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.
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AfterFast, Reliable Gate Repair Across Fairfax
Most gate repairs in Fairfax come down to one of three things: a hinge post that’s shifted in clay soil, an operator that’s fighting a misaligned gate, or a safety sensor that won’t stop false-tripping. We fix all three and everything else that keeps your gate from opening and closing the way it should. Calder Gate Repair is the dedicated gate division inside the Relay Home Co. family, and our crews know Fairfax’s hillside lots, redwood-shaded driveways, and older automatic systems better than any out-of-town dispatcher could. Call (903) 417-0793 and a live person answers, 24/7, with a real arrival time you can track.
Why Calder Gate Repair Is Fairfax’s Preferred Gate Repair Company
Fairfax homes run on tight lots, steep driveways, and gates that put in real work every single day. That means when a gate fails, it fails at the worst possible moment: leaving for work, pulling in late, or right as the rain starts. Our techs are background-checked, uniformed, and familiar with the neighborhoods off Sir Francis Drake Boulevard, Bolinas Road, and the Deer Park corridor. We don’t send a vague four-hour window. You get a live, trackable arrival time and a written price before any work starts.
What sets us apart in Fairfax isn’t marketing language. It’s the 365-Day Done Right Promise, named on every invoice. If a repair fails within 365 days, Calder returns at no charge. That’s a free second visit, in writing, on every job. Nico Alvarez leads the Fairfax-dispatch team, and he’s built our local reputation on showing up when we say we will and charging exactly what we quoted. Part of Relay Home Co., established 2009, each location independently owned and operated under The Relay Visibility Guarantee.
For Fairfax homeowners, that means one phone call gets you a real human, a real schedule, and a real price. Not a chatbot. Not a callback tomorrow. That’s the standard we hold for every Gate Repair job we take in Marin.
Gate Welding in Fairfax
Gate welding in Fairfax is often the difference between nursing an old gate along for another few years and replacing the whole thing outright. On hillside properties around Deer Park and Cascade Canyon, steel gates take a beating from seasonal ground movement. Hinge welds crack, frame corners fatigue, and rust creeps into joints where redwood debris holds moisture against the metal. We weld on-site when the job calls for it: cracked hinge plates, snapped pickets, sagging frame corners, and rust-through sections on driveway gates.
Hinge and Frame Repairs
A cracked hinge weld on a heavy swing gate isn’t cosmetic. Every open-close cycle flexes that crack a little wider until the gate drops far enough to drag. We grind out the failed weld, re-weld with proper penetration, and often add a gusset plate so the same stress point doesn’t fail again in the next wet season.
Typical Fairfax hinge weld repairs run $180 – $420 per hinge depending on gate weight and access. Frame corner repairs on steel driveway gates run $260 – $600. You’ll get a written price before we strike an arc, not after.
Rust Repair and Reinforcement
Fairfax’s damp, shaded lots mean steel gates rust faster here than on sunnier, drier sides of the county. When rust has thinned a bottom rail or eaten through a picket, we cut out the bad section, weld in new steel, and treat the area so it doesn’t come back through the next two winters. In some cases we recommend replacing a section of the frame rather than patching it, especially where the gate supports an operator arm.
Rust section repair usually runs $200 – $480 in Fairfax. Full gate reinforcement and straightening typically lands between $400 and $900 depending on gate size. We’ll tell you honestly if a gate is past saving, because welding new steel onto a frame that’s rusted through in three places is a waste of your money.
Commercial Gate Repair in Fairfax
Commercial gate repair in Fairfax has to account for heavier cycles, bigger operators, and the fact that a down gate can block deliveries, tenants, or customers. We service commercial slide gates, swing gates, and barrier arm systems at apartment buildings, business lots, and shared driveways throughout Fairfax. The work includes operator repair and replacement, safety loop and photocell diagnostics, track and roller service, and welding repairs on heavy steel gates that see hundreds of open-close cycles a day.
Slide Gate Track and Roller Service
Commercial slide gates in Fairfax pick up a lot of debris: redwood needles, gravel from eroding hillsides, and clay dust that turns to paste in the rain. That grit packs into the rack and pinion, skips teeth, and burns out motors that work harder than they should. We clean and re-align the rack, replace worn nylon or steel rollers, and set the torque so the operator isn’t fighting the gate. Commercial slide gate service in Fairfax typically runs $300 – $800 depending on gate length and drive condition.
Operator Replacement and Safety Systems
When a commercial operator is beyond repair, we quote a replacement at a fixed price before ordering anything. We’re factory-familiar with Linear, Viking, Ghost Controls, and DoorKing, among others, and we stock common parts locally so Fairfax businesses aren’t waiting on a shipped control board for a week. Most commercial operator replacements in Fairfax run $1,200 – $3,400 installed, depending on gate type, brand, and whether safety edge and loop work is included. Every commercial job includes a written price first and the 365-Day Done Right Promise in writing.
Trusted Brands We Service in Fairfax
Calder Gate Repair techs train on nine major opener brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. For Fairfax customers, that means we aren’t learning your Linear swing arm or your DoorKing slide operator from a YouTube video while standing in your driveway. We keep common control boards, remotes, safety photocells, and limit switches stocked locally so most Fairfax repairs are done in one visit, not one visit plus a week of waiting for a part. If you’ve got a Viking or Ghost Controls system that’s been installed for ten years and just started faulting, we can diagnose it on the spot and usually quote the fix before we leave.
