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 Altadena
Electric gate repair in Altadena typically runs $140 – $380 for common opener and limit switch failures, and we can usually have a technician at your driveway the same day you call. Most repairs on LiftMaster, Viking, Ghost Controls, DoorKing, and Elite operators are completed in one visit. If your gate stopped responding, is reversing on its own, or sounds like it’s grinding, call Calder Gate Repair at (903) 417-0793 and a live person will answer, day or night.

Altadena’s foothill properties put real demands on gate equipment. Long sloped driveways, mature trees dropping debris, and older post footings all take a toll on motors, hinges, and safety sensors. We know these failure points because we work them every week, from the hillside lanes above Altadena Drive down to the flat-lot homes near Fair Oaks Avenue. You’ll get a written price before any work starts and a technician you can track on the way to your home.
Why Calder Gate Repair Is Altadena’s Preferred Electric Gate Repair Company
Calder Gate Repair is the gate repair specialist inside the Relay Home Co. family, established in 2009 and independently owned and operated under The Relay Visibility Guarantee. That guarantee means what it says: you’ll know who is coming, when they’ll arrive, and what the job will cost before a single bolt is touched. No vague four-hour windows and no invoice surprises at the end.
Every Altadena job gets three written promises, every time. A written price before any work starts. A written guarantee on the repair itself. And the 365-Day Done Right Promise: if the repair fails within a full year, Calder returns at no charge to make it right. That second visit is free, it’s in writing, and it’s never treated as an optional add-on.
Our technicians are background-checked, uniformed, and dispatched from the Los Angeles office with a live, trackable arrival time. When you call, a real person answers, 24/7. Nico Alvarez leads the Calder team, and the standard he set is simple: fix the gate correctly the first time, show you before-and-after photos, and send a digital invoice you can pay from a link on your phone.
Electric Gate Motor in Altadena
Electric gate motor work in Altadena usually means one of two jobs: replacing a burned-out or stripped operator, or diagnosing a motor that runs but won’t move the gate. The motor is the workhorse of the whole system, and on Altadena’s sloped foothill driveways it gets worked harder than it would on a flat lot. Operators here are often pushing a 12- to 16-foot swing panel up a grade, so undersized motors fail early. A typical gate motor repair in Altadena runs $160 – $320 before parts, and a full motor replacement with operator swap generally lands between $450 and $900 depending on panel weight, brand, and whether the control board is reused.
When we replace an electric gate motor in Altadena, we size it for the real panel weight and driveway slope, not a flat-lot default. That matters more than most homeowners realize. A motor that’s right for a 10-foot flat gate will struggle on a 14-foot solid-wood panel leaning into a hillside, and the strain shows up as stripped gears, tripped breakers, or a gate that stops mid-cycle and reverses.
Signs Your Gate Motor Is Failing
A motor drawing high amperage but moving slowly, a humming sound with no movement, or a gate that stalls partway up the driveway are all classic symptoms in Altadena. The thermal overload trips more often on hot foothill afternoons, which is also when older motors give out. If you hear a grind every morning at the same spot in the travel arc, the gear train or the capacitor is telling you something.
Replacement vs. Repair
If the motor armature or gearbox is stripped, replacement is usually cheaper than rebuilding. If the issue is a failed capacitor, worn limit switch, or bad wiring connection, repair makes more sense and we’ll tell you that plainly. You’ll get the written price either way before we start.
Gate Access Control in Altadena
Gate access control in Altadena covers the parts that tell the gate when to open and who to open for: keypads, remotes, intercoms, vehicle sensors, safety photocells, and the control board that ties them together. On Altadena properties with long drives, the most common access control failure isn’t the keypad, it’s the safety photocell across a driveway that isn’t level. A misaligned beam will send a false obstruction signal and the gate will reverse or refuse to close. Access control repairs in Altadena typically range from $120 – $280 for keypad or remote programming and sensor realignment, up to $350 – $650 when the control board needs replacement.
Many older Altadena homes still have outdated or missing safety photocells. A UL 325 entrapment protection check fails, and the gate may behave erratically even when nothing is actually in the way. That’s a genuine safety issue for any opener manufactured after 2001, and we won’t leave a gate running without entrapment protection that tests correctly.

