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.
Raynor Cable & Drum Replacement: The Shavano Park Owner’s Guide
Raynor cable and drum replacement in Shavano Park typically runs $130-$250 installed, and we stock the common Raynor sizes on our trucks for same-day completion. Most jobs take 45 to 90 minutes once we confirm the model and cable length. You’ll know this part is failing when the door hangs crooked, cables look frayed or unspooled from the drum, or the opener strains without the door moving evenly.
We see this call most often after a loud snap from the garage, or when a homeowner notices one side of the door sitting lower than the other. In Shavano Park, the combination of Hill Country humidity swings and older Raynor installations in neighborhoods near Airy Mount Road means cables corrode faster than owners expect. The drum itself, a grooved wheel that spools cable to keep door weight balanced, can also crack or strip its set screws after fifteen or twenty years of cycles.
Which Raynor Models This Applies To
Raynor has used several cable drum designs across its product lines, and matching the right one matters. The part number is usually stamped on the drum face or cast into the hub, readable with a flashlight without disassembling anything. Common Raynor residential series include the Advantage, BuildMark, and Pilot lines, each with slightly different drum diameters and cable grooves. The cable itself varies by door height: a standard 7-foot Raynor door takes roughly 102 inches of 1/8-inch galvanized aircraft cable, while 8-foot doors need about 120 inches.
We carry both OEM Raynor drums and quality aftermarket equivalents that meet the same load ratings. For most Shavano Park homes built in the 1980s and 1990s, the aftermarket option holds up identically and keeps the price lower. One compatibility gotcha: Raynor’s older torsion systems used a left-hand wound drum on the right side and vice versa, which is the reverse of some other brands. Installing a standard-direction drum on the wrong side causes the cable to overlap and fray within weeks. We check this on every job.
Signs Your Raynor Cable & Drum Replacement Is Failing
- The door hangs crooked or one side lifts faster. When a cable frays or slips off its drum, the remaining cable carries uneven weight. The door torques in the track, and the opener motor labors harder on one side. Left alone, this bends the track or damages the top section.
- Visible fraying, rust, or broken strands on the cable. Aircraft cable is made of multiple thin wires twisted together. Once outer strands break, the inner core fatigues fast. In Shavano Park’s humidity, rust accelerates this, especially on north-facing garage doors that stay damp longer after rain.
- A snapped cable lying loose on the floor or wrapped around the spring tube. This is the end stage. The door is now held by a single cable and the spring tension alone, which is dangerous to operate. Stop using the door immediately.
- The drum wobbles or clicks during operation. Cracked castings, worn set screws, or a drum that has slipped on its shaft create this noise. The drum is supposed to turn smoothly and spool cable in clean layers; any wobble means replacement time.
- The opener runs but the door barely moves or reverses. The opener’s safety sensors detect the uneven strain and trigger automatic reversal. Many homeowners blame the opener when the real problem is a cable or drum failure downstream.
Replacement Cost & What’s Included
| Service | Price Range in Shavano Park |
|---|---|
| Raynor cable replacement (single) | $130-$190 |
| Raynor cable replacement (pair) | $180-$250 |
| Raynor drum replacement (each) | $140-$220 |
| Cable + drum replacement (full set) | $220-$340 |
The price depends on door height, whether the drum or just the cable has failed, and whether the failed part caused secondary damage to the track or bottom fixture. We quote the full installed price before touching a tool, and that price includes the parts, labor, disposal of the old hardware, and a written 90-Day Done Right Promise. No add-ons after the fact. Senior and veteran discounts apply at 5% off.
DIY or Call Us?
There’s a safe middle ground here. A homeowner can visually inspect cables for fraying, check if drums are seated on their shafts, and verify the door is level in the tracks. Do this with the door closed and the opener disconnected. What you should not do is loosen the set screws on a loaded drum or attempt to wind or unwind cable with the torsion spring still under tension. The spring stores enough force to cause serious injury if it slips.
We’ve been called to Shavano Park homes where a well-meaning repair made things worse, and the door ended up off both tracks. Our technicians carry the right drums and cables for Raynor systems, match the wind direction correctly, and tension-balance the door before leaving. Most of these jobs finish in one visit. If you’re unsure what you’re looking at, call (830) 224-4217 and we’ll walk through it on the phone, or come out for a free look.
FAQs
Properly maintained Raynor cables last 8 to 12 years in this climate, though we’ve replaced 6-year-old sets on north-facing garages with poor ventilation. Drums often outlast cables but should be inspected for cracks every time the cable is changed. Call (830) 224-4217 for a free inspection if you’re unsure of your hardware’s age.
No. Once aircraft cable begins to fray, its rated strength is compromised and splicing is not safe or reliable per manufacturer guidelines. Replacement is the only proper fix. We stock replacement cable cut to Raynor specifications and can match your door height on arrival.
Most replacements take 45 to 90 minutes from truck arrival to final balance check, assuming no track or opener damage from running the door in a failed state. We test full up-and-down cycles and check spring tension before signing off. The 90-Day Done Right Promise covers the work in writing.
Yes. We carry common Raynor cable lengths, left- and right-hand drums, and the associated hardware for residential doors up to 18 feet wide. For less common Raynor commercial or custom sizes, we source overnight and schedule the install once the part arrives. Call (830) 224-4217 to confirm availability for your model.
Written by Carl Dutton, Owner, Mainspring Garage Door Co. at Mainspring Garage Door Co., serving Shavano Park and nearby areas.




Before
After
Before
After
Before
After