Related parts due together
On a door this age the lift cables and rollers are usually due too, even if they weren't the reason for the call, since they've been flexing under the same thirty-plus-odd years as the spring.
Riviera Beach, Jupiter
Spring repair for Riviera Beach's early-1980s garage doors, built from Jupiter 10 miles out. We know the hardware this era used and what fails on it first.
Job timing
Riviera Beach's housing stock centers on 1980, which puts most garage doors here at the tail end of the steel single-layer era, wide enough for a two-car opening but thin enough that the torsion spring is doing real work holding the weight up rather than just balancing a light panel. A door built around then typically runs on a single torsion spring sized for a heavier, uninsulated slab than what gets installed today. When that spring goes, the door doesn't ease down, it drops, and the opener motor takes the strain it was never sized for. We drive the 10 miles out from Jupiter for this call regularly enough to know what's waiting on the other side of the door before we unload the truck: a worn torsion spring, a bent end bearing plate, or both, on hardware that's been sitting in Florida humidity since before most of the subdivision's current owners bought in.
DIY or pro
A torsion spring under tension can put someone in the hospital, and that's true everywhere, not just here. What's worth saying locally is that a 1980-era door's spring is wound to lift more dead weight than a modern insulated door, so the stored energy in that coil is higher than what you'd find on a newer install. Winding bars, a tensioned spring, and a steel panel that weighs more than it looks like it should is not a Saturday project. If you've already got the door open and propped, that's fine - leave it there and call. Don't cut the old spring to get it off. Don't force the opener to lift a door with a broken spring; you'll burn out the motor or snap a cable next, and now it's two repairs instead of one.
The repair
Most jobs are a straight swap: matched torsion spring, re-set the winding cone, check the bearing plates and the cable drums while the door's unloaded anyway.
On a door this age the lift cables and rollers are usually due too, even if they weren't the reason for the call, since they've been flexing under the same thirty-plus-odd years as the spring.
We measure the door's weight and track drop on site rather than guess off a chart, because a 1980 steel slab and a later lightweight replacement panel on the same frame don't take the same spring, and a mismatch means the door won't sit level or the opener will fight it from day one.
Warning signs
The door won't budge, or it only lifts a foot and stalls - that's a snapped torsion spring almost every time. Sometimes it's a loud bang from the garage first, which is the spring letting go, not the opener. If the door looks crooked when it's halfway up, one cable has likely come off a drum because the spring on that side gave out and the other side is still pulling. None of this is an opener problem even though the opener usually gets blamed first, since it's the thing making noise when it can't do its job.
Watch-outs
Florida's mild temperate climate is easy on a lot of building materials, but it doesn't spare steel hardware sitting in a humid garage for four decades, and galvanized torsion springs and bearing plates here corrode slower than up north but they still corrode.
On some of the older runs in Riviera Beach we find springs that were already replaced once with a non-matched size, which throws off the balance even before the second spring fails.
If a door has had panels swapped over the years - a common fix after storm damage - the weight on the spring may no longer match what the original hardware was rated for, and that's worth catching before we just hang a like-for-like spring back on.
On the truck
We carry a working range of torsion springs sized for both the heavier 1980s-era steel doors common in this area and the lighter insulated doors that have gone in as replacements. Standard cable, drums, and bearing plates come with us too, since they're usually worth replacing at the same time as a spring on a door this old. What we don't stock on the truck is a spring for every oddball non-standard door out there - if a previous repair left non-matching or custom hardware on your door, that part may need to be ordered, and we'll tell you that on site rather than make you wait while we guess.
Questions
Housing in the area centers on 1980, so a lot of doors are original steel slabs from that era or a later replacement that went onto the same opening. That age matters for spring repair because older doors often weigh more than today's insulated panels, which affects what size spring the door needs.
No. We're based in Jupiter and drive the roughly 10 miles out to Riviera Beach for spring calls. We don't keep a branch or depot in town, so we can't promise a same-hour walk-in, but we do carry spring stock sized for this area's older doors on the truck.
Torsion springs wear out from cycling, not from one bad day, and on a door from the 1980s that's four decades of open-and-close cycles plus years of Florida humidity on the coil. By the time it snaps it's usually been fraying for a while - you just can't see it from the garage floor.
We don't recommend it. Two springs on a door age at roughly the same rate, and replacing only the broken one leaves a mismatched pair that wears unevenly and can fail again soon. We'll usually swap both while we're there.
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Jupiter Garage Door Co repairs and installs garage doors, springs and openers in Jupiter, FL and the surrounding area.