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Get your free estimateMighty Mule Gate Repair in Fontana, CA | Manor Gate Repair
We provide independent Mighty Mule gate repair across Fontana, from battery replacement on an FM500 to a full swing-arm rebuild on an aging South Fontana wrought-iron gate. For related service, see Fontana Gate Repair. The one thing that makes our Mighty Mule work different here is that we diagnose the gate and the operator together, because in Fontana’s heat and dust, the failure is rarely just one or the other. Call (844) 703-6053 for a Mighty Mule service call, and we’ll send a technician who actually knows the brand and the neighborhood.
Why Fontana Residents Choose Us for Mighty Mule Service
Nelson Pryce, our owner and lead technician, grew up off Boulder Avenue in Highland and has spent years working on Mighty Mule operators across Fontana’s mix of 1950s tract homes and newer freeway-corridor yards. He studied industrial mechanics at San Bernardino Valley College, and that background shows when a Mighty Mule control board starts behaving erratically after three summers of direct sun. We don’t guess. We test the board, the battery, the arm, and the gate itself before recommending anything.
Manor Gate Repair works on nine gate automation brands, including Mighty Mule, LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, and Elite. That matters when a Mighty Mule owner has a gate that someone else already misdiagnosed. We come in with brand-level knowledge and fix what’s actually failing. We’re an independent shop, not a Mighty Mule dealer, so you get the right fix rather than a replacement pitch. Our Mighty Mule sales & service work covers swing openers, slide operators, solar kits, and battery backups.
Styles & brands we work with





Common Mighty Mule Gate Repair Problems We Solve in Fontana
These are the calls we run most often, and each one shows up in Fontana for a reason:
- Dead or erratic control boards after heat exposure. A Mighty Mule FM350 or FM600 mounted in a black housing against a south-facing Fontana wall bakes every summer. Batteries swell, boards cook, and the unit either goes silent or starts phantom-reversing on its own. We test the board and battery separately so you don’t pay for a new operator when a $100 battery fixes it.
- Worn swing-arm bushings and brackets from wind-driven dust. Santa Ana winds push grit into the pivot points on FM and MM swing arms. The arm starts binding, the operator strains, and the manual release gets stripped when someone forces it. We replace the arm, bracket, and bushings, then realign the gate so the opener isn’t fighting the load.
- Grit-jammed limit and sensor switches on slide operators. Mighty Mule R5000-series slide gates on Fontana warehouse yards near the I-10 and 210 corridors eat dust constantly. Safety edges and limit switches clog, the gate stops mid-travel, or the reverse trips for no reason the owner can see. We clean, test, and replace the switches so the gate runs its full track without false stops.
- Corroded terminals and rusted mounting hardware. In South Fontana, where original gates date back to the 1950s and 60s, the mounting bolts on older Mighty Mule installs are often rust-welded in place. Power to the operator gets flaky because the connectors have corroded through years of heat, dust, and winter rain. We cut out the bad hardware, re-terminate the wiring, and mount the operator square.
- Battery and solar backup failures. Mighty Mule solar kits and battery backups get overlooked until the power goes out and the gate won’t move. In Fontana’s hot summers, lead-acid batteries lose capacity fast. We test the charging circuit and the panel output, then replace the battery and verify the unit holds a charge before we leave.
Mighty Mule Service in Fontana: What Local Conditions Mean for Your Equipment
South Fontana’s 1950s and 60s chain-link and wrought-iron gates often have hinges rusted solid from decades of Inland Empire heat and dust, so Mighty Mule swing-opener calls here routinely turn into cut-and-re-weld jobs on the gate itself. That’s an all-day repair you rarely hit in the newer northern subdivisions with factory-fresh gates. On a call in South Fontana, a homeowner’s Mighty Mule FM-series swing opener had quit after the old wrought-iron gate sagged and the original hinges had rusted solid, binding the operator arm. We cut the seized hinges and re-welded fresh ones, realigned the gate leaf, then replaced the stressed opener arm and reset the limits so the Mighty Mule swung clean and shut reliably again. The gate itself, not just the motor, was the real fix. That’s the kind of job these older Fontana yards demand, and it’s why we always inspect the gate structure before blaming the operator.
Mighty Mule Models & Products We Service in Fontana
We service the full range of Mighty Mule equipment installed across Fontana homes and yards:
- FM-series swing openers: FM350, FM500, FM600, including older units with the original control boards.