Keypad and Remote Programming
Most keypad and remote issues in Altadena are programming drift or dead batteries, not board failures. We reprogram and test on site, and if a part is dead, we carry common replacements for LivingStone, Viking, DoorKing, and Elite systems in the truck.
Control Board Diagnostics
When a gate operates from one input but not another, or cycles erratically overnight, the control board is the usual suspect. We test inputs and outputs systematically rather than swapping boards blindly, because a bad safety sensor or shorted wire can mimic a board failure and the last thing you need is to pay for a board that wasn’t the problem.
Trusted Brands We Service in Altadena
Our technicians are factory-familiar with nine major gate opener brands, so there’s no guesswork when we arrive at your Altadena home. We service Viking, Ghost Controls, DoorKing, and Elite systems regularly, along with LiftMaster, FAAC, BFT, Linear, and Mighty Mule. That matters because Viking boards and DoorKing remotes diagnose differently, and a Ghost Controls opener on a solar-powered hillside gate has grounding issues that a flat-lot install never sees. We keep common boards, remotes, photocells, and limit switches on the truck for faster turnaround in Altadena, and if your part needs ordering, we’ll give you a straight timeline instead of a shrug.
Common Electric Gate Repair Problems We See in Altadena Homes
- Settled post footings on hillside driveways. Altadena’s older hillside properties along the foothill corridors often have long, sloped driveways where a single swing gate panel can run 12 to 16 feet. When the hinge post footing settles on the grade, the gate sags, drags on the driveway, and the operator strains until it trips out or strips a gear.
- Missing or misaligned safety photocells. On a driveway that isn’t level, a photocell beam across the low side of the slope never lines up correctly. The gate reverses erratically or refuses to close. We see this on pre-2000 Altadena properties more than anywhere else in the foothills.
- Slide gates binding on grit and debris. Exposed rack and pinion on a slide gate collects grit from nearby mature trees and the dry-season dust that blows through the foothills. The operator binds, the access control times out, and eventually the motor burns a gear. A 15-minute clean and lube prevents a $400 repair.
- Undersized operators on heavy swing panels. A 14-foot solid-wood gate on a slope needs an operator sized for that weight and grade. Too many Altadena gates were originally installed with operators meant for flat-lot 10-foot panels, and the result is predictable: stripped belts, burned capacitors, and a gate that quits at the worst possible moment.
Pricing for Electric Gate Repair in Altadena, CA
Here’s what Altadena homeowners can expect in today’s market. A straightforward opener repair, like a limit switch or capacitor replacement, runs $140 – $280. Full gate motor replacement with operator swap lands between $450 and $900, depending on panel weight, brand, and whether you’re swapping a Viking for a Viking or changing brands entirely. Keypad and remote programming runs $120 – $280, control board replacement falls between $350 and $650, and a full safety photocell replacement with alignment testing runs $180 – $320 per pair.
What changes the number most? Panel weight and slope. A 16-foot iron gate on a 10-degree grade is a different job than a 10-foot aluminum gate on flat ground, and we price both honestly. Every estimate is free and in writing before you approve anything. The number we write is the number you pay, always. Call (903) 417-0793 and we’ll walk through your gate over the phone, then send a technician with a real price.
We Also Serve Cities Near Altadena
While this page is focused on Electric Gate Repair in Altadena, our technicians also serve Pasadena, San Marino, Sierra Madre, and South Pasadena. Many of our Electric Gate Repair customers reach out from homes along the Altadena corridors and have us handle a family member’s gate in Pasadena the same week. If you’re in one of these nearby cities and need a written estimate, call (903) 417-0793.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena 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 Altadena
The two most common causes on Altadena hillside properties are a misaligned safety photocell and an obstruction detection reading from the operator. On a sloped or uneven driveway, the photocell beam can fall out of alignment as post footings settle, so the gate sees a phantom obstruction and reverses. A technician should test photocell alignment, check the obstruction sensitivity setting, and inspect the physical travel path for debris. Call (903) 417-0793 and we’ll diagnose it at your Altadena home, usually the same day.
If the motor hums but doesn’t move the panel, the capacitor or the gear train is usually repairable. If the gate moves but trips the breaker or stalls under load, the motor may be undersized for the panel weight and slope, which is common on 12- to 16-foot swing gates in Altadena, and replacement makes more sense. We’ll test the motor, board, and limit switches and show you the numbers. The choice is always yours with a written price.
We service Viking, Ghost Controls, DoorKing, and Elite regularly in Altadena, plus LiftMaster, FAAC, BFT, Linear, and Mighty Mule. Our technicians carry common replacement parts for these brands on the truck, which means faster turnaround on Altadena calls and no multi-week waits for basic boards, remotes, and photocells.
A full installation on an Altadena hillside property typically takes one to two days, and it’s scheduled work, not same-day. The job includes concrete post footings set to depth on uneven ground, operator mounting sized for the panel weight and grade, power run to the gate, safety photocell alignment across a driveway that may not be level, and full reversal testing. You get a free measure and a written installation price before any work is scheduled. Call (903) 417-0793 and we’ll come out to measure.
Solar makes sense on an Altadena gate when the panel is light and the position gets consistent sun, which many foothill driveways do have. On a heavy 14-foot swing gate, solar is less reliable because the motor draws more current than a small panel array can replace, especially after cloudy weeks in the foothills. We’ll look at your gate weight, panel orientation, and shading from mature trees, then give you an honest recommendation. Either way, you’ll see a written price before we start.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving Altadena and the surrounding foothill communities.





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