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 Kent Owner’s Guide
Raynor cable and drum replacement in Kent runs $130 to $250 installed for most single-door setups, and we carry Raynor-compatible drums and aircraft-grade cables on the truck for same-day replacement. You’ll usually discover the failure two ways: the door hangs crooked on one side, or you hear a sharp snap followed by the door refusing to move. Either way, you’re looking at a lift cable that has let go, and the drum above it is almost always part of the story.
Here’s the thing about Raynor doors that doesn’t get talked about enough: they run quieter than most, which means the early warning signs of cable wear get masked. By the time you hear anything, the cable has usually frayed through. Marcus Deller puts it plainly: “Name the part, quote the price, then do the work - in that order.” That’s how we handle every Raynor cable and drum job in Kent.
Which Raynor Models This Applies To
Cable and drum replacement covers most residential Raynor lines still in service around Kent, including the Advantage, Aspen, Decade, Steeliner, and Pilot series, along with their commercial-feel residential builds that turn up on older East Hill homes. The compatibility gotcha that surprises people is this: Raynor uses both standard 7-foot and extended 8-foot drum profiles, and the cable length has to match the drum’s circumference exactly. A 7-foot drum with an 8-foot cable leaves slack that binds on the way up.
Here’s how we identify the right match without guessing. If your door was installed before roughly 2010, the drum is likely a cast aluminum 4-inch profile, and Raynor paired it with 3/32-inch galvanized cable. Newer Raynor doors switched to a 4-inch nylon-core drum that’s actually quieter but slightly more prone to scoring when the cable rubs. We measure the drum diameter, check the cable diameter with a caliper, and confirm the door height before anything gets ordered or pulled off the truck. That’s Clause 4 at work: photograph the failed component, then quote the replacement.
On the OEM versus aftermarket question for Raynor specifically: we stock quality aftermarket drums and cables that meet or exceed Raynor’s original specs, and we’re upfront about it on the written scope. If you want genuine Raynor-branded parts, we can order them, but they’re typically a week out and cost 30 to 40 percent more for no measurable performance gain. Most Kent homeowners take the aftermarket route once they see the price difference in writing. We also stock parts for LiftMaster, Chamberlain, and Genie doors, so if you have a mixed-brand garage, one visit usually covers it.
Signs Your Raynor Cable & Drum Replacement Is Failing

- Door hangs visibly crooked or sags on one side when opening. One cable has lost tension or snapped, and the remaining cable is carrying the full load. The drum on the failed side usually shows fresh scoring or a slipped wrap.
- You hear a loud snap from inside the garage, then the door won’t move. That’s the cable letting go under tension. The broken end often whips inside the track and leaves a clean line in the dust on the wall, which is a useful tell when we inspect it.
- The door opens a few inches, shudders, and stops. A frayed cable catches inside the drum groove, and the opener’s limit switch trips trying to fight it. This is the failure mode we see most often in Kent’s damp fall months, when surface rust from humidity accelerates cable fray.
- Frayed strands are visible near the bottom bracket or at the drum wrap. Lift cables are 7-strand aircraft wire. Once two or three outer strands break, the rest follow within weeks. If you can see fraying from the floor, the cable’s already done.
- The door slams down or free-falls when closing. Both cables have failed or the drum has come loose from the torsion tube. This is the dangerous version of this failure, and we treat it as an emergency because the full door weight is now riding on the spring and the rollers only.
Before
AfterReplacement Cost & What’s Included
Installed Raynor cable and drum replacement in Kent runs $130 to $250 for a single-door job, including both cables and both drums. The spread comes down to door weight and drum material: lighter single-car doors with standard aluminum drums land near the bottom of the range, while heavier double-wide doors with nylon-core or extended-profile drums push toward the top. If the torsion spring also needs work, spring repair runs $180 to $340 and we’ll quote that as a separate line item before any wrench moves.
Here’s what you get for that price: both lift cables and both drums replaced as a matched set (replacing only one side is false economy), a documented photo record of the failed parts and the completed work, and the 365-Day Done Right Promise behind the labor. Every quote is a flat, written price delivered before work starts, per Clause 1 of The Haven Standard. No surprises, no “well, once we got in there” phone calls. The price we hand you is the price you pay.
DIY or Call Us?

Let’s be straight about this part. Lift cables and drums ride under torsion spring tension, and even with the door fully raised, the residual load is enough to cause serious injury if a cable lets go while you’re working. We recommend against DIY replacement here. What you can safely do is inspect: open the door and look at the bottom bracket where the cable attaches, check for frayed strands, and note whether the cable sits cleanly in the drum groove. That’s useful information to share when you call.
Where DIY tends to go wrong is the drum alignment. If the set screws on the drum aren’t torqued in the right sequence, the cables wind unevenly and the door jams on the first cycle. We’ve rebuilt several Raynor doors in Kent after a weekend attempt ended with the door off its track. If you’re in that spot, call (425) 906-3489 and we’ll get a named technician out with the right parts on the truck.
FAQs
Raynor lift cables average 8 to 12 years in Kent’s climate, with drums lasting 15 to 20 unless a cable failure scores the groove badly enough to require replacement. Homes near the Green River valley see faster cable wear because the higher ambient moisture accelerates corrosion on the galvanized strands, even inside a finished garage.
No. A frayed lift cable cannot be spliced or patched safely, and any company offering to do that is putting your door at risk. The cable is a single continuous length under torsion load; once strands begin separating, the structural integrity is gone. Replacement is the only correct repair.
Most single-door Raynor cable and drum replacements take 45 to 90 minutes from arrival to final cycle test. Replacing both cables and drums is routine work for our techs, and we carry the common Raynor drum profiles and cable lengths on the truck for same-day completion.
Yes. We carry 3/32-inch and 1/8-inch lift cable, standard 4-inch aluminum drums, and nylon-core Raynor-compatible drums on every truck. If you have an oddball extended-height setup, we’ll measure it on site and either pull the right part from a neighbor truck or schedule the install within a day or two. Call (425) 906-3489 and we’ll tell you what’s on the truck before we roll.
Yes, estimates are free, and they’re written, not verbal. You receive a flat price and a written scope before any work begins, along with photos of the failed cable and drum. Bring in a written estimate from another company and we’ll give you a free second opinion, no coupon or code required.
If your Raynor door is sitting crooked or you heard that snap, call (425) 906-3489 for a free estimate. We’ll name the part, quote the price, and do the work, in that order.
Written by Marcus Deller, Owner, Servo Garage Doors Kent at Servo Garage Doors Kent, serving Kent and nearby areas.






Before
After
Before
After
Before
After