How long do garage door springs last?

The short answer

Garaga, one of the Canadian manufacturers whose doors we install, states that springs generally offered on the market have a service life of 10,000 cycles, "representing more than 13 years of operation at 2 openings per day", and that ordering 20,000 to 25,000-cycle springs will double the lifespan.

Source: Garaga, The Secrets of Garage Door Torsion Springs and the cycle-count FAQ. Checked 31 August 2026.

So the honest answer to "how long will these last" is: divide the cycle rating by how many times a day the door actually moves.

Those are arithmetic, not a warranty. Count honestly: a two-car household where the garage is the front door is easily six to eight openings a day, and teenagers make it worse.

Why the number is a ceiling, not a promise

A cycle rating is what the spring can do under ideal conditions. DASMA, the trade association whose members manufacture these doors, publishes a data sheet on exactly what pulls the real number down. It groups the causes into handling, installation and use.

Handling, before it ever reaches your door

• Dropping or throwing a spring. DASMA warns that "even a seemingly minor nick or notch could provide a weak point in a spring, compromising its intended performance", and that a dropped torsion spring can crack the cast fittings on its ends.
• Storage. Springs kept damp develop surface rust, and "rust reduces the effective area of spring wire, which in turn reduces its overall strength", as well as creating corrosion pits from which fatigue cracks accelerate.
• Torch-cutting to length without shielding the adjacent coils, which creates brittle spots.

Installation, which is where most of the damage is done

• The wrong spring for the door. DASMA notes that a spring which does not meet a door's counterbalance requirement can reduce the cycle life of the door assembly and the opener, and can create a safety issue with manual operation.
• The wrong number of turns. Too much torque overloads the rest of the counterbalance and is dangerous to apply; too little leaves the door "drifting down from its open position over time".
• A door heavier than the springs were sized for. This includes weight added later. DASMA specifically names applying paint and adding components to the door as ways the weight can pass the manufacturer's specification.
• Improper stretch, which leaves the coils scraping against each other on every cycle, or lets the spring snake and rub.

Use, which is the part you control

• Extreme climate. DASMA singles out doors left open for long periods on a regular basis, which exposes the springs to temperature, moisture and air-quality swings, and recommends that doors in climates with extreme heat or cold, frequent precipitation, or proximity to a saline coastal location be kept closed where possible.
• Corrosive environments, including chemicals containing chlorine.
• No maintenance. Regular greasing or lubrication of the springs as required by the door manufacturer "will help to maximize spring cycle life".

Source for this whole section: DASMA Technical Data Sheet #190, Factors Affecting Spring Cycle Life (PDF). Checked 31 August 2026.

What that means on this lakeshore specifically

The stretch from Burlington through Grimsby to St. Catharines ticks several of DASMA's boxes at once: frequent precipitation, repeated freeze-thaw either side of zero rather than one long steady freeze, and road salt tracked into every driveway on the corridor for four months of the year. Springs here live a harder life than the same springs would inland, which is a real argument for asking about a higher cycle rating rather than defaulting to whatever comes in the box.

Spring cycle life and door cycle life are different numbers

Worth knowing if you are comparing manufacturer claims. DASMA notes that spring cycle life "may not necessarily coincide with door cycle life", and that ANSI/DASMA 109 is the test that determines door cycle life, where failure includes "any component of the door system causing the door to cease operation". A door rated for a certain number of cycles is not making a promise about its springs.

Can you tell how much life is left?

Not precisely, and anyone who gives you a number is guessing. What is visible: rust and pitting on the coil, which shortens what is left; a spring that has visibly stretched or whose coils are rubbing; and a door that has started to feel heavier or drifts down from half open, which means the counterbalance is weakening. All three are reasons to have it looked at rather than reasons to panic.

What is not visible is the fatigue inside the wire, which is the thing that actually breaks. That is why replacing both springs together makes sense: the second one has taken the same number of cycles as the one that just failed.

The colour on the spring is not for you

Torsion and extension springs carry a painted colour code, and it is a common misunderstanding that a homeowner can use it to buy a replacement. DASMA's data sheet defining those codes says the opposite in its opening paragraph: it "is intended to be used by manufacturers in the design and fabrication of springs" and "should not be used by homeowners or maintenance personnel to replace garage door springs". The colour identifies wire diameter only. Inner diameter, length, stretch, material and finish are not encoded in it.

Source: DASMA Technical Data Sheet #171, Official Color Codes for Torsion and Extension Springs (PDF), page 1. Checked 31 August 2026.

What to ask for when you replace them

1. The cycle rating in writing. If it is not on the quote, it is not a specification.
2. Both springs on a two-spring door. Same age, same cycles, same fatigue.
3. The cables inspected while the system is apart. They wear on the same clock and the labour is already spent.
4. A balance test before the technician leaves. It is the only proof the new springs are correctly matched.