Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Linear Gate Repair in Pasadena: What to Know First
Linear gate repair in Pasadena typically runs $180 to $640 for most operator and hardware fixes, and we complete the large majority of Linear jobs in a single visit. You will get a written price before any work starts, not a range that shifts after we open the panel. This page is for Pasadena homeowners whose Linear gate operator is grinding, dead, stuck open, or reversing for no reason you can find.
Call (626) 624-4196 and a live person answers, any hour. We service every Linear swing and slide operator we see in Pasadena driveways, from LSO and LDO swing arms to SL slide units, as an independent Linear service provider. If the gate won’t move, we name what we found, write down what it costs, and leave it working.
How Linear Products Fail - and How We Fix Them
- LSO/LDO swing-arm operators: stripped worm gear from a worn limit cam. The LSO series uses a worm-drive transmission, and when the limit switch cam wears down, the arm keeps driving past its travel stop. That over-travel strips the bronze worm gear teeth. A Pasadena homeowner hears a grinding noise for a few days, then the arm just whines without moving the gate leaf. We replace the gear set, reset both limit cams, and photograph the new limit positions before we leave.
- SL slide operators: master/secondary board communication loss. Linear SL slide units on paired gates run a master and secondary control board linked by a low-voltage data line. Water intrusion at the secondary enclosure in older Pasadena installations corrodes the terminal strip, and the secondary gate stops responding. The operator still powers up, which throws off a lot of diagnostics. We find the corroded terminals, strip and re-terminate, and seal the enclosure properly.
- APeX and MegaCode receivers: phantom openings after a neighborhood power flicker. Both receiver families can lose their stored transmitter codes after a brownout, but here’s the part that surprises people: the receiver doesn’t go blank. It reverts to a corrupted code table where one or two remotes still work and the rest don’t. Homeowners assume the remote batteries died. We re-learn all transmitters, verify each one at the gate, and write the transmitter count into the job record.
- Mighty Mule and Linear crossover jobs: aftermarket actuator arms wearing the gate bracket. When a previous installer used a universal swing-arm kit on a Linear-ready gate, the arm geometry is usually off by a few degrees. That misalignment pounds the gate bracket until the bolt holes oval out. We machine-shim or replace the bracket, correct the arm geometry to Linear spec, and torque everything to the numbers in the install manual.
- Photo-eye faults on older Linear models misreported as board failures. Linear’s pre-APeX operators show a “photo-eye blocked” fault code when the beam is actually fine, because the photo-eye relay on early boards sticks in the closed position. The fix is cleaning and re-seating the relay, not replacing the board. We’ve saved Pasadena customers hundreds of dollars on this exact call, because the correct repair is a relay service, not a control board replacement.
Our Linear Gate Repair Process

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You call, we answer. A live person takes down the gate type, the Linear model if you know it, and what the gate is doing or not doing. We schedule a window that actually works.
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Diagnostics on site. The tech opens the operator cover and checks the obvious first: input power, fuses, limit cam positions, and error codes. On Linear operators we also test the photo-eye relay and the receiver code table, because those two things cause more false “bad board” calls than anything else.
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Written price before work. You see the part number, the part cost, the labor, and the total, in writing, before we touch a tool. If the problem is a $40 relay instead of a $300 board, that’s what the quote says.
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The repair. We use OEM Linear parts when they are available and when the repair is under manufacturer warranty. For out-of-warranty work where an OEM part is back-ordered, we offer quality aftermarket equivalents from suppliers we have used for years. You decide before we order anything.
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Test and document. We cycle the gate ten times minimum, test the safety edges and photo-eyes, and verify the force settings. Before we leave, you get a photo log of what was found, what was replaced, and the final limit-switch positions.
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365-Day Done Right Promise. If the repair is not right, we make it right at no charge within that full year. No argument, no fee, no expiration games.
Before
AfterWhat Linear Gate Repair Costs in Pasadena
Most Linear repair jobs in Pasadena land between $180 and $640. Here is where the money goes on the common scenarios:
- Photo-eye realignment or relay service: $180-$260
- Limit switch or limit cam replacement on LSO/LDO operators: $220-$340
- Receiver re-learn or transmitter programming (all transmitters): $120-$180
- Worm gear replacement on LSO/LDO swing arms: $380-$520
- Control board replacement, OEM or quality aftermarket: $340-$640
- Full swing-arm operator swap (labor included, existing arm bracket intact): $520-$780
What moves the price: whether the gate is swing or slide, whether the existing arm bracket is salvageable, and how much corrosion has set in on older Pasadena installations near the Arroyo where morning marine layer sits on the hardware. You get the exact number in writing before work starts, every time. Call (626) 624-4196 for a free estimate.
Why Pasadena Homeowners Call Vance Gate Repair Pasadena for Linear Work

Seventeen years is long enough to see which gate operators age well and which ones don’t. Linear operators are common in Pasadena driveways, and they have their own failure patterns that a generalist gate company misses. We know the LSO worm-gear issue, the SL terminal corrosion problem, and the APeX receiver quirk, because we have repaired all of them across this city more times than we can count.
Adrian Vance started doing access-control work in 2014 and has kept the same habit ever since: a written price before any work starts, and a documented record when the job is done. For Pasadena homeowners who own a Linear operator, that record matters, because it means the next technician doesn’t have to guess what was done.
The team also services LiftMaster, Mighty Mule, Ghost Controls, and DoorKing, so if your gate has a mixed-brand setup, one call handles all of it. We don’t steer you toward replacing a Linear unit when the repair costs less than half the price of a new operator. The math is on the written quote, and you make the call.
Name what you found. Name what it costs. Leave the gate working.
FAQs
Linear’s gate operator line was absorbed under the Nortek Control umbrella and later transitioned through Nice/Nortek, which means some older Linear models are no longer manufactured. Parts for many LSO, LDO, and SL units are still available through distribution channels and aftermarket suppliers. Where an OEM part is discontinued, we match a quality aftermarket equivalent and note it on the written quote before we order anything.
Independent repair does not automatically void a manufacturer warranty, though Linear’s warranty language excludes damage caused by unauthorized modifications. We use OEM parts for in-warranty repairs and we do not modify boards or bypass safety circuits, which keeps the repair warranty-safe. That said, most Linear operators in Pasadena we see are well past the factory warranty period, and we price repairs accordingly.
Intermittent remote function on Linear operators is usually the receiver losing its code table after a power fluctuation, or a photo-eye relay that sticks and blocks the open command. The first thing we test is the receiver’s code table and the photo-eye relay, because those are the two most common causes on APeX and MegaCode units. It is rarely the remote itself. Call (626) 624-4196 and we’ll run the exact test on your gate.
A Linear gate stuck open on a Pasadena property is a security problem, and we treat it that way. We work emergency gate repair into the schedule, and a live person answers the phone around the clock. For a gate physically stuck in the open position, we can often get a tech to you the same day, depending on where the schedule sits when you call.
The honest answer depends on three numbers: the cost of the repair, the age of the operator, and the condition of the gate hardware. If the repair quote is under half the cost of a new operator and the gate itself is sound, repair makes sense most of the time. If the operator is over 15 years old and the arm bracket or gate rails are also failing, replacement starts to look smarter. We put both numbers in writing and let you decide, no pressure either way.
When your Linear gate is down, call (626) 624-4196. A live person answers, we schedule a visit, and the price is in writing before any work begins. Free estimates in Pasadena and the surrounding areas.
Written by Adrian Vance, Owner, Vance Gate Repair Pasadena at Vance Gate Repair Pasadena, serving Pasadena and nearby areas.




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