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 Littleton Owner’s Guide
Genie cable and drum replacement in Littleton typically runs $130 to $250 installed, parts included, and most jobs close the same day we look at the door. That’s the range Marcus Deller quotes before the van shows up - written, flat, no hourly surprises. When the cable snaps or the drum grooves have worn smooth, the door stops dead on one side, and the screech that follows is usually the sound of a door trying to lift itself off the track. We stock Genie-compatible cable and drum assemblies on the truck for the common residential series, so the first visit is usually the only visit.
Which Genie Models This Applies To
The cable and drum setup on Genie doors is not one-size-fits-all, and matching the drum to the spring is the whole game. The IntelliG and TriloG residential series from the last 12 years or so run a specific drum profile that differs from what older Genie blue-label doors used - and if you put a new cable on a worn drum, you’ll be back in six months with the same failure. We identify the right part by reading the model sticker on the door edge first, then confirming the drum’s outside diameter and the cable length against the door height. A 7-foot door takes a different cable than an 8-foot door, and tall-rail setups change things again.
OEM Genie parts exist, and for some current-series doors that’s the only way to keep the warranty clean. But on older Genie doors where the model is discontinued, a quality aftermarket assembly that matches the drum’s dimensional spec is often the smarter money. We carry both, and we’ll tell you which one makes sense before we touch anything. One thing to know about Littleton specifically: the dry Colorado air and temperature swings cause cables to fatigue faster than homeowners from humid climates expect, so a cable that looks frayed at the connection point is a future failure, not a cosmetic issue.
Signs Your Genie Cable & Drum Replacement Is Failing

- Door lifts unevenly, one side lagging. The cable has stretched or the drum has worn a groove that no longer tracks evenly, so one side pulls ahead of the other. If ignored, the door binds and the cable snaps under load.
- Visible fraying or broken strands near the bottom bracket. That’s the highest-stress point on the cable, and Colorado’s dry air accelerates wire fatigue there. Once strands start separating, the cable is done - it won’t get better.
- Loud rasping or grinding when the door moves. The drum’s groove surfaces have worn down to bare metal, and the cable is no longer spooling cleanly. That grinding is the drum chewing on cable wire.
- Door jerks at the start of travel. The cable has jumped or is riding outside the drum groove. Every cycle it gets worse, and eventually the drum spins free and drops the door onto the track.
- Cable completely snapped, door stuck at an angle. When this happens, the door is resting on one side, which quickly bends the track and stresses the remaining spring side. Don’t run the opener - that’s how doors come off the track entirely.
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AfterReplacement Cost & What’s Included
In Littleton, Genie cable and drum replacement lands between $130 and $250 installed. The spread depends on whether we’re doing cables only or the full cable-and-drum pair, plus the drum profile your door uses. We quote parts and labor as one flat number, written, before any work starts - that’s Clause 1 of The Haven Standard, and it’s the reason we don’t say “call for a quote.” You get the number on the table, and the work doesn’t start until you approve it.
Included in the price: the cable or drum assembly itself, installation, a tension check on the system, and a documented photo record of what we found and what we did when the job is done. The work is backed by the 365-Day Done Right Promise - if it’s not right, we make it right, and that’s in writing, not a handshake.
DIY or Call Us?

What you can safely check yourself: whether the cable is visibly frayed near the bottom bracket, whether the door is lifting straight or tilting, and whether the drums are roughly the same on both sides. That’s useful information - and you should take photos of it.
What you should not do is replace the cable yourself. Garage door cables run under hundreds of pounds of tension from the torsion spring, and the moment you release that cable from the bottom bracket, that spring’s stored energy has one predictable exit: through whatever’s holding the wrench. This is genuinely the most dangerous DIY job on a garage door, and it’s also the one where a small indexing mistake on the drum leaves you with a door that flies off the track the first time you hit the button. Name the part, quote the range, then do the work - that’s how we do it. Call (720) 636-7083 and we’ll have a stocked van there, usually same day.
FAQs
In this climate, most Genie cables last 7 to 10 years before fatigue shows, with the bottom bracket connection being the first failure point. Dry air, cold snaps, and daily cycle count all push that number down - if you use your garage as the front door, expect the shorter end. If the cable’s frayed or the drum is worn, call (720) 636-7083 for an exact quote.
No - once the wire is frayed or snapped, the cable is done, and patching cable under torsion tension is not a repair, it’s an accident with extra steps. The fix is a new cable paired with either a clean drum or a new one, depending on condition. Call (720) 636-7083 and we’ll quote the full fix before anything gets touched.
Most Genie cable and drum replacements run 45 to 90 minutes once the van is in the driveway, including the tension check and photo record. The limiting factor is usually whether the door sustained track damage before we got there. Call (720) 636-7083 for a same-day window.
Yes - we carry common Genie residential cable lengths and drum profiles on the truck, along with LiftMaster and Chamberlain parts, so most jobs close on the first visit. If your door needs a specific discontinued drum size, we get it ordered and you know the installed price before we do. Call (720) 636-7083 and we’ll match your model from the truck stock.
Contact Servo Garage Doors Littleton

We are an independent service provider - we are not affiliated with Genie, and we don’t need to be to get the parts right. We stock Genie-compatible cable and drum assemblies alongside the other major brands, and every job goes out with a written price before we start and a photo record after we finish. If your door is sitting at an angle in Littleton or you can see the wires separating, call (720) 636-7083. You’ll get a live person, a named technician, and a free estimate with a real number on it.
Written by Marcus Deller, Owner, Servo Garage Doors Littleton at Servo Garage Doors Littleton, serving Littleton and nearby areas.






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