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.
Trusted Gate Parts & Welding for San Mateo Homeowners
Gate parts and welding in San Mateo typically costs $180-$890 depending on whether you need a single hinge replaced or a full post re-welded, and most repairs are completed in one visit. Vance Gate Repair San Mateo has repaired and installed over 22,000 gates since 2014, and every job starts with a written price before any work begins. If your gate is sagging, grinding, or won’t latch properly in San Mateo, call us at (650) 293-9440 - a live person answers 24 hours a day, and we dispatch background-checked, uniformed technicians with a name and photo provided before arrival.
San Mateo’s coastal climate puts unique stress on gate hardware. The salt air coming off San Francisco Bay accelerates corrosion on hinges and latches, while the clay-heavy soils in neighborhoods like Baywood-Aragon and the hillside lots near Sugarloaf Mountain cause posts to shift and gates to bind. We’ve documented these patterns across thousands of San Mateo service calls, and we stock the parts that fail most often in this specific environment. Whether you have a Viking swing-gate operator in Hillsborough or Gate Parts & Welding in Belmont, we carry the hardware to fix the mechanical problem without steering you toward a full replacement.
Our home page outlines our full range of gate services, but this page focuses specifically on the structural and mechanical repairs that keep your gate operating safely.
What Our Gate Parts & Welding Service Includes
Hinge Replacement
A gate hinge is the pivot point that carries the entire weight of your gate every time it opens or closes. In San Mateo, we see hinge failure most often on coastal-facing properties where salt corrosion eats through galvanized steel, and on older estate gates in neighborhoods like Aragon where original brass hinges have simply worn through decades of use. When we replace hinges, we match the load rating to the gate weight - a common mistake we find is undersized hinges rated for 200 pounds on a 400-pound gate - and we photograph the new hinge placement and fastener torque before we leave. Under Clause 4 of The Haven Standard, you receive that photo record with the written invoice.

Post Replacement
The post is what everything else attaches to, and when it leans, the gate leans with it. San Mateo’s hillside topography in areas like the western slopes near Crystal Springs Road creates drainage patterns that undermine post footings, while the expansion-contraction cycle of our clay soils slowly loosens even properly set posts. We excavate to below the frost line - not a concern in San Mateo, but the depth ensures stability in saturated soil - and we set replacement posts in concrete with a slight crown to shed water. For wrought-iron or steel posts, we fabricate custom base plates when the original manufacturer is no longer in business, a common situation on gates installed before 2000.

Rail Repair
Rails are the horizontal or diagonal members that keep a gate square and prevent sag. We see rail separation most often on wooden driveway gates in San Mateo’s older neighborhoods, where moisture cycling has loosened mortise-and-tenon joints or rusted through the fasteners. For metal gates, we cut out the damaged section and weld in our Gate Parts & Welding in Burlingame replacement steel of matching gauge, then grind and prime the repair. We document the weld penetration with photos, because a rail repair that looks good on the surface but lacks proper fusion will fail again within months. This is the kind of detail that separates a lasting repair from a callback.

Custom Welding
Not every gate problem has an off-the-shelf solution. We’ve fabricated custom latch receivers for odd-angle installations in San Mateo’s hillside homes, extended gate frames to accommodate new intercom hardware, and repaired aluminum gates where standard steel welding would cause galvanic corrosion. Our welding includes MIG and TIG processes depending on the base metal, and we match filler material to the original specification rather than using whatever rod is handy. For decorative wrought iron, we color-match the patina so the repair doesn’t announce itself.

Gate Rollers
Sliding gates depend on rollers that carry hundreds of pounds across a track, often in San Mateo’s coastal conditions where grit and salt combine to accelerate bearing wear. We stock V-groove and flat-profile rollers for the common track geometries, and we measure track width and roller diameter to ensure proper clearance - too tight and the roller binds, too loose and the gate shimmies. For cantilever gates, we inspect the four-carriage roller assemblies as a set, because replacing one worn roller while leaving three aged ones in place creates uneven load distribution that fails prematurely.

