Wood & steel frame
Wrought iron
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 Electric Gate Repair Across Redwood City
Electric gate repair in Redwood City typically runs $180 – $450 for most opener and motor fixes, and our techs regularly arrive same-day from the Bay Area dispatch office. If your gate won’t open, grinds when it moves, or has stopped responding to the remote entirely, call Calder Gate Repair San Jose at (669) 666-6859. We know the hillside estates off Farm Hill Boulevard, the mid-century tracts in Redwood Heights, and the newer builds down in the flats. Each one fails differently, and we’ve seen all of it.
Redwood City’s patchwork of older hillside estates, mid-century suburban tracts, and dense new developments means gate repair technicians must routinely handle everything from original 1950s gate hardware corroded by coastal fog to heavy automated gates on steep driveways, requiring a versatility rare in neighboring cities. Our Electric Gate Repair team carries the parts, tooling, and fabrication gear to fix what other shops walk away from. You get a written price before anything is touched, and a live person answers when you call.
Why Calder Gate Repair San Jose Is Redwood City’s Preferred Electric Gate Repair Company
Calder Gate Repair is the dedicated gate repair specialist inside the Relay Home Co. family, established 2009. We’re independently owned and operated, and our techs are background-checked, uniformed, and factory-familiar with nine major opener brands including LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. Redwood City homeowners call us because we show up with a live, trackable arrival time, not a four-hour window you have to babysit.
Reviews from Redwood City customers consistently mention two things: the tech actually explained what failed, and the invoice matched the quote. That’s not luck. It’s the way Calder works. Every job carries three non-negotiable guarantees: a written price before any work starts, a written guarantee on every repair, and a free second visit if the repair fails within the 365-Day Done Right Promise window. Nico Alvarez runs the operation with a simple rule: if it’s not done right, we come back at our cost. No forms, no friction.
Response time to Redwood City is typically same-day for opener failures, grinding motors, and dead keypads. Scheduling is coordinated from the brand’s San Francisco Bay Area office, and crews serve Redwood City locally. When you book, you get a real arrival time you can track from your phone. That’s The Relay Standard: live arrival time, before-and-after photos, and a digital invoice you pay from a link.
Styles & brands we work with
Commercial Gate Operator in Redwood City
A Commercial Gate Operator in Redwood City is the heavy-duty motor and drive assembly that opens and closes a gate on a business, apartment complex, or estate property with high daily cycle counts. In Redwood City, these units show up on office parks near the 101 corridor, apartment buildings off El Camino Real, and the occasional private estate in Emerald Hills where the driveway sees more traffic than a small lot. When one fails, it’s not an inconvenience. It’s a security gap and a liability.
Repair work on commercial operators in Redwood City typically runs $350 – $1,200 before parts, depending on whether the problem is a burned control board, a stripped drive gear, or a seized motor. A full operator replacement on a heavier estate gate can push higher, and we always quote the exact figure in writing before starting. Calder techs are trained on Viking, BFT, and FAAC commercial lines, plus the residential crossover units you find on duplexes and small HOAs.
Slide Gate Drive Systems
Slide gates on commercial properties use a rack and pinion drive, a toothed rail along the gate that a motor-driven gear engages to move the gate horizontally. Redwood City’s morning fog puts a steady film of moisture onto these exposed steel racks. Over time that becomes corrosion, then binding, then stripped gears. We replace damaged rack sections, re-align the pinion, and seal the assembly against the next fog season.
Operator Control Boards and Safety Loops
Commercial openers rely on control boards and vehicle detection loops buried in the asphalt. When a loop fails, the gate won’t sense a car and either won’t open or worse, closes on one. Our techs diagnose loop faults with a multimeter before ripping up pavement, and we flash or replace boards from Viking and BFT on the truck. That saves Redwood City property managers a second visit and an angry tenant.
Automatic Gate Repair in Redwood City
Automatic Gate Repair in Redwood City covers everything from a dead remote on a mid-century ranch gate in the flats to a full motor rebuild on a hillside ornamental gate that weighs four hundred pounds. Most automatic gate failures trace back to three culprits: a worn limit switch (the small sensor that tells the gate when to stop), a capacitor that’s given up, or a hinge that’s been silently corroding for a decade and forcing the motor to work harder until it burns out.
In Redwood City, typical automatic gate repair runs $180 – $450 for limit switches, capacitors, remote reprogramming, safety sensor alignment, and control board swaps. Motor replacement on a heavy custom gate runs higher, and we quote it upfront. If your gate moves but groans, don’t wait. A grinding gate is a motor pulling more amps than it should, and the clock is running on a full failure. Call (669) 666-6859 for a free estimate.
Opener Motor and Limit Switch Repair
The opener motor is the muscle. The limit switch is the brain that tells the motor when it’s done. When a limit switch drifts in Redwood City’s temperature swings, your gate stops short of closed or slams into the post. We calibrate or replace the switch, check the motor’s amp draw, and confirm the gate travels its full path without binding. That’s the kind of repair that should never take two visits.
Safety Sensor and Photocell Alignment
Safety sensors, or photocells, are the small eyes near the bottom of the gate that stop it if a person or car crosses the path. Fog in Redwood City condenses inside the sensor housings and shorts them or fogs the lenses. We clean, re-seal, and align the beam so the gate closes reliably without false trips. A misaligned sensor will have your gate reversing for no reason, which convinces a lot of people the motor is dying when it isn’t.
