Fast, Reliable Gate Repair Across San Lorenzo
Gate repair in San Lorenzo typically runs $180–$650 depending on the damage, and most jobs are completed same-day when you call before noon. We’re Ironclad Gate Repair Service San Francisco, and our Gate Repair team covers the 94580 zip code with owner-led service from Kevin Flores. San Lorenzo’s unique situation — thousands of mid-century Bohannon tract homes hitting simultaneous gate failure — means we’ve developed specific repair protocols for your neighborhood’s 70- to 80-year-old side-yard gates, salt-fog corrosion, and creek-adjacent post heave. Call (866) 788-1265 for a free estimate.

Why Ironclad Gate Repair Service San Francisco Is San Lorenzo’s Preferred Gate Repair Company
We’ve been crossing the San Mateo Bridge to repair gates in San Lorenzo for 11 years, and the pattern is unmistakable: this community has a gate repair demand profile unlike anywhere else in the East Bay. While San Leandro and Hayward have mixed-vintage housing, San Lorenzo’s concentrated Bohannon-era stock means we’re addressing wave after wave of simultaneous hinge failures, rotted frames, and post heave — and neighbors talk. Our 1,072 verified reviews at a 4.8-star rating include dozens from San Lorenzo homeowners who found us after frustrating experiences with generalist handymen who didn’t understand tract-era gate construction.
Kevin Flores handles every San Lorenzo call personally as lead technician. That means the person quoting your job is the same person cutting rusted hinges with a torch and welding new hardware on-site. We don’t dispatch anonymous subcontractors. Our in-house welding capability and stocked parts inventory let us fix structural metal damage, fabricate custom brackets, and replace rotted wooden frames without waiting on outside vendors — critical when your side-yard gate is your home’s primary security point.
Response time to San Lorenzo averages 45–90 minutes from call to arrival for standard repairs, and we prioritize emergency calls where a failed gate has compromised property security. We know the local streets — Via Alamitos, Hesperian Boulevard, Lewelling Boulevard — and we understand that a sagging gate on a Bohannon tract home isn’t a simple hinge swap; it’s usually a symptom of systemic decay in 80-year-old wood and uncoated steel.
Our Gate Repair Services in San Lorenzo
Hinge Repair
Bare steel hinges from the 1940s and 1950s don’t just wear out in San Lorenzo — they rust solid. The salt-laden marine fog that rolls through the Coast Range gaps and blankets 94580 accelerates corrosion far beyond inland rates. We regularly torch-cut seized hinges off Bohannon tract gates and replace them with powder-coated galvanized hardware rated for coastal exposure. Typical hinge repair in San Lorenzo runs $180–$320. Kevin selects hardware specifically for your gate’s weight and wind exposure; a side-yard gate catching afternoon bay breezes needs different specs than a sheltered rear gate.
Post Repair
Post heave is epidemic along properties backing San Lorenzo Creek and its drainage channels. The persistently soggy soil causes concrete footings to shift, tilting posts and throwing gates out of alignment within months of installation. We recently repaired a sagging side-yard gate on Via Alamitos in the Bohannon tract. The original wooden frame had rotted at the base from decades of salt fog exposure, and the bare steel hinges were rusted solid. We replaced the hinges with powder-coated galvanized hardware, realigned the gate, and set the replacement post in a concrete footing elevated above the water table to prevent future heave. Post repair with proper drainage mitigation in San Lorenzo typically costs $280–$480.
Weld Repair
Decades of patchwork repairs on aging Bohannon gates often leave weakened frames, cracked brackets, and failed welds from previous contractors. Our mobile welding rig lets us address structural metal fatigue on-site rather than removing gates to a shop. We fabricate custom steel reinforcements for wind-load resistance — increasingly important as storm patterns intensify across the Bay Area. Weld repair and structural reinforcement in San Lorenzo generally runs $240–$450 depending on material thickness and access.
Gate Realignment
Realignment without addressing root cause is temporary work, and we won’t do it. In San Lorenzo, misalignment usually traces to one of three sources: rotted frame corners allowing the gate to rack, rusted hinges binding and pulling unevenly, or post heave from inadequate footings. Kevin diagnoses the actual failure before adjusting anything. Proper realignment with underlying repair in San Lorenzo costs $200–$380.
Rust Treatment
Surface rust on gates is cosmetic; structural rust is terminal. We treat early-stage corrosion with abrasive cleaning and protective coating, but we’re direct with San Lorenzo homeowners: once salt fog has penetrated hinge barrels or latch mechanisms, replacement outlasts repair. Rust treatment and hardware preservation service runs $160–$280. For gates with extensive coastal corrosion, we’ll show you exactly where the metal is thinning and recommend whether treatment or replacement makes financial sense.

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.
