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.
Before
After
Before
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Before
AfterClopay Cable & Drum Replacement: The Leon Valley Owner’s Guide
We stock and install Clopay-compatible cable and drum assemblies for most residential models in Leon Valley, with typical installed pricing between $130 and $250 depending on door size and hardware generation. Most replacements are completed in a single visit because our trucks carry the common Clopay drum sizes and cable lengths for 7-foot and 8-foot doors. You’ll usually discover this failure when the door hangs crooked, one side lifts faster than the other, or the cable has unspooled from the drum and now sits in a heap at the bottom of the track.
Which Clopay Models This Applies To
Clopay has used several drum and cable configurations across its product lines, and matching the right assembly matters for safe, level operation. The stamped-steel standard-lift drums found on most Clopay Classic, Gallery, and Coachman series doors from 2004 onward carry a 4-inch diameter with 12 grooves, while older Clopay doors and the heavier Reserve Wood Limited Edition lines often used a 5-inch vertical-lift drum with a different cable anchor point. The part number is usually stamped on the drum face or cast into the hub, but if rust has eaten it away, we measure drum width, hub bore, and count cable grooves on site.
We are an independent service provider with no affiliation to Clopay Corporation. For most Leon Valley homeowners, a quality aftermarket cable and drum assembly from DURA-LIFT or Prime-Line meets or exceeds OEM specifications at a lower parts cost. The exception is Clopay’s newer Intellicore and WindCode-rated doors, where the drum’s cable pickup geometry was modified to handle heavier insulation; an incorrect drum here causes uneven winding and premature cable fraying. We stock both OEM and aftermarket options and will show you the difference before any work starts.
Signs Your Clopay Cable & Drum Replacement Is Failing
- The door hangs crooked when closed. One cable has stretched, slipped, or broken entirely, leaving the opposite side’s torsion spring to pull unevenly. In Leon Valley, we see this most often after a summer storm shifts the door in the track and the homeowner forces the opener to compensate.
- A loud bang from the garage, then the door won’t move. The cable has snapped under load. Clopay cables are galvanized aircraft-grade wire, but after 15,000 cycles in Texas humidity, the strands fatigue at the bottom loop where they attach to the bottom bracket.
- Cable is frayed or bird-caged near the drum. The drum’s grooves have worn sharp edges, or the cable was incorrectly wound during a previous repair. Once a single strand breaks, the rest follow quickly; this is not a wait-and-see situation.
- The cable has jumped the drum and now dangles loose. Usually means the drum set screws have backed out, or the drum itself has cracked at the hub. We check both the drum and the torsion tube for scoring when this happens.
- The door rises slowly and the opener strains. A cable that has partially unwound from the drum creates binding in the lift geometry. The opener works harder, runs hotter, and fails sooner; fix the cable and drum first, or you’ll be replacing the opener next.
Replacement Cost & What’s Included
| Service | Leon Valley Price Range |
|---|---|
| Cable & drum replacement (standard 7-ft door) | $130-$180 |
| Cable & drum replacement (8-ft or insulated/heavy door) | $180-$250 |
| Additional bottom bracket or pulley if damaged | $25-$45 per part |
What drives the range: door height, single vs. double-wide, whether the drum is still available aftermarket or requires OEM sourcing, and whether the torsion tube or bearings need attention while we’re in there. We quote the full installed price before touching a tool, and that number does not change once work begins. Parts, labor, disposal of the old hardware, and our 90-Day Done Right Promise are all included. If something is not right, we come back. No paperwork to file, no argument.
DIY or Call Us?
There is a safe middle ground here, and then there is a hard stop. You can visually inspect the cable for fraying, check whether the drum set screws are tight, and verify the door is disconnected from the opener before any manual testing. What you should not do is loosen the set screws on a torsion spring system or attempt to rewind cable onto a drum under tension. The stored energy in a standard 16-foot Clopay door’s torsion spring can cause serious injury if released incorrectly.
We carry the common Clopay drum sizes and cable lengths on every truck serving Leon Valley, Bandera Road, and the surrounding neighborhoods. Most cable and drum replacements take 45 to 90 minutes. Call (210) 972-1317 and we’ll confirm your door model, quote the work flat, and schedule a time that holds.
FAQs
In the Leon Valley climate, expect 8 to 12 years or roughly 12,000 to 15,000 open-close cycles from a quality cable and drum set. The combination of Texas humidity and temperature swings accelerates corrosion at the cable’s bottom loop and can fatigue the drum’s cast hub faster than in drier regions. Annual lubrication of the drum grooves and cable inspection extends service life by a few years. Call (210) 972-1317 to add this to your $89 Seasonal Tune-Up.
No. A frayed or broken cable must be replaced in full; splicing or welding creates a weak point that will fail under load, and no reputable shop will do it. The drum may be reusable if the grooves are clean and the hub is not cracked, but we inspect it under load before making that call. We quote both scenarios upfront so you know the full cost before we start.
Most Clopay cable and drum replacements are completed in 45 to 90 minutes, including testing the door balance and opener force settings afterward. We arrive with the parts on the truck, so there is no waiting for a supplier run or a second appointment. If the torsion spring or bottom brackets also need attention, we will tell you before adding any work.
Yes. Our trucks carry the standard-lift and vertical-lift drums, 1/8-inch and 3/32-inch galvanized cables in 7-foot and 8-foot lengths, and the correct winding bars and set screws for Clopay hardware. For older or specialty Clopay models, we source OEM or matched aftermarket parts within 24 hours. Call (210) 972-1317 and we will confirm compatibility with your door before dispatch.
Written by Carl Dutton, Owner, Mainspring Garage Door Co. at Mainspring Garage Door Co., serving Leon Valley and nearby areas.