The Symptom
The door won't budge, or it only goes up a few inches before the opener strains and quits
Sometimes you hear a bang from the garage overnight - that's the spring letting go. On a double door, one spring can still be holding, which is worse: the door comes off track crooked and can drop fast when it finally gives.
Most of what we see on service calls fits a pattern tied to the housing stock in this part of New Jersey
A large share of homes here were built between 1938 and 1996, with a median build year around 1958. That means a lot of original torsion hardware, undersized for the door weight it's been carrying for six decades, or extension springs with no containment cable - a setup that was phased out of code for a reason.
If your door feels heavier than it should when you lift it by hand with the opener disconnected
That's the spring losing tension before it snaps outright. Don't wait on that. A spring under partial tension is more dangerous to work around than one that's already broken, because it can release without warning while someone's reaching for the manual release cord.
How We Fix It
We don't patch a spring - we replace it, and we replace both springs on a double-spring door even if only one broke. The other one is usually close behind, and running a mismatched pair just transfers the strain to the opener and the cables.
First we check the door weight and measure the drum and wire size against what's actually installed, because a lot of these older systems were sized for a different door than the one currently hanging there - a heavier insulated replacement door on original 1960s hardware is a common mismatch we find. We set spring tension by hand, not by eye, and we check the cables, rollers, and track alignment while the door is open, since a spring failure often takes a roller or cable with it.
We use torsion springs rated for the cycle count and door weight on the job, with a safety cable on any extension spring setup where torsion conversion isn't the right call for that door. Once it's tensioned, we run the door through a full cycle under power and manually, and check the opener's force settings - a spring replacement changes the balance point, and an opener left on old settings will burn out trying to compensate.
Why This Fails Locally
Two things stack up against springs in this area: age of housing and winter cold. With median construction around 1958 across most of the 156 named areas in this service territory, a huge number of garages still have original or first-replacement spring systems that have simply outlived their cycle rating - torsion springs are rated for a set number of open-close cycles, not years, and a 60-plus-year-old spring has usually burned through that count even on a door that's never been touched for repair.
The cold matters too. This area sits in a severe cold climate band, and steel contracts in winter. A spring that's already near the end of its life is far more likely to snap on a 10-degree morning than a mild one, because the metal is stiffer and less forgiving right at the moment it's under full load from a cold start. We get more spring calls in deep winter than any other season, and it's rarely a coincidence.
One limitation worth saying plainly: if the door itself is original 1950s or 60s wood or steel and already sagging or rusted through, a new spring won't fix the underlying problem. At that point you're better off pricing a door replacement than sinking money into hardware for a panel that's failing on its own.
The Cost of This Job
Spring repair cost depends mostly on three things
Single or double spring, torsion or extension setup, and whether the cables, rollers, or drums also need replacing because they took damage when the spring broke. We won't quote a number here because it genuinely varies call to call, but we'll give you a firm price before any work starts, not an estimate that moves once we're on site.
What we can tell you is what drives the price up
A door that's heavier than standard because of added insulation, a drum or shaft that's rusted and needs replacing along with the spring, or a double door where both springs and both end bearings are original and worn. What keeps it reasonable: catching a spring before it breaks and takes the cables or an opener gear with it, which is why we ask about that heavy-lift feeling on the phone before you're stuck with a dead door.
