Wrought iron
Wood & steel frame
Farm & ranch
Sliding driveway gates
LiftMaster operatorsFree 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.
Get your free estimateFast, Reliable Gate Opener Repair Across Atherton
Gate opener repair in Atherton typically runs $260 – $940 depending on the operator type, the weight of the gate, and whether we’re replacing a circuit board or just resetting limit switches. Most repairs are completed same day, and we stock parts for FAAC, BFT, Linear, and Viking operators so we’re not ordering stuff and making you wait. Calder Gate Repair San Jose coordinates dispatch from our Bay Area office and sends background-checked, uniformed technicians to Atherton with a live, trackable arrival time. Call (669) 666-6859 and you’ll get a real person on the phone, not a recording.

Why Calder Gate Repair San Jose Is Atherton’s Preferred Gate Opener Repair Company
Atherton isn’t a typical service route for us. The properties on Selby Lane, Atherton Avenue, and around Lindenwood demand a different kind of attention. Gates here weigh four times what a standard suburban gate weighs. When a hydraulic swing operator on an oversized wrought iron gate fails, you can’t just swap in an off-the-shelf arm and call it done. Our techs understand the load calculations on custom steel gates, the way a sagging hinge post changes everything downstream, and how to keep the repair invisible so the gate looks exactly like it did the day it was installed.
We also get the privacy concern. Atherton homeowners don’t want a service van blocking their driveway for three hours or technicians wandering around the property. Our crews arrive in marked vehicles, check in with a live arrival time you can track from your phone, and document everything with before-and-after photos. Every job gets a written price before a single bolt is turned, and every repair carries the 365-Day Done Right Promise. If the repair fails within a year, we return at no charge. That’s not a sales line. It’s written on the invoice.
Styles & brands we work with





Electric Gate Closers in Atherton
Electric gate closers in Atherton are a different animal than what you’d find in Menlo Park or Redwood City. On most Atherton estates, the “closer” isn’t a little hydraulic arm mounted to the gate frame. It’s a full operator with a rack and pinion or articulated arm, wired into a control board that talks to loop detectors, keypads, and often a camera or intercom system. When the closer fails, the gate either creeps shut too slowly, slams at the end of travel, or stops midway and beeps at you. We diagnose the whole chain, not just the closer, because a failing limit switch or a weak capacitor will mimic a bad operator every time.
Closer Diagnostics on Heavy Custom Gates
The first thing we check on an Atherton gate is the physical load. A custom steel gate that’s sagged half an inch puts enormous strain on the closer’s motor, and no new part fixes that. We measure the gap at the hinge side, check for cracks at welded joints, and confirm the gate’s balance before touching the operator. Then we work through the control board, the clutch, and the limit switches, the small sensors that tell the gate when to stop at full open and full closed.
Quiet, Precise Closer Adjustments
Atherton homeowners care about noise. A gate that groans every time it cycles is unacceptable on a street where the nearest neighbor is an acre away but the gate is right outside a bedroom window. We tune the hydraulic speed, inspect the gear train for wear, and replace any bearing that’s starting to chatter. On FAAC and Viking operators, we also recalibrate the obstacle detection so the gate doesn’t reverse unnecessarily when a slower-closing pedestrian gate is in the same zone. Typical electric gate closer repair in Atherton runs $320 – $680 before parts, depending on whether it’s an adjustment or a motor replacement.
Gate Servicing in Atherton
Gate servicing in Atherton should be annual, and most of our clients treat it that way. A gate that cycles six or eight times a day accumulates more wear than one that opens twice a week, and on a one-acre estate with a long driveway, nobody notices the gate getting slower until it stops completely. A full service includes hinge and post inspection, operator lubrication, limit switch testing, loop detector calibration, battery backup testing, and a written report. On paired pedestrian and vehicle gates, we test both from the same keypad and verify the interlock timing. Gate servicing in Atherton typically costs $180 – $390 depending on how many operators are on the property and how far the gate sits from the main road.
Paired Gate and Keypad Synchronization
A configuration we see constantly in Atherton and almost nowhere else is a matched pedestrian gate wired to the same opener and keypad as the vehicle gate. It’s elegant when it works. When the timing drifts, the pedestrian gate opens before the vehicle gate finishes cycling, or the keypad triggers one but not the other, or the safety photocell trips because both gates are moving at once. Our servicing includes a full sync check on every paired setup. We test individually, test together, and adjust the delay settings on the control board so the sequence feels intentional, not accidental.
Battery Backup and Storm Readiness
Power outages in Atherton are rare but they happen, usually during winter storms when a tree takes out a line on Middlefield or Alameda de las Pulgas. Most gate openers have a battery backup, but almost no one tests it until the gate won’t open. During a service, we load-test the battery, confirm the manual release functions, and show you how to operate the gate when the power’s out. That’s part of why servicing before the rainy season is a smart move. A homeowner who knows how to open their gate manually doesn’t panic when the battery dies during the third week of January.

