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Get your free estimateBFT Gate Motor Replacement: The San Antonio Owner’s Guide
BFT gate motor replacement in San Antonio typically runs $650 to $1,450 installed, and we stock direct-fit BFT-compatible motors plus the control boards, capacitors, and limit switches that usually fail alongside them. Most swaps take 90 minutes to half a day on site. The way owners usually find us: the gate ran fine for years, then one San Antonio morning it hums and doesn’t move, or it opens but won’t close, or the remote stopped doing anything at all and the manual release feels like the only way in.
That’s a BFT motor or drive component giving up, and it’s exactly what we fix. Nico Alvarez and the Calder Gate Repair San Antonio team have pulled enough BFT openers apart to know which serial number ranges had weak capacitors, which boards cook themselves in a Texas July, and when the motor itself is actually fine and the problem is a $40 limit switch that dirtied up. We’ll tell you which one you have before we charge you anything.
Which BFT Models This Applies To
BFT’s lineup in the U.S. splits into a few families, and the motor you need depends on which one your San Antonio gate uses. The big names we replace motors on every month: the Deimos series (slide and swing arms, common on residential driveway gates in Stone Oak and Alamo Heights), the Phobos line (heavier slide gates, often paired with ornamental iron around the Dominion), the Icaro and Kustos lines for swing gates, and the BFT SUB and HYDRA underground operators you sometimes find on estate properties near Leon Springs.
The compatibility gotcha with BFT: the motor itself is rarely the only thing that fails. BFT builds the controller board, capacitor, and motor as matched units, so if you swap in a motor from a different model year without checking the board revision, it will run hot or trip the thermal overload in a week. We always read the model tag and board version before ordering anything, because a Deimos BT A400 from 2016 does not always drop into a 2021 housing cleanly.
On OEM versus aftermarket: BFT’s OEM motors carry the brand markup, and for newer operators under warranty that’s the right call. But for a ten-year-old Deimos where the motor windings are shot, a quality aftermarket motor with the same torque rating and RPM spec is often the smarter spend. We’re clear about which we’re quoting and why. We are an independent gate repair company in San Antonio, not a BFT dealer or affiliate, so we recommend what fits your gate and your budget, not what moves inventory.
We also stock and install parts for LiftMaster, Mighty Mule, and Ghost Controls, so if you’re not sure what’s on the gate post, send us a photo and we’ll identify it before you book anything.
Styles & brands we work with


Signs Your BFT Gate Motor Is Failing
Here’s what San Antonio homeowners call us about, and what’s usually underneath each symptom:
- Gate hums but doesn’t move. The motor is getting power but the capacitor that gives it the starting jolt has failed, or the drive gear has stripped. This is the classic BFT failure mode we see after a few years of San Antonio heat cycles, and it’s usually a $60 – $120 part, not a full motor.
- Gate opens fine, won’t close (or vice versa). That’s almost always a limit switch or a photobeam issue, not the motor. The limit switch tells the gate when to stop, and when it drifts out of adjustment or burns out, one direction quits. If the motor were dead, you’d get nothing in either direction.
- Remote works, manual button works, but the gate barely crawls. The motor’s starting capacitor is on its way out or the run winding is degraded. It will get worse over a few weeks, then stop entirely, usually on the day you’re late for work.
- Circuit breaker trips when the gate operates. The motor is pulling more amperage than it should, which means internal winding damage or a failing capacitor. Ignoring this one will take out the BFT control board next, which doubles the repair bill.
- Gate slams at the end of travel. The motor is running but the operator’s internal speed control or limit logic has failed. On BFT slide gates, this is dangerous, especially with a heavy iron gate. Shut the opener off at the breaker and call us.
Replacement Cost & What’s Included
In San Antonio, BFT gate motor replacement runs $650 to $1,450 installed for most residential Deimos and Phobos units, including the motor, any required capacitor or mounting hardware, and labor. Larger underground operators like the HYDRA line start higher because the motor sits in a vault below grade and takes longer to access and reseal.
Here’s how the pricing breaks down in our San Antonio market:
- Motor unit only (part): $280 – $620, depending on model and OEM vs. aftermarket
- Installation labor: $250 – $450 for a standard slide or swing arm swap
- Control board replacement (if needed): $180 – $450
- Capacitor replacement (most common add-on): $40 – $90
- Limit switch pair (adjustment or replacement): $45 – $120
Every quote is written before we open the toolbox. That means the price Nico Alvarez sends you is the price you pay, period. No discovery charges, no surprise line items when the invoice arrives. And the work itself carries the 365-Day Done Right Promise: if the replacement fails within a year, Calder returns and makes it right at no charge. Free second visit if the repair doesn’t hold. We back that in writing on every single job.
See the difference
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AfterDIY or Call Us?
BFT gate motors run on 120V or 240V at the board and carry exposed capacitor terminals even after the power is off, so if you don’t know how to discharge a capacitor safely, don’t open the housing. That’s the plain truth. A capacitor from any gate opener can hold a charge that will knock you on your back.
What you can safely check: visually inspect the motor housing for cracks or ant/gecko intrusion (common in San Antonio garages), test the outlet with something else plugged in, and confirm the breaker hasn’t tripped. If the gate still won’t move or the symptom matches anything above, call us at (361) 314-4803. We’ll ask a few questions, give you a real cost range before we schedule, and send a background-checked, uniformed technician with a live arrival time you can track. No four-hour windows, no phone tag.
FAQs
Expect 7 to 10 years from a properly installed BFT motor in the San Antonio climate, with the heat and humidity taking a toll on capacitors and control boards before the motor windings themselves usually fail. A motor kept adjusted and protected from direct sun will outlast one that’s slamming at the end of travel or sitting in standing water. Call (361) 314-4803 and we can check yours.
In many cases, yes: a failed capacitor, a dirty limit switch, or a bad run capacitor can be swapped for under $120 without touching the motor itself. We always diagnose the board and capacitor first before recommending a full motor replacement. If we can save the motor, we’ll tell you, and the price will be in writing before any part is ordered.
Most residential BFT slide or swing arm motor swaps take about 90 minutes to 4 hours on site, depending on whether we’re also doing the control board or limit switches at the same time. We’ll tell you the expected window when you book, and your technician arrives with a live, trackable arrival time. Same-day appointments are available for most San Antonio neighborhoods.
We stock the most common BFT Deimos and Phobos motors, capacitors, and limit switches on our service vehicles because those fail most often around San Antonio. If your model needs something we don’t have on board, we’ll give you the ETA before we start and the written price won’t change when the part arrives.
Call Calder Gate Repair San Antonio for Your BFT Motor Replacement
If your BFT gate motor is humming, crawling, or dead, call us at (361) 314-4803. You’ll talk to a live person, get honest pricing for your specific model, and have a written quote before any work begins. Nico Alvarez and the Calder Gate Repair San Antonio team serve all of San Antonio and the surrounding areas, from the Pearl District out to Boerne, and the 365-Day Done Right Promise applies to every motor replacement we install. If the price isn’t in writing, it isn’t real, we’ll text it to you before we open the toolbox.
Written by Nico Alvarez, Owner & Lead Gate Technician, Calder Gate Repair San Antonio at Calder Gate Repair San Antonio, serving San Antonio and nearby areas.