Latch & Lock
The latch is the interface between your gate and your security. We replace failed magnetic latches, repair striker misalignment caused by settling posts, and install new lock hardware when the original mechanism is no longer serviceable. In San Mateo, we frequently upgrade older manual latches to electric strike releases integrated with existing access control systems - a common request for properties adding intercoms or keypad entry. We test the latch operation across the full temperature range, because a mechanism that works at 70 degrees can bind at 40 degrees when metal contracts.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Gate Parts & Welding

We’ve serviced hundreds of Viking operators across San Mateo County and stock their OEM hinge kits and arm brackets. Viking’s residential swing-gate systems are common in the mid-century homes near San Mateo Park, and we know the specific wear pattern on their V-series hinge pivots - the brass bushing erodes first, then the steel pin gallops. We carry the bushing stock to rebuild rather than replace when the housing is still sound.
DoorKing systems appear frequently on multi-family and commercial properties along El Camino Real and in the Bay Meadows area. Their 1600 series slide-gate operators use a specific roller carriage geometry that we’ve learned to repair rather than replace, saving property managers significant cost. Elite and Ghost Controls round out the brands we see most often on residential installations in San Mateo - Elite for their robust commercial-grade swing arms, Ghost Controls for their DIY-friendly systems that homeowners often install themselves and then need professional adjustment on. Whether you have one of these makes or any other system, we can source or fabricate the mechanical parts your gate needs.
Before
AfterSigns You Need Gate Parts & Welding Right Now
- The gate drags or scrapes the ground. This usually means a hinge has elongated or a post has shifted. In San Mateo, we see this after winter storms saturate hillside soils and cause posts to tilt. Continuing to operate the gate in this condition stresses the operator motor and can strip gears in automatic systems.
- You hear grinding or squealing when the gate moves. Metal-on-metal noise indicates a failed bearing, missing roller, or hinge pin that has lost its bushing. The noise is the symptom; the underlying damage is often a scored shaft or elongated hole that becomes more expensive to repair the longer it runs dry.
- The gate won’t latch without lifting or shoving. A latch that requires body english means either the striker and catch have misaligned or the gate frame has twisted. In coastal San Mateo, we’ve traced this to corrosion-swollen hinges that no longer pivot freely, causing the gate to hang at an angle.
- You see cracks in welds or separated joints. Fatigue cracks propagate. A small crack at a rail-to-stile joint today becomes a complete separation under wind load or operator force. We grind out and re-weld cracks with proper penetration, then add gusset plates on high-stress joints where the original design proved insufficient.
- The sliding gate jumps the track or binds in one spot. This points to worn or seized rollers, or track deformation from vehicle impact. On the commercial properties we service near Highway 92, delivery trucks occasionally clip gate tracks. We straighten minor deformation and replace sections when the damage is too severe to restore smooth roller travel.
Our Gate Parts & Welding Process - Step by Step

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On-site diagnosis with documentation. We arrive with a calibrated torque wrench, digital level, and borescope for inspecting internal hinge wear. We photograph the gate in its failed state, measure clearances with feeler gauges, and identify the root cause - not just the symptom. You get a copy of these findings before we proceed.
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Written scope and price, no exceptions. Under Haven Standard Clause 1, we deliver a written estimate that lists every part, every labor operation, and the flat total. If we discover additional damage during disassembly, we stop, document, and present a revised scope - never a surprise addition to the final invoice.
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Fabrication or parts procurement. For standard items, our San Mateo service vehicle carries common hinges, rollers, and latch hardware. For custom welding or obsolete parts, we fabricate in our shop and schedule return installation, typically within 48 hours. We never leave a gate unsecured overnight.
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Installation with torque and alignment verification. We install to specification - hinge bolts torqued to manufacturer values, posts plumbed within 1/8 inch per foot, welds tested with dye penetrant on critical structural repairs. We photograph every fastener, every weld, every adjustment for the job record.
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Operational testing and photo record delivery. We cycle the gate through its full travel, test the latch at multiple temperatures if possible, and verify that automatic operators recognize the new mechanical limits. Before we leave, you receive a photo log of every adjustment and a written record of the part numbers installed, filed under your address in our system for future reference.
How Much Does Gate Parts & Welding Cost in San Mateo?
Gate Parts & Welding in San Mateo typically runs $180-$340 for a single residential gate, depending on whether we’re replacing a standard barrel hinge or a heavy-duty ball-bearing pivot. Post replacement ranges from $650-$890 for a standard 4×4 or 6×6 post set in concrete, with hillside installations requiring deeper excavation or retaining work at the higher end. Rail repair and custom welding fall between $280-$560, varying with the length of weld needed and whether we must match decorative profiles. Gate roller replacement on sliding systems typically costs $220-$420 per roller assembly, and latch or lock hardware replacement runs $150-$380 depending on mechanical complexity and access control integration.
Several factors move these prices. Material matters - stainless steel hardware for coastal San Mateo properties costs more than galvanized but lasts significantly longer in salt air. Accessibility affects labor time; a post replacement on a steep Hillsborough hillside takes longer than the same job on flat ground in San Mateo. And the condition of adjacent components matters - a hinge replacement on a gate with a already-twisted frame requires additional straightening work.
To avoid overpaying, get any competitor’s estimate in writing and bring it to us. We offer a free second opinion on any written estimate from another company - we’ll review their scope against what we find and tell you where the differences are. Our estimates are free, with no obligation, and the price we write is the price you pay. We never charge diagnostic fees that get applied only if you decline the work.
Our Gate Parts & Welding in Hillsborough page covers pricing for that specific market, where hillside conditions and estate-scale gates shift the typical ranges upward.
Gate Parts & Welding Near San Mateo - Our Service Area

