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.
Fast, Reliable Gate Installation Across Union City
Gate installation in Union City typically runs $2,800-$7,500 for a complete residential system, depending on gate type, materials, and whether you’re replacing corroded hardware on a 1970s tract home or installing fresh on newer construction. Most Union City installations are measured and scheduled within a week, with written pricing delivered before any work starts. Call (669) 900-1904 for a free estimate.
We’ve been dispatching crews to Union City since we opened our Bay Area office in 2014. The western flatlands along the bay marshes, the wind-scoured tracts near the Dumbarton corridor, and the older pockets of Decoto each present distinct gate problems - and each requires different materials, different footings, and different hardware specs to last. Our technicians carry galvanized and stainless-steel hardware on every Union City truck because we’ve learned what fails here and what doesn’t.
Why Vance Gate Repair Sunnyvale Is Union City’s Preferred Gate Installation Company
We’ve completed over 22,000 gate repairs and installations since 2014, every one with a written price before work started and a documented photo record when the technician left. Union City customers find us because they’ve already read the three-star reviews elsewhere and want to see the quote in writing before anyone picks up a tool.
Our response time to Union City is typically same-day for repair calls and within one week for new installation measurements. Scheduling is coordinated from our Bay Area office, with crews serving Union City locally - not dispatched from two counties away.
What sets us apart in this market is The Haven Standard: a written scope, a written price, and photographic evidence on every single visit. Under Clause 1, you get the flat price in your hand before we touch a wrench. Under Clause 4, you get a photo log of every adjustment and a written record of the part number installed. Our 365-Day Done Right Promise means if anything’s not right, we make it right - no argument, no fee, no expiration within that window.
A live person answers our phone 24 hours a day, seven days a week. No voicemail loop, no callback queue, no automated attendant at any hour.
Our Gate Installation Services in Union City

Driveway Gate Installation
Most Union City driveway gates we install replace original 1960s-1980s tubular-steel or wrought-iron units that have succumbed to salt-air corrosion. A new driveway gate in Union City typically runs $3,200-$6,800 for a complete system including gate panel, posts, hardware, and operator. We spec galvanized or powder-coated steel with stainless fasteners for coastal exposure, and we pour new footings to current depth standards - critical in the softer, older tract-home soils where original posts have heaved or rotted.

Swing Gate Installation
Swing gates dominate Union City’s residential streets, but the Dumbarton corridor winds create lateral loads that sag hinge posts and loosen footings over time. We see this constantly in the flatlands west of Alvarado-Niles Road. Our swing gate installations start at $2,800 for a manual single gate and run to $5,500 for a motorized system with safety photocells and keypad entry. We set galvanized steel hinge posts with stainless lag bolts and specify adjustable hinge plates that can be re-torqued as soils shift.

Sliding Gate Installation
Sliding gates suit narrow Union City driveways where a swing gate would encroach on sidewalk or street space, and they’re increasingly specified for newer townhome clusters near the BART station. A residential sliding gate installation in Union City typically costs $4,500-$7,500, including the track system, cantilever or rolling hardware rated for coastal exposure, and operator. We use sealed bearing trucks and zinc-plated track to resist the salt-laden bay air that seizes unprotected rollers within seasons.

Pedestrian Gate Installation
Pedestrian gates in Union City range from simple side-yard access points to integrated entry systems with magnetic locks and card readers for HOA-managed properties. Most residential pedestrian gate installations run $1,800-$3,400. In the Decoto district, we frequently encounter non-standard post spacing from pre-war construction that rejects off-the-shelf gate frames - we measure twice and fabricate to fit, or source salvage hardware that preserves the gate geometry.

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.
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AfterTrusted Brands We Service in Union City
We install and service nine major automation brands - our Gate Installation team works with whatever motor is already on your property rather than steering you toward unnecessary replacement. In Union City, we most commonly install Linear and Viking operators for their corrosion-resistant enclosures and reliable limit-switch performance in coastal conditions. We also stock Ghost Controls and DoorKing components locally for faster turnaround on warranty and repair calls. Every operator we install carries a written warranty, part numbers documented under Clause 4, and compatibility verified with your existing access-control system.
Common Gate Installation Problems We See in Union City Homes

