Faults
Crooked, One Side Higher
A Richardson garage door sitting crooked, higher on one side than the other, almost always points to a broken or slack cable, not the opener. Here's how to tell which side and how urgent it is.
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Richardson, TX
When a Richardson Garage Door Climbs Crooked
A crooked garage door in Richardson usually points to a worn drum.
A drum is the grooved wheel at each end of the spring shaft that the lift cable winds onto. Almost nobody looks at one, because almost nothing about it is visible from the driveway. When the groove wears out of shape, or the drum creeps along the shaft after its set screws loosen, the two sides stop taking up cable at the same rate. The door then climbs crooked, binds at one corner, and puts a load meant for two cables through one.
Tension comes off first, in stages, with the door clamped, because a drum under load cannot be freed without the door falling. Drums are renewed in pairs, and the shaft and end bearing plates get inspected while everything is open, since a drum that has slipped has usually damaged the seat its screw bites into. Winding back on is what decides whether the door hangs true: the cable tension has to match side to side before the opener is reconnected, or the same corner drops within weeks.
Across Dallas County, whether you're in Crowley Park, Buckingham, Plano, or elsewhere around Richardson, cable drum replacement is worth arranging with somebody who works on this housing stock rather than a generic plan. Foundation type, soil and building age all change what has to happen first.
For a private home, residential garage door repair sets out what a visit involves. For a shop, office, or tenanted building, commercial garage door repair is the right starting point.
Warning Signs
Signs You May Need Cable Drum Replacement
A Groove Worn Into the Drum
Cable drum replacement in Richardson starts with a look at the drum face, the spooled piece at each shaft end that takes up cable as the door climbs. A clean, factory-cut spiral should show. A second track cut into the metal, off to one side of that spiral, means the cable has been riding somewhere it should not, and the drum feeding it is due for a swap before that groove pulls cable off its path entirely.
A Drum Slipping on the Shaft
The cable drum grips the shaft with a set screw, and on Richardson garages that screw can back out after years of triple-digit summers and winter freeze cycles flexing the metal. Once it loosens, the drum spins loose on the shaft instead of turning with it. The door will drop unevenly or stop responding to the opener. Cable drum replacement resets that grip so the shaft and drum move together again, which the cable alone cannot fix.
A Shifted End Bearing Plate
Every garage door shaft rests in an end bearing plate at each end, bolted to the frame where the track begins. If that plate shifts, even slightly, the shaft tilts and the drum mounted on it no longer sits level. Richardson slab foundations move with the clay underneath them, and that slow shift can knock a bearing plate out of position over time. A crooked drum on a tilted shaft wears unevenly, so replacing the drum without resetting the plate just repeats the problem.
How It Works
Cable Drum Replacement Process
Drum Inspection in Richardson, TX
First, the pros look at why the door is climbing crooked, checking each drum for a second groove worn into the metal and confirming whether the set screw is still gripping the shaft the way it should be.
Cable Release in Richardson, TX
The door gets braced against the track so it holds still, then the cable is freed from the worn drum before either drum comes off the shaft, keeping the assembly from shifting once the load is off it.
Matched Drum Install in Richardson
A matched drum pair goes on the shaft next, seated flush against the bearing plate on each end, with the set screw torqued down enough that neither drum can spin or slide once the door is back under tension.
Level Check in Richardson, TX
Once the new drum is set, the licensed pros we connect you with raise and lower the door several times and watch the shaft turn on both ends. This confirms the drum is feeding cable evenly and the door reaches full open sitting level, not tilted toward one track.
Why this matters
Richardson garages sit on slab foundations poured on shifting Blackland Prairie clay, and that ground movement puts steady stress on the shaft assembly over the seasons. A worn cable drum or a shifted end bearing plate does not stay a small problem here; it throws the door out of level, and a door climbing crooked keeps straining the same bracket until something on that side gives way.
Licensing & Local Standards
Code-Compliant Cable Drum Replacement in Texas
Slab Movement and Drum Wear
Most Richardson garages sit on a slab foundation poured directly on expansive clay, and that clay shifts with North Texas heat and rain through the year. As the slab moves, the garage opening can go slightly out of square, and a shaft or drum that was level when installed can end up carrying more strain on one side. Homes near Cottonwood Creek or Spring Creek see this as much as anywhere else in the city.
