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.
Clopay Cable & Drum Replacement: The Littleton Owner’s Guide
Clopay cable and drum replacement in Littleton typically runs $130-$250 installed for a cable, with drum replacement adding $120-$240 depending on the drum style and whether both sides are being done. We carry Clopay-compatible cables and drums on the truck for most common residential models, so a single cable failure is usually a same-day fix. Most Littleton homeowners find out a cable has failed when the door hangs crooked in the tracks or refuses to lift evenly on one side, often accompanied by a visible frayed steel strand near the bottom bracket.
What’s worth knowing immediately: a broken cable is rarely the root cause. In our experience across Littleton, the cable is usually the part that gives out after something else shifted, typically a tired spring or a bent track. That’s why we photograph the failed component and measure the spring before quoting a replacement cable. Replacing the cable without checking what overloaded it means you’ll be calling again in six months.
Which Clopay Models This Applies To
Clopay residential doors use one of two cable systems, and the compatibility distinction matters more than the model name. Doors built on Clopay’s standard torsion assembly run a 1/8-inch aircraft-grade cable paired with either a cast aluminum or stamped steel drum, and this covers most of the Intact, Classic, and Gallery series sold in Colorado since the mid-2000s. If your Littleton home has a Clopay door with a low-headroom track or a rear torsion setup, you may have the smaller-profile drums and a shorter cable spec, which is the single most common parts mismatch we see when another company guesses at the replacement.
The reliable way to identify what you have is the parts label on the end stile, the vertical frame piece at the door’s edge. Clopay stamps a model number there, and the cable length is usually printed on a tag near the bottom bracket. If that label is gone, we measure the drum diameter and the cable length on site before quoting. For Clopay specifically, we recommend OEM or Clopay-spec cable over generic aftermarket coil stock, because the drum groove pitch on Clopay drums is cut to match a specific cable diameter. A close-enough cable binds in the drum and chews itself apart within a season. We stock both OEM Clopay parts and quality aftermarket equivalents that match the original spec, and we’ll tell you which one we’re quoting and why.
For context, we also stock parts for LiftMaster, Chamberlain, and Genie openers and the other major door brands we service. But this page is specifically about Clopay cable and drum work, because that’s the repair that follows a specific failure pattern worth understanding before you spend a dollar.
Signs Your Clopay Cable & Drum Replacement Is Failing

- The door hangs visibly crooked in the opening when partially raised. One cable has stretched or slipped off the drum, and the other side is carrying the entire panel weight. Continuing to cycle the door in this state bends the track and can snap the intact cable too.
- You can see frayed steel strands near the bottom bracket or at the drum. Cables don’t fail invisibly. A lifted strand or a flat spot in the braid means the cable has already begun to unwind, and the remaining strands are carrying more tension than they’re rated for.
- The door jumps or shudders when it moves through the curve of the track. This usually means the drum has walked on the torsion tube or the cable is wrapped unevenly in the drum groove. In Littleton, temperature swings between night and morning can exaggerate this, because the tube and drum expand at slightly different rates.
- You hear a sharp pop followed by the door slamming down on one corner. That’s a cable letting go under full tension. Stop using the door, disconnect the opener if one is attached, and call us. A door with one cable down and one cable up is dangerous to move manually.
- The cable has jumped off the drum entirely and is wrapped around the shaft. We see this most often on Clopay doors where the spring lost tension and the cable went slack, then the opener ran the door anyway. The fix is not just rewinding the cable, it’s addressing the spring that let it go slack in the first place.
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AfterReplacement Cost & What’s Included
In Littleton, expect a Clopay cable replacement to run $130-$250 installed for a single side, and $180-$340 when we’re doing both cables with new drums on a standard residential door. A low-headroom or rear-torsion Clopay system sits at the top of that range because the drum and cable spec are less common and the labor involves more disassembly. The written price you get from us includes the part, the labor, and the rebalancing of the door, which is the step that actually keeps the new cable from failing the same way the old one did.
Every quote is a flat, written price and a written scope, delivered before any work starts. That’s Clause 1 of The Haven Standard, and it’s not a courtesy, it’s the rule we’ve operated under since 2015. If the spring measures out of spec while we’re in there, we photograph it, show you the measurement, and quote the spring separately. Nothing gets added to the invoice that wasn’t on the written scope you approved.
Our 365-Day Done Right Promise covers the cable and drum work: if it’s not right, we make it right. And you walk away with a documented photo record of what we found and what we did, because that’s Clause 4, and it’s the only way to run a repair business where the customer can verify the problem actually existed.
DIY or Call Us?

