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Get your free estimateMighty Mule Gate Repair in Arlington, TX | Bastion Gate Repair
We’re an independent Mighty Mule repair shop serving Arlington and the surrounding Dallas-Fort Worth suburbs, including Mighty Mule service in Dalworthington Gardens, and we fix the whole system, not just the operator. The thing that makes our Mighty Mule work different here is simple: we know Arlington’s Blackland Prairie clay moves, and we diagnose the post footing and gate geometry before we ever blame the board or the motor. Call (866) 321-6117 for Mighty Mule repair, motor replacement, hinge work, or a full operator diagnosis across the 76010, 76011, 76012, and 76013 ZIP codes.
Why Arlington Residents Choose Us for Mighty Mule Service
Mighty Mule operators are popular in Arlington for good reason. The FM350, MM360, and FM700 series swing and slide openers are straightforward, affordable, and easy for a homeowner or handyman to install, which means a lot of Arlington’s suburban tract homes built from the 1970s through the 2000s have them on driveway and backyard gates. The problem is that most of those installations were done on whatever post footing existed at the time, and Arlington’s clay soil doesn’t hold still. That’s why our techs spend as much time with a post-hole digger and a level as they do with a multimeter.
Brent Calloway, who runs our gate repair crew, has been working on automated gate systems in and around the southern Dallas County and Arlington corridor for nearly two decades. He came up through the industrial technology program at Eastfield College in Mesquite before narrowing in on access control and gate operators. When a Mighty Mule acts up in Arlington, Brent’s first question is rarely “what’s the board reading?” It’s usually “when did the post move?” That’s the difference between a parts-swapper and a diagnostician, and it’s why our repairs tend to stay fixed.
We’re not an authorized Mighty Mule dealer. That matters more than you’d think. An authorized shop may be incentivized to push warranty replacements or new units. We’re incentivized to find the actual failure, because our reputation in Arlington depends on repairs that don’t come back in six months. For more on our brand coverage, see our full Mighty Mule sales & service page.
Styles & brands we work with





Common Mighty Mule Gate Repair Problems We Solve in Arlington
- Operator runs fine on voltage but drops under load. Mighty Mule solar and battery-backup units take a beating in Arlington summers. A battery that tests 12.8 volts on the bench can collapse the moment the arm needs real torque, especially after two or three years of North Texas heat soaking through a metal operator housing. We load-test batteries, not just voltage-test them, and we replace with quality aftermarket cells when the OEM price doesn’t justify itself.
- Swing gate reverses mid-cycle or stops halfway. This is the classic Arlington clay symptom. The post heaves during the summer drought-to-rain swing, the gate leaf drops or racks, and the Mighty Mule arm binds against geometry it was never designed for. The operator trips its obstruction sensitivity and reverses. We re-set the post, re-plumb the hinges, and only then touch the limit switches.
- Limit-switch and arm-binding faults that mimic a dead motor. On FM350 and MM360 swing operators, a gate arm that’s fighting a leaned post will eventually wear the limit switch assembly or chew up the arm itself. Homeowners call thinking the motor died. Usually the motor is fine; the arm was sacrificed to a moving post. We replace the worn mechanical parts and fix the footing that caused the wear.
- Bent or warped gate leaves after spring hailstorms. Arlington sits in DFW’s Hail Alley, and the same straight-line winds that dent roofs bend steel and aluminum driveway gates. A warped gate leaf binds the Mighty Mule arm and trips the operator every cycle. We straighten leaves where the metal is sound, reinforce the frame where it isn’t, and re-balance the gate so the operator isn’t fighting a losing battle.
- Corroded terminals and water intrusion after storm cycles. April and May storm fronts push water into operator housings, keypad enclosures, and wiring junctions across Arlington. Green corrosion on a Mighty Mule control board terminal can cause intermittent faults that look like a haunted operator. We clean, reseal, and replace connectors, and we’ll tell you honestly when the board itself has to go.
Mighty Mule Service in Arlington: What Local Conditions Mean for Your Equipment
Here’s the thing about Arlington and Mighty Mule service in Grand Prairie that a generic “Mighty Mule repair” page won’t tell you. The city’s suburban housing stock, mostly built from the 1970s through the 2000s, put a lot of automatic gate operators on posts that were never meant to hold a swinging steel gate in Blackland Prairie clay. The clay expands when it’s wet and shrinks when it’s dry, and the shrink happens fast in a North Texas July. A shallow footing, 18 or 24 inches deep, moves enough in a single wet-dry cycle to lean a gate post by an inch or more. That inch at the post translates to two or three inches of sag at the gate’s free edge, and a Mighty Mule arm doesn’t have two or three inches of forgiveness. In south Arlington neighborhoods off Sublett Road and along the older tract streets feeding into the 76010 and 76012 ZIP codes, we re-set posts in deeper concrete with wider footings than the original installs, then re-plumb the hinges before we recalibrate the operator. If your Mighty Mule “failed” after a drought summer, the odds are better than even that your post failed first and your operator was just the messenger.