Winter Freeze on an Aging Drum
North Texas heat swings hard between a January freeze and a triple-digit summer, and that swing works on the shaft and drum assembly even though it never sees coastal salt. Metal expands and contracts, grease on the shaft thickens in a cold snap, and a set screw already loose finds it easier to walk under that stress. A pro checking a Richardson drum should test that screw and the shaft surface under it every visit, not just the cable groove.
Plain Numbers
Cable Drum Replacement: Estimated Cost by Job Size
Here is roughly what cable drum replacement may cost locally. Treat it as a guide until the licensed pros we connect you with confirm the written scope.
| Where It Shows Up | Common Build Era | Worth Checking Too |
|---|---|---|
| Springs weaken slowly, so a door that feels heavier each month rarely gets noticed until lifting it by hand becomes a real effort. Waiting past that point risks a cable snapping under load. A proper spring swap restores balance and stops the opener from absorbing stress it was never built to carry. | Photo-eye realignment, cable inspection, opener force test, full lubrication | an estimated $125–$450 |
| A community with an architectural review process on exterior changes can turn a same-week door swap into a multi-week wait, since panel style and color sometimes need approval before an order goes in. Checking that requirement early avoids a door sitting half-installed on a timeline nobody planned for. | Cracked spring removal, safety cable install, tension bar reset | an estimated $150–$645 |
| A door can look perfectly straight from the driveway and still ride a track bent just enough to bind partway through its travel, a flaw that only shows up while the door is actually moving, not while it is sitting still. | Flood-prone bay bottom seal swap, threshold gap sealed against runoff | an estimated $225–$1030 |
| Older wood doors swell and stick in ways steel sectional doors never do, since humidity moves through wood grain differently than it moves through a metal skin. A door that only sticks seasonally is telling you something about material, not about the opener pulling it. | New door, smart opener install, sensor wiring for slab-set garages | an estimated $360–$1715 |
Hardware fatigue rarely happens on just one side. If one hinge or cable shows wear, the matching one is usually close behind, and pricing a single-side fix without checking the other side tends to mean a second bill within the year.
Questions & Answers
Frequently Asked Questions
Why is one side of my door lower?
That's a drum problem before it's anything else. The drum on one end of the shaft is winding cable at a different rate than the other, usually from a worn groove or a loosened set screw. Watch the door from inside the garage as it closes — one side reaching the floor before the other points straight at the drum, not the springs or the track.
Can a worn cable drum damage my garage door track?
No. A track only bends from an impact or from hardware pressing against it, and that is a separate repair. A drum problem shows up as a lean without any dent or kink in the rail itself. Run a flashlight down both tracks; if they look straight but the door still leans, the shaft assembly is where to look next, not the track.
Do both cable drums need replacing at the same time?
Yes, both come off as a pair even if only one shows damage. They wind cable at the same rate only when they match in size and wear. Put a fresh drum on one end and leave a worn one on the other, and the door will lean toward the old side every time it closes, which defeats the point of swapping either one.
Does Richardson's winter freeze wear out drums faster?
More than weather does. A Richardson winter freeze can stiffen the cable enough to make a marginal drum show its wear sooner, but the underlying cause is usually cycle count built up over years of regular use, not the cold itself. Homes near Prairie Creek or older sections like Richardson Heights tend to show wear on whichever drum has logged the most opens and closes.
Why does my garage door drum slide on the shaft?
Check the set screw. It sits on the drum, right where the drum meets the shaft, and its job is to keep the drum from turning independently. If that screw has backed out or stripped its bite into the shaft, the drum will spin loose or creep sideways under load instead of turning with the shaft the way it is built to.
How long does cable drum replacement take?
Most drum replacements finish in one visit. The licensed pros we connect you with unwind the torsion spring first, since the shaft has to come free of tension before the drum can be pulled and reset. After that, it's checking the set screw, seating the new drum against the end bearing plate, and running the door through its full range.
How much does cable drum replacement cost in Richardson?
The estimated guide range for cable drum replacement in Richardson is $149–$429 for this work. The licensed pros we connect you with must confirm the actual scope and charges directly.
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Clay soil under Richardson slabs shifts with every wet spring and dry August, and that movement is what nudges a garage door track out of true. Homes near Cottonwood Heights and Arapaho Heights sit on the same slab-on-grade pattern common across the city, so binding at one bottom corner shows up again a few years later on the other side. A licensed pro can true up the track without replacing hardware that still has life left. Get a fixed price before anything comes apart.
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