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.
Genie Cable & Drum Replacement: The Tarzana Owner’s Guide
Genie cable and drum replacement in Tarzana typically runs $130-$250 installed, and we carry the parts on the truck for most Genie models made after 1995. That means if your cable snapped this morning and your door is hanging crooked in the tracks, we can usually have it restrung, balanced, and running smooth the same day we show up. The way most Tarzana homeowners find out is sudden: a loud snap like a rifle shot, then one side of the door drops and the whole thing jams tight against the rail.

Otto Reinhardt has been untangling Genie cable messes in Tarzana since 2004, and he’ll tell you straight: a snapped cable is rarely the whole story. The cable is a victim. The spring above it does the lifting, and when the spring loses tension or breaks, the cable takes the shock. We fix the cable and the drum, but we always check what killed them so you’re not calling us again in six months.
Which Genie Models This Applies To
This covers the full Genie residential lineup you’ll find on Tarzana garage doors: the IntelliG, TriloG, SilentMax, PowerMax, ChainMax, and the older screw-drive and chain-glide models that Genie sold throughout the 1990s and 2000s. Genie’s cable and drum system runs on two standards: a 3.6-inch or 4-inch tapered drum for most standard lift doors, and a heavier flat drum setup on the high-lift tracks we see on Tarzana homes with raised ceilings or storage lofts above the door.
Here’s the gotcha most people run into: the drum diameter has to match the spring’s lift curve. Genie ships different drums depending on whether you have a torsion spring rated for a 7-foot or 8-foot door, and the spring’s inside diameter (2-inch on older Genies, 2.6-inch on newer ones) changes the drum spec entirely. If someone slaps a generic drum on a Genie with the wrong taper, the cable winds uneven, shreds the sheathing, and snaps again. We match by measuring the drum’s taper and counting the cable’s length out of the old spool, not by guessing from the model badge alone.
One honest word on parts: we stock OEM Genie drums when a door’s still under factory spec, but for most residential doors we’re just as comfortable with the quality aftermarket equivalents that use the same steel gauge and the same weld points. Otto has been working Genie doors for 22 years, and on a standard residential cable and drum, the aftermarket part is often built at the same plant with a different label. What matters is the fit and the balance, and that’s on us to get right. We’re an independent local shop, not affiliated with Genie directly, but we know their parts catalog like it’s our own kitchen drawer.
Signs Your Genie Cable & Drum Replacement Is Failing
Here’s what we see on service calls across Tarzana, from the flat lots near Reseda Boulevard up to the hillside homes off Vanalden where doors work harder in the heat:
- A frayed or kinked cable. You’ll see little steel whiskers sticking out from the cable body where it rubs the drum. Once the strands start separating, the cable’s done. It holds tension until it doesn’t, and when it goes, the door goes with it.
- One side of the door sits higher than the other. When a cable’s stretched or slipping on the drum, the door climbs uneven. The opener strains against the misalignment, and eventually the belt or chain pays the price.
- Grinding or squealing near the top roller while the door moves. That’s the drum skip-catching on a cable that’s lost its seating in the groove. The noise is the drum wearing itself into a sharp edge that’ll saw through the next cable we put on.
- Visible gaps between the cable and the drum surface. If the cable’s walking off the drum to one side, the door’s out of balance. That usually means the spring above it has lost torque, and the cable’s carrying weight it was never built to carry.
- The door drops a few inches when you release the opener trolley. This is the one we want to hear about the same day. A healthy door holds its position anywhere in the travel. If it sinks, the spring and cable system aren’t holding tension, and something’s about to let go.
Most of these symptoms mean the door’s doing 200 pounds of work with one hand tied behind its back. Every cycle makes it worse.

Replacement Cost & What’s Included
Cable and drum replacement on a Genie door in Tarzana runs $130-$250 installed, depending on whether we’re doing both sides or one, whether the drum needs replacement or just reseating, and whether your Genie is a standard-lift or a high-lift setup. The high-lift drums with their longer cables and different tapers sit at the upper end of that range. Here’s how the numbers break down:
| Job | Price Range |
|---|---|
| Cable repair (one side) | $130-$180 |
| Cable repair (both sides) | $180-$250 |
| Cable + drum replacement (per side) | $180-$250 |
| Cable + drum + spring assessment | $220-$340 |
The labor’s included in those numbers, not added on after the fact. We quote the job on the phone, Otto holds that number when the truck shows up, and the price doesn’t move between the driveway and the invoice. If we find the spring’s also dead (which happens about half the time on a snapped-cable call), we’ll show you what’s going on before you approve a dollar more. You’ll always know the number before any work starts, and the 90-Day Done Right Promise means if our work fails, Otto comes back and makes it right. That’s written on every invoice, not implied.
DIY or Call Us?
You can check a few things without touching the dangerous parts: look at the cable for fraying, snap a photo of the drum and the label on the spring, and test whether the door balances by pulling the release handle and lifting the door halfway by hand. If it won’t hold position, the spring and cable system is doing something it shouldn’t. But here’s the honest truth, and Otto’s never soft-pedaled it: when a Genie cable snaps, that’s a spring under tension that just got released unevenly, and the garage door spring is the most dangerous thing in your house. There’s enough energy stored in one of those coils to break bone or worse. A door is 200 pounds riding on two springs. Respect it.
Our crew does this work weekly in Tarzana, up and down the side streets north of Ventura Boulevard, and we’ll tell you the same thing we tell our own neighbors: don’t try to re-string a cable yourself. The tools alone cost more than the service call, and one wrong move with a winding bar sends you to the ER faster than you can say “torsion tube.” Call (818) 431-2466, and we’ll come out, diagnose it properly, and fix it with the right Genie-spec parts the same day.
FAQs
Most Genie residential cables last 8 to 12 years under normal use, but Tarzana’s heat accelerates the wear by drying out the cable’s internal lubrication and making the steel stiffer and more brittle. If your garage faces west and bakes in the afternoon sun, expect closer to 7 or 8 years. Call (818) 431-2466 and we’ll take a look before it snaps, not after.
Sometimes yes, if the drum’s groove is still clean and the taper hasn’t worn a sharp edge into the steel. But if the drum’s been chewing on a frayed cable for weeks, the groove is usually shot, and replacing the cable alone just dooms the new one. We’ll show you exactly what we’re seeing and let you decide before we touch anything.
Most single-door jobs take us 45 to 90 minutes if the spring’s still healthy. If the spring’s also failed and we’re doing a full rebalance, figure 2 to 3 hours, and we’ll tell you that on the phone before we show up.
Yes. We carry standard Genie cable sets in both common lengths, 3.6-inch and 4-inch drums, and the high-lift drum kits for most models. If you’ve got an unusual custom door, we’ll grab the right part from our local supplier and be back the same afternoon.
Written by Otto Reinhardt, Owner, Otto’s Garage Door - Tarzana, CA at Otto’s Garage Door, serving Tarzana and nearby areas.






Before
After
Before
After
Before
After