Clopay Cable & Drum Replacement Nationwide

Clopay Cable & Drum Replacement: The Bellevue Owner’s Guide

Clopay cable and drum replacement in Bellevue typically runs $130-$250 installed, and we stock the common Clopay drum sizes and cable lengths on our trucks for same-day completion. Most homeowners discover the failure when one side of the door hangs lower than the other, or the door jams completely with the cables tangled or off the drums. We match the part to your Clopay model number before we quote, so the price you see is the price on the invoice.

Call (425) 696-3561

Which Clopay Models This Applies To

Clopay uses two primary drum systems across their residential line, and getting the wrong one means the door won’t balance. The standard-lift drum (most common on 7-foot and 8-foot doors in Bellevue’s older split-levels near Crossroads) has a flat hub with a gradual taper. The high-lift or vertical-lift drum (found on newer construction around the Spring District with cathedral or bonus-room garages) has a steeper taper and a deeper cable groove to accommodate the taller track geometry.

To identify yours, check the sticker on the interior panel of the door for the model prefix: Classic Collection (C-series) and Gallery Collection (G-series) almost always run standard-lift drums. Canyon Ridge (CR-series) and Avante (AV-series) can go either way depending on headroom. The drum itself carries a casting number on the hub face, something like “D400-96” or “D525-120” - we need that number, or the door width and track height, to order the correct replacement.

Clopay OEM drums are cast aluminum with a specific groove profile. We also carry quality aftermarket equivalents from DDM Garage Doors and Garage Door Supply Company that meet the same dimensional specs at a lower parts cost. The aftermarket drums we use are galvanized steel rather than aluminum, which holds up better in Bellevue’s wet winters where road salt tracks into the garage. For cables, we match the Clopay spec exactly: 1/8-inch or 5/32-inch 7×19 galvanized aircraft cable, depending on door weight. We do not substitute hardware-store cable; the wrong diameter will groove the drum prematurely.

Servo Garage Doors Bellevue is an independent service provider and is not affiliated with Clopay Corporation.

Signs Your Clopay Cable & Drum Replacement Is Failing

• Door hangs crooked when closed. One cable has slipped or frayed, so that side of the door sits 2-4 inches lower. The drum may have a worn groove that no longer grips the cable consistently, especially if the set screws were overtightened in a previous repair.
• Cable is unwound from the drum and bunched at the bottom bracket. This usually means the drum’s retaining collar has cracked, or the cable was improperly seated in the groove during the last installation. In Bellevue, we see this more often on doors facing west where afternoon sun heats the garage and accelerates cable fatigue.
• Loud bang or snap when operating the door. A cable has broken under load. The remaining cable and drum now carry double the tension, which warps the drum hub and often damages the torsion spring if the door is run again.
• Door rises 6 inches and stops, or the opener strains. The cables are not winding evenly on the drums, creating unequal lift. The drum may be cracked around the bore where it sits on the torsion tube, a failure mode we find on Clopay drums installed before 2015.
• Visible rust or corrosion on the drum surface. Bellevue’s humidity, especially in garages without vapor barriers, pits the drum groove. The cable then catches and releases in a stutter pattern, accelerating wear on both parts.

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After

Replacement Cost & What’s Included

The range depends on three factors: whether we replace one side or both (we almost always recommend both, since the remaining original part has the same cycle count), whether the torsion spring requires adjustment after the drum swap, and whether the bottom brackets or cable sleeves also need replacement. Every quote is written and agreed before work starts - Clause 1 of The Haven Standard - and includes the documented photo record of the failed part and the completed installation. The 365-Day Done Right Promise covers the labor and parts; if the door doesn’t balance correctly after our work, we return and make it right.

DIY or Call Us?

There is exactly one thing a homeowner can safely check: whether the cables are still seated in the drum grooves with the door fully closed. If one has slipped, do not operate the door. The cables on a Clopay door are under several hundred pounds of tension from the torsion spring, and a cable that releases suddenly can cause serious injury.

Everything else - drum removal, cable winding, spring tension adjustment - requires specialized winding bars and training. We have replaced drums where the previous owner used a screwdriver instead of a winding bar and stripped the set screws into the torsion tube, turning a $200 repair into a $600 track-and-tube replacement. Name the part, quote the range, then do the work. That’s how we avoid those calls.

If your Clopay door is hanging crooked or the cable is off the drum, call (425) 696-3561. We’ll match the part to your model, quote the installed price in writing, and usually complete the repair same day.

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