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 Gate Repair Across San Carlos
Gate repair in San Carlos comes down to one thing: a gate that opens when you pull up and closes securely behind you. Most San Carlos homeowners call us when the opener is grinding, a hinge post has shifted on a slope, or a wood gate has dropped and is scraping the driveway. We fix all of it. Calder Gate Repair dispatches background-checked, uniformed technicians to San Carlos from our San Francisco Bay Area office, with a live, trackable arrival time instead of a vague four-hour window. Call (903) 417-0793 and a real person answers, 24/7.

Nobody in San Carlos wants to sit at the bottom of Crestview Drive waiting for a gate that won’t budge. Whether it’s a tired LiftMaster arm or a twisted hinge on a wood swing gate, we’ll diagnose it in plain language and hand you a written price before any work starts. That number doesn’t change at the door.
Why Calder Gate Repair Is San Carlos’s Preferred Gate Repair Company
We’re the dedicated Gate Repair specialist inside the Relay Home Co. family, founded in 2009, and each location is independently owned and operated. For San Carlos homeowners, that means a local crew that understands hillside drives, canyon-edge drainage, and what those conditions do to gate hardware over time. Our technicians are factory-familiar with Viking, Ghost Controls, DoorKing, and Elite openers, plus the other major brands you likely have mounted on the post.
Every San Carlos job comes with the 365-Day Done Right Promise: if the repair fails within 365 days, we return at no charge. Not a pro-rated credit. Not a “we’ll take a look” promise. A free second visit, stated in writing on every repair. Add to that a written guarantee and a written price before any work begins, and you know exactly what you’re getting. San Carlos customers tell us the thing they appreciate most is the live arrival time they can track on their phone, the same way they track a rideshare.
Nico Alvarez leads our gate repair team. He’s the one who answers when you have a question about why your gate reversed mid-cycle or whether that creak is a hinge or a post issue. This page is written by him, not by a marketing department.
Metal Gate Repair in San Carlos
Metal Gate Repair in San Carlos usually means one of two things: a steel or aluminum gate that’s sagging or binding, or the operator attached to it. On the sloped driveways off streets like Crestview and Melendy, the gate panel itself rarely bends first. What actually happens is the hinge post footing shifts under repeated load, and the whole panel tilts until it drags on the apron. The fix isn’t a quick weld on the panel. It’s digging out the post, re-setting it with a deeper footing, and then realigning the gate so it swings true.
Hinge and Post Reset on Sloped Drives
A San Carlos gate on a grade puts constant lateral pressure on the post. Over a year or two, that pressure compacts the soil on the downhill side and the post leans. We dig, re-pour, and re-set the post to a depth suited to the slope, not the flat-lot standard. Then we replace the hinge hardware. A panel-only fix on a shifted post fails again within months.
Weld and Corrosion Repair Near the Bay
Moisture from the Bay and winter rain accelerates rust at weld points and where powder coating has been scratched. We grind, weld, and re-seal rusted joints before they compromise the frame. Most weld and rust repairs in San Carlos run $180 – $420 depending on how many joints are involved. A full gate realignment typically runs $220 – $480.
Wood Gate Repair in San Carlos
Wood Gate Repair in San Carlos is a different animal than metal work. Redwood and cedar gates are common here, and they move with the seasons. A wood gate that swung fine in August will swell or sag after the winter rains saturate the ground around the post footings. The most common call we get is a dropped gate: the latch no longer lines up, the gate drags on the concrete, and the opener starts tripping its internal overload because it’s working twice as hard.
Sag Correction and Reinforcement
On a driveway off Crestview Drive, a homeowner’s wood swing gate had dropped and was dragging on the concrete apron. We dug out the hinge post, re-poured the footing deeper than the original, replaced the twisted hinge hardware, corrected the sag, and re-tuned the LiftMaster arm. Then we re-aimed the safety photocell so the gate reversed cleanly on obstruction before we handed it back. That’s the full job. Sag correction on a wood gate in San Carlos generally runs $180 – $380 before any new hardware.

