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Linear Gate Motor Replacement: The Katy Owner’s Guide
We stock Linear-compatible gate motors and complete most replacements in Katy the same day, with installed pricing typically running $850 to $1,650 depending on the model and whether the arm bracket and wiring are intact. Most owners discover the failure the same way: the gate moves halfway, groans like it’s dragging a cinder block, then gives up entirely. Or it opens fine but refuses to close, which is how half the service calls in Cinco Ranch start their Monday morning.
What you’re usually hearing is either a stripped gearbox, a capacitor that’s done, or a control board that’s lost its limit memory. By the time a Linear operator reaches that point, replacing the motor unit is frequently cheaper than chasing the failure part by part. We’ll tell you which one applies to your setup before you spend a dollar, in writing.
Which Linear Models This Applies To
Most Katy properties with Linear operators run one of three lines: the older LDO series, the LS series swing arms, or the more common LDCO and APeX residential operators. The model number lives on a silver tag on the side or underside of the operator housing, and it’s usually four to six characters: LDO50, LS050, LDCO801, or APeX 2000 if the home was built after roughly 2018.
Here’s the compatibility gotcha that saves people money: the LDCO801 and APeX share the same mounting bolt pattern across several years, but the limit-switch harness changed between revisions. We’ve matched brackets that bolted up perfectly only to find the six-pin connector was keyed differently. That’s the kind of detail that turns a 90-minute swap into a two-day parts hunt if you order blind online.
OEM Linear motors are what we recommend for operators under warranty or when you plan to keep the home for a decade. For out-of-warranty systems, a quality aftermarket equivalent from a company like National or US Automatic can run $200 to $300 less with the same duty rating. We’ll show you both prices and let you decide.
We’re an independent service provider, not affiliated with Linear. We work on their equipment every week, but we answer to the homeowner, not the brand.
Signs Your Linear Gate Motor Replacement Is Failing

- Gate stops mid-travel and reverses on its own. The limit switch or the internal encoder is losing track of where the gate actually is. In Texas heat, the limit cams inside older LDO units warp just enough to trigger a false stall.
- Humming sound, no movement. The capacitor that starts the motor is toast. This is a $30 part, but when the capacitor fails under load repeatedly, the motor windings are usually next.
- Gate moves at half speed, especially in the afternoon. Motor’s thermal overload is tripping early. We see this constantly in August across Katy when operators are bolted to dark metal posts that hit 140 degrees.
- Opens fine, won’t close, or vice versa. On Linear APeX units, this is almost always a failed directional relay or a burned trace on the control board, not the motor itself. We check this before quoting a motor replacement because sometimes it’s a $140 board fix instead.
- Burning electrical smell or a dead keypad after a storm. A lightning surge or a failing motor drawing too many amps. Katy gets real lightning, and Linear boards don’t have the surge protection of a Viking or FAAC board.
Before
AfterReplacement Cost & What’s Included
For Linear operators in Katy, a full motor replacement typically lands between $850 and $1,650 installed. Slide-gate motors run higher because the chain and idler pulleys often need reshimming at the same time. Swing-arm replacements on a standard wrought-iron driveway gate usually sit in the $900 to $1,300 range.
That price includes the motor, all labor, disposal of the old unit, and a check of the photo-eye alignment, arm bracket, and power supply before we bolt anything down. The written quote you sign before work starts is the exact number you pay. No discovery fees, no “while we were in there” extras. If the gate’s power run or the safety edges need attention, that’s called out separately on the estimate before you authorize anything.
Every Linear motor we install is covered by the 365-Day Done Right Promise. If it isn’t right within a year, we make it right at no charge.
DIY or Call Us?

You can safely do three things yourself: confirm the operator has power (check the breaker and the GFCI outlet on the gate post), read the model number off the silver tag, and note exactly what the gate does when you press the opener. That last detail saves a service call’s worth of diagnosis time.
What you shouldn’t do is open the operator housing on a Linear unit that’s still connected to line voltage. The capacitor inside holds a charge long after the breaker is off, and the board carries 120V in several places. We’ve seen homeowners take the cover off to “just look” and end up with a shock and a dead board. If the operator is humming, smoking, or mid-travel failing, the safest next step is a call to (346) 818-3319. We’ll name the problem, give you the written price, and do the job same day if the part’s on the truck.
FAQs
Seven to ten years is realistic for a Linear operator in Katy’s heat and humidity, with slide-gate motors on the shorter end of that range because they cycle under full load. We regularly replace Linear units installed during the 2015-2017 building wave around Grand Lakes that are just now hitting end of life. Call (346) 818-3319 and we can check your model’s age from the serial number.
Sometimes, and we’re honest about when: a capacitor, a limit switch, or a relay is a worthwhile repair on a motor under five years old. When the armature, gearbox, or the board’s relay contacts have failed, the repair parts approach the cost of a new motor with less remaining lifespan. We’ll quote both options and let the numbers decide.
About two to four hours for a standard swing-arm replacement, including setup of the limit stops and a full test cycle. Slide-gate replacements can push into four to six hours if the chain, idlers, and track brackets need repositioning. You’ll know the time before we start, because it’s on the written estimate.
Our trucks carry the most common light-duty and residential Linear motors, along with a stock of OEM and aftermarket boards, capacitors, and harness parts. For heavier Linear slide operators, we pull from our local Katy supplier inventory and can usually have the motor in hand within 24 to 48 hours. Call (346) 818-3319 with your model number and we’ll tell you what’s on the shelf today.
Name what you found. Name what it costs. Name what you left behind. That’s how Adrian Vance has run every gate job since 2014, and it’s how we handle every Linear motor replacement in Katy. Call (346) 818-3319 and a live person will answer, day or night.
Written by Adrian Vance, Owner, Vance Gate Repair Katy at Vance Gate Repair Katy, serving Katy and nearby areas.





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