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Linear Gate Motor Replacement: The Los Angeles Owner’s Guide
We replace Linear gate motors across Los Angeles every week, and the installed cost typically runs from $750 to $1,450 depending on the model series and arm assembly involved. We stock Linear-compatible motors and control boards on our trucks, so most jobs are done the same day or next morning. What usually tips an owner off is the gate groaning through mid-travel, then refusing to open at all on a Monday when everyone’s trying to get to work.
The unit sits out in LA heat, smog, and marine air depending on how close you are to the coast. The control board corrodes first, then the capacitor, then the limit switches. By the time it’s dead, the gate is stuck wherever it parked. That’s the moment most folks call us.
Key Takeaways
- Installed Linear gate motor replacement in Los Angeles: $750-$1,450 for most residential swings and slides.
- The motor is rarely the only worn part; we check the arm, board, and gear assembly before quoting.
- Same-day replacement is realistic for most Linear models we carry.
- We’re an independent shop, not a Linear dealer or corporate service arm.
- Every job includes our 90-Day Done Right Promise in writing, and the price is locked before we touch a tool.
Which Linear Models This Applies To
The Linear gate motors you’ll see around Los Angeles fall into a few clear families. The LDO series (LDO50, LDO33) covers light residential swing gates on single-family driveways. The LS series (LS572, LS592) steps up to heavier steel gates, and the SL series handles sliding gates on tracks. Older Linear APeX and MegaCode units still show up regularly in the Valley and on the Westside, and we keep control boards and capacitors for those older boards on hand because the board almost always fails before the motor itself.
Here’s the compatibility gotcha with Linear that catches a lot of people: the model number on the motor casing is not always the same as the model number on the arm or the board. We’ve stripped units where the motor said one thing, the arm said another, and the last installer just bolted on whatever was in the truck. If you can read the white label on the side of the motor housing and tell us what it says when you call, we can usually identify the exact OEM replacement or a matching aftermarket unit before we even roll out.
For OEM parts versus aftermarket, the honest answer is that a good aftermarket motor from a supplier we trust lasts every bit as long as the Linear-branded part in LA conditions, and it usually saves you $150 to $250 on the unit itself. We won’t push OEM unless the gate’s automation features require it. Some Linear setups tied to access control systems with MegaCode receivers play nicer with original boards, and on those we’ll tell you straight that aftermarket isn’t worth the callbacks.
Signs Your Linear Gate Motor Replacement Is Failing
- The gate opens halfway and stops, then reverses. The limit switches inside the motor are worn or the board is misreading position. In either case, the fix is internal to the motor or controller, not the gate track. We see this constantly on Linear units that have baked in direct sun for five or six summers.
- You hear a humming sound but the gate doesn’t move. The capacitor is dead or dying. A bad capacitor won’t give the motor its starting kick. It’s one of the least expensive parts and one of the most misdiagnosed problems in Los Angeles gates.
- The gate opens fine in the morning but drags or stalls in the afternoon heat. Thermal stress is rough on Linear motors in LA. As internal windings expand, a failing motor loses torque. February it’s fine; August it quits. Hal grew up in the San Fernando Valley and has watched this exact pattern since 2001.
- The remote works intermittently, but the gate doesn’t respond. The receiver board inside the Linear unit is failing, usually from moisture intrusion along the conduit. Boards corrode from the bottom up here, especially anywhere with morning marine layer.
- The gate bangs into the stops harder than it used to. Worn gears or a loosened arm connection inside the motor are throwing the travel distance off. That impact shocks the motor on every cycle, and the damage compounds fast.
Replacement Cost & What’s Included
For a Los Angeles residential Linear gate motor replacement, expect a parts-plus-labor range that looks like this:
- LDO series (light swing gates): $750-$950 installed
- LS series (heavier steel swing gates): $950-$1,200 installed
- SL series (sliding gates): $1,050-$1,450 installed
- Control board only (if the motor tests fine): $220-$385 installed
The spread depends on arm assembly condition, whether we’re running new conduit or wiring, and if the gate itself needs any realignment while we’re in there. The price quoted is the price you pay, and we agree on it before any work starts. You’ll never get a surprise invoice from Gatewood. Every job carries our 90-Day Done Right Promise in writing: if it’s not right, one call brings Hal back. No runaround.
DIY or Call Us?
There are a couple of things you can check safely without opening the motor. Confirm the breaker isn’t tripped, check that the gate itself isn’t binding on the ground or hinges, and look at the keypad or intercom wiring for visible chew marks from rats. Those three checks answer more than half the “dead motor” calls we get.
What you shouldn’t do is open a Linear motor housing and start probing. The capacitor stores enough charge to knock you on your back even with the breaker off, and if the arm is mid-tension while you’re loosening it, that’s a hand-crushing hazard. We replace these motors with the arm safely braced and the power disconnected at the source, not just at the unit. If the gate is stuck closed, call us at (877) 610-2993. If it’s stuck open, that’s a security issue and you should call even sooner.
FAQs
A properly installed Linear gate motor in LA lasts 8 to 12 years, though ones close to the coast can fail sooner because salt air gets into the board compartment and corrodes the contacts. We typically see control board failure around year six or seven, and motor failure a few years after that if the gate was never serviced.
Yes, in about 40% of cases we repair the board, swap the capacitor, or replace limit switches for less than the cost of a full motor replacement. We test the motor under load before recommending replacement, and we’ll show you the test results, not just describe them.
Most Linear gate motor replacements in Los Angeles take 90 minutes to two hours on site, assuming the existing bracket and arm are still in usable shape. If the prior installation is a mess, we’ll tell you before we start and the time adjusts accordingly.
We stock common Linear-compatible motors, boards, and capacitors on our trucks, including parts that swap cleanly into LDO, LS, and SL series units. For the older APeX and MegaCode boards we typically have replacements at the shop and can grab them same day. We also carry parts for LiftMaster, Mighty Mule, and Ghost Controls.
Call us at (877) 610-2993 for a free estimate. A live person answers, and the name on the invoice is the name on the shop.
Written by Hal Gatewood, Owner, Gatewood Fence & Gate at Gatewood Fence & Gate, serving Los Angeles and nearby areas.





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