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.
Fast, Reliable Electric Gate Repair Across Cupertino
An electric gate that won’t open, reverses mid-cycle, or grinds to a halt usually comes down to a few fixable causes: a tired motor, failing safety sensors, or aging wiring that can’t carry enough power. We’re Calder Gate Repair, and our Electric Gate Repair team fixes these problems across Cupertino daily. Call (903) 417-0793 and a live person answers 24/7, books your appointment, and gives you a trackable arrival time, not a four-hour window.

Most repairs in Cupertino run $180 – $520 before parts, and you’ll get a written price before we touch a single bolt. No surprises at the invoice.
Key takeaways:
- Live answer 24/7, background-checked techs, trackable arrival time
- Written price before work starts, every time
- 365-Day Done Right Promise: free return visit if the repair fails
- We know all nine major opener brands, including LiftMaster, FAAC, DoorKing, Linear, Viking, Ghost Controls, BFT, Elite, and Mighty Mule
Why Calder Gate Repair Is Cupertino’s Preferred Electric Gate Repair Company
Cupertino gates have a specific set of problems. We know them because we see them every week. Older neighborhoods like Rancho Rinconada and Garden Gate were built out by the late 1960s and 1970s, and that means legacy low-voltage wiring in buried conduit. Undersized transformers can’t always supply modern operators, and we regularly run voltage-drop testing to find the real culprit when a gate stalls or reverses unexpectedly. A company that doesn’t know Cupertino’s housing stock will swap parts and hope. We test first.
Every Cupertino customer gets the same three non-negotiables, in writing: a price before we begin, a written guarantee on the repair, and a free second visit if it fails within 365 days. That’s the 365-Day Done Right Promise by name, and it’s on every job we do here.
We’re part of the Relay Home Co. family, founded in 2009. The crew serving Cupertino is coordinated from the brand’s San Francisco Bay Area office, dispatched locally. You’ll see a uniformed tech with a live arrival time you can track from your phone, before-and-after photos of the work, and a digital invoice you pay from a link. Nico Alvarez leads our gate repair operations, and the standard never slips.
Automatic Gate Repair in Cupertino
Automatic Gate Repair in Cupertino typically means diagnosing a gate that opens halfway, refuses to close, or triggers the entrapment protection and reverses for no obvious reason. We start by checking the operator, the safety sensors, and the wiring path. In Cupertino, the wiring path is often the problem. Homes built in the 1960s and 1970s have control wiring in conduit that’s been underground for 50 years, and voltage drop under load makes modern operators behave erratically. Most automatic gate repairs here run $220 – $480 before parts, depending on what the diagnostic turns up.
Safety Sensor and Control Diagnostics
When a gate reverses mid-cycle, the first suspect is a photocell that’s drifted out of alignment or a lens fogged with dust. We clean, realign, and test entrapment protection under UL 325 before we call anything fixed. If the control board is the issue, we quote a replacement board openly, with the exact cost in writing before we proceed.
Limit Switch and Operator Adjustment
The limit switch, which is the small sensor that tells the gate when to stop, wears out. It’s a common failure on older installations, especially when the gate has been left to slam against the post for years. We replace and recalibrate the switch, check the motor’s current draw, and test the full open-close cycle until it’s smooth.
Electric Gate Motor in Cupertino
An Electric Gate Motor in Cupertino almost never dies all at once. It usually gives warning: slower operation, a burning smell, a humming noise with no movement, or a gate that needs a push to get going. When we replace a motor, we’re also checking whether the transformer can actually supply it. In older Cupertino neighborhoods, we’ve seen motors replaced and then immediately stressed by undersized low-voltage wiring. The gate stalls on the next hot day and the customer thinks the new motor failed. It didn’t. The power feeding it was insufficient.
Operator Motor Replacement
Most motor replacements in Cupertino run $350 – $700, including the motor and labor. We quote the motor by brand and model, never a vague “price per job.” If you have a DoorKing linear on a slide gate, you’ll see that part on the invoice. If it’s a Viking swing arm, same thing.

