Fast, Reliable Gate Installation Across San Lorenzo
Gate installation in San Lorenzo typically runs $1,800–$4,500 for a standard residential project, with most homeowners receiving a same-week site visit and written estimate. We’re Coastal Gate Repair Service San Jose, and our Gate Installation team knows San Lorenzo’s Bohannon tract homes inside and out—those 800-square-foot post-war cottages where every side-yard gate tells a story of decades of DIY patches, mismatched hardware, and posts that lean like they’ve given up. If you’re in ZIP 94580, from the flats near San Lorenzo Creek up to the Hassler Heights streets, we’ll be there. Call (833) 848-0143 for a free estimate.

Why Coastal Gate Repair Service San Jose Is San Lorenzo’s Preferred Gate Installation Company
We’ve been crossing the Dumbarton Bridge and heading up 880 to San Lorenzo for 17 years, and the pattern is always the same: a homeowner frustrated by a gate that won’t close, a property manager dealing with tenant complaints, or a new owner discovering their “recently installed” gate is actually three mismatched pieces held together with lag bolts from 1987. Mark Thompson, our owner and lead technician, handles every site visit personally. That matters in San Lorenzo, where the narrow lot clearances and county-specific code requirements reward someone who’s solved these exact problems dozens of times before.
Our 661 verified reviews averaging 4.8 stars include plenty from San Lorenzo customers who found us after generalist contractors couldn’t navigate Alameda County’s permit process or underestimated the corrosion from the marine fog rolling off the Bay. We’re typically on-site in San Lorenzo within 24–48 hours of your call, and we carry parts for FAAC, BFT, Linear, Viking, and other major brands in our service vehicles—no waiting for a third-party supplier to ship to the East Bay.
Our Gate Installation Services in San Lorenzo
Swing Gate Installation
Swing gates are the default choice for San Lorenzo’s narrow driveways and side yards, but they’re also where we see the most code-compliance headaches. Because San Lorenzo is unincorporated Alameda County—not a city—gate and fence permits and inspections are handled by the county building department, which has different setback and egress requirements than neighboring San Leandro or Hayward. Most homeowners don’t learn this until they’re mid-project. We handle the permit research upfront, and we know that in Bohannon tracts, the original 3–4 ft clearances frequently make it impossible to swing a replacement gate outward for egress compliance without relocating the latch-side post entirely—a hidden labor cost that surprises homeowners expecting a straightforward hinge-and-hardware swap. We price this honestly from the start. Typical swing gate installation in San Lorenzo: $2,200–$3,800 for a standard single gate with posts and hardware.
Pedestrian Gate Installation
San Lorenzo’s small lots mean the pedestrian gate is often the gate you use ten times a day—the one from your driveway to your side yard, or from the sidewalk to your front path. These take the most abuse and get the least attention during prior DIY installs. We recently replaced a pair of mismatched swing gates on a narrow side yard in the Hassler Heights section of San Lorenzo. The original 1940s posts had shallow footings and rotted bases from years of marine fog and seasonal saturation. We installed new 4×4 pressure-treated posts with concrete footings extending below the frost line, and mounted a pair of Ghost Controls swing gate openers, ensuring the gates could still open inward for egress compliance despite the tight 36-inch clearance. Pedestrian gate installation in San Lorenzo: $1,800–$2,900.
Sliding Gate Installation
When your clearance is too tight for any swing configuration, a sliding gate is the solve. We install cantilever and track-mounted sliding gates for San Lorenzo properties where the driveway abuts the sidewalk or where side-yard space is measured in inches, not feet. The track hardware needs to be marine-grade stainless—standard galvanized rail will pit and bind within two winters of salt fog. We source BFT and Linear sliding operators with sealed gearboxes rated for coastal exposure, and we pour concrete footings deep enough to handle the saturated soils along San Lorenzo Creek’s drainage basin. Sliding gate installation: $3,200–$4,500.
Driveway Gate Installation
For properties with the rare wider lot or for commercial clients near Hesperian Boulevard, we install double swing and bi-folding driveway gates. These projects demand the most coordination with Alameda County’s building department, especially when automated openers are involved. We handle the structural welding, the operator mounting, and the access-control integration—keypads, remotes, phone-app systems—in-house. No subcontractors, no delays. Double driveway gate installation: $3,800–$6,500 depending on automation and access-control complexity.
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 work on the brand you already have, and we install the brand that fits your property. Our factory familiarity covers nine major manufacturers: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. For San Lorenzo’s corrosive environment, we typically recommend FAAC or BFT hydraulic operators for heavy-use commercial gates, and Linear or Viking electromechanical systems for residential properties where quiet operation matters. We stock common wear parts—gearboxes, control boards, safety loops, photo eyes—locally, so a service call doesn’t turn into a two-week wait for a board from Illinois. From a broken weld to a full smart-access system, one company handles your entire gate ecosystem.

