Raised-panel steel
Carriage house
Modern flush
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LiftMaster openers
Chamberlain openersFull 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.
Get your free estimateFast, Reliable Garage Door Repair Across Westmont
Garage door repair in Westmont typically runs $150 – $600, and most spring, cable, and track jobs are done same-day. Westmont’s post-war homes put garages at the rear or side of the lot on narrow alleys and side driveways, which changes how every repair needs to be approached. Our technicians know those tight clearances and work around them without trial and error. If your door is off its tracks, your springs have snapped, or your opener is grinding, call Onyx Garage Door Service at (877) 588-8251 for a free estimate. We’re based in Los Angeles and respond quickly to 90047 and the blocks around it.
Why Onyx Garage Door Service Is Westmont’s Preferred Garage Door Repair Company
Westmont homeowners deal with a specific set of garage problems that a generic repair company doesn’t anticipate. The homes here were mostly built between the 1940s and 1960s, and the original doors are often wood or early metal sectionals with chain-drive openers that have been patched and adjusted for decades. Our techs see these doors constantly. We know which springs fit the original one-car setups, which openers still have available parts, and when a door is worth rebuilding versus replacing.
Reviews from Westmont customers consistently point to the same things: the technician arrived knowing the house layout before we got there, the diagnosis was specific, and the price was quoted before any work started. Ruben Castillo runs every job with that standard. Whether it’s a torsion spring on an alley-facing door near Van Ness Avenue or a cable that’s chewed through on a side-driveway garage off Normandie, the work gets done clean and the door balances right when we leave.
Styles & brands we work with






Commercial Garage Door Repair in Westmont
Commercial garage door repair in Westmont covers the roll-up and sectional doors on small businesses, churches, multi-unit garages, and converted storefronts along Vermont Avenue, Normandie, and the industrial edges near the 110. These doors cycle far more often than residential doors, and when a spring breaks or a roller seizes, the door usually can’t wait a week. We handle the same eight brands we service in residential work: LiftMaster, Chamberlain, Genie, Clopay, Amarr, Wayne Dalton, Craftsman, and Raynor. A commercial cable repair in Westmont runs $130 – $250; a spring replacement $180 – $340; a full Garage Door Repair on a commercial sectional typically lands between $150 and $600 depending on what’s failed.
Roll-Up and Steel Sectional Doors
Westmont’s older commercial buildings have a mix of steel roll-ups and light sectional doors. We carry replacement rollers, hinges, weather seals, and torsion springs sized for commercial cycle counts, and our trucks keep the common brands on board.
Security Openers and Rolling-Code Remotes
For storefronts and shared garages, we install and repair LiftMaster and Chamberlain commercial openers with rolling-code remotes and keypads. If a tenant remote has gone missing or a door isn’t closing on the sensor set, that’s a same-day fix in 90047.
Garage Door Cable Repair in Westmont
Garage door cable repair in Westmont is one of the most common jobs we’re called for, and the cause here is usually the same: a car parked tight to the rail in a narrow alley or side driveway. A cable that’s frayed or off its drum stops the door from lifting evenly, and if the cable snaps while the door is partway up, the door can drop hard. Cable repair in Westmont runs $130 – $250. We replace both cables when one fails, because the second is usually in the same condition. And because cables run under the same torsion the springs do, we’ll always check spring condition on the same visit.
Frayed or Off-Drum Cables
When a cable jumps the drum, the door tilts as it lifts. That usually means the drum set screw loosened or the tension slipped. We rewind the drum, set the tension, and verify the door balances before clearing the job.
Rust and Wear on Alley-Facing Doors
Morning marine-layer moisture and Santa Ana dust settle on exposed metal doors facing Westmont alleys. Cables corrode, rollers grind, and hinges develop play. We’ll call out what’s wearing and replace it before it becomes a dropped-door emergency.
Trusted Brands We Service in Westmont
LiftMaster, Chamberlain, Genie, Clopay. We work on your brand, not just the one we prefer to sell. Westmont’s post-war garages have a mix of original doors and decades of opener upgrades, so a fix here often means repairing a LiftMaster opener mounted on a Clopay door that was hung in 1998. We keep parts for all of these in our trucks, so a spring, sensor, or cable job usually doesn’t need a second trip. From a broken spring to a full new installation, one company, one call.
