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 Parts & Welding Across Key Biscayne
Gate parts and welding in Key Biscayne come down to one thing: salt. The island sits between Biscayne Bay and the Atlantic, which means every hinge, roller, weld point, and control board is fighting a losing battle against airborne salt and humidity unless the parts are marine-grade and the work is done right. At Gatewood Fence & Gate, we weld on site, replace what’s actually failed, and waterproof what the last guy left exposed. If your gate is sagging, stalling, or rusting through at the bracket, call (877) 610-2993 and Hal will head over with the truck stocked for Key Biscayne conditions.
Why Gatewood Fence & Gate Is Key Biscayne’s Preferred Gate Parts & Welding Company
We’ve been fixing gates on Key Biscayne long enough to know that a 1978 wrought-iron swing gate on Harbor Drive fails differently than a 2006 tubular-steel slide gate on Crandon Boulevard. The first one pits deep at the hinge welds. The second one eats control boards because the underground conduit sits in salt-soaked fill dirt. Our Gate Parts & Welding crew carries marine-grade splice kits, sacrificial zinc anodes, and stainless hardware because that’s what this island requires.
The person who shows up works for Hal Gatewood, not a subcontractor three counties away. Hal has been at this since 2001, his license number is published, and the 90-Day Done Right Promise is in writing on every job. If a weld cracks or a hinge starts to bind within 90 days, one call brings him back. No runaround.
Key Biscayne customers call because they want a face they’ll see again at the Winn-Dixie on Crandon, not a national outfit with a dispatch queue. We answer the phone with a live person 24/7, and we’re typically on the island within an hour for urgent gate failures.
Our Gate Parts & Welding Services in Key Biscayne
Hinge Replacement
A gate sags in the hinge post, not in the middle. On Key Biscayne, the hinge barrels and mounting bolts on older iron gates often look fine from the curb while the steel inside is pitted to half its original thickness. We cut out the old hinge, weld in a new marine-grade barrel and leaf, and reinforce the post face where the salt has eaten it thin. If the gate still hangs straight after that, you’ll fix it once instead of every two years.

Post Replacement
In barrier-island soil, a gate post is only as good as its footing. We’ve pulled posts on Key Biscayne that looked solid above ground and found the embedded section corroded to lace below grade. We set the new post deeper, shoot the footing larger than the original, and wrap the buried steel in a protective sleeve before the concrete goes in. Flooded ground here means the post has to be treated like a marine pile, not a fence post.

Rail Repair and Custom Welding
When a slide gate rail cracks or a decorative scroll snaps off a Key Biscayne estate gate, we weld it in the driveway. The gate stays on the property, the repair matches the surrounding steel, and the heat-affected zone gets a cold-galv spray and epoxy coat so the salt doesn’t immediately start on the fresh weld. We also fabricate custom brackets, gate stops, and receiver plates when the original part is too far gone or was never right for the wind load in the first place.

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 service FAAC, BFT, Linear, and Viking operators, which covers the majority of residential and condo gate systems on the island. Our trucks carry common control boards, loop detectors, remotes, and hinge kits for Key Biscayne jobs, so most repairs happen in a single visit. We’re certified on nine major gate brands, and if a part is unique to your system, we order it the same day and get back out as soon as it lands.
Common Gate Parts & Welding Problems We See in Key Biscayne Homes
- Salt-crusted control boards and terminals: Underground wiring runs on Key Biscayne sit in perpetually wet, salty fill soil. Junction boxes flood, terminals corrode, and the board burns out. Elevating and waterproofing the box is the only repair that lasts.
- Deep pitting at 1970s-1980s weld points: Wrought-iron gates from that era are especially prone to pitting at hinge brackets and scroll joins. The metal looks decorative from a distance, but the cross-section at the weld has quietly thinned for 40 years.
- Wind-load stress on solid infill slide gates: A full aluminum or steel panel catches hurricane wind like a sail. The rack and pinion flexes, the roller brackets crack, and the post can shear at the footing after a named storm passes.
- Flooded conduits baking the board repeatedly: If you’ve replaced the same operator board twice in three years, the problem is not the board. It’s the water in the pipe. We seal the conduit, elevate the enclosure, and stop the cycle.
Pricing for Gate Parts & Welding in Key Biscayne, FL
A hinge replacement on a Key Biscayne single swing gate typically runs $275-$475 per hinge pair, including the marine-grade hardware and on-site welding. Post replacement with a new footing in island soil runs $650-$1,200 depending on depth and whether the old concrete has to be jacked out. Custom welding and rail repair ranges $180-$600 based on the extent of the damage and the prep work required. A flooded-junction-box waterproofing job with conduit sealing and terminal replacement typically lands between $300 and $550.
We quote the price up front, in writing, before any work starts. No trip charge inside Miami-Dade County, and standing offers include $40 off any repair over $200, a free second opinion on any written estimate, and a permanent 10% discount for seniors and veterans. Call (877) 610-2993 and Hal will give you the number over the phone.
We Also Serve Cities Near Key Biscayne
Gatewood Fence & Gate does gate parts and welding work across Key Biscayne and the surrounding South Florida coast, including Coconut Grove, Coral Gables, Miami Beach, and Miami. If you’re across the Rickenbacker Causeway or just off the island, we’ll get to you just as quickly.
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 Parts & Welding in Key Biscayne
Check the post bases for fresh cracks in the concrete, look for water streaming out of the operator enclosure, and operate the gate once in manual release mode before restoring power. If the gate binds, drags, or the motor hums without engaging, stop using it and call (877) 610-2993. A gate that took a hard wind load can have a cracked roller bracket or bent rack that will destroy the operator if forced.
Because your underground conduit floods with salt water. Key Biscayne’s barrier-island soil is saturated with brackish groundwater, and the junction boxes at the gate post sit right in it. The terminals corrode, resistance builds, and the control board fries itself. Sealing the conduit and elevating the junction box above the water table stops repeat board failures. Call us for an inspection and a written quote.
In most cases, yes. We cut the broken hinge off at the post, grind the area back to solid metal, and weld in a new marine-grade hinge with a full-penetration pass. The gate keeps its original scrollwork and patina. If the post itself is too thin from corrosion, we’ll sleeve or replace that section, but the gate usually stays. Call (877) 610-2993 and we’ll assess it on site.
Locate the manual release handle or key on the operator, typically marked with a padlock icon or a red handle. Turn the key or pull the handle to disengage the motor from the drive, then push the gate by hand. Keep your hands away from the drive chain and rack while moving it. After power returns, re-engage the operator only after checking that the gate travels freely and the photocells are clear. If the gate won’t move smoothly by hand, leave it open and call us before re-energizing.
Yes. Condo gates on the island’s east side take direct salt spray off the Atlantic, so standard zinc-plated rollers rust through in under two years. We use nylon-coated stainless or all-stainless rollers for Key Biscayne condo gates, and we’ll put them on any replacement we do here as the default. Call (877) 610-2993 for a free estimate on your building’s gate.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Key Biscayne with on-site welding and gate repair since 2001.





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