Will your garage door springs survive the first freeze?

There is a week every autumn, usually somewhere in the first half of October, when the phone does not stop. The first properly cold morning arrives, people press the remote on their way to work, and the door goes up six inches and stops. Or it does not move at all, and there is a bang from the garage that the whole house heard the night before.

It looks like the cold broke the spring. It did not, quite. The cold was the last straw on a spring that had been running out of life for months, and that is genuinely good news, because it means the failure was visible in August if anyone had looked.

Why springs break in October and not in July

A garage door spring is a counterweight. The door on a typical double garage weighs somewhere between 150 and 250 pounds, and the spring is wound to carry almost all of it, so that the opener only has to guide the door rather than deadlift it. When the spring is healthy, the door feels almost weightless by hand. When the spring is tired, the door quietly gets heavier, and everything else in the system starts absorbing the difference.

Three things happen at once on the first hard freeze here, and they stack.

The steel itself gets less forgiving. Spring steel loses a little ductility as the temperature drops, so a spring carrying an existing micro-crack, which is how spring fatigue actually presents, is more likely to propagate that crack into a full break on a cold morning than on a warm afternoon. The crack was already there. The cold chose the moment.

The grease stiffens. An unheated garage at six thousand feet swings hard between afternoon sun and an overnight freeze, and the lubricant on the coils, bearings, and rollers thickens overnight. The door needs more force to break away from rest, and the spring supplies that force.

And the door often gets physically stuck. Meltwater runs under the bottom seal during the day and freezes to the concrete overnight, so the first cycle of the morning is not lifting a door, it is tearing a door off the slab. That shock load goes straight into the spring and the cables.

None of this breaks a spring with life left in it. It finishes off one that was nearly done.

What a spring is actually rated for

Springs are not rated in years. They are rated in cycles, where one cycle is the door going up and coming back down once.

The standard spring fitted to most new doors is rated at about 10,000 cycles. High-cycle springs, which use a different wire size and length to do the same job with less stress per turn, are commonly rated at 20,000 or more.

Turn that into a real household. A family that leaves in the morning, comes back at lunch, comes home in the evening, and goes out once more is doing four cycles a day, which is roughly 1,460 a year. At 10,000 cycles that is about seven years. A household that treats the garage as the front door and cycles it eight times a day gets three or four years out of the same part. A retired couple with one car might see fifteen.

So the honest answer to "how old are my springs" is a question about how much the door gets used, not about the calendar. If your door is on original springs and you have been in the house seven or eight years with a busy family, you are not being pessimistic by checking. You are on schedule.

The one check worth doing, and it is safe

This is the balance test. It touches nothing under tension and it tells you more than any visual inspection.

Close the door. Unplug the opener, or switch off the breaker for it, so nothing can start while you are working. Pull the emergency release cord, which is the red handle on the trolley, to disconnect the door from the opener. Then lift the door by hand, slowly, to about waist height and let go.

A door with healthy springs will feel light for its size, will move smoothly, and will stay roughly where you left it. That is the whole point of the counterweight.

A door with worn springs will feel heavy, will want to run away from you downward, and will slide or slam back to the floor when you let go. Some doors do the opposite and shoot upward, which means the springs are over-wound for the current door weight. Both are out of balance, and both mean the opener has been compensating.

When you are done, lift the door back to closed, reconnect the trolley, and restore power. If the door felt heavy, stop using the opener beyond what you have to and book the work, because every further cycle is now being carried by a motor that was never designed to carry it. That is garage door spring repair in Colorado Springs, and it is the most common job on this van.

Five things you can see from the floor

None of these require a ladder or a tool. Look before the cold does the deciding for you.

• A gap in the torsion spring. Look at the spring on the shaft above the door. It should be a continuous coil. A two-inch gap partway along means it has already snapped, and the door is now running on borrowed time or on a second spring doing double duty.
• Rust, or a stretched-looking section. Coils that are visibly further apart in one stretch than another, or a spring with orange bloom on it, are both telling you the same thing about remaining life.
• Cable slack. The lift cables running down each side of the door should be taut when the door is closed. A cable hanging loose, or one that has jumped off its drum, usually follows a spring problem rather than causing it.
• The door sitting crooked. A door that closes with one side touching the floor before the other, or that leaves a wedge of daylight along the bottom, is out of balance.
• An opener that groans or hesitates. The motor sound changes before the spring fails. If the opener strains at the start of the lift, or the door judders on the way up, the spring is no longer carrying its share. Telling an opener fault from a spring fault is a separate walk-through, and worth reading if you are not sure which one you are hearing.

