When the door starts needing help on the way up

Why does my garage door need help going up now?

A door that has started needing help on the way up almost always has a spring that has lost part of its torque without breaking. The spring carries most of the door’s weight, and as it relaxes, the opener or your arm quietly makes up the difference. It still works. It is working harder than it should, and that is the early warning for garage door spring replacement.

The door itself has not changed weight. A two-car steel door in Greenfield weighs the same this month as the week it was hung. What changed is how much of that weight the spring still takes off the opener. A healthy spring lets the opener steer the door. A tired one leaves the opener lifting a share of it, and the share grows a little with every trip.

That is why this stage is easy to miss. Nothing fails. The door goes up a beat slower, you get used to it, and the day it finally stalls it feels sudden, even though it has been coming for weeks.

What does a spring look like when it is wearing out but not broken?

A fading spring usually looks stretched rather than broken. On a torsion spring, the bar above the door, the coils start to open up and you can see daylight between turns that used to sit tight together. On extension springs along the side tracks, the spring stays partly stretched even with the door fully open. Rust along the coil is the other sign.

Look from the floor, with the door closed, and keep your hands off it. No ladder is needed for this, and none of it should be touched. A wound torsion spring is under full load whether it is fading or not.

What to look for on a torsion spring:

• Gaps between coils along part of the spring’s length, especially next to the center bracket
• A reddish or orange line running along the coil where the steel has started to rust
• One spring on a two-spring door that looks longer or looser than its partner

Extension springs are easier to read, since they run in plain sight above the horizontal tracks. With the door all the way up, a good one pulls itself nearly closed. A tired one hangs there still stretched out, coils separated, with the safety cable through its middle doing more of the visible work. Many of the older detached garages around Greenfield and Fortville still run this setup, and it is where the fading shows up earliest to the eye.

None of this tells you the day it will break. It tells you the spring is no longer holding the lift it was sized for.

Which door behaviors show up first?

The door usually tells you before the spring shows it. The first signs are a slower climb, a pause or stall in the last couple of feet, and an opener that reverses on the way up for no visible reason. A door that will not stay at the top, and drifts down on its own after opening, is further along. All of them come from the same missing lift.

In roughly the order people notice them:

1. The rise gets slower. The motor sounds the same but the door takes longer to clear the car roof.
2. A stall near the top, where the door hangs for a second before the opener finishes the pull.
3. A reverse on the way up. Openers have a force limit, and when the door gets heavy enough to hit it, the opener treats that as an obstruction and backs off.
4. A door that sinks from fully open instead of staying put. By then the spring cannot hold the full weight at the top of the track.
5. You find yourself pushing up on the bottom panel to help it along.

Cold mornings in Hancock County make every one of these worse, since cold steel and stiff lubricant add drag on top of a weak spring, and a door that struggles first thing and runs fine by mid-afternoon is a common version of this.

If you want to know whether the weight problem is the door or the opener, the release-cord hand test in the opener-not-working guide sorts that out with the door closed.

What does a weak spring do to the opener?

A weak spring shifts load onto the opener that it was never built to carry. The drive gear and trolley start lifting part of the door on every cycle, and they wear faster for it. The stripped-gear hum many people hear from an opener is often the end of this story, the gear finally giving up after months of doing the spring’s job.

In that case there are two repairs to make. A new gear kit on an opener still paired with a tired spring goes back to carrying the same extra load, and the new gear starts wearing from day one. When a technician looks at a stripped gear, checking the spring balance is part of figuring out why it stripped.

One thing not to do: turn up the opener’s force setting to get the door to the top again. That setting is part of how the opener decides something is in the way. Raise it and the door lifts again, but it will also push much harder against a car or a person before it reverses, and the spring problem is still there.

If the opener has already started to hum, grind or quit, the garage door opener repair page covers the common failures and what they cost to fix.

Can the old springs be wound tighter instead of replaced?

Adding a turn or two to a tired spring buys a little time, usually weeks, because steel that has already relaxed keeps relaxing. The door lifts better for a while and then sags again. And winding is the dangerous part of the whole job, so a re-tension carries the same risk as a replacement and still leaves the old steel in place.

A spring that has lost its lift has been worked past what it was built for. Winding it tighter asks more of that same steel. The proper replacement is a matched pair of new springs, sized to the actual weight of your door, with the balance set from scratch once they are on.

For why winding is not a homeowner job, even with the right bars, see the guide on replacing a spring yourself.

Can I keep using the door until the spring is replaced?

For a short while, with some care. A fading spring usually breaks under load, which often means with the door up or moving. Until it is replaced, stay out from under the door while it travels and stop helping it up by hand. Any cycle could be the one it breaks on, so this is a this-week repair rather than one to let ride into next season.

Some habits that make the waiting period safer:

• Wait for the door to reach the top before walking or driving under it.
• Stop giving it a push from underneath. If the spring lets go while your arms are under the bottom panel, the full weight comes down on them.
• Keep kids from riding the door or ducking under it on the way down.
• Keep the car pulled all the way in or all the way out, never parked across the threshold.

What moves this from a this-week call to a today call is any further change in the door’s behavior. A door that now reverses every time, stalls halfway and comes back down, won’t stay open at all, or climbs crooked has gone past fading. So has a spring where you can now see a gap in the coil. At that point, stop running it and leave it closed.

What does replacing tired springs cost in Hancock County?

A matched pair of torsion springs on a two-car door runs $220 - $400 installed in Hancock County, with the cables checked as part of the job. A single spring on a one-car door, older extension-spring doors included, runs $160 - $260. The exact number depends on your door’s size and weight.

The range is wide because doors are not all the same. An insulated double door takes a heavier spring than a plain single one. The full list of repair prices, including cables and rollers, is on the page for what spring replacement costs here.

Setting the door’s balance is included in that price, so once the new springs are on, the opener goes back to steering the door instead of lifting it.