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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 Installation in Miami: What to Know First
Linear gate installation in Miami typically runs $1,800 to $6,500 for a complete single swing or slide gate with operator, depending on gate size, material, and access conditions. As an independent Linear service provider, we install and configure Linear operators weekly across Miami, from Coral Gables to Kendall to Pinecrest, and most jobs are completed in one day once the gate and operator are on site. You get a written price before any work starts, and every installation carries our 365-Day Done Right Promise in writing.
If you own a Linear operator that needs a new gate, a new Linear board that needs programming, or a full driveway system built from scratch, call (850) 409-8032. A live person answers, day or night.
How Linear Products Fail – and How We Fix Them
Linear has made gate operators for decades, and we see the same failure patterns repeat across Miami’s heat, salt air, and daily storm cycles. Here’s what actually goes wrong on Linear units and what we do about it.
- ACT34 / ACT34B control boards burning out after power surges. These are the boards in Linear’s mid-range actuator line, and they don’t tolerate Miami’s summer lightning season well. The symptom is usually a dead keypad and a gate that only moves with the manual release. When we install a new Linear board, we add surge protection on the low-voltage side at the same time, which most original installs around Miami skip entirely.
- Limit switches drifting out of adjustment on LS series slide operators. The LS series uses mechanical limit switches that can shift over time, especially on gates that get slammed by wind or knocked by delivery trucks. The gate stops five inches short, or over-travels and grinds the rack. We set limits, torque the switch cams, and verify the full open and close cycle six times before we call it done.
- Salt air corroding the actuator’s internal gearbox on coastal properties. Linear swing actuators, like the LA400 and LA500 series, use a worm gear inside the arm housing. On waterfront lots in Coconut Grove and Key Biscayne, we open these up and find the factory grease gone and rust starting on the gear faces. We clean, re-grease with a marine-grade lubricant, and replace the seals if they’ve hardened.
- Photo eye misalignment after a storm or landscape work. Linear safety photo eyes are sensitive to alignment. After a heavy rain shifts a post or a gardener clips the conduit, the gate refuses to close and the board flashes an entrapment fault. It’s rarely the board. We re-align, re-mount on solid brackets, and shield the eyes from direct morning sun, which can blind the sensor on east-facing Miami driveways.
- Zinc-plated hardware failing on gate hinges and brackets. The operator is only as good as the gate it’s mounted to. Many Miami gates were hung with zinc-plated bolts that seize and snap inside two years. On Linear installations we use stainless hardware on every hinge, bracket, and operator mount, which costs a few dollars more and saves a service call later.
Styles & brands we work with





Our Linear Gate Installation Process
Every Linear job follows the same steps, whether we’re replacing a tired operator on an existing gate or building a new double swing from scratch. Here’s how it works.
- 1
Call and walk-through. You call, we listen. We ask about the gate’s size, the operator model if you know it, and what it’s doing or not doing. A live person takes the information and books a window that’s actually real.
- 2
On-site inspection and measurement. One of our background-checked, uniformed technicians arrives, measures the gate leaf, checks the existing concrete pads or post footings, examines the hinges, and tests the power supply at the operator location.
- 3
Written price, before we touch a bolt. The technician puts the full scope in writing on the spot. That includes the operator, any board or arm work, mounting hardware, wiring, safety edges if code requires them, and labor. The price does not change halfway through.
- 4
Parts decision: OEM Linear vs. quality aftermarket. For board replacements and safety components, we go OEM to keep warranty-safe. For things like conduit, connectors, and mounting brackets, we use stainless or marine-grade parts that outlast Linear’s included hardware in Miami’s salt and humidity.
- 5
Installation and testing. We mount, wire, program, and then we test. Force settings are tuned on every cycle. Photo eyes re-aligned. Limit switches set so the gate doesn’t slam into the end stop. We run the gate a full fifteen times, then watch it two more times while you use the remote.
- 6
Cleanup, walkthrough, and the written guarantee. We leave the job site cleaner than we found it, hand you the written Kingswell Guarantee on the invoice, and make sure you know how to use the manual release if you ever need it.
See the difference
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AfterWhat Linear Gate Installation Costs in Miami
Here are real ranges for the Linear work we do most often in Miami:
- Single swing gate with Linear LA400/LA500 actuator, new install: $1,800 – $3,200
- Double swing gate with two Linear actuators, new install: $3,000 – $5,500
- Slide gate with Linear LS series operator, new install: $2,200 – $4,200
- Linear operator replacement on existing gate (labor and parts): $800 – $1,500
- Control board replacement with surge protection: $300 – $600
The price moves based on gate weight, whether we’re anchoring into existing concrete or pouring new pads, the distance from the house panel to the operator, and whether safety loops or edge sensors are required. Every quote is written, every quote is free, and it’s yours before you decide. Call (850) 409-8032 and we’ll get you exact numbers for your gate.
Why Miami Homeowners Call Portcullis Gate Repair Miami for Linear Work
The thing that brings most of our Miami customers to us is that they’ve already had a bad experience with another gate company. Somebody showed up late, or put a cheap universal board in a Linear operator and disappeared when it failed a month later. We don’t work that way. Since 2008, every job we do carries the Kingswell Guarantee: a written price before work starts, a real arrival window, a clean job site, and a written guarantee on the repair. If it fails inside 365 days, the return visit is free.
We only work on gates, and we train on nine operator brands: Linear, LiftMaster, Mighty Mule, Ghost Controls, DoorKing, plus FAAC, BFT, Viking, and Elite. So when a Miami customer has a Linear on the driveway and a Ghost Controls on the pedestrian gate, one truck can handle both. That matters when you don’t want to call three companies and compare three different excuses.
FAQs
No. Gate manufacturers warrant the gate structure separately from the operator, as long as the operator is installed with the manufacturer’s required safety devices. We install to Linear’s published specs and keep the documentation, so the operator side stays warranty-compliant too.
In most cases, yes. We replace the operator, reuse the gate if the hinges are sound, and often we can reuse the existing conduit if it’s not cracked from sun exposure. We’ll tell you during the inspection if the gate itself is too heavy or too racked to support a new operator efficiently.
The rule we use in Miami: if the repair cost on a Linear operator over ten years old is more than half of a new unit installed, replace it. Below that, a board or limit switch replacement usually buys you several more years. We give you the numbers for both options before you choose.
For emergencies like a gate stuck shut, we prioritize same-day service in Miami when the call comes in before early afternoon. If the gate is stuck open and the security risk is urgent, call (850) 409-8032 and we’ll give you a straight answer on arrival time, not a window that never shows.
Yes. We supply Linear operators and components as part of the installation. We’re an independent Linear service provider, not a manufacturer-authorized dealer, which means we choose parts based on what actually holds up in Miami’s climate rather than what a distributor is pushing that quarter.
Written by Dean Prescott, Owner, Portcullis Gate Repair Miami at Portcullis Gate Repair Miami, serving Miami and nearby areas.