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.
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AfterFast, Reliable Gate Installation Across Key Biscayne
A custom gate installation in Key Biscayne typically runs $4,800 to $18,500 depending on size, material, and operator type. Most projects take two to four days from post setting to final programming, and we quote the full price in writing before any work begins. If you live on the island, you already know salt air eats gate hardware faster here than almost anywhere else in South Florida. We build for that reality. Call (877) 610-2993 and you’ll get Hal or one of his crew on the line, not a recording.
We’re Gate Installation specialists who have welded, hung, and automated gates on Key Biscayne long enough to know which corners cannot be cut. The island punishes cheap materials quickly. Our approach is simple: build it once, with marine-grade hardware and sealed conduits, so you’re not calling us back in three years because the hinge post rotted at the base.
Why Gatewood Fence & Gate Is Key Biscayne’s Preferred Gate Installation Company
Hal Gatewood has been running this shop since 2001, and his name is on every invoice. That matters on an island where word travels fast and a bad install gets talked about at the golf club. We carry a 90-Day Done Right Promise in writing on every gate installation in Key Biscayne. If something isn’t right, one call brings us back. No runaround, no fine print.
Every job gets an upfront price, quoted before we touch the first post. You also get standing offers that don’t require haggling: $40 off any repair over $200, no trip charge inside the county, and a permanent 10% discount for seniors and veterans. If you have a written estimate from another company, we’ll give a free second opinion. We’re owner-operated, state-licensed, and we answer the phone 24/7 with a live person, not a call center three states away.
For Key Biscayne specifically, we understand what the salt air does to gate hardware. We don’t quote mainland pricing for island conditions. We quote for what will actually last here.
Our Gate Installation Services in Key Biscayne
Driveway Gate
Driveway gates on Key Biscayne are often the first thing visitors see, and they take a beating from direct ocean exposure. We install custom fabricated driveway gates built from galvanized steel or marine-grade aluminum, with operators sized to the gate’s actual weight, not the brochure. In neighborhoods like Harbor Point and The Towers, we commonly set driveway gates with FAAC or BFT hydraulic operators that handle frequent daily cycles without overheating.
Pedestrian Gate
A pedestrian gate needs different hardware than a vehicle gate, and on Key Biscayne it needs corrosion-resistant hinges and latches or it’ll seize within a season. We build and hang pedestrian gates that match the main driveway gate in style and finish, with salted-air-rated hardware and closers that won’t rust shut. If you’re adding one beside a custom double gate, we match the ironwork so it looks like it was always there.
Sliding Gate
Sliding gates save space on narrow Key Biscayne lots, but oceanfront wind loads punish the track and rollers. We install sliding gates with stainless steel track systems and rack and pinion drives sized for sustained wind exposure, not just the gate’s weight. A sliding gate that hums quietly during a February nor’easter is a gate that was installed with the right tolerances from day one.
Swing Gate
Swing gates are the classic choice for Key Biscayne estates, and they hinge on posts that must resist salt corrosion at the base. We set swing gate posts in concrete footings with epoxy-coated rebar and seal the base with marine-grade compound. Without that step, the post starts pitting within a few years and the gate sags. With it, a custom double swing gate runs quietly for a decade or more.
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 Key Biscayne
We’re certified to service and install LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule operators. On Key Biscayne jobs, we typically recommend FAAC, BFT, or Linear for their sealed enclosures and marine-environment track record. We keep common parts for these brands stocked in our South Florida shop, so a control board replacement doesn’t mean waiting a week. If your existing gate runs on one of these brands and you’re upgrading hardware, we can reuse the operator if it’s worth keeping.
Common Gate Installation Problems We See in Key Biscayne Homes
- Salt-air corrosion at hinge post bases. We frequently cut out hinge posts on Key Biscayne that look fine above ground but are heavily pitted below grade. Non-marine steel fails within 3 to 5 years here. We use galvanized or stainless posts and seal the base so the salt can’t get in.
