A Portcullis company - serving San Jose, CA

Linear Gate Motor Replacement Nationwide

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Linear Gate Motor Replacement: The San Jose Owner’s Guide

If your Linear gate motor has died or is dying, here’s the short version: we stock Linear-compatible replacement motors and operators on our trucks, and most residential swaps in San Jose run between $850 and $1,600 installed, depending on your model and whether we’re replacing just the motor head or the full operator assembly. Most single-family gate motor replacements are done the same day we arrive. You’ll usually know it’s the motor and not something cheaper when the gate hums but doesn’t move, or trips the breaker every time it tries to open.

Call (669) 800-5686

We’re Portcullis Gate Repair San Jose, a Kingswell company operating here since 2008. We service Linear equipment all over the city, from older LS and LR series operators to newer LRA residential swing arms and the heavier SL slide-gate motors. If you’re not sure what you have, that’s fine. We match the part by the model plate, not by guesswork.

Key Takeaways

  • Installed Linear gate motor replacement in San Jose typically costs $850 to $1,600.
  • We carry Linear-compatible motors and the matching control boards, limit switches, and gears on the truck.
  • Every job gets a written price before we turn a wrench, and a written 365-day guarantee on the repair.
  • Most swaps take 2 to 4 hours on site, and we answer the phone 24/7 at (669) 800-5686.

Which Linear Models This Applies To

Linear has been a workhorse brand in residential gate operators for decades, and we see three families of them around San Jose: the LS series (LS900, LS1050, and similar slide-gate operators), the LR series (linear ram and screw-drive units used on swing gates), and the more recent LRA residential swing-gate arms. Each uses a different motor style and mounting pattern, so a motor from an LS won’t bolt into an LRA, and an LR arm won’t run on an LS control board without adapters.

The fastest way to identify what you need is the silver data plate on the side of the operator. It lists the model number, the voltage (usually 115V or 230V), and the horsepower rating, typically 1/3 HP on residential swing gates and 1/2 HP on larger slide gates. A good compatibility gotcha: Linear made both 115V and 230V versions of some slide operators, and the motor windings are not interchangeable. If you ordered a replacement online without checking the plate, that’s the mistake that usually bites people.

On the OEM-versus-aftermarket question for Linear specifically, here’s our honest take: Linear’s current motor assemblies are reliable, but some older LS-series units use motors that are no longer manufactured. For those, we use a quality aftermarket equivalent that matches the shaft size, mounting bolt circle, and RPM range, and we’ve had good results with that approach on gates in Almaden Valley and Evergreen. We always tell you before the job whether we’re using a Linear-branded part or an equivalent, and the price changes accordingly. We stock both on the truck when we can.

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Styles & brands we work with

Wrought iron
Wrought iron
Wood & steel frame
Wood & steel frame
Farm & ranch
Farm & ranch
Sliding driveway gates
Sliding driveway gates
LiftMaster operators
LiftMaster operators

Signs Your Linear Gate Motor Replacement Is Failing

These are the five symptoms we hear most on service calls in San Jose. Each one has a specific mechanical reason behind it.

  • The gate hums but doesn’t move. This usually means the motor is getting power but the capacitor has failed, which is the small cylinder that gives the motor its starting kick. A bad capacitor can sometimes be replaced on its own, but if the motor has been humming like this for weeks, the windings may have overheated and the whole motor is done.
  • The breaker trips when the gate tries to open. A motor that pulls too much current is on its way out. This is common on Linear operators in damp San Jose winters when moisture gets into the motor housing and the windings start breaking down internally.
  • The gate moves slower than it used to. Linear slide operators especially lose speed when the motor bearings wear or the internal gears get sloppy. By the time you notice it, the motor is working harder than it should be, and hard work shortens what’s left of its life.
  • It opens partway and reverses. That’s often the limit switches drifting or a weak motor stalling under load. On Linear systems, the limit switch assembly sits right on top of the motor, so a replacement motor usually comes with new limits adjusted to your gate’s exact travel.
  • The motor makes a grinding or rattling sound. Bearing wear inside the motor housing is the culprit, and there’s no in-field repair for that. Once the rotor is rattling against the stator, the only fix is a new motor.
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Complete Upgrade

Replacement Cost & What’s Included

Here’s the range we quote on Linear gate motor replacement in San Jose, and what moves you toward the top or bottom of it.

Replacement Scenario Typical Installed Price
Residential swing-gate arm, 1/3 HP (LRA-style) $850 – $1,150
Residential slide-gate operator, 1/2 HP (LS-style) $1,000 – $1,600
Replacement capacitor or limit switch only $140 – $320
Full operator swap (motor, board, housing, arms) $1,600 – $2,400

The big drivers are whether we’re swapping just the motor or the whole operator, whether your gate is swing or slide, and the condition of the surrounding hardware. A gate with a rusted chain sprocket or a bent track will cost more because we address those while we’re in there. You get a written price before we start, and that price doesn’t change unless we find something significant and you approve it first.

Every Linear motor replacement we do carries the 365-Day Done Right Promise. If the repair fails inside that year, we come back and make it right at no charge. That’s written on the invoice, not just promised over the phone.

DIY or Call Us?

Here’s where we draw the line, honestly. You can safely check a few things yourself: confirm the breaker isn’t tripped, verify the gate isn’t physically stuck on something, and listen for whether the motor hums when you press the open button. That’s useful information to have when you call us. What you should not do is open the operator housing and start swapping a motor yourself.

Linear gate motors carry live 115V or 230V power, and the capacitor inside stores enough charge to knock you even with the breaker off. There’s also the physical risk: a swing gate under tension can move suddenly when you’re unbolting the arm. Dean Prescott has been doing this long enough to say plainly: this is a job for a trained tech with the right meter and the right torque specs. If you’ve already taken it apart and it’s not going back together, call us at (669) 800-5686. We won’t lecture you; we’ll just fix it.

I’ll give you the number before I touch a single bolt, that’s just how it should work.

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