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Mighty Mule Gate Repair in Arlington, TX | Gatewood Fence & Gate
We provide independent Mighty Mule Gate Repair in Arlington, from the older subdivisions around Parks at Arlington to the newer gated sections of Viridian. If your opener quit moving or the gate binds halfway, we fix it where it sits. One thing makes our Mighty Mule work different here: we know Arlington’s black clay and 105°F summers, and we plan every repair around them. Call Hal at (903) 829-4499 and tell him what the gate is doing.

Why Arlington Residents Choose Us for Mighty Mule Service
Hal Gatewood has been fixing gates in this part of Texas since 2001, and Mighty Mule openers have been a regular part of the work the whole time. He learned the mechanical and welding side of the trade at Tarrant County College’s vocational program before opening Gatewood Fence & Gate, and he still gets annoyed when he finds a board swapped out with no thought to the post heaving underneath it. We service Mighty Mule FM500, FM502, MM371W, and MM571W units all over Arlington, and we stock factory control boards and actuators so most repairs don’t wait on a parts order. We’re an independent Mighty Mule service provider, which means we answer to you and our own name, not a manufacturer’s script.
For the full scope of our Mighty Mule sales & service, we handle everything from hinge welds to full operator replacement. In Arlington, we see one pattern over and over: a gate that worked fine for six years suddenly won’t hold its limits. The board gets blamed. Half the time the real problem is the post behind it.
Common Mighty Mule Gate Repair Problems We Solve in Arlington
- Control board failure from extreme heat. FM-series boards run hot on their own. Add a 105°F Arlington afternoon inside a steel control box, and a four-to-seven-year-old board drops its travel limits. The gate starts stopping six inches short, then three feet short, then not at all.
- Stripped actuator gears on slide gates. The MM371W uses plastic drive gears. When Arlington’s black clay heaves a slide gate out of track alignment, the actuator pushes against a gate that doesn’t want to move. Those gears strip fast. Forcing the gate open by hand makes it worse.
- FM502 sensor misalignment on cedar-fenced properties. Arlington’s cedar-board privacy fences with iron gate inserts warp and shrink through the seasons. The gate posts move with them, twisting the photo eyes just enough to throw a sensor fault that shuts the system down.
- Keypads and receivers bricked after hard freezes. Winter Storm Uri taught Arlington a lesson most of us already knew: gate electronics don’t like sudden single-digit nights. Uninsulated Mighty Mule keypads and receiver modules crack and fail. Since 2021 we’ve kept cold-weather replacement parts on the truck year round.
- Hinge welds fractured on ornamental iron gates. Twenty-to-forty-year-old iron gates in Arlington’s HOA communities carry a lot of weight on welds that were never gusseted. A single wet spring in the black clay torques the gate enough to crack those welds clean through.
Mighty Mule Service in Arlington: What Local Conditions Mean for Your Equipment
Arlington’s Kleberg-Rosedale area sits on Houston Black clay that behaves like a sponge someone keeps stepping on. It swells. It shrinks. It does both every year. A Mighty Mule FM500 swing gate on that soil will drift three to five degrees out of plumb after one wet spring, and we re-plumb posts on that side of town twice as often as we do on north Arlington’s sandier lots. If your gate was straight last fall and dragging by April, the opener board probably isn’t your problem. The post is. We realign the post and hinge geometry first, then recalibrate the opener’s travel and force settings to match the gate as it actually sits. Skip the post work and you’ll replace the board again next year. Those neighborhoods include the streets around Kleberg Road and Rosedale Lane, where the soil pattern is consistent enough to predict.
Mighty Mule Models & Products We Service in Arlington
We work on Mighty Mule FM500 and FM502 swing gate systems, plus the MM371W and MM571W linear actuators used on slide gates. For control boards and actuators, we insist on factory Mighty Mule parts. Aftermarket boards don’t carry the pressure-sensitivity calibration that Arlington’s binding gates need, and we’ve had to redo too many of them. Hinges, brackets, and frames we weld and fabricate right in your driveway. The only time we recommend replacing the whole opener is when the board and gearbox fail together and the numbers don’t make sense to repair. Most Mighty Mule jobs in Arlington are one part, one weld, and a recalibration.
Mighty Mule Service Pricing in Arlington
Mighty Mule repair in Arlington typically lands between $160 and $380 depending on what failed. A control board replacement with factory parts and recalibration usually runs in that range. Post realignment after black-clay heave adds a bit depending on how far the post moved. The final price is quoted and agreed before we touch anything, and your estimate is free. We don’t charge a trip fee inside the county, and every repair over $200 carries $40 off right now. Call (903) 829-4499 for numbers on your specific opener, and we’ll tell you what the fix should cost before we schedule anything.
Serving Arlington, TX - Our Local Coverage Area
We’re based in the Arlington area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs - Mighty Mule Gate Repair in Arlington
Because the control board overheats and drops its close-limit setting, usually after four or more Arlington summers. The gate then stops wherever the board last remembered, often against a fence post. We replace the board with a factory Mighty Mule unit and set the actuator’s force profile lower so the gate stops before it thermally binds again. Call (903) 829-4499 and we’ll test the board’s limit memory in your driveway.
Yes. The post moved, and the gate followed it. We re-plumb the post or replace it, realign the track and rollers, and only then recalibrate the opener. If the actuator gears stripped from months of pushing against a bound gate, we’ll tell you and replace those with factory parts. The good news is the opener itself often survives. The post is the fix.
Usually, but it depends on the keypad’s age and positioning. FM502 units trigger through a receiver module, and if that module sat uninsulated during a freeze like Uri, it may have cracked and lost its programming. We replace the receiver or keypad as needed, and we match the new unit to your existing wiring. Arlington’s freezes are rare enough that nobody plans for them. We do.
Sometimes. If the gear stripped because the gate bound on heaving soil, a new gear alone will strip again. We fix the alignment first, then replace the gear if the rest of the actuator is sound. If the gearbox is worn through, a full actuator replacement makes more financial sense. Either way, we’ll show you the worn part before we order anything. Call (903) 829-4499 for an honest read on your unit.
Yes. Most FM500 and FM502 systems accept a wired or wireless keypad receiver, and we install and program those as part of our Gate Installation in Arlington without pulling out a working opener. If your board pre-dates the keypad compatibility, we’ll tell you exactly what needs to change and what it costs. It’s a simpler job than most people expect.
Service Areas Near Arlington
Our Mighty Mule service covers Arlington and the surrounding communities. If you’re just west of us, see Mighty Mule service in Grand Prairie. Just north, we have Mighty Mule service in Irving. We also run calls to Duncanville, Kennedale, Euless, and the HOA neighborhoods along Arlington’s southern edge. Our full Arlington service area covers every zip code in the city.
Book Your Mighty Mule Service in Arlington Today
Tell us what the gate is doing, and we’ll tell you what it needs. No runaround. Call (903) 829-4499 and a live person picks up, day or night. The estimate is free, the price is set before work starts, and the 90-Day Done Right Promise comes in writing on the invoice.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Arlington since 2001.



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