Mighty Mule Models & Products We Service in Arlington
We work on the full Mighty Mule residential lineup that Arlington homeowners actually have. That includes the FM350 and FM500 single and dual swing gate openers, the MM360 and MM560 automatic swing series, the FM700 slide gate operator, and the brand’s entry keypads and wireless intercom accessories. We carry OEM Mighty Mule control boards, arms, and limit switches locally for the most common Arlington failures, and we stock quality aftermarket batteries, drive gears, and hardware where the OEM piece is overpriced for the same job. No cheap boards that die in their first Texas summer. If your gate is in one of the neighborhoods we cover, check our Arlington service area page for details.
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AfterMighty Mule Service Pricing in Arlington
A Mighty Mule service call in Arlington typically runs $85 to $140, and that diagnostic fee is waived when you approve the repair on the spot. Control board replacement usually lands between $180 and $320 with the part. Battery replacement runs $60 to $120. A post re-set in Arlington’s clay, including deeper concrete and hinge re-plumbing, typically costs $250 to $450 depending on how much of the old footing has to come out. Limit switch and arm repairs fall in the $120 to $260 range. The price you’re quoted is the price you approve before any work starts, and the estimate is free. Call (866) 321-6117 and give us the model number off the operator; we’ll tell you what to expect before we roll a truck.
Serving Arlington, TX — Our Local Coverage Area
We’re based in the Arlington area and know this community well, from Mighty Mule in Pantego to our local neighborhoods. 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
Probably not. In Arlington, a Mighty Mule that reverses mid-cycle is most often fighting a gate that’s out of geometry, usually because a post heaved in the Blackland Prairie clay and bound the arm. We check the post, the hinges, and the gate leaf before we condemn the operator. Call (866) 321-6117 and describe the symptom; we’ll tell you over the phone where to look first.
North Texas heat ages sealed lead-acid and AGM batteries faster than most climates. A Mighty Mule battery in an Arlington garage or an outdoor metal housing can lose usable capacity in two years, especially if the operator runs several times a day on a solar or low-voltage supply. We test batteries under load, not just on voltage, and we install higher-rated aftermarket cells where the OEM battery is the same chemistry at twice the price.
Yes. Skipping on the rack is almost always a worn drive gear, a misaligned rack section, or both. On FM700 slide units, the gear teeth wear over time and the gate loses positive engagement under load. We replace the gear, realign the rack, and check the wheels and track for binding before we call it done.
Storm-driven water intrusion is the usual culprit. Arlington spring fronts drive rain horizontally into keypad enclosures, and corroded terminals or a soaked board kill the keypad’s response. We open the enclosure, clean or replace the board and terminals, and reseal the housing so the next storm doesn’t do the same damage. Sometimes the keypad is fine and the problem is a corroded splice at the operator end.
We work on all of them. In fact, a good share of our Mighty Mule repairs in Arlington and Hurst Mighty Mule service calls are on DIY installs from YouTube tutorials. The operator is usually fine; the post, the hinge, or the wire run wasn’t. We diagnose the system as a whole and tell you exactly what needs to happen, whether you installed it yourself or had a contractor do it. Call (866) 321-6117 for a straight answer and a free estimate.
Service Areas Near Arlington
We run Mighty Mule repair calls throughout the southern Dallas County and Tarrant County corridor, including DeSoto, Duncanville, Cedar Hill, Ovilla, and Glenn Heights. For neighbors to the north, we also provide Mighty Mule service in University Park. Further southeast of the city, see our Mighty Mule service in Seagoville coverage.
Book Your Mighty Mule Service in Arlington Today
If your Mighty Mule operator is acting up, acting dead, or half-working, call us at (866) 321-6117. We’ll diagnose the system, not just the symptom, and we’ll tell you plainly whether it’s the board, the battery, the arm, or a leaning post in Arlington clay. Estimates are free.
Written by Brent Calloway, Owner at Bastion Gate Repair, serving Arlington and the surrounding DFW suburbs. If your gate isn’t working right, there’s a reason – and finding it is the job, not guessing at it.