Common Gate Repair Problems We See in Fairfax Homes
- Clay-soil hinge post settling after heavy rains. Fairfax’s hillside lots along the Deer Park corridor sit on clay-heavy soils that swell and shift every wet season. When a hinge post loses plumb, the gate drags, the operator strains, and eventually the system faults mid-travel. The fix is almost always at the post base, not the motor.
- Rack and pinion drives packed with redwood needles and grit. Slide gates on wooded Fairfax properties collect debris that binds the drive and wears teeth. Regular rack cleaning and re-alignment keeps the operator from working itself to death.
- Older loop detectors and photocells false-tripping in wet weather. Many older Fairfax homes have safety systems that were never properly grounded. When the ground saturates, the gate shuts down or refuses to close without holding the button. We re-ground and re-seal these systems so rain stops ruining your day.
- Sagging swing gates that keep dropping even after tightening. Tightening hinges on a gate whose post has moved buys you weeks, not years. The post base is the real issue, and Fairfax’s clay soil makes it the most common call we run in this area.
Pricing for Gate Repair in Fairfax, CA
Here are straight numbers for Fairfax, not a vague “it depends” with no ranges. Basic hinge post resetting on a swing gate runs $350 – $750. Operator repair, including diagnostics and most common parts, runs $280 – $650. Safety photocell or loop detector replacement runs $220 – $480. Full gate welding repairs run $180 – $900 depending on scope. Commercial operator replacement runs $1,200 – $3,400 installed. Every price above is quoted in writing before any work starts, and the invoice matches the quote. Call (903) 417-0793 for a free estimate on your specific gate. No trip charge to Fairfax for quoted repairs.
The biggest factor in Fairfax pricing is usually the footing, not the gate or the opener. If a post has shifted in clay soil, resetting it properly means digging out the old base, setting a deeper footing on gravel, and letting it cure before re-hanging the gate. That’s real labor, and it costs more than a hinge swap. But skipping it means the gate sags again next winter. We’d rather tell you that up front.
We Also Serve Cities Near Fairfax
Calder Gate Repair handles Gate Repair in Fairfax and the surrounding Marin communities every week. We run calls to San Anselmo, Kentfield, San Rafael, and Larkspur with the same live arrival tracking, written pricing, and 365-Day Done Right Promise. If your gate is down in any of these areas, call (903) 417-0793 and we’ll put you on the schedule.
Serving Fairfax, CA - Our Local Coverage Area
We’re based in the Fairfax 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 Fairfax
Because the hinge post, not the hinge, is almost always the real problem. Fairfax’s clay-heavy soils expand and contract with the rainy season, and posts on sloped lots slowly lean out of plumb. Tightening hinges against a moving post doesn’t fix the angle, so the gate sags again within weeks. The permanent fix is resetting the post on a deeper, properly drained footing, then re-hanging the gate. That job in Fairfax runs $350 – $750. Call (903) 417-0793 and we’ll tell you if your post is the culprit or if the hinges themselves are worn.
It’s usually the gate, and the motor is just doing what it’s told. When a Fairfax gate operator faults mid-travel, the most common causes we find are a hinge post that’s shifted in clay soil, debris binding a rack and pinion drive, or a safety sensor that’s false-tripping. The operator’s internal force detection shuts it down to prevent damage. We test the gate’s full travel first, check the drive and safety edges, and only then decide whether the operator needs repair. Operator diagnostics in Fairfax run $95, applied toward any repair we quote. Call for a free estimate at (903) 417-0793.
A proper installation includes the gate and operator, plus the groundworks, power run, safety edges, and reversal testing that make it function safely. In Fairfax, that means footings dug deep enough to stay stable through wet-season clay expansion, conduit for the power run, and photocells or edge sensors installed and tested so the gate reverses on contact. We quote a fixed price before any work starts and schedule the job, because installation is measured, ordered, and planned work. Expect $3,500 – $9,000 for most Fairfax residential automatic gate installations depending on gate material, length, and terrain. Call (903) 417-0793 for a free measure and written quote.
Yes, and they’re not optional even if your gate was installed before current safety standards. Photocells detect an obstacle in the gate’s path, and edge sensors feel contact and tell the operator to reverse. On older Fairfax properties, we often find these systems never properly grounded, which is why they false-trip in wet weather. We re-ground and re-seal them, and we test reversal on every repair and installation. If your gate is missing or has a disabled safety system, call (903) 417-0793 and we’ll quote the retrofit in writing.
Yes. Calder Gate Repair techs are factory-familiar with all four, plus Linear, Viking, Ghost Controls, Elite, and Mighty Mule. We carry common control boards, remotes, and limit switches for these brands locally, so most Fairfax operator repairs are completed in one visit. DoorKing and BFT parts are usually on our truck or available same-day from our Bay Area stock. Call (903) 417-0793 with your brand and symptom, and we’ll give you a straight answer and a written price.
Written by Nico Alvarez, Owner at Calder Gate Repair, part of the Relay Home Co. family.