Fontana, CA · Garage Door Service
Norco homes built around 1974 still run on original torsion hardware. We drive out from Fontana with the springs sized for that era's doors.
Most houses on this side of Norco went up around 1974, which puts them square in the range where a torsion spring has never once been swapped. If nobody's touched the spring since the house was framed, you're looking at 40-plus years on steel that was rated for maybe 10,000 cycles when it left the factory. That's the number that matters more than the age of the paint on the door.
We pull the door panel by hand first, before anything else, to confirm the spring is actually the fault and not a cable, a bent track, or a bracket that's pulled loose from the jamb over the decades. Once that's confirmed, the job is: unwind the old spring under tension, measure the wire gauge and wind length against the door's weight, install the matched pair, and check the whole system - cables, drums, bearing plates - since a spring rarely fails alone after that long in service.
Norco sits about 14 miles out from our shop in Fontana, so we plan the drive into the job, not around it. We're not a local branch here, we're the crew that comes when you call.
For a 1974-built door, the torsion spring is almost always the original size specified for a single-layer steel or wood-panel door, not the heavier insulated doors that came standard decades later. We stock the wind lengths and wire gauges that fit that generation of hardware, plus the standard bearing plates and center brackets that tend to wear out at the same time as the spring, since they're carrying the same original load.
What we don't carry on the truck is anything custom - if a door's been retrofitted with a mismatched replacement spring somewhere along the way, or the header bracket is a nonstandard size from a past repair, that part gets special-ordered rather than swapped on the spot. We'd rather tell you that up front than promise a same-visit fix we can't back.
A straight spring swap on original 1970s hardware is usually the fastest kind of call we run, because there's less to untangle - no opener wiring to work around, no odd aftermarket brackets. The time adds up when the bearing plates or the center bracket have worn oval from four decades of the same spring cycling against them, which we do see on doors this age that haven't had any hardware touched since installation.
We don't quote a fixed number of minutes because every door's condition is different, but the extra time on an older door usually goes into replacing worn-out ancillary hardware, not the spring itself.
A spring that's original to a 1974 build has had a long time to fatigue unevenly, and the failure mode on a door like that is usually one side snapping while the other holds, which twists the shaft and can bend the track guides on the way. That's a different repair than a clean double-spring failure, and it's more common on doors that have never had the springs replaced as a matched pair.
The other issue we run into on original hardware is a center bracket that's cracked or elongated from the same decades of stress. If that bracket goes at the same time as the spring, replacing just the spring doesn't fix the door - it just fails again within weeks. We check for it every time, because on a house this age it's common enough to expect.
A torsion spring holds enough stored energy to break a bone or worse if it lets go while you're working on it, and that risk doesn't go down because the spring is old - if anything it goes up, since a spring that's fatigued can behave less predictably than a new one under the same load. We won't walk anyone through doing this themselves over the phone.
What you can safely check yourself: whether the door is sagging unevenly, whether you hear a loud bang followed by the door refusing to lift, and whether the spring itself has a visible gap where it's snapped. Any of those, stop using the opener and call - forcing an opener against a broken spring is what turns a spring job into a track and cable job.
The most common way this shows up in Norco is a door that used to lift with one hand and now needs both, or an opener that strains, grinds, and reverses partway up. On original hardware that's typically the spring losing tension gradually rather than snapping outright, though a loud bang followed by a door that won't budge is the sudden version of the same failure.
Either way, the fix doesn't change based on how it happened - it's a matched-pair spring replacement sized to the door's actual weight, not a guess based on what's easiest to grab off the shelf.
It's common on this side of Norco, where a lot of houses date to the early-to-mid 1970s and haven't had major garage hardware work since. A spring that's never been replaced on a door that age is well past its rated cycle life, so if you haven't had it swapped, it's worth checking before it fails on its own.
No. We run out of Fontana, about 14 miles away, and drive out for the job. We don't advertise a local response time here because we're not staged in town - we just don't skip the drive when you call.
Yes, that's the standard case for 1970s-built doors - a single-layer panel with an original-spec torsion spring. We measure wire gauge and wind length against the door's actual weight rather than guessing off a size chart, and we carry that range on the truck.
Uneven fatigue is common on original hardware that's decades old - the two springs rarely wear at exactly the same rate. When one goes, the shaft can twist and stress the track guides, so we check both sides and the guides, not just the broken spring, before calling the job done.
Call now or request a free quote - same-day service on most repairs, upfront written pricing.
