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.
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AfterGenie Cable & Drum Replacement: The Alamo Heights Owner’s Guide
Genie cable and drum replacement in Alamo Heights typically runs $130-$250 installed, and we stock the common Genie drum sizes on our trucks for same-day completion. Most Genie screw-drive and chain-drive openers built from the mid-1990s through the late 2010s use a 4-inch or 5-inch diameter drum paired with 1/8-inch aircraft-grade cable, though the exact match depends on your door height and track radius. Homeowners usually notice the problem when the door hangs crooked, cables go slack on one side, or the opener strains without the door moving evenly.
Which Genie Models This Applies To
Genie has used several drum configurations across its product lines, and matching the wrong one throws off your cable wrap ratio. The IntelliG 1000 and 1200 series, the older ProMax, and the screw-drive Excelerator models all shipped with drums that look similar but carry different bore diameters and cable groove pitches. Check the label on your opener rail or power head for the model prefix - PMX, IS, or EX - then measure your drum across the widest point and count the cable grooves.
We carry both OEM Genie drums and quality aftermarket equivalents from DDM and National that meet the same torque specs. For most Alamo Heights homes with standard 7-foot doors, the aftermarket option performs identically at a lower parts cost. On 8-foot or custom-radius tracks, we prefer OEM for the precise groove geometry. Carl Dutton has matched these parts on jobs from Terrell Hills to the older neighborhoods near Incarnate Word University, where ceiling heights and track setups vary block by block.
Signs Your Genie Cable & Drum Replacement Is Failing
- Door hangs crooked or one side lifts faster. When a drum slips on the torsion tube or a cable frays unevenly, the door torques out of square. The opener keeps running, but the door binds in the tracks and the rollers start popping.
- Loose cable on one side when the door is closed. A worn drum groove lets the cable stack improperly or lose tension. In Alamo Heights, we see this often after humid summers when rust pits the drum surface and the cable no longer seats cleanly.
- Grinding or clicking from the opener head during travel. The Genie motor fights the uneven load. Screw-drive units especially transmit that strain straight back into the carriage, accelerating wear on the entire drive system.
- Visible fraying, kinking, or broken strands in the cable. Aircraft cable fails from the inside out. By the time you see outer wear, the rated strength has already dropped significantly. We replace cable and drum together because a damaged drum ruins new cable within months.
- Door slips closed a few inches after reaching the open position. The drum is not holding the cable wrap under load. This is a spring-balance issue too, but the drum groove wall wear is often the hidden cause we find on inspection.
Replacement Cost & What’s Included
| Service | Price Range in Alamo Heights |
|---|---|
| Cable & Drum Replacement (standard 7-ft door) | $130-$250 |
| Cable only (drum reusable) | $130-$200 |
| Drum only (cable reusable) | $150-$220 |
| 8-ft or high-lift door (larger drums, longer cable) | $180-$250 |
The range depends on door height, whether both sides need matching, and whether we use OEM Genie drums or equivalent aftermarket. We quote the flat price before any work starts. Parts, labor, lubrication of all contact points, and a full balance check are included. Every cable and drum job carries our 90-Day Done Right Promise in writing. If the door does not run smooth and true, we return at no charge.
DIY or Call Us?
You can safely inspect your cables with the door closed and the opener disconnected. Look for fraying, rust, or cable that has jumped the drum groove. Do not attempt to adjust or replace cables yourself. These parts are under extreme spring tension, and a slipped wrench or miscounted turn can release stored energy without warning. We have responded to Alamo Heights homes where a DIY cable fix turned into a bent door section or worse.
Our trucks carry Genie-compatible drums, cables, and the winding bars needed to set tension correctly. Most jobs finish in one visit. Call (830) 364-5701 and we will quote the price first, do the job right, and move on.
FAQs
Expect 8 to 12 years under normal use, though Texas heat cycles and humidity shorten that by 20-30 percent if the garage lacks ventilation. Annual lubrication of the drum groove and cable sheave points extends service life. Call (830) 364-5701 for an inspection - estimates are free.
No. Frayed or kinked aircraft cable cannot be spliced or welded to factory strength. We replace both cables as a matched pair even if only one shows damage, so door balance stays even. Call (830) 364-5701 for a flat quote.
Most Genie cable and drum replacements take 45 to 90 minutes, including door balance verification and safety sensor alignment. We stock the parts, so there is no ordering delay. Call (830) 364-5701 to schedule.
Yes. We stock 4-inch and 5-inch drums, standard and long-length cables, and the hardware kits for Genie screw-drive, chain-drive, and belt-drive openers. Mainspring Garage Door Co. is an independent service provider, not affiliated with Genie, but we are factory-familiar with their full product line. Call (830) 364-5701 - if we do not have your exact part, we will source it and return the same day.
Written by Carl Dutton, Owner, Mainspring Garage Door Co. at Mainspring Garage Door Co., serving Alamo Heights and nearby areas.