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 San Carlos
An electric gate that won’t open isn’t just a hassle. In San Carlos, it’s a car stuck in the driveway at 7 a.m. with a meeting in Redwood City at 8. Most gate failures we see in San Carlos come down to three things: water in a keypad or photocell, a sagging hinge post, or an operator that’s been fighting the load too long. Calder Gate Repair sends background-checked, uniformed technicians to San Carlos with a live, trackable arrival time – not a four-hour window. Call (903) 417-0793 and a real person answers, 24/7.

Why Calder Gate Repair Is San Carlos’s Preferred Electric Gate Repair Company
San Carlos homeowners call us because we speak the local trade language: marine-layer fog, sloped driveways, tight side yards where gate operators get wedged between fences and retaining walls. We’re the dedicated gate repair specialist inside the Relay Home Co. family, established 2009, and every job carries three guarantees stated in writing: 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.
Our technicians are background-checked and arrive in uniform with a live arrival time you can track from your phone. We’re factory-familiar with nine major opener brands, including Linear, Viking, Ghost Controls, and DoorKing. That matters because parts availability in San Carlos is tight – most supply houses are up the Peninsula or across the Bay. We stock common boards, limit switches, and photocells so most repairs finish in one visit.
Nico Alvarez leads our gate repair team with a straight-talking approach: if it’s broken, we tell you what it costs and how long it takes before we touch a bolt. The number on the invoice is the number agreed to at the door.
Electric Gate Motor in San Carlos
An Electric Gate Motor replacement in San Carlos usually means a swing gate operator that’s been overworked by a heavy gate on a sloped driveway, or a slide gate motor that’s bound and tripping its overload. The motor itself is rarely the first thing to fail – the real culprit is usually a hinge post that’s rotted at the footing, a bad capacitor, or a control board that took a voltage spike. A typical motor swap runs $650 to $1,100 here, including removal, new operator, limit and force adjustments, and a full safety reversal test. Parts are an additional line item, quoted before work starts.
If you’re near Brittan Heights or the hills west of Alameda de las Pulgas, your gate likely carries more load than a flat-lot gate in the flats near Holly Street. We size the operator to the gate’s actual weight and travel arc, not just the label on the old motor.
Signs Your Operator Is Dying, Not the Gate
Motor hums but the gate doesn’t move, or it opens halfway and reverses for no obvious reason. That’s usually capacitor or limit-switch failure – the limit switch is the small sensor that tells the gate when to stop. If the motor runs fine but the gate panel sags, that’s structural, not electrical.
What a Motor Replacement Includes
We remove the old operator, set the new one, wire it to your existing control board (or replace the board if needed), set open and close limits, adjust force, and test the entrapment reversal with a physical obstruction. Then we walk the gate through three full cycles with you watching.
Gate Access Control in San Carlos
Gate Access Control in San Carlos covers how the gate knows it’s you – keypads, remotes, intercoms, and loop detectors. In San Carlos, fog-driven corrosion on keypad terminals and photocell housings is the top call we get between June and October. The symptom is classic: the gate opens fine from the remote but the keypad does nothing, or the gate reverses mid-travel because the safety photocell reads a false obstruction. Basic keypad replacement runs $180 to $320. A new loop detector with sensor installation typically costs $400 to $800 depending on whether we’re saw-cutting the driveway or retrofitting a free-exit wand.
Keypads and Remotes on Fog-Exposed Gates
Marine-layer fog condenses inside keypad housings and rots the terminal screws over two or three seasons. We seal new keypads with dielectric grease on every terminal and weather-gasket the housing. Matching a new remote to an older Linear or DoorKing receiver is usually a five-minute job once we know the board revision.
Intercom and Phone-Entry Upgrades
Lots in San Carlos are tight, and many driveways are too narrow for a vehicle loop on both sides. We often recommend a phone-entry or IP intercom instead of a second loop detector. Pricing for an intercom system starts around $900 installed, and we run the wiring through the same chase as the operator power so you don’t end up with conduit stapled across a stucco wall.

