Full 25-point door and opener safety check with every visit - springs, cables, rollers, tracks, and your LiftMaster or Chamberlain opener included
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Amarr Cable & Drum Replacement: The Los Angeles Owner’s Guide
Amarr cable and drum replacement in Los Angeles typically runs $155 to $295 installed, depending on whether you have a standard torsion setup or the heavier hardware on full-view and carriage-house doors. We stock Amarr-compatible cables and drums on our trucks, so most calls are finished the same day. “Name the part, quote the range, then do the work” is how we’ve handled every Amarr job since we started in 2015.
Most owners discover a failed cable the same way: the door opens partway, shudders, and drops back down with a sound that’s hard to forget. Or you’ll walk out one morning and see the door hanging crooked with a cable dangling off the drum like a snapped guitar string. Either way, stop running it. A door with one good cable and one failed one is a door under tension that’s about to become a bigger problem.
Which Amarr Models This Applies To
This guide covers the Amarr residential lineup we see most in Los Angeles: the Heritage and Lincoln series (the insulated steel workhorses), Classica and Hillcrest (the carriage-house doors with decorative hardware), and the full-view aluminum models popular in loft conversions and mid-century homes from Silver Lake to Culver City. The cable and drum setup varies enough between these lines that a one-size-fits-all part won’t always work.
Here’s what matters for Amarr compatibility: the drum diameter is keyed to the door height and spring type, not just the cable length. An 8-foot door uses a different drum profile than a 7-foot door even when the cable looks similar at a glance. Standard Amarr torsion drums run 4 to 4-1/2 inches in diameter, while full-view doors often step up to heavier-duty drums to handle the extra glass weight. The cable itself is aircraft-grade galvanized steel, typically 1/8 inch diameter for most residential doors and 3/32 inch on lighter single-car singles. If you’re trying to match a part yourself, look at the cable drum face or the door’s rear track plate for a stamped label. If the label’s gone, we measure the drum diameter and count the cable lay pattern before ordering what we don’t already have on the truck.
On the OEM versus aftermarket question: Amarr warehouses their own branded replacement parts, but the cables and drums themselves come from a small circle of US manufacturers that supply most major door brands. That means a quality aftermarket drum for an Amarr Heritage door is often functionally identical to the OEM part at a lower price. We’ll tell you when it matters. On full-view doors with the heavier glass, we lean OEM or direct-equivalent aftermarket because the drum tolerances are tighter and the door is less forgiving of a sloppy fit.
Signs Your Amarr Cable & Drum Replacement Is Failing

- Door hangs uneven when opening. One side climbs while the other lags, and the door visibly tilts in the tracks. Almost always a cable that has stretched, frayed, or begun slipping on the drum. Do not keep running the opener when you see this; the cable can jump the drum entirely on the next cycle.
- Frayed or rusty cable strands near the drum. Amarr cables in Los Angeles hold up well, but coastal air in Venice, Playa del Rey, and Long Beach accelerates rust if the cable has never been lubricated. Once individual strands start snapping, the cable’s load capacity drops fast. Total failure is a matter of cycles, not years.
- Scraping or grinding sound from above the door. The cable has begun walking off the drum, usually because the drum is misaligned or worn from years of friction. Even if the door still operates, the cable is chewing itself up every time the door moves.
- Door jerks at certain points in the cycle. A flat spot on the drum or a kinked section of cable that binds in the drum groove. You’ll feel it as a thunk or a hard jolt, often in the same spot every time.
- Loose cable hanging from the bottom bracket or drum. If you can see slack in the cable when the door is closed, the drum has either rotated out of position or the cable has a knot or kink preventing it from seating. A cable with no tension on it is already doing no work.
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AfterReplacement Cost & What’s Included
Amarr cable and drum replacement in Los Angeles averages $155 to $295 for a standard residential torsion door. Single-car doors with lighter hardware sit near the bottom of that range; double-car carriage-house and full-view doors with heavier drums, longer cables, or both sides needing replacement land at the top. If you need both cables and both drums replaced, which usually makes sense on a door past eight to ten years old, you’re looking at the upper end of that range plus the second drum.
Here’s the breakdown for Los Angeles:
- Cable replacement (one side, standard torsion): $155 to $195 installed
- Cable replacement (both sides): $185 to $245 installed
- Drum replacement (one side): $160 to $210 installed
- Cable and drum together (one side): $225 to $295 installed
- Both cables and both drums (full overhaul): $285 to $395 installed
Every quote is a flat, written price with a written scope before we touch the door. That’s Clause 1 of The Haven Standard, and it isn’t optional. The price you approve is the price on the invoice. Parts and labor are itemized. The work carries a 365-day Done Right Promise: if the cable or drum we install doesn’t hold up as it should, we make it right. You’ll also leave each visit with a documented photo record of what we found, what we replaced, and what the finished job looks like. Clause 4 is why the camera comes out before the tools do.
DIY or Call Us?

Here’s the honest version. You can, and should, inspect your Amarr cables yourself: check for fraying near the drum, rust along the cable length, and any visible slack when the door is closed. That’s the smart owner move and we’ll never talk you out of looking before you call.
What you should not do is attempt to replace a cable or drum yourself. The cables on a torsion-spring door carry the entire tension load of the spring system, and when a cable releases, the drum can spin with enough force to break fingers or worse. This isn’t a warning we print because it sounds good; we’ve seen the aftermath when a homeowner removed the wrong bolt and the drum let go. Even with the door down, a tensioned spring holds stored energy. Professional replacement also requires re-winding the spring tension in sync with the new cables, and getting that balance wrong means the door runs crooked and eats the new cable within weeks. Call (213) 348-6550. We’ll name the failed part, photograph it, quote you a flat price, and fix it the same day in most cases.
FAQs
Amarr cables and drums typically last 8 to 12 years in Los Angeles conditions, sometimes longer inland where there’s less coastal salt air. Drums usually outlive cables, but we replace them as a pair whenever the drum shows any groove wear, because a worn drum will shorten the life of a new cable.
No. Cables are not spliced or patched; once strands start separating, the cable’s load capacity is compromised and it becomes a safety risk. Replacement is the only correct repair. Call (213) 348-6550 and we’ll confirm the failure on site before quoting anything.
A standard Amarr cable and drum replacement takes 45 to 90 minutes for a single side, including re-balancing the door and resetting the opener travel limits. We carry common Amarr drums and cables on the truck, so most Los Angeles jobs are same-day from the time you call.
Yes. We stock Amarr-compatible cables and drums for the Heritage, Lincoln, Classica, Hillcrest, and full-view lines, plus the battery backup and opener parts for LiftMaster, Chamberlain, and Genie systems we service alongside them. If your exact drum profile isn’t on the truck, we measure on site and typically have the part within one business day.
Written by Marcus Deller, Owner, Servo Garage Doors Los Angeles at Servo Garage Doors Los Angeles, serving Los Angeles and nearby areas.
Need an Amarr cable or drum replaced? Call (213) 348-6550 for a flat, written quote with a documented photo record, same-day service in most Los Angeles neighborhoods, and the 365-Day Done Right Promise on every job.






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