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LiftMaster operatorsFree 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.
Get your free estimateLinear Gate Repair in Miami: What to Know First
Linear gate repair in Miami typically runs $185 – $425 for most board, limit switch, and actuator fixes, and we can usually have a technician at your property within 24 hours. We’re Portcullis Gate Repair Miami, an independent Linear service provider, not a factory warranty station. You get a written price before we touch a single bolt, and every repair carries our 365-Day Done Right Promise in writing.
If you own a Linear swing gate or slide gate that’s stopped responding, beeping, or moving halfway, this page tells you what’s actually going wrong and what it costs to fix it. Call (850) 409-8032 and you’ll reach a live person, not a voicemail tree. Dean Prescott, our owner, has been chasing gate faults in South Florida long enough to tell you the likely culprit from a thirty-second description.
How Linear Products Fail – and How We Fix Them
Linear operators are workhorses, but Miami has a way of exposing their weak points faster than most places. Here’s what we actually see on service calls across the city:
- Linear LDO50 and M50 swing gate arms losing their limit stops. The limit switches inside these arms tell the gate where to stop opening and closing. Humidity and salt air from Biscayne Bay work their way past the gaskets, corrode the switch contacts, and the gate starts slamming hard against the post or reversing mid-cycle. We open the arm, replace the limit switches with sealed replacements, clean the gasket channel with dielectric grease, and reset the travel limits. The fix usually runs $165 – $240.
- Linear SL series slide gate operators cooking their run capacitors. Brickell and Coral Gables have a lot of SL slide operators on heavy iron gates. The run capacitor gives the motor its starting punch. In Miami heat, the capacitor degrades faster than the manufacturer’s rated lifespan, and the symptom is a gate that hums but won’t move, or trips the breaker every time you push the button. A new capacitor and a quick amp draw test on the motor keeps you from replacing an operator that still has years left in it.
- Linear MegaCode receivers dropping remotes after a storm. We get a wave of calls after every South Florida afternoon thunderstorm. The MegaCode receiver on the control board loses its memory or gets a voltage spike from lightning, and suddenly none of the clickers work. Surprisingly often the receiver is fine and the issue is a shorted photo eye wire at the gate post. We trace the wire before condemning the board, a distinction that saves Miami homeowners a $300 board replacement they didn’t need.
- Linear APeX and PRO series boards showing “SAG” or “DPS” fault codes. These models monitor motor current draw, and a false fault code usually means the motor is working harder than it should, not that the board is bad. We find worn gate rollers, a dragging wheel, or a misaligned track on most of these calls. The board is doing its job by complaining. We fix the mechanical binding and clear the code for the cost of a roller set, typically under $200, instead of a $450 board swap.
- Linear LRA and DRA linear arms with cracked clutch assemblies. The clutch is the mechanical fuse that lets the arm slip when something blocks the gate, rather than bending the arm or snapping the mounting post. Clay-grit sand and crushed-shell driveways in Pinecrest and Palmetto Bay wear down the clutch faces. The gate starts slipping partway through the stroke, usually worse in the late afternoon heat. We replace the clutch pack and adjust the slip torque to spec, which extends the arm’s life without a full arm replacement.
Styles & brands we work with





Our Linear Gate Repair Process
Here’s what actually happens when you call Portcullis Gate Repair Miami about a Linear operator that’s misbehaving:
- 1
You call and describe the symptom. The person who answers will ask what the gate is doing – humming, clicking, half-opening, dead. By the time the tech hangs up, the truck is already stocked for the likely series.
- 2
Diagnostics on site. The technician pulls the cover off the operator and checks the control board, limit assembly, transformer, and the mechanical linkage. We test before we quote, not after.
- 3
Written price. You get the repair cost in writing before work begins, parts and labor itemized. No surprise add-ons at the end.
- 4
The repair. We decide with you whether OEM Linear parts or a quality aftermarket equivalent makes better sense for the age and duty cycle of your operator. We don’t install parts we wouldn’t put on our own gate.
- 5
Cycle testing and load check. We run the gate through at least a dozen full open-close cycles and measure motor current draw to confirm the operator isn’t working harder than it should.
