Mountain View, Sunnyvale
34,933 households in Mountain View, most built around 1974 with torsion springs rated for 10,000 cycles that are now well past due. We drive the 3 miles from Sunnyvale to fix them.
Pricing
With 34,933 households in Mountain View, spring failure isn't rare here, it's routine math: a torsion spring rated for roughly 10,000 cycles wears out after about seven to ten years of normal use, and a lot of this town's garage doors have been cycling since the 1970s.
We don't have a Mountain View-specific price list to hand you, and we won't invent one. What we can tell you is that the job scope is simple and doesn't vary much house to house: one or two torsion springs, sometimes the cable drums if a cable frayed when the spring let go, occasionally a center bearing plate if it's seized from age.
We quote the job after we look at the door, not off a phone guess, because spring size and wind depend on door weight and the track setup, both of which differ even within a single subdivision.
Mountain View's median household income runs higher than some of the towns we cover, and we've found that doesn't change what the repair costs - springs are springs. It does mean more owners here ask us about upgrading to a heavier-duty spring when we're already in there, which is a fair question to ask once the old one is off.
The repair
The median house in Mountain View went up around 1974, a few years newer than the broader area's 1964 median, and that decade of garage door hardware has a particular profile: torsion springs mounted on a single center shaft above the door, often paired with steel sectional doors that were already standard by then.
We pull the old spring, check the shaft and bearings for wear, check the cable drums and the cables themselves since a snapped spring often takes a cable with it, and replace with a spring matched to the door's actual weight and wind.
We don't just grab what's on the truck and wind it to spec on paper; we test the door balance after, because a spring that's technically right but not balanced right will just wear the opener out early.
One thing we don't do: we don't recommend replacing a sound door just because the spring failed. If the door itself is still square and the track is straight, a new spring is the whole job.
Timing
We work out of Sunnyvale, about 3 miles away, so getting to a Mountain View call isn't the long part of the job. The spring swap itself is usually the quick part too, once we're on site with the right spring size - this is bread-and-butter work on the kind of 1970s-built sectional doors common across this town. What takes longer is diagnosis when the spring isn't the only thing wrong, which happens more on older installs where the center bearing or the shaft itself has been quietly wearing down alongside the spring for years. Mountain View's mild year-round temperate climate is actually a point in our favor here - we don't see the swelling, sticking, or ice-related binding that colder-climate garage doors deal with, so a spring job here is rarely tangled up with a weather-driven door or track problem. That keeps most calls to a straightforward, single-visit repair rather than a multi-part fix.
Watch-outs
The main risk with a torsion spring job on a door from the 1970s stock common in Mountain View is a second spring that looks fine but is actually close behind the one that broke - they're usually installed in pairs and wear at close to the same rate, so we check both even when only one has snapped. Cables are the next thing: a spring that lets go under tension can kink or fray a cable on its way down, and a weak cable left in place is how a door comes off track weeks later. On older torsion setups we also see seized center bearings from decades without lubrication, which won't stop the repair but will shorten the life of the new spring if we don't deal with it while we're in there. Our honest limitation: we don't carry every obscure spring size on the truck, so if a door has a nonstandard or discontinued torsion spring, that can mean a short delay while we source the right part rather than a same-visit fix.
Questions
Torsion springs fail by fatigue, not by one bad event - they're rated for a set number of open-close cycles, usually around 10,000, and once a spring hits that count it can snap on an ordinary day. A lot of Mountain View's garage doors date to the 1970s, which puts plenty of original or long-serving springs well past that number.
Most of the time, yes - 1970s-era torsion setups are common enough that we stock the usual sizes. Occasionally a door has a nonstandard or discontinued spring, and that can mean a short delay to source the right part instead of a same-visit fix.
No. Without the spring, the full weight of the door rests on the opener and the cables, which aren't built for that load. Leave the door down, don't force it by hand, and call for the repair rather than working around it.
If the door runs on a pair of torsion springs, which most sectional doors do, we check both even when only one has broken. They're usually installed and wound together and wear at a similar rate, so replacing just the broken one often means a second failure not long after.
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Sunnyvale Garage Door Pros repairs and installs garage doors, springs and openers in Sunnyvale, CA and the surrounding area.
