What Most People Get Wrong
The biggest mistake we see is an owner assuming the door's age alone means it's done. Most houses in Randolph went up between 1938 and 1996, with the median landing around 1964, so a lot of what's on these garages is original torsion hardware from an era before today's safety cables and sensor eyes. That doesn't mean it's junk. A torsion spring system from 1964, if it's been lubricated and the drums aren't pitted, can still carry a door evenly for years. What actually fails isn't the design, it's neglect - a dry bearing plate, a cable that's frayed but still holding, a center bracket that's loosened a quarter inch. People hear "old door" and think "replace everything" when the fix is a spring, a bearing, and an hour of labor. The flip side is just as common: an owner keeps patching a door that's structurally tired because the opener still runs. Age by itself tells you almost nothing. What tells you something is the specific part in front of you, and whether the rest of the system was built to work with it.
What to Check
Start with the springs. If the door is original to a house built in the 1960s or '70s, which covers most of this stock, look at the winding cones for rust blooming at the coil ends - that's where they let go first. Next, the track: galvanized steel tracks from that era were sized for lighter doors and smaller openers than what's sold today, so check for flare at the rollers, a sign the track's been fighting a door it wasn't built for. Look at the panels themselves. Steel panels from the '60s and '70s run thinner than current stock; a crease across a panel usually means a bent hinge did the damage, not a worn-out door. Check the bottom panel for rust creep at the weather seal, since that's the section that sits closest to the slab. Last, the cables - original aircraft cable holds up fine mechanically but frays at the drum after enough winters. None of this requires guessing. A door with sound springs, a track that's still straight, and cables without visible fraying is worth fixing, full stop.
