Fast, Reliable Gate Parts & Welding Across San Carlos
Gate parts and welding repair in San Carlos typically runs $280–$650 for most hinge, post, or rail jobs, with custom welding for hillside retrofits reaching $1,200–$2,800 due to the extra concrete and fabrication work. We’re usually on-site in San Carlos within 90 minutes from our San Jose base, and most repairs finish same day. Call (833) 848-0143 for a free estimate.

We’ve been crawling under San Carlos gates for 17 years — from the flat ranch lots near downtown to the steep cul-de-sacs climbing above Alameda de las Pulgas. Mark Thompson, our owner and lead technician, knows the difference between a standard hinge swap on a level driveway and a full hillside retrofit where the original 1950s fence posts are too spindly to carry a modern operator. That local knowledge saves San Carlos homeowners from paying twice: once for a quick fix that fails, then again for the real repair.
Why Coastal Gate Repair Service San Jose Is San Carlos’s Preferred Gate Parts & Welding Company
Our Gate Parts & Welding team has built a reputation in 94070 by solving problems general contractors walk away from. The 661 verified reviews behind our 4.8-star rating include plenty from San Carlos — property managers on Brittan Avenue, homeowners off Laurel Street, and hillside residents who found us after their “handyman special” collapsed. That volume matters: it means we’ve seen your exact gate problem before, probably on a street two blocks over.
Response time to San Carlos averages under 90 minutes during business hours. We’re familiar with the Peninsula microclimate that rolls fog through your hinges by July afternoon — and we stock the stainless and galvanized hardware that outlasts standard parts in that moisture. Mark Thompson leads every job personally, so the person quoting your weld is the same one holding the torch.
Our Gate Parts & Welding Services in San Carlos
Hinge Replacement
San Carlos’s marine fog doesn’t forgive cheap hinges. On gates within sight of the Bay — especially near the San Carlos Airport corridor — we’ve replaced hinges that seized solid after three seasons of salt-laden moisture. A standard hinge replacement in San Carlos runs $180–$320 for a residential gate, including removal of the corroded hardware and installation of galvanized or stainless alternatives. For mid-century gates with welded-in original hinges, we cut and grind the old fittings, then weld new mounting plates that accept modern bolt-on hardware. That way your next hinge swap doesn’t require a torch.
Post Replacement
This is where San Carlos’s housing stock bites back. Those 1940s–1960s ranch and split-level homes were built with 4×4 fence posts or thin-wall metal tubing never meant to carry a 200-pound automated gate. We’ve lost count of how many San Carlos homeowners called us after their new operator ripped the original post clean out of a 70-year-old concrete apron. Post replacement in San Carlos runs $450–$890 depending on depth, concrete work, and whether we need to match a hillside slope. We pour new footings with embedded weld plates, set steel or heavy-wall aluminum posts, and often reinforce with gusset brackets — because a post that flexes will eventually crack your welds.
Rail Repair & Gate Rollers
Sliding gates on San Carlos hillsides live hard. The grade change west of Alameda de las Pulgas means track rails take lateral loads they’d never see on flat ground, and gate rollers wear eccentrically — one side loaded, the other freewheeling. Rail repair runs $340–$620; roller replacement with heavy-duty sealed bearings runs $160–$280 per gate. When we replace rollers on a hillside gate, we always check rail alignment with a laser level — a ⅛-inch twist that goes unnoticed on flat ground will bind a gate on a slope every time.
Custom Welding & Hillside Retrofits
Here’s where our 17 years of single-trade focus pays off for San Carlos. On a steep cul-de-sac off Crestview Drive, we found a homeowner’s original 1950s wooden gate swinging into a grade change, binding every time. Our crew had to pour a level pad for a cantilever sliding gate, then replace the rotted fence posts that were undersized for the new LiftMaster operator. We welded custom brackets to marry the old concrete apron with the new track — a typical San Carlos hillside fix.
Custom welding and hillside retrofit work in 94070 runs $1,200–$2,800, often including coordination with a concrete contractor for the pad. We fabricate track supports, operator mounts, and transition brackets in our shop, then field-weld for final fit. No waiting on third-party metal shops. No “we’ll get back to you” when the angles don’t match the drawing.

