South San Francisco, Alameda
Broken torsion spring on a 1960s South San Francisco garage door? Alameda Garage Door Pros drives 9 miles to fix springs built for older single-door hardware.
Local causes
The fault we see most in this town is a single torsion spring doing a job it was never sized for. Builders working through the 1960s often ran one spring across a double-wide opening instead of two, because it was cheaper and the doors themselves were lighter than what gets installed today. That spring has been winding and unwinding on every open and close for sixty years, and when it finally lets go, it goes all at once - a loud bang, then a door that won't budge or crashes down fast.
South San Francisco's median home dates to 1963, which puts most of the housing stock squarely in that single-spring, lighter-door era. The torsion hardware on these garages was never rated for the heavier insulated panels a lot of owners have added since, which shortens the spring's working life even further. A spring that might last fifteen years on a lighter original door can wear out in half that time once the panel gets upgraded and the hardware doesn't.
Pricing
We don't publish a flat number for this job because the price moves with door width, spring type, and whether one spring failed or both are near the end.
A single-car door with one torsion spring costs less than a double-wide running two. What we can say: South San Francisco's median household income runs at $135,909, noticeably below the $163,199 average across the wider Alameda service area, which is worth factoring in before comparing a quote here to one from a neighboring suburb.
The honest limitation: if your opener, track, and cables are also original to a 1963 build, a spring swap alone may not be the right call. Replacing a spring on hardware that's failing elsewhere just means a second call sooner than you'd like. We'll tell you when a full hardware refresh makes more sense than patching one part.
Job timing
We work out of Alameda, nine miles from South San Francisco, so there's no local branch here and no in-town response time to promise. The drive is part of the job every time, which is simply the trade-off of a company with one shop covering a wide service area rather than a storefront on every street.
Once on site, a straightforward spring replacement is a contained job - get the door secured, pull the old spring, wind the replacement to the right tension, and test the balance through a few full cycles. Doors with one spring move faster through this than doors running two, since there's only one side to pull and reset.
Symptoms
The telltale sign is a door that suddenly feels twice as heavy, or won't lift past a few inches before the opener strains and stalls. Some owners hear the spring go before they see it - a sharp crack or bang from the garage, usually when nobody's even using the door. After that, the cables often go slack on one side and the door can hang crooked in the track.
On a house built around 1963, that single spring carrying a double door has usually been stretched far past any reasonable service life by the time it snaps. Don't try to force the door open or run the opener through it - that's how a cable jumps the drum or a panel gets bent on the way down.
Questions
Torsion springs fail by cycle count, not by giving advance notice. On a South San Francisco home built around 1963, the original spring has likely gone through decades of daily cycles past its rated life, so the last cycle before it snaps looks identical to every one before it.
No. We're based in Alameda, about nine miles away, and drive out for jobs rather than running a branch location in South San Francisco. That distance is built into scheduling, not something we can promise around.
If your door runs two springs and one broke, the other is usually close behind on the same cycle count. We'll look at the age and wear of the second spring on site and give you a straight answer rather than replacing a part that's still got life left.
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Alameda Garage Door Pros repairs and installs garage doors, springs and openers in Alameda, CA and the surrounding area.