- MM-series swing openers: MM360 and MM560, plus the mounting brackets and release hardware.
- R5000-series slide operators: For driveway and industrial slide gates, including the chain and track hardware.
- Solar and battery-backup kits: Panels, charge controllers, batteries, and wiring for off-grid and backup applications.
We use OEM Mighty Mule boards, batteries, and arms where compatibility and safety depend on it. For arms, brackets, and remotes, we’ll recommend quality aftermarket parts when they hold up as well for less money. If the board or battery is the only problem, we repair it. We only recommend replacing the whole operator when the gearbox, motor, or housing is genuinely beyond service.
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AfterMighty Mule Service Pricing in Fontana
Service pricing depends on what’s failed and how your gate is configured, but here’s what our Electric Gate Repair in Fontana typically costs for Mighty Mule owners:
- Diagnostic visit: $79 – $149, credited toward approved repairs
- Remote control replacement: $35 – $75 per remote, programmed on site
- Control board replacement: $180 – $450 installed, depending on model and board availability
- Swing arm and bracket replacement: $150 – $380 installed
- Battery replacement (solar or backup): $90 – $220 installed
- Full operator replacement (FM/MM swing): $450 – $900 installed, equipment included
- Slide gate track or roller repair: $150 – $500 depending on track length and roller condition
Every price is quoted and agreed before any work starts. Your estimate is free, and there’s no obligation to proceed. Call (844) 703-6053 to book a Mighty Mule service visit in Fontana, and we’ll give you a written number before a single tool comes off the truck.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana area and know this community well, including Mighty Mule in Glen Avon. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Mighty Mule Gate Repair in Fontana
The most common cause in Fontana, including Mighty Mule in Pedley, is grit buildup in the track channels and on the rollers, especially during Santa Ana wind season when dust blows continuously. Older chain-link and wrought-iron gates in South Fontana also develop hinge sag that loads the opener arm unevenly, making the opener bind or stall on what looks like a track problem. We clean the track, check the rollers, and realign the gate so the operator isn’t fighting the structure. Call (844) 703-6053 for a diagnosis.
Almost never. In Fontana’s summer heat, we mostly see failed batteries or baked control boards inside the sun-exposed housing. The motor itself is usually fine. We test the battery voltage, check the board for damage, and replace only what’s failed. A full operator replacement is rarely necessary on the first visit. Call (844) 703-6053 for a free estimate on a Mighty Mule diagnosis in Fontana.
We can fix most rusted-solid hinges. On South Fontana gates from the 1950s and 60s, we regularly cut out seized hinge barrels and weld in fresh ones, then realign the gate leaf so the Mighty Mule opener runs clean. Replacing the whole gate is only needed when the gate frame itself is rotted or structurally compromised. Call (844) 703-6053 and we’ll tell you honestly whether the gate is repairable.
Yes. We service Mighty Mule solar panels, charge controllers, and battery-backup batteries across Fontana. We test the panel output, check the charging circuit, and replace batteries that have died from heat exposure. Summer heat in Fontana shortens lead-acid battery life noticeably, so we verify the whole charging path rather than just swapping the battery. Call (844) 703-6053 for an estimate.
No, we’re an independent gate repair company, not a Mighty Mule authorized dealer. That works in your favor: we diagnose honestly and only replace what needs replacing, with no brand quota to hit. We know Mighty Mule boards, arms, batteries, and limits as well as anyone, and we stand behind every repair. Call (844) 703-6053 to talk through your Mighty Mule issue in Fontana.
Service Areas Near Fontana
We run Mighty Mule service calls across Fontana and the surrounding Inland Empire communities, including Mighty Mule service in Bloomington, Mighty Mule service in Rialto, Sunnyslope, Glen Avon, and Muscoy. If you’re within a short drive of our Fontana service area and have a Mighty Mule acting up, we’ll get to you.
Book Your Mighty Mule Service in Fontana Today
A gate that hesitates is a gate that’s telling you something. The job is to listen before you wrench. When your Mighty Mule starts acting up, call (844) 703-6053 and we’ll set up a service visit with a technician who knows both the brand and the conditions that wear it down in Fontana. Free estimates, same-day availability for many repairs, and a written price before any work begins.
Written by Nelson Pryce, Owner and Lead Gate Technician at Manor Gate Repair, serving Fontana and the surrounding Inland Empire.