outdoor wood in this climate takes on moisture through the wet months, so a wood door weighs a little more in December than in July.
When we size springs, we weigh the door rather than trusting whatever was on the shaft, then choose a spring whose wire, inside diameter and length carry that weight through its full travel.
Why the opener should not be left to carry the load
An opener is built to move a balanced door, not to hoist dead weight, so a heavy door wears it out quickly.
The strain lands on the drive gear, the motor and the bracket on the top section, and turning the force setting up to compensate also blunts the reverse protection that keeps the door from crushing something. Fix the springs first, then judge the opener: one that labored for months may need a gear, but it often runs fine once the door is light again.
Door too heavy to lift: questions and answers
How do I check if my heavy garage door is balanced?
If it is already hard to lift, skip the test, because the weight is your answer and the springs need attention. On a door that lifts easily, the check is simple: starting from closed with the opener disconnected, raise it to about halfway and release it. If it stays put, it is balanced; if it drifts down or climbs, it needs spring work.
How heavy should a garage door feel when I lift it by hand?
It should feel light at every point in its travel, easy to raise with one hand on the handle. The springs are sized to carry nearly all of the weight, so a properly balanced two-car door does not take your back or your legs. If you need both arms and a hard pull, the springs are short of lift.
Why do garage door springs lose tension and make the door heavy?
Steel relaxes slightly with every open and close, so springs give back a little less lift each year. A standard spring is good for roughly 10,000 cycles, and a damp garage that rusts the coils shortens that. The door gets heavier so gradually that most people only notice when they have to lift it by hand.
Can adding insulation make my garage door too heavy to lift?
Yes. Insulation panels, a new window section or a heavier replacement door all add weight the old springs were never sized for. The opener may still move the door while it feels heavy by hand. Weighing the door and fitting springs for the new weight puts it back in balance and takes the load off the opener.
Will a garage door that is too heavy damage my opener?
Over time, yes. An opener moving a heavy door works its drive gear, motor and top bracket far harder than it was built for, and raising the force setting to help it also weakens the reverse protection. Replace or resize the springs first, then see whether the opener still struggles before buying a new one.
Can an opener lift a garage door with a broken spring?
Sometimes for a few inches, and that is the trouble. Many openers will strain the door partway up before the force limit stops them, bending the top section and wearing the gear on the way. Even when one manages a full trip, it is carrying a load it was never meant to hold. Unplug it until the spring is replaced.
Where to go next
Nearby service areas
This call comes in from Landover-Sharmel, Oakbrook and Burton Ridge, Venersborg and the rest of our Washington service area.
Want a price before anyone drives over?
Call and describe what the door is doing, or text a photo of the door and the spring above it. You hear the likely repair and where its price starts, then decide.