- 6
Cleanup and written guarantee. We leave the work area cleaner than we found it and hand you an invoice with the 365-Day Done Right Promise printed on it.
See the difference
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After
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AfterWhat Linear Gate Repair Costs in Miami
Here are the numbers we give people in Miami when they ask what they’re looking at. These are realistic, parts-and-labor ranges for common Linear failures:
| Repair | Typical Cost Range | Time on Site |
|---|---|---|
| Replace limit switch on LDO50 / M50 swing arm | $165 – $240 | 1 – 2 hours |
| Replace run capacitor on SL series slide operator | $145 – $210 | 45 min – 1 hour |
| Reprogram MegaCode receiver / repair photo eye wiring | $95 – $185 | 30 min – 1 hour |
| Replace clutch pack on LRA / DRA linear arm | $220 – $380 | 1.5 – 2.5 hours |
| Replace full control board (APeX / PRO series) | $325 – $520 | 1 – 2 hours |
| Replace complete swing arm operator | $750 – $1,450 | 2 – 3 hours |
What moves the price: gate weight and length, whether we need OEM Linear parts, how far the property is from our Miami shop, and whether the operator needs extra mechanical repair like roller or track work. Every estimate is free, and the price is on paper before work starts. Call (850) 409-8032 and we’ll give you a real number, not a vague range.
Why Miami Homeowners Call Portcullis Gate Repair Miami for Linear Work
Most of our Linear customers in Miami already have at least one story about a gate company that let them down. Their swing arm got stuck halfway open at 6 a.m. and the “24/7” company called them back two days later. Or the tech quoted $300 at the door and came back with a $700 invoice. That’s not how we work.
We’re an independently owned Kingswell location and we follow the Kingswell Way on every job, no exceptions. You get a written price before the work starts. A real arrival window. A clean site when we leave. And the written 365-Day Done Right Promise: if the repair fails inside a year, we come back and fix it at no charge. No argument, no fine print. Our technicians are background-checked, wear uniforms, and know Linear inside and out. They also service LiftMaster, Mighty Mule, Ghost Controls, and DoorKing, so if your system is mixed-brand, whoever shows up already understands the whole setup, not just one operator box.
FAQs
In almost every case, no. Using an independent Linear service provider for standard repairs doesn’t void your warranty, as long as the work doesn’t involve modifying the operator in a way that deviates from the manufacturer’s design. We use OEM Linear parts whenever the operator is still under warranty, precisely to keep that coverage intact. If your operator is older than the warranty period, we’ll talk with you about whether a quality aftermarket part makes more sense for the price.
We usually have a technician at your Miami property within 24 hours of your call, and often same-day if you call before noon. Linear operators that have failed in the open position – say, a swing gate stuck wide open on a corner lot in Shenandoah – jump to the front of the dispatch list because your property is exposed. Call (850) 409-8032 and the person on the other end will give you a real arrival window, not a four-hour guess.
If your Linear operator is under ten years old and the failure is a board, capacitor, limit switch, or clutch, repair usually makes financial sense. We pull the duty cycle history and motor amp draw to tell you honestly. If the operator is over fifteen years old, has been through several South Florida summers, and the motor itself is failing, we’ll give you a replacement quote and a repair quote side by side, and our recommendation. We don’t profit from steering you into a new operator you don’t need.
We keep common Linear parts on our trucks and in our Miami shop: limit switches for LDO and M series arms, run capacitors for SL operators, MegaCode receivers, clutch kits for LRA/DRA arms, and APeX/PRO control boards. Oddball series or discontinued models sometimes mean a two-to-four-day part order, and when that happens we’ll say so before you commit to anything. You’ll know the part availability and the timeline before you approve the repair.
It covers the entire repair we performed. If the same component fails or the same symptom returns within 365 days of the date on the invoice, we return and correct it at no charge. No service call fee, no parts charge, no labor. The promise is printed right on the repair invoice. If you need to call us back under warranty, a live person answers the phone, same as the first time.
Written by Dean Prescott, Owner, Portcullis Gate Repair Miami at Portcullis Gate Repair Miami, serving Miami and nearby areas.