How We Fix It
The most common call from San Martin is a door that won't lift past waist height, then drops when you let go of the handle. That's a torsion spring at half-tension, and it shows up here more than in newer subdivisions because San Martin's houses, built mostly in the mid-1970s, run one year behind the median for this whole service area, the doors on original 1974 track hardware are still often first-generation torsion setups, not the extension-spring conversions that came later. Once a spring on that hardware goes, the second one is usually close behind, since they were wound and installed together and carry the same fatigue cycles.
We replace both, size the new springs to the door's actual weight rather than swap in a stock size, and check the drums and cables for wear while the door's open. On these older jambs we also find bent track from someone trying to force the door up by hand, so we true the track before we set tension. We don't patch a cracked drum or a frayed cable, those get replaced, not taped, because a failure under tension is the one call nobody wants twice.
How to Book
We run this route out of Morgan Hill, four miles up the road, so booking a job in San Martin doesn't add a special trip charge or a different crew, it's the same techs who work the rest of the service area, just a short drive further out. Call and tell us the door's age if you know it (most in San Martin date to the early-to-mid 1970s) and whether it's a single or double door; that alone tells us which spring size to load on the truck before we leave.
We book by phone, not by an online calendar, because spring jobs need a few questions answered before we can quote parts. See garage doors in San Martin for what we cover in this town, or garage door service out of Morgan Hill for how the same crew handles the rest of the area.
What You Pay
We don't post a flat price here because spring size, door weight, and how much of the original 1974-era hardware is still on the door all change the number. What we can tell you: San Martin's median household income, at $156,292, runs above the $152,452 median for the wider service area, and that shows in what people choose to spend on, most owners here go for a full torsion spring replacement plus new nylon rollers rather than a spring-only patch, since the rest of the hardware on a fifty-year-old door is usually due anyway.
If your door is one of the rarer newer builds in San Martin, the job is simpler and cheaper because the hardware is code-current and parts are common stock. We quote on site before any work starts, not over the phone, since guessing at spring weight over a phone call is how you end up with the wrong tension on a fifty-year-old door.
How Long It Takes
A straight spring replacement on a San Martin door, once we're on site, usually runs under two hours start to finish, including balancing the door and testing the opener's force settings against the new spring weight. Track truing or drum replacement on the older 1974-era hardware adds time, since those parts aren't always a straight swap-in and sometimes need adjustment to fit jambs that have settled over fifty years.
We travel from Morgan Hill, so the time you wait for us to arrive depends on the day's route, not a stated response window, we don't quote a fixed arrival time we can't back up. Same-day service is common but not something we promise on the call. If a part isn't on the truck, that's a second trip, and we'd rather tell you that upfront than pretend otherwise.
The Symptom
The door groans, jerks up in stages, or reverses itself halfway through the opener's cycle. On San Martin's older houses that's almost always the torsion spring losing tension unevenly across a door that's heavier than its original 1974 hardware was ever tuned for, insulated panels added later, or a second layer of interior wood paneling, push the door's real weight well past what a fifty-year-old spring pair was wound to lift.
Some owners hear a bang from the garage before any of this starts; that's usually the spring finally letting go rather than fading out. A door that won't budge at all, opener motor humming, is a different problem, usually a broken cable or a jumped drum, and forcing the opener at that point just burns out the motor gear. Neither fault fixes itself, and both get worse the longer the door keeps cycling.
What Causes It Around Here
San Martin sits in a moderate-heat climate band, which is kinder to garage doors than the coastal damp closer to Watsonville or the fog belt out toward Aptos, but it still cycles a fifty-year-old door through enough daily heat swings to work threaded fasteners loose and dry out the original grease in torsion drums. Add houses that were built between 1957 and 1980 across this whole service area, most in the 1960s-70s, and San Martin sits right in that band at 1974, which means original one-piece doors on side-mounted torsion hardware, the parts nobody stocks new any more.
With just over two thousand households in San Martin, most on that same building cycle, it's less a matter of if the spring goes than when, and we see it most in late summer when the heat has had all season to work on the metal.
Other services in this area
Questions, answered
Why does my garage door feel heavier than it used to?
On a San Martin house built in the 1970s, the door's real weight has usually crept up over the years, insulated retrofits, a second layer of panel, or just accumulated grime on the tracks. The spring was wound for the door's original weight, not what it carries now, so it loses lift capacity even before it technically fails.
Do you have a branch in San Martin?
No. We work out of Morgan Hill, about four miles away, and San Martin is part of the same route as the rest of the service area. There's no separate crew or depot here, just the same techs driving out.
Is it worth repairing a door this old instead of replacing it?
Depends what's failed. A spring, cable, or roller replacement on a 1970s door is usually worth it if the panels and track are still straight. If the frame's rusted through or the track is badly bent, a new door often costs less over time than repeated hardware fixes, we'll tell you straight which side of that line your door is on.
Can I just replace one spring instead of both?
On San Martin's original torsion setups, both springs were wound and installed as a pair and carry the same wear. Replacing one and leaving a decades-old spring on the other side means it usually fails within months, so we replace both at once.
Tell Us What the Door Is Doing
Call and we'll ask a few questions before a truck leaves, then give you a straight answer on repair versus replace.