- Salt-air corrosion on street-facing hardware. Union City’s western flatlands sit directly against the San Francisco Bay salt marshes at the mouth of the Dumbarton Bridge wind corridor, so exposed steel hardware on street-facing gates can pit and seize within five to seven years - a timeline inland Tri-Cities techs in Dublin or Pleasanton rarely see. We spec stainless or galvanized hardware as standard, not as an upgrade.
- Wind-driven lateral load on hinge posts. The Dumbarton corridor winds drive constant lateral load on street-facing gates, accelerating sag at the hinge post and loosening post footings in Union City’s older tract-home soils. We pour new footings to 36-inch minimum depth with concrete rated for expansive clay, and we use adjustable hinge plates that can be re-torqued without re-welding.
- Non-standard post spacing in Decoto. The historic Decoto district contains pre-war and early postwar properties with hand-forged hardware and non-standard post spacing that rejects off-the-shelf replacements. The wrong hinge or latch breaks the gate geometry on installation. We measure on-site, fabricate custom brackets when needed, and maintain relationships with salvage suppliers for period-appropriate hardware.
- Failed operator boards from moisture intrusion. Salt-laden air penetrates non-sealed operator enclosures and corrodes circuit boards, particularly on budget units installed without weatherproofing. We specify NEMA-rated enclosures and sealed conduit entry as standard for every Union City installation.
Pricing for Gate Installation in Union City, CA
Here’s what gate installation costs in Union City’s market, with ranges that reflect actual material and labor for coastal-spec work:
| Service | Typical Range in Union City |
|---|---|
| Manual pedestrian gate (single, steel) | $1,800 - $3,400 |
| Manual driveway swing gate (single) | $2,800 - $4,200 |
| Motorized swing gate with operator | $4,200 - $5,500 |
| Sliding gate with track and operator | $4,500 - $7,500 |
| Double swing gate with dual operators | $5,800 - $7,500 |
| Custom fabrication (Decoto salvage/period hardware) | Add $400 - $1,200 |
These ranges include galvanized or powder-coated steel construction, stainless fasteners, concrete footing, and standard hardware. Motorized systems include operator, safety photocells, and two remotes. What moves the price: gate width and height, access-control add-ons (keypad, intercom, card reader), custom fabrication for non-standard openings, and soil conditions requiring deeper or engineered footings.
The price is written and agreed before any work starts. No call-for-a-quote runaround, no surprise invoice at the end. Bring us a written estimate from another company and we’ll review it free - our second-opinion service.
We Also Serve Cities Near Union City

Our crews work throughout the Bay Area, with regular installation and service calls in Union City as well as Fremont, Hayward, Palo Alto, and Atherton. Each city’s conditions differ - Fremont’s warmer inland valleys, Atherton’s estate-grade estate specifications, Hayward’s hills - and we spec accordingly. Dispatch and scheduling are coordinated from our Bay Area office.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Union City

Union City’s western flatlands sit directly against San Francisco Bay salt marshes at the mouth of the Dumbarton Bridge wind corridor, so salt-laden marine air and constant wind exposure pit painted steel and seize hinge pins within five to seven years. Dublin and Pleasanton sit inland, beyond the coastal influence, where the same hardware lasts fifteen to twenty years with basic maintenance. We spec galvanized steel, powder coating, and stainless fasteners as standard for Union City installations, not as upgrades. Call (669) 900-1904 for an exact quote - estimates are free.
Specify galvanized or powder-coated steel construction, stainless-steel fasteners and hinge pins, a galvanized steel hinge post set in concrete to 36-inch depth, and an operator with a NEMA-rated sealed enclosure. We replaced a failed swing gate on a 1970s tract home near Decoto, where the original tubular-steel driveway gate had seized hinges and a rotted hinge post footing that had heaved out of alignment. We pulled the old post, poured a new footing, set a galvanized steel hinge post with stainless lag bolts, hung a new powder-coated swing gate rated for coastal exposure, and fitted a LiftMaster operator with a safety photocell and keypad entry. The homeowner had been told the gate just needed ‘new hinges’ for three years; the post was the real failure point. Call (669) 900-1904 for an exact quote - estimates are free.
We measure on-site, fabricate custom brackets or posts when needed, and maintain relationships with salvage suppliers for period-appropriate hardware. The historic Decoto district’s pre-war and early-postwar gates with hand-forged hardware and non-standard post spacing routinely require custom fabrication that technicians in newer Tri-Cities suburbs rarely encounter. Under Clause 4, we photograph the original hardware, document the measurements, and leave you with a record of what was fabricated and installed. Call (669) 900-1904 for an exact quote - estimates are free.
Yes - UL 325 is the national safety standard for gate operators, and it applies to every automated gate in Union City, including requirements for entrapment protection (safety photocells or edge sensors), automatic reverse, and control placement. We verify UL 325 compliance on every installation, document the safety device type and placement in your photo record, and will not activate an operator until all required protective devices are installed and tested. This is non-negotiable under our license and our own standards. Call (669) 900-1904 for an exact quote - estimates are free.
Sagging on Union City swing gates is almost always a footing or hinge-post problem, not a hinge problem - the Dumbarton corridor winds drive lateral load that loosens posts in older tract-home soils. Check whether the post moves when you push the gate; if it does, the footing has failed and new hinges will sag again within months. We pull failed posts, pour new footings to current depth standards, and set adjustable hinge plates that can be re-torqued as soils shift. Under the 365-Day Done Right Promise, if the post settles again within a year, we return at no charge. Call (669) 900-1904 for an exact quote - estimates are free.
Ready for a gate that’ll last in Union City’s salt air? Call (669) 900-1904. We’ll send a technician to measure, photograph the site conditions, and deliver a written price before any work starts. No voicemail, no callback queue - a live person answers 24/7.
Written by Adrian Vance, Owner at Vance Gate Repair, serving Union City since 2014.





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