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.
FAAC Gate Motor Replacement: The Missouri City Owner’s Guide
FAAC gate motor replacement in Missouri City typically runs $750 to $1,450 installed, depending on the model line and whether your existing mounting bracket survives the swap. We stock FAAC-compatible motors and hydraulic pumps on the truck, so most replacements happen same-day once we confirm the model number on your current unit. The way owners usually find us: the gate starts moving slower than it did last month, then trips the breaker, then refuses to move at all, usually right before a school run or a flight out of Hobby.
We’re an independent service provider, not affiliated with FAAC, which matters when you’re weighing parts options. We don’t push you toward a particular brand. We match what’s on your property and tell you the truth about whether the motor is worth replacing versus repairing.
Which FAAC Models This Applies To
FAAC makes two main families you’ll find on Missouri City driveways: the 400 Series (swing gates) and the 700/750 Series (sliding gates). The 400 Series uses a hydraulic pump and piston setup, which behaves differently from the screw-driven or chain-driven motors most homeowners recognize. The 750 uses a gearbox that’s easier to diagnose when it starts grinding.
Before we quote anything, we need the model plate. It’s usually riveted to the side of the operator housing or printed on a sticker inside the cover. You’re looking for a designation like C720, C721, S450, 412, or 415. That number, not “FAAC gate motor,” is what tells us which replacement fits without modifying the mounting plate.
On the OEM-versus-aftermarket question: for FAAC specifically, we recommend OEM or a known equivalent like the FAAC-compatible units from US Automatic or Nice, depending on the series. The gotcha is the mounting bolt pattern. FAAC changed the 400 Series base plate spacing between older and newer revisions, and a motor that bolts up on paper won’t always line up on a 2009-era installation without a new base plate. That’s the kind of thing we check before we order a part, not after.
Texas heat shortens capacitor life. We see 400 Series units in Missouri City losing their run capacitors around the five-to-seven-year mark, which presents as “the motor hums but won’t start.” That’s a $120 to $180 repair, not a full replacement, and it’s worth ruling out before you commit to a new motor.
Signs Your FAAC Gate Motor Replacement Is Failing

- Gate moves noticeably slower than it did last season. On a FAAC 400 Series, that’s usually low hydraulic fluid or a failing pump, not the motor itself. On a 750, it’s often a tired capacitor or worn gear teeth. We diagnose before we replace so you don’t buy a motor you didn’t need.
- The motor hums but nothing moves. That’s typically a failed start capacitor on FAAC units, especially in the Houston humidity. If the capacitor tests good, the motor windings are the next suspect.
- Breaker trips when the gate opens or closes. A failing motor pulls more amperage than the circuit can supply. This is the warning sign people ignore, and it usually means the motor is closer to dead than any of us would like.
- Grinding or knocking from the operator housing. On sliding-gate FAACs, that’s gear teeth wearing down. The noise won’t fix itself, and waiting turns a motor replacement into a gearbox and motor replacement.
- Gate stops mid-travel for no obvious reason. On 400 Series hydraulics, this can be a motor overheating and tripping its internal thermal protection. On a hot Missouri City afternoon, we see this more often than any other time of year.
Before
AfterReplacement Cost & What’s Included
| Replacement Type | Typical Installed Price (Missouri City) |
|---|---|
| Run capacitor replacement | $120 - $180 |
| FAAC 400 Series swing-gate motor (single) | $750 - $950 |
| FAAC 400 Series swing-gate motor (dual / pair) | $1,200 - $1,450 |
| FAAC 750 sliding-gate motor replacement | $850 - $1,150 |
| Gearbox replacement (750 Series, motor still functional) | $380 - $550 |
Those prices include the part, labor, mounting hardware if the old hardware is salvageable, limit-switch setup, and a full function test. What changes the number: whether we’re doing one motor or a pair on a dual swing gate, whether the mounting plate needs replacement, and whether the control board survived the motor failure. On most FAAC jobs the board is fine, but when it isn’t, that’s an additional $280 to $420, and we’ll show you the test readings before we recommend it.
The price we quote is the price you pay. Written, line by line, before we touch a tool. That’s Haven Standard Clause 1, and we don’t work any other way. The replacement motor carries our 365-Day Done Right Promise: if it isn’t right, we make it right, no argument and no fee.
DIY or Call Us?

What you can safely check with a FAAC gate: whether the gate itself swings or slides freely by hand when the operator is disengaged. A wooden gate post that’s swollen from Missouri City humidity will bind a gate that a healthy motor can’t move, and that’s a gate problem, not a motor problem. You can also check the obvious, like a breaker that’s tripped or a physical obstruction on the track.
What you should not do is open the FAAC housing and start probing. These units carry 120V or 240V, and a hydraulic 400 Series holds residual pressure even after power is off. Capacitors store charge long after the breaker is thrown. If the motor is warm to the touch or smells like burnt varnish, that’s a trained-technician situation. We name what we found, name what it costs, and name what we left behind, on paper, every time. Call (346) 253-1761 and we’ll get a technician to your Missouri City driveway, usually the same day.
FAQs
A FAAC gate motor in Missouri City generally lasts 7 to 12 years with the 400 Series and 8 to 15 years with the 750 Series, but Texas heat and humidity push capacitors to failure on the earlier end of that range. Regular service, meaning a set of limit-switch readings and a fluid check on hydraulic units, buys you the longer end of that window. If your motor is past the seven-year mark and showing symptoms, call (346) 253-1761 for a diagnostic, the diagnostic opinion is free.
Yes, if the failure is a capacitor, a seal, a relief valve, or a limit switch, that’s a repair in the $120 to $400 range rather than a full motor replacement. The deciding factors are whether the motor windings test within spec and whether the pump still builds pressure on hydraulic units, and we’ll show you the numbers either way before you spend a dime. Call (346) 253-1761 with your model number.
A single FAAC swing-gate motor replacement typically takes two to three hours from arrival to a fully tested gate, and a dual setup on a 400 Series runs about four hours. Sliding-gate 750 replacements fall in the same two-to-three-hour range, longer if the gearbox needs replacement at the same time. We bring the common FAAC models on the truck so we’re not making you wait on a parts delivery.
We stock FAAC 400 Series motors, 750 Series motors, capacitors, hydraulic fluid, and the common mounting plates on the truck because we replace enough of them in Missouri City to keep the truck ready. For less common FAAC models or a control board we don’t carry, we can usually source the part within one to two business days. We also stock parts for LiftMaster, Mighty Mule, and Ghost Controls so we can work on whatever is already on your property.
If your FAAC gate motor is dead or dying in Missouri City, we’ll give you a written price before any work starts, a photo record when we leave, and a full year to hold us to the result. Call (346) 253-1761 and a live person answers, any hour, any day.
Written by Adrian Vance, Owner, Vance Gate Repair Missouri City at Vance Gate Repair Missouri City, serving Missouri City and nearby areas.





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