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Get your free estimateLinear Gate Motor Replacement: The Long Beach Owner’s Guide
A Linear gate motor replacement in Long Beach typically costs between $850 and $1,900 installed, depending on your model and whether you need a full operator swap or just the motor/gearbox assembly. We stock Linear-compatible motors and gearboxes on our trucks, and in most cases we can complete the swap the same day we diagnose it, since we carry the common LDO, LS, and APeX series parts. Most Long Beach homeowners discover the problem without any warning at all: the gate was working fine yesterday, and today it hums, buzzes, or simply sits there dead while the remote clicks uselessly at it. Cole Rafferty has seen it hundreds of times, especially on older Linear operators near the coast where salt air has been eating at the control board terminals for a decade.
Key takeaways:
- Installed replacement pricing for Long Beach runs roughly $850 to $1,900 for most Linear residential models.
- Your written price is quoted and agreed before any work starts, no surprise line items at the end.
- We carry OEM Linear replacement parts plus quality equivalents for discontinued Linear models.
- Every replacement is covered by the 365-Day Done Right Promise.
Which Linear Models This Applies To
Linear built gate operators under several distinct series lines over the years, and the replacement approach differs by series. The most common units we replace in Long Beach are from the LDO50, LSO50, and APeX series, along with the older LS276 and SL series swing and slide operators. If your operator’s control board is labeled “Linear” with a model number starting in LDO, SL, LS, or APeX, this page covers the replacement path for you. Warden Gate Repair Long Beach is an independent service provider, not affiliated with Linear, which matters because Linear’s own replacement part supply for discontinued models has gotten thin, and we have spent years learning which current production parts interchange with which older series.
A practical compatibility gotcha we run into constantly: an LSO50 slide motor will not bolt into an older LS276 housing without a mounting plate adapter and a limit switch workaround, something a generic technician discovers on your driveway at your expense. We know this before we arrive. The OEM-versus-aftermarket decision for Linear specifically comes down to two things: whether your exact model is still produced, and how long you plan to own the home. For current-production APeX units, we fit genuine Linear motors and gearboxes, period. For discontinued LDO/LS-era units, we often recommend a quality-compatible motor from a manufacturer who built to Linear’s original spec, because the alternative is chasing a twelve-year-old OEM part on the used market with no warranty behind it.
Styles & brands we work with





Signs Your Linear Gate Motor Replacement Is Failing
- The gate hums but doesn’t move. The motor is getting power but the gear train has stripped or the output shaft has seized. On Linear units, the nylon drive gear inside the gearbox is the usual sacrifice part, designed to fail before the motor does. When you hear that hum, the gear is already broken.
- The gate moves slower than it used to, then stops halfway. The motor is losing torque. On a Linear slide operator, this is frequently a motor capacitor beginning to fail, a cheap part when caught early but a full motor replacement when ignored for six months.
- Intermittent opening or no response at all. The motor itself can be fine while the internal limit switch or the control board relay refuses to send it a start signal. We test the motor independently before replacing it, because a $200 relay repair should never be a $1,400 motor swap.
- You smell an acrid, electrical burning odor near the operator. The motor windings are breaking down and arcing internally. This is a full replacement situation, and you should cut power to the operator at the breaker until a technician can look at it.
- The gate opens but won’t hold closed, or reverses on its own. On Linear swing operators, this can be the motor’s internal brake wearing out. The motor still spins, but it can’t hold against wind or grade. Long Beach properties with any slope at all are harder on Linear brakes than flat lots.
See the difference
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AfterReplacement Cost & What’s Included
Here’s what you can expect to pay for a Linear gate motor replacement in Long Beach, installed:
- Motor only (swap into existing housing): $850 to $1,200 installed, most common on APeX and LDO slide units where the chassis and chain are still good.
- Full operator replacement (motor, gearbox, board, housing): $1,400 to $1,900 installed, typical when the original unit is 12+ years old and multiple components have failed.
- Aftermarket motor for discontinued Linear models: $750 to $1,100 installed, depends on the model and whether a mounting adapter is required.
The spread comes down to which model you have and whether the wear stopped at the motor or traveled into the gearbox and board. Our written quote covers parts, labor, travel within Long Beach, and testing before we leave. You sign it before we touch anything. No allowed overage, no end-of-job additions. Every replacement motor and gearbox carries our 365-Day Done Right Promise: if it fails within a year, we return and fix it free.
DIY or Call Us?
There are two things you can safely check before calling anyone. First, confirm the operator has power: is the breaker on, and does the outlet or disconnect feeding the gate motor have voltage? Second, check the obvious mechanical bind: can you move the gate by hand using the manual release, and does it roll or swing freely without scraping? If the gate moves freely by hand and there’s power present, the problem is inside the operator, and this is where DIY stops being a good idea. A Linear gate motor contains a large start capacitor that stores charge even after the unit is unplugged, and the motor assembly is heavy enough that dropping one off a ladder or from chest height can break the new part before you even wire it. The wiring between the board and the motor on a Linear APeX unit runs 120V, which deserves the same respect as anything else in your electrical panel. We recommend calling a trained professional for the swap. Call us at (562) 512-6788 and we’ll tell you exactly what the visit will cost before we dispatch.
FAQs
A Linear gate motor in Long Beach typically lasts 8 to 12 years, though coastal properties within a mile of the water often see 6 to 9 year lifespans because salt air accelerates corrosion on board terminals and capacitor leads. A well-adjusted gate that doesn’t bind or fight the wind will extend the motor’s life by several years. Call us at (562) 512-6788 if your operator is in that age range and showing symptoms, and we’ll give you a straight answer on whether it’s worth repairing or replacing.
Sometimes yes, usually no. If the failure is a capacitor, a limit switch, or a worn drive gear, those are repairable for far less than a full motor replacement, and we’ll always quote you the repair path first when it makes sense. If the motor windings are burned or the gearbox housing is cracked, replacement is the only option. Call (562) 512-6788 and we’ll tell you which situation you’re in before any money changes hands.
A motor-only swap on a Linear operator takes 90 minutes to 2 hours in most cases, and a full operator replacement takes 2.5 to 4 hours depending on whether we’re reusing the existing mounts or pouring new pads. We book the time we need, not the time we hope it takes, and you’ll know the schedule before we arrive.
We stock Linear-compatible motors, gearboxes, and capacitors for the LDO, LS, SL, and APeX series on our trucks, along with parts for LiftMaster, Mighty Mule, and Ghost Controls. If your Linear model requires a part we don’t have on board, we’ll quote you the lead time and a firm installed price before you agree to anything.
If your Linear gate motor is done, call Warden Gate Repair Long Beach at (562) 512-6788. You’ll get a live person, a written price, and a technician whose name and photo you’ll have before we roll up.
Written by Cole Rafferty, Owner & Lead Technician, Warden Gate Repair Long Beach at Warden Gate Repair Long Beach, serving Long Beach and nearby areas.