The Symptom
The drive out to Tamalpais-Homestead Valley is about fourteen miles from our shop in Novato, which changes how a spring call gets handled before the truck ever leaves. There's no swinging back for a part that got left behind, so the tech loads for the job the phone call described, not a guess. That matters here because the housing stock in this pocket of Marin mostly went up around 1963, right in the middle of the 1938-to-1996 build window across the wider service area. A door from that era usually runs a single torsion spring on a shaft that was sized for a lighter, uninsulated panel. Decades on, that spring has done more open-close cycles than it was built for, and the failure looks the same every time: the door won't lift past a few inches, or it drops fast on the way down because the spring gave out and the cable is doing work it can't do alone. Some owners hear a bang first, the spring letting go while the door sits closed. Either way, by the time you're reading this the door isn't safe to run, and it shouldn't be forced.
What the Repair Takes
A torsion spring job is a swap, not a patch. The old spring comes off the shaft, we check the shaft, bearing plates, and cable drums for wear that a 1963-era door has likely picked up by now, and a correctly wound spring goes on rated for that door's actual weight. Given the drive, we bring spring stock sized for the standard torsion setups common on doors from this build era rather than betting on a single size and hoping. If the shaft or drums are worn past reuse, that gets flagged before anything goes back together, not after. We don't upsell a full door replacement on a spring call unless the door's actually there, a bent track or a delaminating panel is a separate conversation, and we'll say so plainly if we see it. Most spring jobs are one visit, one spring set, done. For anyone wanting a broader look at what a service call from Novato out here covers, that's laid out on the {tamalpais_homestead_valley_service_link}.
The DIY Question
Don't do this one yourself. A wound torsion spring holds enough stored force to break a finger or worse if it lets go while you're working on it, and there's no safe way to eyeball that without the right winding bars and a clamp. This isn't a case where a careful homeowner can save the visit fee, the math doesn't work in your favor even before you count the risk. With median household income in Tamalpais-Homestead Valley running near $238,158, well above the roughly $132,115 median across the rest of the Novato-based service area, most owners here call it in rather than try to save the difference between a professional swap and a trip to the hardware store. That's the right call regardless of budget. Where DIY does make sense is smaller stuff, lubricating rollers, tightening loose hardware, clearing a track, but the spring itself isn't a weekend project.
How Long It Takes
Once a tech is on site, a standard torsion spring replacement usually runs under an hour of hands-on work. What adds time here is the trip itself: fourteen miles from Novato means the window between the call going out and the truck pulling up is longer than it would be for a job closer to the shop. That's just the geography of covering this area, not a reflection of how busy the day is. If both springs on a double door need replacing, which is common, since they wear at close to the same rate even if only one has snapped, plan for a little more time on site, but not a second visit. For the general run-down on what a garage door service call from Novato looks like start to finish, see the {novato_spring_repair_link}.
Other services in this area
Questions, answered
Why does the drive from Novato matter for a spring repair here?
Because it's about fourteen miles each way, the tech loads the truck based on what the call describes rather than planning to double back for a missing part. It doesn't change the repair itself, but it's part of why we ask specific questions about the door before dispatching.
Is a torsion spring repair a same-day fix?
Usually, yes. The hands-on work is typically under an hour once the tech is on site. The variable is the drive time getting out to Tamalpais-Homestead Valley, not the repair itself.
Do older homes here need anything different for spring repair?
Most houses in this area date to around 1963, which usually means a single torsion spring on original-style hardware. We check the shaft, bearing plates and cable drums for wear that's common at that age before putting a new spring on.
Can I replace a garage door spring myself?
No. A wound torsion spring stores enough force to cause a serious injury if it releases while you're working on it, and there's no safe shortcut around the winding bars and clamps a proper swap requires.
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.