- Flooded underground junction boxes. Wiring runs to gate operators on the island often sit in saturated, salt-laden fill soil. Junction boxes fill with water, terminals corrode, and control boards burn out repeatedly. We seal conduits and elevate or waterproof the boxes, which most off-island installers skip.
- Wind-load damage to slide gates. Direct Atlantic exposure bends slide gate tracks and misaligns rack and pinion drives. That’s the noise you hear when a gate grinds along its track. We set tracks with heavier gauge material and align the drive to handle sustained wind, not just calm weather.
- Wrong operator for the gate weight. A 300-pound gate on a 500-pound-rated operator is fine in Orlando. On Key Biscayne, wind resistance can double the effective load. We size operators for the real conditions, not the manufacturer’s best-case chart.
Pricing for Gate Installation in Key Biscayne, FL
Here’s what Key Biscayne homeowners should expect for a custom gate installation:
- Single swing gate (galvanized steel, manual): $3,200 to $6,800
- Double driveway gate with operator (FAAC or BFT): $7,500 to $14,000
- Sliding gate with marine-grade track and operator: $9,000 to $18,500
- Pedestrian gate (matched to existing ironwork): $2,400 to $4,800
- Custom ornamental gate with intercom and camera entry: $12,000 to $25,000+
These ranges include materials, post setting, operator, safety sensors, and programming. The biggest cost drivers are gate size, material grade (galvanized steel vs. marine aluminum), operator brand, and whether we’re replacing existing posts or starting fresh. We quote the complete price in writing before any work starts, and that price doesn’t change at the door. Call (877) 610-2993 for an exact quote, and ask about the free second opinion if you already have a written estimate. No trip charge inside the county.
We Also Serve Cities Near Key Biscayne
Our Gate Installation in Key Biscayne customers sometimes ask if we work across the causeway, and we do. We serve Coconut Grove, Coral Gables, Miami Beach, and Miami with the same marine-grade materials and the same 90-Day Done Right Promise. The key difference is that Key Biscayne’s salt exposure is the harshest, so if our work holds up on the island, it holds up anywhere.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne 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 Key Biscayne
Because Key Biscayne is a barrier island surrounded by Biscayne Bay and the Atlantic, and the salt air concentration is dramatically higher than mainland Miami. Mild steel and non-marine stainless pit and fail within 3 to 5 years here. Marine-grade stainless and galvanized coatings are baseline requirements, not upgrades. Call (877) 610-2993 and we’ll explain exactly which hardware your specific gate needs.
We seal every conduit penetration with marine-grade compound and elevate or waterproof the junction boxes, which is exactly what most installers skip. The fill soil on the island stays perpetually saturated with salt water, and an unsealed box means corroded terminals and repeated control board failures. We also use direct-burial-rated wire inside sealed conduit, because standard landscape wire won’t survive here.
An oceanfront gate on Key Biscayne should be engineered for sustained wind speeds of at least 140 mph, which is the current Miami-Dade County high-velocity hurricane zone standard. That means heavier gauge posts, deeper footings, and an operator sized for the gate’s weight plus wind resistance, not just the gate’s weight. We size every oceanfront gate to that standard. If you’d like a wind-load assessment of your existing gate, call (877) 610-2993.
Because the salt air concentrates corrosion at the post base, where ocean spray and humidity meet the steel just below grade. The post pits, loses structural strength, and slowly leans, which drops the gate at the latch side. Fix the panel without addressing the post and you’ll fix it twice. We cut out the compromised section, pour new footings with epoxy-coated rebar, and set a galvanized or stainless replacement post.
Yes, we add intercom and camera entry systems to custom gates on Key Biscayne regularly, and we spec marine-sealed enclosures and corrosion-resistant mounts specifically for the island’s salt air. A standard off-the-shelf intercom panel will corrode at the terminals within two years here. We install sealed units with stainless hardware and run the wiring through the same waterproofed conduits we use for operators, so the entire system survives. If you’re planning a new gate or upgrading an existing one, call (877) 610-2993 and we’ll walk you through what works on the island.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate. Locally owned and owner-operated since 2001.