Trusted Brands We Service in San Carlos
We’re factory-familiar with Linear, Viking, Ghost Controls, DoorKing, LiftMaster, FAAC, BFT, Elite, and Mighty Mule. For San Carlos customers, that means we can usually troubleshoot and repair your existing operator the same visit rather than telling you the board is obsolete and pushing a whole new system. We stock common Linear and Ghost Controls boards and limit switches on our trucks, and DoorKing and Viking parts are available from our Electric Gate Repair parts inventory with one-day turnaround. If we have to order a part, we tell you the exact lead time before you pay for anything.
Common Electric Gate Repair Problems We See in San Carlos Homes
- Keypad dead or intermittent during fog. Marine-layer moisture wicks into the keypad housing and corrodes the terminals. We see this constantly from Brittan Heights down to the flats. The fix is usually a sealed replacement keypad with greased terminals, not a new operator.
- Gate sags and the motor strains. Sloped driveways along streets like Cedar Street and Crestview Drive put constant load on the hinge post. When the post rots at the footing, the gate drops, the motor pulls more amps, and the overload trips. We reset the post in concrete and re-level the gate before replacing any electrical component.
- Slide gate binds after rain. Older rack-and-pinion slide gates bind when winter rain swells the soil and shifts the track. The operator faults on overload and the homeowner thinks the motor is dead. It usually isn’t – it needs the track re-leveled and the rack re-shimmed.
- Safety photocell phantom reversal. Fog and wet leaf litter in front of the photocell lens read as an obstruction, and the gate reverses mid-travel. Cleaning the lens is a 30-second fix, but if corrosion has reached the terminal block we replace the photocell and re-seal the housing with a weather gasket.
Pricing for Electric Gate Repair in San Carlos, CA
Here’s what San Carlos homeowners can expect to pay. A service call and diagnosis runs $89, and that fee is credited toward the repair if you approve the work the same visit. Keypad replacement: $180 to $320. Photocell replacement: $140 to $260. Control board replacement: $350 to $700, depending on brand – Viking and DoorKing boards sit at the higher end. Full operator replacement: $650 to $1,100 for the motor and installation, plus parts if the control board or receiver also needs replacing. Loop detector installation: $400 to $800. Every quote is written and itemized before any work starts, and the price we quote is the price you pay on the invoice.
For an exact quote on your gate, call (903) 417-0793. Estimates are free, and a live person answers.
We Also Serve Cities Near San Carlos
Our Electric Gate Repair in San Carlos team also covers homeowners in Belmont, Redwood City, Atherton, and Menlo Park. If your gate is down and you’re on the border near Alameda de las Pulgas or El Camino Real, call us – San Carlos is our home turf, but we’re on the road across the mid-Peninsula daily. Dispatch and scheduling are coordinated from the brand’s San Francisco Bay Area office, with crews serving San Carlos locally.
Serving San Carlos, CA - Our Local Coverage Area
We’re based in the San Carlos 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 San Carlos
Fog condenses on the safety photocell lens and the gate reads it as an obstruction, or moisture has already corroded the photocell terminals and the signal is dropping out. We replace corroded photocells and seal the new housing with a weather gasket. Call (903) 417-0793 for a same-week appointment – we diagnose it in about twenty minutes.
In San Carlos, it’s almost always the hinge post. Sloped driveways and moist soil rot the post at the footing, the gate drops, and the operator strains against the misalignment. We reset the post in concrete, re-level the gate, and only then check whether the motor survived. That sequence saves San Carlos homeowners from buying a $900 operator they didn’t need.
Yes, we install complete electric gate systems in San Carlos. A proper install includes the gate fabrication or order, post footings, concrete cure time, operator mounting, power run, safety edges, photocells, and full reversal testing. On a San Carlos lot with a sloped driveway, plan for three to five working days total spread across concrete cure time. We provide a free measure and a written itemized price before any work begins.
We service Linear, Viking, Ghost Controls, DoorKing, LiftMaster, FAAC, BFT, Elite, and Mighty Mule. Most San Carlos homes have Linear, LiftMaster, or DoorKing operators, and we keep common parts for those brands stocked locally. If you have a Viking or Ghost Controls board, we can usually source it in one day through our parts network.
California follows the UL 325 safety standard, which requires entrapment protection on all electric gates: photocells, safety edges, or both, plus a reversing mechanism. If your San Carlos gate was installed before current standards or the photocells are corroded and bypassed, you have a real safety and liability issue. We test every safety device on every job and bring non-compliant gates up to code before we call the repair complete.
If your electric gate is down or acting up anywhere in San Carlos, call Calder Gate Repair at (903) 417-0793. A live person answers 24/7, we’ll give you a written price before any work starts, and every repair is backed by the 365-Day Done Right Promise: if it fails within a year, we come back free.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving San Carlos with honest gate repair pricing and written guarantees on every job.





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