Common Gate Installation Problems We See in San Lorenzo Homes
- Corrosion from salt fog causes hinge and latch failures within 2-3 years on standard galvanized hardware, requiring stainless steel or marine-grade alternatives. We see this constantly on gates facing west toward the Bay, where the fog rolls in heaviest.
- Narrow Bohannon lot clearances (often 36-48 inches) make outward-swinging gates noncompliant with Alameda County egress code without relocating the latch post, adding hidden labor costs. We measure twice and quote once, so you’re not surprised mid-project.
- Decades of piecemeal DIY additions lead to non-standard post footing depths; many posts rest on only 6-8 inches of concrete, causing sagging and binding within a year of installation. We pull old posts and pour proper footings as standard practice, not an upsell.
- Wood rot at post bases accelerates in the lower-lying western portions of 94580, where seasonal saturation from San Lorenzo Creek’s drainage basin keeps soil damp well into June. Pressure-treated posts with concrete footings extending below the frost line are the only lasting fix.
Pricing for Gate Installation in San Lorenzo, CA
| Gate Type | Typical Range in San Lorenzo | What’s Included |
|---|---|---|
| Pedestrian gate (single swing) | $1,800 – $2,900 | Posts, hardware, basic latch, installation |
| Single swing driveway gate | $2,200 – $3,800 | Posts, hinges, latch, installation |
| Sliding gate (residential) | $3,200 – $4,500 | Track/cantilever hardware, posts, installation |
| Double swing driveway gate | $3,800 – $6,500 | Posts, hardware, automation-ready framing |
| Gate opener (added to any above) | $1,200 – $2,800 | Operator, safety devices, remote/keypad, programming |
What moves you within these ranges? Post count and condition of existing footings. Whether we can reuse posts or need to extract rotted 1940s lumber and pour new concrete. Automation complexity—basic remote versus phone-app access control with vehicle detection loops. And the permit factor: Alameda County’s review timeline for unincorporated properties can add $200–$400 in permit fees and a week to the schedule. We quote all of this upfront. No “we’ll see when we get there.” Call (833) 848-0143 for your free estimate.
We Also Serve Cities Near San Lorenzo
Our service radius covers the full southern Alameda County corridor. We regularly install and repair gates in Ashland, Cherryland, Castro Valley, and Fairview—each with their own permit jurisdictions and housing stock quirks. If you’re unsure whether your property falls in San Lorenzo’s unincorporated zone or a neighboring city’s boundaries, we’ll verify that during your site visit and handle the correct permit path.
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 Installation in San Lorenzo
Yes. Because San Lorenzo is unincorporated Alameda County, all gate and fence permits are issued through the county building department, not a city office. The county has specific setback and egress requirements that differ from neighboring San Leandro and Hayward, which catches many contractors off guard. We handle the permit research and submittal as part of our standard project workflow. Call (833) 848-0143 to discuss your specific lot and gate type.
Marine-grade 316 stainless steel hinges, latches, and slide bolts outlast standard galvanized hardware by 5–7 years in San Lorenzo’s salt-fog environment. We specify stainless or powder-coated aluminum for all hardware on gates within two miles of the Bay, and we use sealed-operator housings from brands like Viking and Linear that are rated for coastal moisture exposure. Call (833) 848-0143 and we’ll spec the right hardware for your property’s exact exposure.
Yes, but it must swing inward to comply with Alameda County egress code, and the operator must be sized for the reduced arc. We’ve installed Ghost Controls and Mighty Mule compact operators in dozens of San Lorenzo’s narrowest side yards, including the Hassler Heights job where 36 inches was the maximum available. The key is accurate measurement of the post-to-post opening, the swing arc, and any obstructions like utility boxes or HVAC condensers. Call (833) 848-0143 for a site measurement—we’ll tell you if it works before you spend a dollar.
Because “set in concrete” in a 1940s DIY install often means 6–8 inches of concrete in a shallow hole, not the 24–30 inch depth with proper drainage that current practice demands. San Lorenzo’s clay-heavy soils expand and contract with seasonal moisture changes, and shallow footings heave with that cycle. We extract old posts completely, auger to proper depth, add gravel drainage, and pour concrete footings that extend below the frost line. The difference is immediate and lasting. Call (833) 848-0143 for an assessment of your post condition.
Absolutely. Bohannon tract side-yard openings follow predictable but non-standard dimensions—typically 36, 42, or 48 inches, but rarely the 36-inch or 48-inch nominal sizes you’ll find at big-box retailers. We fabricate gates to exact measurements in our shop, with in-house welding capability for steel and aluminum frames. We can match existing styles or design something new that respects your home’s architecture. Call (833) 848-0143 for a free measurement and fabrication quote.
Ready to stop fighting a gate that never worked right? Call Coastal Gate Repair Service San Jose at (833) 848-0143 for a free, on-site estimate in San Lorenzo. Mark Thompson will walk your property, measure your opening, check your posts, and give you a written quote with real numbers—no hand-waving, no surprises three weeks in.
Written by Mark Thompson, Owner at Coastal Gate Repair Service San Jose, serving San Lorenzo and the East Bay since 2007.