I’ve followed a fair number of YouTube tutorials myself, and what’s not obvious on a phone screen is how much stored energy a torsion assembly holds. A Clopay cable runs through a drum that only sits under tension because the spring is wound against it. Loosening the wrong bolt or unwinding the drum without controlling the spring is how people end up with broken fingers or a cable-shaped cut across the forearm. We’re not going to tell you not to touch your own door, but we are going to tell you that cable and drum work is not the entry-level repair. This is the one repair where the part is cheap and the process is unforgiving.
What you can safely do: visually inspect the cable for fraying, check whether the door is balanced by lifting it manually to waist height (it should stay put, not drop or climb), and look at whether the cable is seated in the drum groove on both sides. What you shouldn’t do: loosen anything attached to the torsion tube, try to wind a cable back onto a drum by hand, or remove a cable from a bottom bracket while the spring is wound. If what you’re seeing is a frayed cable or a door that won’t lift evenly, call us at (720) 636-7083 and we’ll send a technician with the right parts on the truck.
FAQs
Clopay cables in the Littleton area typically last 10-15 years before showing fatigue, but dry air, temperature swings, and doors that get cycled more than four times a day can shave that down to 7-10. The cable on a door with a dying spring will fail much sooner, because it’s absorbing load the spring is supposed to carry. If you’re at year 10 and seeing any fraying, replacing the cable before it snaps is cheaper than the track repair that follows a snapped cable.
No. A frayed cable has already lost structural integrity and is unwinding; there’s no safe splice or patch for garage door cable rated to hold a 200-plus pound door under torsion load. The repair is always full cable replacement, and on a Clopay door we’ll also inspect the drum for groove wear that might chew through the new cable.
A single cable replacement on a standard Clopay door takes about 45-60 minutes on site. If we’re doing both cables and both drums with a spring rebalance, plan for 90 minutes to two hours. Most cable-only calls in Littleton are done same-day because we keep Clopay-spec cable and common drum sizes stocked on the van.
We stock Clopay-spec cable in the common residential lengths, standard cast and stamped steel drums, and the bottom bracket hardware that usually fails alongside the cable. If you have a low-headroom or rear-torsion Clopay system with a less common drum, we may need a day to source the exact part, and we’ll tell you that before we quote, not after we’ve taken the door apart.
No. The written price you approve before we start is the price you pay, full stop. If we find additional failed parts during the repair, we photograph them, show you what we found, and give you a separate written price for that work. Clause 1 of The Haven Standard: written price and written scope before any work begins, on every job, no exceptions.
Call Servo Garage Doors Littleton for Clopay Cable & Drum Replacement

If your Clopay door is hanging crooked, showing frayed cable, or making that shuddering sound through the track, call us at (720) 636-7083. We’ll send a background-checked, uniformed technician to your Littleton home with the right parts on the truck, photograph what’s failed, and hand you a flat written price before a single bolt gets loosened.
Name the part, quote the range, then do the work. Free estimates on cable and drum replacement, a Free Second Opinion on any written estimate from another company, and a documented photo record on every visit. Marcus Deller and the team at Servo Garage Doors Littleton have been doing it that way since 2015.
Written by Marcus Deller, Owner, Servo Garage Doors Littleton at Servo Garage Doors Littleton, serving Littleton and nearby areas.






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