Lock, Latch, and Strike Plate Alignment
When a wood gate drops even a quarter inch, the latch misses the strike plate. Sometimes the fix is a realignment and new latch hardware. Other times the post itself has shifted and needs a footing repair first. We don’t just swap a latch onto a shifted post and call it done. The post is the foundation, and San Carlos slopes are hard on foundations.
Trusted Brands We Service in San Carlos
We’re factory-familiar with the opener brands San Carlos homeowners actually have bolted to their posts. That includes Viking, Ghost Controls, DoorKing, and Elite, alongside LiftMaster, FAAC, BFT, Linear, and Mighty Mule. We stock common replacement parts for these brands in our Bay Area service area, which means less waiting on a shipped part and a faster turnaround for San Carlos repairs. If your Ghost Controls opener is throwing a fault code or your DoorKing keypad won’t release the gate, we’ll pull up the right diagnostic path and fix it on the spot when the part is on the truck.
Common Gate Repair Problems We See in San Carlos Homes
- Sagging gates from shifted post footings: San Carlos lots along the canyon edges and hillside streets are notoriously sloped, so most residential gates here need deeper, engineered post footings than the flat-lot standard. A gate that works fine on level ground in a neighboring city can sag or bind within a season on a San Carlos grade.
- Operators tripping internal overloads: When a gate sags or drags, the opener strains to move it. That strain trips the internal overload, and the gate stops mid-cycle. Fixing the sag almost always fixes the operator fault.
- Safety photocell failures leaving the gate stuck: Older driveways here often combine a gate operator with an aging loop detector or keypad entry, so a single failed safety photocell leaves the whole automated entry stuck. We test the full safety circuit, not just the obvious part.
- Winter rain saturating post footings: Hillside drainage softens the ground around gate posts, throwing swing gate operators out of level. A gate that shifted during a wet winter often needs a footing re-pour, not just a hardware tweak.
Pricing for Gate Repair in San Carlos, CA
We give San Carlos homeowners real numbers before they commit to anything. Most gate opener repairs run $180 – $360 before parts. A hinge or post repair on a sloped driveway typically runs $240 – $520 depending on how much footing work the slope demands. Full wood gate sag correction runs $180 – $380. Weld and rust repair runs $180 – $420. A complete new gate installation, including groundworks, power, safety edges, and reversal testing, usually falls between $2,400 – $6,800 depending on the gate size and site conditions. We don’t promise same-day turnaround on an installation; that work is measured, ordered, and scheduled. Every estimate is free, and the price you agree to is the price on the invoice.
We Also Serve Cities Near San Carlos
Calder Gate Repair serves San Carlos and the surrounding Peninsula cities including San Carlos, Belmont, Redwood City, Atherton, and Menlo Park. If your gate is acting up and you’re just over the city line, call us at (903) 417-0793 and we’ll tell you straight whether we can get to you today or schedule the next available slot.
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 Gate Repair in San Carlos
On a sloped San Carlos lot, the post is almost always the root cause. The soil on the downhill side compresses under load, the post leans, and the gate panel follows. If you only fix the panel or swap hinges on a shifted post, the problem returns within months. We check the post footing first, correct it if needed, then realign the gate. Call (903) 417-0793 and we’ll diagnose it over the phone, then confirm on site with a written price.
Yes. Automatic gate openers installed in San Carlos must comply with UL 325 safety standards, which require entrapment protection, typically a safety photocell beam or a reversing edge, plus proper reversal testing after any repair. We test the full safety circuit on every automatic gate repair, not just the part that failed. If your gate isn’t reversing on obstruction, that’s a safety issue and a legal one. We fix it before we leave.
Sometimes, but not always. That slope we keep mentioning is why so many drives here use a swing gate operator with a reinforced hinge post rather than a lighter slide gate setup. A slide gate needs a relatively level run along the fence line, which many canyon-edge lots don’t have. Solar gate openers are a good fit for San Carlos gates that are far from a power source, and we’ve installed them with Ghost Controls and Mighty Mule hardware. Call (903) 417-0793 for an on-site look and a written price.
We service nine major opener brands including Viking, Ghost Controls, DoorKing, Elite, LiftMaster, FAAC, BFT, Linear, and Mighty Mule. If your operator doesn’t show up in that list, we’ll still take a look and tell you honestly whether it’s worth repairing or replacing. Our techs are factory-familiar with these systems, which means faster diagnostics and fewer guesswork repairs.
Most repairs, including hinge replacement, sag correction, and operator tuning, are completed in a single visit of 2 to 4 hours. A full new gate installation, including deeper post footings for a sloped San Carlos lot, groundworks, power, and safety-edge installation, typically takes 2 to 5 days depending on scope and concrete cure time. We’ll give you a realistic schedule in writing before any work begins. Call (903) 417-0793 for a free estimate on any gate repair in San Carlos.
Written by Nico Alvarez, Owner at Calder Gate Repair, serving San Carlos and the surrounding Peninsula from our San Francisco Bay Area office.





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