Transformer and Power Supply Work
Voltage drop under load is the hidden cause of many intermittent failures. We run a load test on the existing transformer and wiring. When the transformer is undersized, we upsize it and, where necessary, pull new low-voltage conductors. This isn’t always the cheapest fix, and we’ll tell you that up front. It is the fix that keeps the gate working for years instead of weeks.
Trusted Brands We Service in Cupertino
We’re factory-familiar with nine major gate opener brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. In Cupertino, we see a lot of LiftMaster swing operators in the newer developments and FAAC slide operators on ranch-style lots. We keep common parts for Viking, Ghost Controls, and DoorKing in local stock, which means faster turnaround when the specific failure is a worn gear, a dead controller, or a failed capacitor. You won’t wait a week for a part to ship across the country.
Common Electric Gate Repair Problems We See in Cupertino Homes
- Aging low-voltage control wiring: Underground conduit installed decades ago in neighborhoods like Garden Gate wasn’t sized for modern gate operators. Voltage drop under load causes stalling, slow operation, and unexpected reversals, especially on long driveway runs.
- Expansive clay soil and shifting gate posts: Cupertino’s clay soil swells in winter and shrinks in summer. Gate posts set directly in it slowly drift, the gate sags, and the hinge post cracks. A simple hinge adjustment won’t fix it; the footing needs reinforcement.
- Misaligned safety photocells and edge sensors: Dust, spider webs, and seasonal movement knock sensors out of alignment. The gate triggers entrapment-protection faults, reverses mid-cycle, or refuses to close at night. This is one of the most common calls we handle.
- Worn racks, pinions, and hinge hardware: Slide gates on ranch driveways run on a rack and pinion system that wears. We’ve replaced rack sections on FAAC and Linear slide operators in Cupertino where a simple adjustment would have failed again within months.
Pricing for Electric Gate Repair in Cupertino, CA
Here’s what we charge in the Cupertino market, before parts:
- Diagnostic visit: $75 – $125, credited toward the repair if you proceed
- Safety sensor repair or realignment: $120 – $200
- Limit switch replacement: $180 – $260
- Control board replacement: $280 – $550 depending on brand
- Motor replacement: $350 – $700 depending on operator type and access
- Full operator replacement with new arm and hardware: $650 – $1,400
- Installation of a new gate, groundworks, power run, and safety edges: $3,000 – $9,000, measured and quoted in writing
What moves the number? Gate type, wiring condition, post condition, and whether we’re repairing or replacing. You’ll always see the exact number in writing before we begin. Call (903) 417-0793 for a free estimate. We don’t do vague pricing.
We Also Serve Cities Near Cupertino
Beyond Cupertino, Calder Gate Repair covers Electric Gate Repair in Cupertino plus the surrounding communities of Saratoga, Sunnyvale, Mountain View, and Santa Clara. If your gate is acting up in any of these areas, the same live 24/7 dispatch, written pricing, and 365-Day Done Right Promise applies.
Serving Cupertino, CA - Our Local Coverage Area
We’re based in the Cupertino area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Electric Gate Repair in Cupertino
First, check whether the photo-eye lenses are clean and aligned, something you can do visually. In Cupertino, dust and spider webs inside the sensor housing are a frequent cause of intermittent reversal. If the lenses are clean and the gate still reverses, the cause is often wiring voltage drop or a failing limit switch, and that needs professional diagnosis. Call (903) 417-0793 and we’ll walk you through a quick check over the phone, then schedule a visit if needed.
You can absolutely replace just the motor in most cases. We replace motors by themselves all the time on LiftMaster, FAAC, DoorKing, Linear, Viking, Ghost Controls, BFT, Elite, and Mighty Mule operators. What matters is whether the motor is the actual failure point or a symptom of another problem, like undersized wiring or a failing transformer. We test before we quote, so you only pay for what’s actually broken.
Most electric gate repairs in Cupertino take 1 to 3 hours on site once we arrive. If parts need to be ordered for an older brand, the repair may span two visits, but we’ll tell you that before we begin and give you a realistic timeline. Emergency response to Cupertino neighborhoods is typically available the same day.
A proper electric gate installation includes more than just mounting the operator and hanging a gate. It means groundworks for secure post footings, a correct power run, safety edges and photocells for entrapment protection under UL 325, reversal testing at both full-open and full-close positions, and operator programming. We measure, order materials, schedule, and give you a written price before any installation work starts. We never promise same-day turnaround on installations; we promise a measured, scheduled, clean install that passes every safety check.
Yes. We service LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule across Cupertino. If you know the brand on your gate, call (903) 417-0793 and tell us what’s happening. The person who answers can usually tell you whether it’s a known issue with that model and get you scheduled.
Call Calder Gate Repair for Electric Gate Repair in Cupertino
If your electric gate is stalling, reversing, grinding, or refusing to open in Cupertino, call (903) 417-0793. A live person answers. You’ll get a trackable arrival time, a written price before we start, and a written guarantee on the work. If the repair fails within 365 days, we return at no charge. That’s the promise, in writing, on every job.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving Cupertino through the Relay Home Co. network since 2009.





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