We dispatch from San Mateo to the full peninsula corridor and across to the East Bay. Typical response times are same-day for San Mateo, Hillsborough, and Belmont; next-day for Burlingame, San Carlos, Redwood City, Atherton, and Menlo Park; and scheduled within 48 hours for Palo Alto, Hayward, San Leandro, and Alameda. We don’t charge travel fees within this radius - the price we quote covers the complete job. Our Gate Parts & Welding in Belmont page details service specifics for that community, where the canyon terrain creates unique gate stress patterns we account for in our diagnostics.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Gate Parts & Welding in San Mateo

Gate parts and welding covers the structural and mechanical repairs that keep a gate operating safely - hinge and post replacement, rail repair, custom metal fabrication, roller service, and latch or lock hardware. At Vance Gate Repair San Mateo, this service includes diagnosis, written pricing, installation, and a documented photo record of everything we found and everything we fixed.
Most single-component repairs - a hinge replacement, latch adjustment, or roller swap - take 1-2 hours on site. Post replacement or extensive rail welding typically requires 3-5 hours, and custom fabrication jobs need a return visit after shop work, usually within 48 hours. We schedule realistically and don’t promise same-day completion for work that requires measured fabrication or concrete curing.
Hinge replacement runs $180-$340, post replacement $650-$890, rail repair and custom welding $280-$560, gate roller replacement $220-$420 per assembly, and latch or lock work $150-$380. The exact price depends on materials, accessibility, and whether adjacent components need attention. Call (650) 293-9440 for a free, written estimate with no obligation - estimates are free.
Yes. We’ve serviced hundreds of Viking units and carry their OEM hinge kits and arm brackets; we also work extensively with Ghost Controls on their residential swing-gate systems, particularly the alignment and mechanical adjustments that follow their DIY installations. We service nine major automation brands and don’t steer customers toward replacement when the existing system is repairable.
A live person answers our phone 24 hours a day, seven days a week, and we do dispatch for urgent situations - a gate that won’t close and leaves a property exposed, or a detached gate that poses a safety hazard. For true emergencies in San Mateo, we prioritize same-day response. For non-urgent repairs, we schedule at your convenience with a firm arrival window.
All completed work is covered by our 365-Day Done Right Promise: if the repair is not right, we make it right at no additional charge within one full year. Parts carry manufacturer warranties where applicable, and our labor warranty has no expiration date within that window and requires no argument or restocking fee to invoke. This is Haven Standard Clause 3, applied to every job.
Clear access to both sides of the gate and ensure we can reach the operator control box if the gate is automatic. If you have a written estimate from another company, have it ready - we review competitor paperwork at no cost as part of our free second opinion service. You don’t need to diagnose the problem yourself; our technician arrives with the tools and documentation habit to identify and explain what needs attention.
Schedule Your Gate Parts & Welding Service in San Mateo Today
Call (650) 293-9440 now - a live person answers, 24 hours a day. We’ll schedule your free estimate, deliver a written price before any work starts, and leave you with a documented photo record of everything we found and everything we fixed. No voicemail, no callback queue, no surprise invoice.
Written by Adrian Vance, Owner at Vance Gate Repair, serving San Mateo since 2014.





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