Full 25-point door and opener safety check with every visit - springs, cables, rollers, tracks, and your LiftMaster or Chamberlain opener included
You get a price before we start. It does not change when the truck arrives.
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AfterGenie Cable & Drum Replacement: The Van Nuys Owner’s Guide
Genie cable and drum replacement in Van Nuys typically runs $130-$250 installed, and we carry the common Genie drum sizes and cable gauges on our trucks for same-day completion. Most homeowners notice the problem when the door starts lifting unevenly or one side hangs lower than the other. The cable has usually frayed or slipped off the drum, which sits at the top of the vertical track and winds the cable as the opener lifts the door.
Which Genie Models This Applies To
This repair applies across Genie’s residential opener lines, from the older Screw Drive and ChainLift series through current Belt Drive and Wall Mount models. The drum itself is sized to the door, not the opener, but Genie systems use a consistent 4-inch diameter drum on standard 7-foot doors and a 5-inch drum on 8-footers. The cable must match the drum groove and the door weight, typically 1/8-inch or 5/32-inch aircraft-grade galvanized cable for residential Genie setups.
To identify what you need, check the drum for a stamped part number near the hub, or measure the drum height and cable diameter with the door fully closed. OEM Genie drums run about 30% higher than quality aftermarket equivalents we source from Prime-Line and National Hardware, both of which meet the same tensile specs. We stock both. If your door was installed between 1995 and 2010, watch for the older Genie-branded drums with a narrower hub, they need a specific cable wrap pattern or the cable will walk off under load.
Signs Your Genie Cable & Drum Replacement Is Failing
- The door hangs crooked when opening or closing. One cable has stretched, frayed, or slipped its drum groove, so that side of the door loses lift support. The opener keeps pulling, but the uneven load strains the center bracket and can warp the top section over time.
- You hear a loud bang or snap from inside the garage. A cable has broken under tension. The remaining cable carries the full door weight, which it was never meant to do, and the door will likely jam or fall off track if operated again.
- The cable is unwound and bunched at the bottom of the drum. The set screw on the drum has loosened, or the cable was improperly tensioned during a previous repair. This is common on Van Nuys doors that see heavy morning and evening cycles, the repeated winding heats the drum hub and can back out a poorly seated screw.
- Rust or oxidation visible on the cable strands. Coastal moisture pushed inland by the afternoon sea breeze reaches Van Nuys more than people expect, especially on north-facing garage doors that never fully dry. Surface rust quickly works into the cable core, cutting lifespan by half.
- The drum wobbles or clicks as it rotates. The bearing inside the drum has worn, or the shaft itself has bent from an earlier cable break. A wobbling drum chews through cables every few months until the root problem is fixed.
Replacement Cost & What’s Included
| Service | Price Range in Van Nuys |
|---|---|
| Cable & Drum Replacement (single side) | $130-$250 |
| Cable & Drum Replacement (both sides) | $220-$400 |
| Drum-only replacement (cable reusable) | $120-$200 |
| Emergency same-day service | No additional charge |
The range depends on door height, whether one or both sides need work, and whether the drum shaft or bearings also need replacement. We quote the full price before touching a tool. That price includes the cable, drum, any necessary fasteners, labor, and testing the door balance afterward. Every cable and drum replacement we do in Van Nuys carries our 90-Day Done Right Promise in writing. If the door doesn’t run right after we leave, we come back and make it right at no charge.
DIY or Call Us?
There is a safe middle ground here. You can inspect the cable for fraying and check whether the drum set screw has backed out, just keep your hands clear of the cable path. Do not attempt to wind, unwind, or adjust the cable yourself. The torsion spring above the door holds lethal tension, and a slipped cable means that spring is carrying an unbalanced load that can release without warning.
We have seen homeowners in the Van Nuys area try to reseat a cable with the door partially open, the door drops, the cable whips, and someone ends up in the emergency room. The fix takes our technicians about 45 minutes with the right tools and the door properly secured. If your Genie door is hanging uneven or the cable looks wrong, call (747) 836-1998. We will give you a straight answer over the phone and a flat price before we head out.
FAQs
Typically 8 to 12 years with normal residential use, though the Santa Ana wind cycles and temperature swings in the Valley can accelerate wear on the drum bearings. Rust from trapped moisture is the bigger killer here, we see cables fail at 5 years on north-facing garages that don’t vent well. Call (747) 836-1998 and we can check yours during a tune-up.
No. A frayed or broken cable cannot be spliced safely, the repaired section creates a weak point that will fail under load, and no reputable shop will do it. We replace the cable and inspect the drum at the same time, since a damaged drum will destroy a new cable in months. The flat price covers both.
Most Genie cable and drum replacements in Van Nuys take 45 minutes to an hour from the time we arrive. We carry the common drum sizes and cable lengths on the truck, so there is no waiting for parts. The door is tested for balance and smooth operation before we pack up.
Yes. Our trucks carry drums for standard 7-foot and 8-foot residential doors, plus 1/8-inch and 5/32-inch cable in the lengths Genie systems require. We are an independent service provider, not affiliated with Genie, but we are factory-familiar with their product line and stock quality equivalent parts that meet or exceed OEM spec. If you have an unusual door height or a commercial-grade Genie operator, we will confirm the part before dispatching.
The door should open. Let’s make sure it does. Call Mainspring Garage Door Co. at (747) 836-1998 for a free estimate on Genie cable and drum replacement in Van Nuys. We answer live, 24/7, and we will give you the flat price before any work begins.
Written by Carl Dutton, Owner, Mainspring Garage Door Co. at Mainspring Garage Door Co., serving Van Nuys and nearby areas.