Trusted Brands We Service in San Lorenzo
We service equipment from Linear, Viking, Ghost Controls, and DoorKing — plus FAAC, BFT, Elite, Mighty Mule, and LiftMaster — covering virtually any residential or commercial gate system in San Lorenzo. Our van stocks common parts for these brands, which means San Lorenzo customers aren’t waiting days for a solenoid, circuit board, or gear assembly. Kevin is certified to work on all nine major brands, so your specific opener or access control system doesn’t get handed off to someone learning on the job. Whether it’s a Viking slide gate operator on a commercial property near Hesperian Boulevard or a Ghost Controls residential swing gate in the Bohannon tract, we carry the diagnostic tools and replacement components to complete the repair in one visit.
Common Gate Repair Problems We See in San Lorenzo Homes
- Original wooden frames rotting from salt fog. The marine layer that blankets San Lorenzo penetrates end-grain on 1940s–50s Douglas fir and redwood gates, causing base rot that collapses the frame corner. We replace with pressure-treated or composite framing, sealed against future moisture intrusion.
- Bare steel hinges frozen solid by coastal corrosion. Unlike inland communities where hinges gradually wear, San Lorenzo’s salt air causes galvanic corrosion that seizes hinge pins within 15–20 years. We cut these out with torches and install galvanized or stainless alternatives.
- Post heave along creek-adjacent properties. Homes near San Lorenzo Creek or its drainage channels experience recurring gate misalignment because standard concrete footings settle in seasonally saturated soil. Our elevated footing design addresses the actual soil condition, not just the symptom.
- Mismatched decades of patchwork repairs. Bohannon tract gates have often been “fixed” three or four times by different owners using incompatible hardware, leaving frames with multiple screw patterns, mismatched hinge sizes, and compromised structural integrity. We strip this back to sound material and rebuild correctly.
Pricing for Gate Repair in San Lorenzo, CA
Here’s what gate repair costs in San Lorenzo’s market:
| Service | Typical Range |
|---|---|
| Hinge repair / replacement | $180 – $320 |
| Post repair with proper footing | $280 – $480 |
| Weld repair / structural reinforcement | $240 – $450 |
| Gate realignment (with underlying fix) | $200 – $380 |
| Rust treatment / hardware preservation | $160 – $280 |
| Full gate replacement (Bohannon tract style match) | $850 – $1,400 |
Three factors move San Lorenzo jobs toward the higher end: extensive rust requiring torch work, post heave demanding elevated footings, and custom fabrication to match original Bohannon tract gate profiles. We quote upfront before starting work — no open-ended billing. Call (866) 788-1265 for your free estimate.
We Also Serve Cities Near San Lorenzo
Our service radius from San Francisco covers Ashland, San Leandro, Cherryland, and Castro Valley — but San Lorenzo’s concentrated mid-century housing stock keeps us particularly busy here. The gate problems we solve in San Lorenzo differ from the mixed-vintage challenges in San Leandro or the newer construction in Castro Valley; that’s why local focus matters.
Serving San Lorenzo, CA — Our Local Coverage Area
We’re based in the San Lorenzo 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 Repair in San Lorenzo
Sagging returns when the underlying cause isn’t fixed — usually post heave from soggy creek-adjacent soil or rotted frame corners that continue degrading. In San Lorenzo, we see this constantly on Bohannon tract homes where previous repairs addressed only the hinge, not the waterlogged post or rotted base. Kevin evaluates the full load path before touching a hinge. Call (866) 788-1265 and we’ll diagnose whether your sag is structural, soil-related, or hardware failure — estimates are free.
Yes — we regularly fabricate replacement frames that match the original dimensions and board-and-batten or horizontal plank profiles common to Bohannon-era gates. We use modern pressure-treated or composite materials for longevity while preserving the period appearance that neighborhood covenants and personal preference demand. Kevin carries sample profiles and can match your existing gate’s look. Call (866) 788-1265 to schedule a style consultation with your repair estimate.
Yes — afternoon bay breezes and seasonal storm fronts exert significant lateral force on side-yard gates, especially those with solid panels that catch wind like sails. We assess your gate’s exposure and can reinforce frames with diagonal bracing, upgrade to wind-rated hinges, and add stop posts to prevent blow-back damage. For gates in open exposure near Lewelling Boulevard or other corridor-facing properties, this reinforcement is particularly worthwhile. Call (866) 788-1265 to discuss wind-load protection for your specific situation.
Very likely — properties within several blocks of San Lorenzo Creek or its drainage channels have seasonally high water tables that undermine standard concrete footings. Even if you’re not creek-adjacent, San Lorenzo’s clay-heavy soils expand and contract with moisture, gradually tilting posts. Our repair includes soil assessment and, where needed, footings elevated above the saturation zone with drainage rock to prevent recurrence. Call (866) 788-1265 for post repair that addresses the actual cause, not just the lean.
Replacement of an existing gate in the same location typically does not require an Alameda County permit if you’re not altering the fence line or increasing height beyond existing limits. However, new gates in front setbacks or height modifications may trigger review. We advise San Lorenzo customers to verify with Alameda County Planning before proceeding on any project involving location or dimension changes. Kevin can document your existing gate’s specifications to support permit applications if needed. Call (866) 788-1265 and we’ll guide you through whether your specific replacement requires county notification.
Written by Kevin Flores, Owner at Ironclad Gate Repair Service San Francisco, serving San Lorenzo and the East Bay since 2014.