What happens when you call
- 1
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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Carlos
We work on the brand you already have — and we stock parts for it. Our San Carlos customers run everything from legacy FAAC and BFT systems in older commercial installations to Linear and Viking operators on newer residential properties. Because Mark Thompson maintains factory-familiar working knowledge across nine major brands, we don’t outsource diagnostics or special-order simple parts. That means a Linear actuator swap or Viking control-board replacement often happens same-day, not next-week. For San Carlos homeowners with aging equipment, we also source discontinued components when possible — though we’ll tell you honestly when a 1990s operator has reached the point where parts hunting costs more than a modern replacement.
Common Gate Parts & Welding Problems We See in San Carlos Homes
- Corroded hinges and latches on mid-century gates near the Bay. The daily summer fog and salt air from the San Carlos Airport corridor seizes ferrous hardware within two to three years. We replace with galvanized or stainless fittings and sometimes add protective shrouds.
- Undersized original fence posts collapsing under modern automated gate loads. The 4×4 redwood or thin-wall steel that held a manual gate for decades shears, twists, or uproots when a 200-pound operator cycles it twice daily. Full post replacement with engineered footings is the only lasting fix.
- Standard swing gates binding on steep driveways west of Alameda de las Pulgas. The ground slope exceeds door clearance, so the gate digs into pavement or hangs open. We convert to cantilever sliding systems with custom-welded track supports.
- Welded-in original hardware with no replacement path. Many 1950s–1970s San Carlos gates have hinges and latches welded directly to the frame by original builders. We cut these out cleanly, weld new mounting plates, and restore adjustability.
Pricing for Gate Parts & Welding in San Carlos, CA
| Service | Typical Range in San Carlos |
|---|---|
| Hinge replacement (residential) | $180–$320 |
| Post replacement with concrete footing | $450–$890 |
| Rail repair / track alignment | $340–$620 |
| Gate roller replacement (sealed bearings) | $160–$280 per gate |
| Custom welding, brackets, fabrication | $280–$680 |
| Hillside sliding-gate retrofit with pad | $1,200–$2,800 |
What moves you up or down in these ranges? Three things: hillside versus flat lot (steep means more fabrication), age of original hardware (welded-in takes longer to extract), and whether the post or footing needs replacement alongside the visible part. We quote upfront after inspection — no open-ended hourly billing. Estimates are free. Call (833) 848-0143 to schedule.
We Also Serve Cities Near San Carlos
Our gate parts and welding crews work throughout the mid-Peninsula, including Belmont, Redwood Shores, Redwood City, and North Fair Oaks. Each has its own quirks — flat bayside lots versus hillside grades, different housing vintages, varying exposure to salt air — but the same rule applies: Mark Thompson leads the job, and we bring the parts and welding capability to fix it without referring work out.
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 — Gate Parts & Welding in San Carlos
Your original posts were sized for a manual gate you pushed open by hand, not a 200-pound operator cycling twice daily. We replace them with steel or heavy-wall aluminum posts set in engineered concrete footings with embedded weld plates — typically $450–$890 in San Carlos. Call (833) 848-0143 and we’ll assess whether your apron can support the new footing or needs extension.
Yes, if the underlying metal is sound. We grind away corrosion, weld repair patches or replacement plates as needed, and refinish with primer and paint formulated for marine exposure. Severely pitted castings or thin-wall tubing may need section replacement instead — we’ll tell you which before striking an arc. Estimates are free.
Absolutely, but it usually requires pouring a separate level concrete pad alongside your sloped apron. That’s standard practice on San Carlos hillsides west of Alameda de las Pulgas, and something flat-lot contractors from Redwood City or Belmont rarely anticipate. We coordinate the pad pour, then fabricate and weld custom track supports to bridge old and new concrete. Budget $1,200–$2,800 for the full retrofit.
We stock current LiftMaster components and can often source discontinued parts through our supplier network. If the part is obsolete and the repair cost approaches replacement pricing, we’ll show you both options honestly. Same-day fixes happen when the part’s available; special orders typically take 3–5 business days.
We core-drill or epoxy-anchor new post bases into sound concrete, then weld custom transition brackets that distribute the operator load across a wider footprint. This avoids breaking out old concrete — critical on San Carlos mid-century aprons that may be thin or deteriorated underneath. We always test concrete integrity first; if it’s too far gone, we’ll recommend replacement rather than risk failure. Call (833) 848-0143 for an on-site assessment.
Written by Mark Thompson, Owner at Coastal Gate Repair Service, serving San Carlos and the Peninsula since 2008.