Trusted Brands We Service in Redwood City
We keep repair parts in the truck for Linear and FAAC openers, the two brands we see most often across Redwood City’s hillside estates and newer flatlands builds. Calder techs are also factory-familiar with LiftMaster, BFT, DoorKing, Elite, Mighty Mule, Ghost Controls, and Viking. If your opener predates the internet, we’ll still diagnose it. If the original part is no longer manufactured, we machine a replacement. Our fabrication capability means a 1960s custom gate doesn’t have to be ripped out and replaced with something that looks wrong for the house. Most repairs are completed in one visit.
See the difference
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After
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AfterCommon Electric Gate Repair Problems We See in Redwood City Homes
- Morning Bay fog corroding rack and pinion drives. On hillside slide gates, the exposed steel rack sits in damp air every morning. The pinion gear eats through rusted teeth until the gate binds mid-travel or strips entirely. We replace rack sections and re-seal them against moisture.
- Winter storm runoff undermining post footings. Steep driveways in Redwood Heights and Emerald Hills channel water straight to the gate posts. When a footing washes out, the gate sags, the latch misses, and the operator strains against gravity until the motor cooks. We re-set posts in fresh concrete and re-balance the gate.
- Salt-air seized hinges on 1960s custom iron. Original ornamental gate hinges from the sixties are beautiful and built to last, except the coastal salt air has been working on them for sixty years. A seized hinge makes the motor draw double its rated amps. We heat, free, and re-bush old hinges or fabricate replacements that match the original design.
- Fog-fouled safety photocells. Redwood City’s marine layer condenses inside the small sensor eyes at the gate’s base. The gate starts reversing for no reason or refuses to close. It’s usually a cleaning and re-sealing job, not a new sensor, but it looks like a motor failure to most homeowners.
Pricing for Electric Gate Repair in Redwood City, CA
Most electric gate repair in Redwood City runs $180 – $450 before parts. That covers limit switch replacement, remote control reprogramming, keypad repair, safety sensor alignment, and most control board diagnostics. Opener motor replacement runs $450 – $900. Full operator replacement on a heavy custom gate can reach $1,200 – $2,500 when we’re matching ornamental hardware and re-balancing a gate that’s been sagging for years.
What moves your price: gate weight, whether the damage is electrical or structural, and whether original parts are still manufactured. If they aren’t, we fabricate on-site, which adds labor but saves the cost of a full gate replacement. Every quote is written before work starts. The number you approve is the number on the invoice, always. Call (669) 666-6859 for a free estimate on your specific gate.
We Also Serve Cities Near Redwood City
Beyond Redwood City, our crews cover Atherton, Menlo Park, Stanford, and Portola Valley. If you’re in one of those areas with a gate that won’t open or a motor that’s grinding, the same team responds. Same written pricing, same live arrival time, same 365-Day Done Right Promise.
Serving Redwood City, CA - Our Local Coverage Area
We’re based in the Redwood City 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 Redwood City
What you’re seeing is almost always a failed post footing. Steep driveways in neighborhoods like Emerald Hills and off Farm Hill Boulevard channel winter storm runoff directly to the gate posts, eroding the concrete around the footing. The post tilts, the gate sags, and the panel looks straight but the geometry is ruined. The fix is re-setting the post in fresh concrete and re-balancing the operator. Call (669) 666-6859 if your gate looks like it’s leaning, and we’ll confirm it before it destroys the motor.
Fog condenses inside the photocell housings and on the lenses, which causes two problems: false reversals where the gate won’t close, or a shorted sensor board that kills the safety circuit entirely. In Redwood City this happens more often than in inland cities because the marine layer sits on the hills every morning. We clean the internals, re-seal the housings, and realign the beam. It’s usually a one-visit fix in the $180 – $250 range.
Only if the gate no longer has functioning safety sensors or a working reverse mechanism on contact. Current California entrapment standards require two independent safety systems: a photocell and a reversing edge or contact sensor. Many original 1960s gates in Redwood City have neither. We can retrofit modern sensors and reversing edges onto the original gate and operator, so you keep the look and meet the code. Estimates are free.
The grinding is metal-on-metal contact somewhere in the drive path. On Redwood Heights driveways it’s usually one of two things: a seized hinge from years of salt air exposure, or a corroded rack and pinion drive on a slide gate. Either way, the motor is pulling more amps than it’s rated for, and if you keep running it, you’ll burn the motor out. Stop using the gate and call (669) 666-6859. We’ll diagnose it the same day.
Yes. We regularly field-fabricate replacement parts for slide gates whose manufacturers went out of business decades ago. In the hills off Farm Hill Boulevard, it’s common to find ornate iron gates from the 1960s that have never been updated. The original hinge brackets, rack sections, and motor mounts aren’t on a shelf anywhere. Our techs machine replacements on-site or in our shop. If your slide gate is binding and the brand is long gone, we can still fix it. Call (669) 666-6859 for an exact quote.
Written by Nico Alvarez, Owner at Calder Gate Repair San Jose, serving Redwood City with gate repair since 2009.