Trusted Brands We Service in Atherton
Our techs are factory-familiar with FAAC, BFT, Linear, and Viking, along with LiftMaster, DoorKing, Elite, Ghost Controls, and Mighty Mule. That matters in Atherton because we’re not learning the wiring diagram from a YouTube video at your gate. FAAC hydraulic operators show up on a lot of older estate gates here, and Viking swing operators are common on newer custom installations. We keep common boards, remotes, photo eyes, and limit switches in our Bay Area stock, so a repair doesn’t stall waiting on a part that ships from a warehouse in Ohio. If we don’t have it locally, we’ll tell you before we leave the first visit, not after you’ve paid a deposit.
See the difference
Before
After
Before
After
Before
AfterCommon Gate Opener Repair Problems We See in Atherton Homes
- Underground operator voltage drop: On long driveway runs, the operator sits hundreds of feet from the power source. Wire gauge that was fine twenty years ago now delivers inconsistent voltage, so the gate opens fine some days and faults others, especially when a car is sitting on the loop detector. We test voltage under load and often install a boost transformer or heavier conductors.
- Hairline cracks in welded steel joints: Custom ornamental gates on Atherton estates flex with every swing cycle. Over years, hairline cracks form at the weld points where the pickets meet the frame. The gate starts to feel mushy, the operator’s motor works harder, and eventually the crack propagates until the gate jams. We catch these during servicing and recommend welding repair before the operator burns out.
- Dead battery backup after a storm: A winter storm knocks out power, the gate opener runs on battery for a few hours, then dies. The homeowner never tested the manual release, so the gate is now stuck closed or open. We replace the battery, test the charger, and show you exactly how the manual release works so next time it’s not an emergency.
- Photocell misalignment on paired gates: When a pedestrian gate and vehicle gate share a safety zone, a photocell that’s drifted even slightly will stop both gates mid-cycle. On flat Atherton lots, thermal expansion of the metal posts in summer shifts the alignment enough to cause intermittent faults. We remount and seal the photo eyes, then verify the beam path with a test target.
Pricing for Gate Opener Repair in Atherton, CA
Here’s what you should expect before you call. A basic service call and diagnostic in Atherton runs $95 – $180. Replacing a limit switch or photo eye typically lands between $180 and $320. Circuit board replacement on a FAAC or Viking operator runs $280 – $650 depending on the model. Hydraulic operator repair on a heavy custom gate starts around $600 and can reach $940 or more when the ram or pump needs replacement. Underground operator diagnosis and voltage correction runs $340 – $700 because of the wire pull and testing involved. Every job gets a written price before any work starts, and that price includes the 365-Day Done Right Promise, a written guarantee, and a free second visit if the repair fails within the year. Call (669) 666-6859 for an exact quote. Estimates are free, and the number on the invoice is the number we agreed to before we started.
We Also Serve Cities Near Atherton
Calder Gate Repair San Jose handles Gate Opener Repair across the Peninsula, including Menlo Park, Redwood City, Stanford, and Portola Valley. If you’re in Atherton or a neighboring town and your gate operator is acting up, our Atherton service area covers the whole stretch. Same-day dispatch is available for emergency repairs, and every call gets a live person, 24 hours a day.
Serving Atherton, CA - Our Local Coverage Area
We’re based in the Atherton 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 Gate Opener Repair in Atherton
Yes, we do this regularly on Atherton estates where the pedestrian gate and vehicle gate were originally built as a matched pair. The work involves wiring both gates to the same control board or adding a receiver that responds to the same keypad, then setting separate delay times so the pedestrian gate doesn’t open while the vehicle gate is still moving. We verify the interlock logic, test the safety photocells in both zones, and leave you with a single keypad that controls both gates. Call (669) 666-6859 and we’ll come assess your current setup and give you a written price.
A gate that fails only at full open almost always points to a faulty limit switch or a misaligned magnet on the gate track. The limit switch tells the operator when to stop, and if the switch is worn or the magnet shifted, the control board reads the gate as off-track and shuts down to protect the motor. On Atherton gates with long travel, we also check for voltage drop at the far end of the run. It’s a quick diagnosis, and the fix usually runs $180 – $320.
Yes, Atherton follows California state requirements, which include UL 325-compliant entrapment protection on all automated gates. That means photo eyes or contact edges that reverse the gate if something is in the way, plus an audible alarm if the gate reverses twice in a row. We test entrapment protection on every repair and service call, and we’ll bring your gate up to current code if it’s missing. It’s not optional, and it’s not something to skip to save a few dollars.
Sag correction starts with the hinge post, not the gate leaf. On heavy custom iron gates, the post shifts over time, and the gate drops, which throws off the operator and trips the safety sensors. We reset the post with steel shims, inspect the hinge welds for cracks, and rebalance the gate before touching the opener. Then we adjust the operator’s clutch or torque settings to match the corrected weight. It’s the difference between a repair that lasts three months and one that lasts ten years.
First, find the manual release. Most openers have a keyed release on the operator or a pull chain inside the gate. If the battery backup is still charged, the gate may open once or twice on battery. If the battery is dead and the gate is stuck, don’t force it. Forcing a hydraulic or rack-and-pinion operator can damage the motor. Call (669) 666-6859 and we’ll dispatch a tech to Atherton, often same day, to release the gate safely and diagnose the power issue. We also test and replace battery backups during routine servicing so this doesn’t catch you off guard.
Written by Nico Alvarez, Owner at Calder Gate Repair San Jose, serving Atherton and the surrounding Peninsula.