Free 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.
Mighty Mule Gate Parts & Welding in Johns Creek: What to Know First
We provide independent Mighty Mule gate parts and welding service in Johns Creek, with most hinge replacements, rail repairs, and post rewelds completed in one visit. Our written price is delivered before any work starts, and we carry common Mighty Mule swing-arm brackets, roller hardware, and latch assemblies for the FM200, FM350, and MM560 series on our trucks. This page is for Johns Creek homeowners who already know their Mighty Mule operator model and need the gate itself fixed, not replaced with another brand. Call (678) 394-1765 for a free estimate.
How Mighty Mule Products Fail - and How We Fix Them
- FM200 / FM350 swing-arm bracket fatigue. The cast aluminum bracket that mates the Mighty Mule arm to the gate frame develops stress cracks after 4-6 years of opening against the Georgia humidity-swollen wood common in Johns Creek’s older subdivisions off Medlock Bridge Road. We weld a steel reinforcement plate to the bracket or source the updated FM348 bracket casting, then photograph the torque setting on the mounting bolts before we leave.
- MM560 sliding-gate roller seizure. The sealed bearing in the MM560’s bottom roller pack traps moisture from Johns Creek’s heavy spring rains and clay-soil splash; the roller locks, and the gate motor strains until the rack gear strips. We press out the seized bearing, weld repair any cracked roller housing, and install a greasable replacement with a zerk fitting so the homeowner can maintain it.
- FM500 post hinge elongation. The pin bore in the FM500’s lower hinge plate wallows out from the gate’s weight, especially on the longer iron swing gates popular in the Nesbit Ferry Road corridor. We pull the gate, bore the hinge plate clean, weld in a hardened bushing, and rehang with a grade-8 pin.
- MM-LPS13 latch misalignment from frame twist. The linear actuator latch on this series is precise to within 3/16 inch; when the gate frame twists from a rotted post or impact, the latch misses by inches. We diagnose the frame deflection, weld repair or replace the bent stile, and reset the latch with shims rather than selling a new operator.
- FM200 control-arm shear bolt failure. The shear bolt is designed to break if the gate hits an obstruction, but on the FM200 it also fatigues from normal vibration if the hinge is loose. We replace the bolt, weld repair any elongated bolt holes in the arm clevis, and document the hinge torque so the next technician knows what was set.
Our Mighty Mule Gate Parts & Welding Process

- 1
Call intake. A live person answers, records the Mighty Mule model number from the operator cover, and schedules a free estimate. We ask for a photo of the damage if the homeowner can send one.
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On-site diagnosis. The technician names the failed part, names the cause, and names the repair. We check for OEM part availability against quality aftermarket equivalents, noting that Mighty Mule’s own parts network often carries 7-10 day lead times on cast brackets.
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Written price delivery. Under Haven Standard Clause 1, the flat price is written and handed over before any tool is picked up. No verbal estimates, no “we’ll see once we start.”
- 4
Repair and welding. Parts are fitted, welds are made with 7018 rod on structural steel or MIG on thin cast as appropriate, and the gate is cycled 10+ times to confirm operation.
- 5
Documentation and close. Under Clause 4, the homeowner receives a photo log of the repair, the part number installed, and the torque or limit-switch settings recorded. The 365-Day Done Right Promise covers all work.
Before
AfterWhat Mighty Mule Gate Parts & Welding Costs in Johns Creek
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Hinge pin / bushing replacement (single) | $180 - $290 | Post rot requiring excavation, gate weight over 400 lbs |
| Swing-arm bracket repair or replacement | $220 - $380 | OEM vs. reinforced aftermarket casting, weld repair vs. full replacement |
| Sliding gate roller replacement (per roller) | $140 - $240 | Bearing type (sealed vs. greasable), access to roller track |
| Rail / frame weld repair | $260 - $520 | Length of crack, need for temporary bracing, paint touch-up |
| Post replacement with rehang | $680 - $1,400 | Concrete footing depth, gate weight, permit requirements |
These are real ranges for Johns Creek, not teaser rates. The exact price depends on what we find when we look at your gate, and it is quoted and agreed before any work starts. Estimates are free. Call (678) 394-1765.
Why Johns Creek Homeowners Call Vance Gate Repair Johns Creek for Mighty Mule Work

We are an independent Mighty Mule service provider, not a dealer steering every repair toward a full replacement. Our technicians carry parts for nine automation brands, including LiftMaster, Ghost Controls, and DoorKing, so if your Mighty Mule operator has reached end of life we can quote a compatible alternative without a second trip. The 365-Day Done Right Promise means if a weld cracks or a roller seizes inside twelve months, we make it right at no charge. Every visit leaves a documented photo record, and the price is always in writing first. Name what you found. Name what it costs. Name what you left behind.
FAQs
No. The operator warranty covers the motor and control board; gate parts and welding are separate mechanical components. We use parts and practices that do not interfere with operator function, and we document what was done so any future Mighty Mule warranty claim on the operator itself remains clean.
OEM Mighty Mule brackets and castings typically ship in 7-10 business days. We stock quality aftermarket equivalents for common failures and will quote both options so you can choose speed versus exact OEM match.
Repair the gate if the frame is sound and the operator still cycles. We replace the operator only when the control board or motor is failed and parts are obsolete. We will show you the specific failure and the price for each path so you can decide.
Most hinge repairs, bracket welds, and rail cracks are completed in the initial visit because we carry the welding equipment and common hardware. Post replacements and full rail rebuilds require scheduling due to concrete cure times. The written quote will state the timeline before you approve.
Under Haven Standard Clause 4, you receive a photo log of the repair area, the part number installed, and a written condition note with torque settings or limit-switch readings. This record stays with you and is filed in our job history for future reference.
Ready for a written estimate? Call (678) 394-1765 - a live person answers 24 hours a day, and your free estimate includes a documented inspection of your Mighty Mule gate system.
Written by Adrian Vance, Owner, Vance Gate Repair Johns Creek at Vance Gate Repair Johns Creek, serving Johns Creek and nearby areas.





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