See the difference
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AfterCommon Garage Door Repair Problems We See in Westmont Homes
- Openers straining on original one-car doors. Torsion and extension springs on doors that were installed in the 1950s and 60s are usually at the end of their cycle life. The opener ends up doing the lifting, which reads as an opener fault, but the spring is the real source. We diagnose the spring first.
- Track alignment and cable wear from tight driveways. Vehicles jockeying in and out of narrow side driveways bump the tracks and stress the cables over years. A door that shudders or bounces as it rolls usually has a track that’s out of parallel or a cable that’s about to let go.
- Heat-warped wood panels on rear-facing doors. Dry inland summer heat bakes original wood sectional panels, especially on doors that face west or south. Warped panels bind in the tracks, which strains the opener and wears rollers unevenly. We can often straighten and reinforce, or replace an individual panel for $250 – $500.
- Rusted hinges and rollers from morning damp. The marine layer that settles over Westmont in the morning puts condensation on exposed metal garage hardware. Add Santa Ana dust, and you get grinding rollers and stiff hinges. We replace nylon and steel rollers for $110 – $220 on most doors.
Pricing for Garage Door Repair in Westmont, CA
| Service | Price Range in Westmont |
|---|---|
| Spring Repair | $180 – $340 |
| Cable Repair | $130 – $250 |
| Opener Repair | $120 – $320 |
| Track Realignment | $120 – $240 |
| Roller Replacement | $110 – $220 |
| Panel Replacement | $250 – $500 |
| Garage Door Repair | $150 – $600 |
These are real ranges for Westmont’s market. The price is quoted and agreed before any work begins. If we find a spring, cable, or sensor problem that wasn’t in the initial quote, we stop and show you before adding a dollar. Estimates are free, and a quote holds for the job as scoped. Call (877) 588-8251 and describe the door and the failure. We’ll give you a written number before any tech arrives.
We Also Serve Cities Near Westmont
Onyx Garage Door Service covers Westmont and the surrounding South LA neighborhoods. We’re regularly in Westmont for alley-facing repairs, and we run calls into View Park-Windsor Hills, Inglewood, Florence-Graham, and Ladera Heights as well.
Serving Westmont, CA — Our Local Coverage Area
We’re based in the Westmont area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Garage Door Repair in Westmont
Yes. That’s the standard Westmont job for us. A side-driveway garage off a residential block near Van Ness Avenue had a Wayne Dalton sectional whose chain-drive opener was grinding because a worn torsion spring had thrown the door balance off. Working in about two feet of clearance with a car parked tight to the track, our tech swapped the torsion spring, realigned the track, and reset the photo-eye sensors so the door closed clean and the LiftMaster opener stopped stalling. Tight clearances are not an obstacle; they’re the reason you call someone who knows the setup. Call (877) 588-8251 for a free estimate.
The spring has usually lost its tension or snapped, and the opener is now trying to dead-lift the door. That’s a spring-cycle diagnosis, not an opener replacement. On Westmont’s original 1950s and 60s doors, torsion springs last 10,000 – 20,000 cycles, and when they fatigue, the strain shows up as an opener that stalls or reverses. We test the balance with the opener disengaged to confirm before quoting spring work at $180 – $340. Call us for an inspection.
Most repairs in Westmont fall between $150 and $600. Spring repair runs $180 – $340, cable repair $130 – $250, opener repair $120 – $320, track realignment $120 – $240, roller replacement $110 – $220, and panel replacement $250 – $500. The quote is agreed before any work starts. Call (877) 588-8251 for an exact price on your door.
It’s almost always repairable. Hinges and rollers are wear parts designed to be replaced. Roller replacement in Westmont runs $110 – $220 for nylon or steel on most doors, and hinge replacement is similar. Rusted components get swapped, the track gets cleaned and lubricated, and the door runs quieter than it has in years. We’ll only recommend a new door if the panel metal itself is rusted through in load-bearing areas.
Yes to both. We repair and replace commercial roll-up and sectional doors across Westmont, especially along Vermont Avenue and Normandie. We install LiftMaster and Chamberlain commercial openers with rolling-code remotes, keypads, and photo-eye safety systems. If a remote’s gone missing or the door’s being propped open, that’s a security issue we can address same-day in 90047.
Call Onyx Garage Door Service at (877) 588-8251 for garage door repair in Westmont. Free estimates, no pressure, and a real technician on the phone.
Written by Ruben Castillo, Owner at Onyx Garage Door Service, serving Westmont and South Los Angeles.