Where the line is on doing this yourself

The balance test above is safe. Replacing the spring is not, and this is the one place in this trade where the warning is not liability boilerplate.

A torsion spring on a double door holds a few hundred pounds of stored energy wound into a bar. Releasing it needs correctly sized winding bars and a technique for controlling the bar through each quarter turn. Using a screwdriver or a piece of rebar instead, which is what most improvised attempts use, is how people lose fingers and take a steel bar to the face. Extension springs, the ones running alongside the horizontal tracks, are no better: they store the same energy in a straight line, aimed down the length of the garage.

There is a second reason beyond the obvious one. Springs have to be sized to the door. Wire diameter, inside diameter, length, and wind direction all have to match the door's actual weight, and a spring that is merely close produces a door that is out of balance from day one and an opener that wears out early. Replacing a spring with the nearest thing on a shelf is not a repair, it is a slower version of the same failure. If you want the detail of how that sizing is done and what a visit includes, see what a spring visit covers.

Springs are also replaced in pairs on a two-spring door, even when only one has broken. They have taken the same number of cycles, so the surviving one is days or weeks behind its twin, and doing one twice costs more than doing both once.

Why September is the month to deal with it

This is the practical part. A spring that fails in October fails at the worst possible moment: a cold morning, a car trapped inside, and a house that needs to be somewhere. A spring replaced in September is a scheduled appointment on a mild afternoon with the car parked outside.

The work is the same work. The difference is entirely in whether you chose the timing or the weather chose it for you. September is also when the rest of the system can be sorted in the same visit, because the things that shorten spring life are the same things that get checked at a maintenance and tune-up visit: balance, cable condition, roller wear, bearing play, and the opener's force settings. A door that is properly balanced going into winter puts less strain on every part of itself all season.

If you want the longer view of what this climate specifically does to a door over the years, freeze-thaw and dry altitude compared with salt and lake-effect damp covers the wear patterns we see here against a wetter climate.

The short version

Springs wear by cycles, not years. Run the balance test with the opener unplugged and the trolley released, and if the door will not stay put at waist height, the springs are done regardless of how they look. Check for a gap in the coil, slack cables, and a door that sits crooked. Do not attempt the replacement, and do not replace only one of a pair. Book it in September and it is an appointment; leave it to October and it is a rescue.

Frequently asked questions

How long do garage door springs last in Colorado?

Between four and ten years for a standard 10,000-cycle spring, depending almost entirely on how many times a day the door runs. Altitude and cold do not shorten the rated life directly, but they do mean a spring near the end of its life tends to fail on a cold morning rather than a warm one. High-cycle springs rated at 20,000 or more roughly double the figure.

My door still opens, so can the spring wait until spring?

If the balance test says the door is heavy, no. A door that still opens is being lifted by the opener rather than the spring, and that is the sequence that turns a spring job into a spring, cable, and opener job. The door working is not evidence that the spring is fine; it is evidence that something else is covering for it.

One spring broke and the other looks fine. Do both really need replacing?

On a two-spring door, yes. Both springs have taken exactly the same number of cycles, so the intact one is at the same point in its life as the one that just snapped. Replacing it now costs one visit. Replacing it in six weeks costs two.

Is it the cold that breaks springs, or the age?

The age, and the cycle count. Cold weather is the trigger rather than the cause: it stiffens the grease, makes the steel slightly more brittle, and sometimes freezes the door to the slab, all of which add load to a spring that was already close to the end. A spring with life left in it goes through a Colorado winter without complaint.

Can I still get the car out if the spring breaks?

Sometimes, but be careful about how. With the spring gone, the door carries its full weight with nothing counterbalancing it, so pulling the release cord and lifting by hand means holding 150 to 250 pounds that will drop if it gets away from you. If the door is already partly open, do not stand or drive underneath it. It is better to leave the car where it is and get the spring dealt with than to risk the door coming down on it.