How Long Do Garage Door Springs Last? Cycles, Years and Signs

Garage door springs do not fail at random. They wear out on a count, one open and close at a time, and you can estimate where yours stand on that count. Here is how the cycle rating works, how many years it buys at different levels of use, and what changes the number in San Diego.

What does a spring’s cycle rating mean?

A cycle is one full trip: the door opens from closed and comes back down. That is the definition in ANSI/DASMA 102, the industry standard for sectional doors, which also expects residential door systems to be designed for at least 10,000 cycles.

Standard residential springs are commonly rated around 10,000 cycles. High-cycle springs use heavier wire and a longer coil for the same door, so each cycle stresses the steel less, and they are rated for 20,000 cycles and up.

A rating is a design target, not a promise. DASMA’s technical data sheet on spring life lists what cuts it short: rust, a spring sized wrong for the door, the wrong number of turns, extra weight added to the door and skipped maintenance.

How many years is 10,000 cycles?

It depends on how often your door runs. The same standard describes a residential door as one expected to run fewer than 1,500 cycles a year, which works out to about four a day.

Treat these as ceilings. Rust, an out-of-balance door or an undersized spring takes years off them, and the longest figures assume nothing else on the door ever goes wrong.

To find your number, count a typical weekday: every time the door goes up and comes back down is one cycle. If your opener connects to a phone app, its history log does the counting for you.

Why do springs wear out faster near the coast?

Salt air rusts the coils. DASMA notes that rust reduces the working area of the spring wire and leaves corrosion pits where fatigue cracks start, so a rusty spring can break well short of its rating. DASMA also advises keeping doors closed where possible near salt water, because an open door leaves the springs exposed.

Most standard springs are oil-tempered steel. Galvanized springs resist rust, but galvanized wire is less flexible, which can shorten cycle life. A coated oil-tempered spring is the usual middle ground near the water.

Within a mile or two of the ocean, in Ocean Beach or Imperial Beach, springs often show rust scale years before they reach their count. Inland, in Santee and El Cajon, rust is rarely what ends a spring. Cycles are, so the table above tends to hold. Our coastal maintenance guide covers washing and lubricating the hardware, which DASMA also ties to longer spring life.

What are the signs a spring is near the end?

Safety first. Never unwind, adjust or remove a torsion or extension spring, a lift cable, a cable drum or a bottom bracket. Never run the opener with a broken spring or a snapped cable, and keep people out from under a door that is crooked or jammed. Every sign below is something you see or feel, not something you adjust.

• The door feels heavier. Lifted by hand with the opener disconnected, it takes more effort than it used to.
• It will not stay put halfway. A balanced door holds at about halfway. One that drifts down has springs losing tension. The balance test is step 5 of our safe checklist.
• The opener strains. It slows near the top, labors, or lifts the door a few inches and reverses.
• Gaps and sag on extension springs. With the door open, extension springs should pull up short with their coils close together. Springs that stay stretched, with gaps between the coils, or a door that rises with one side lagging, mean worn springs.
• Rust scale or a squeal from a torsion spring as it winds.
• A gap of about two inches in a torsion coil means it has already broken. Leave the door closed and see the broken spring symptoms.

A door that has turned heavy to lift by hand is the most common of these, and it is worth a visit before the bang.

When does a high-cycle spring pay for itself?

Most of a spring bill is the visit and the labor to let down and rewind the system. Choosing high-cycle springs adds the difference in parts, not a second visit, so the question is simple: will standard springs wear out again while you own the house?

• Usually worth it: six or more cycles a day, a heavy insulated or wood door, or a plan to stay seven years or more.
• Usually not: two cycles a day, where a standard spring already runs past a decade.

In Poway, families who use the garage as the front door are the classic case for high-cycle springs. Typical market prices for both are in our spring replacement cost guide.

Why are both springs replaced together?

On a two-spring door, both springs went on the same day and have made the same number of cycles. When one breaks, the other is close behind. DASMA’s homeowner safety tips say it plainly: if your door has two springs, replace both, even if one is not broken. A matched pair also keeps the door balanced. The job itself is on our spring replacement page, and torsion vs extension springs explains which system you have.

Across San Diego

Many 1990s and 2000s tracts, like Carmel Valley, went up with standard springs rated around 10,000 cycles, so the original springs there have long since used up their count or been replaced once already. Older inland homes on extension springs wear on the same clock, along with the pulleys and cables beside them. A yearly tune-up catches a tired spring while it is still a scheduled job.

Next step

If your door is heavy, drifting or straining the opener, book spring replacement and send a photo of the springs from the floor. Tell us roughly how many times a day the door runs, and we will tell you whether standard or high-cycle springs make sense for it.