Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across Key Largo
Door installation in Key Largo has to answer one question before anything else: will this assembly hold at 170 mph wind load while standing in salt fog from two directions at once? A standard impact door from a mainland supplier will not. TruePane Windows & Doors installs Impact Windows & Doors - Key Largo that meet Monroe County’s dual mandate: impact-rated for wind, marine-grade for corrosion. We’re second-generation glaziers led by Dale Kessler, and we’ve been setting doors in the Florida Keys long enough to know what the ocean does to hardware. Call (448) 428-7290 for a free estimate on any door installation in Key Largo.
Why TruePane Windows & Doors Is Key Largo’s Preferred Door Installation Company
We answer our own phone. That matters to Key Largo homeowners, many of whom have lived through the frustration of calling a Miami contractor who treats the Upper Keys as a distant service stop. Our scheduling runs out of the South Florida office, but our crews work Key Largo regularly, and a live person picks up 24 hours a day, seven days a week, not a voicemail tree.
Dale Kessler founded this company in 2008 on a rule he keeps on the whiteboard to this day: if the pane is not true, the job is not done. For Key Largo door work, that rule extends to the frame, the sill pan, the hinges, and the flashing. We’re an authorized installer for more than a dozen manufacturer lines, including PGT, CGI. When we quote a door in Key Largo, we put the manufacturer warranty layers in writing, durations stated, before the truck leaves the driveway. That’s The Keystone Standard, and every job carries our Done Right Promise.
Key Largo homeowners call us because we understand the houses here: 1950s CBS cottages with original aluminum sliders, post-Andrew elevated homes on pilings, canal-front properties with two facades facing the water. We know which doors have died on which blocks, and we know what Monroe County code demands for each.
Our Door Installation Services in Key Largo
Entry & Swing Doors
An Energy-Efficient Windows - Key Largo entry door is the first line of defense against wind-driven rain and the most visible piece of hardware on the house. A typical impact-rated entry swing door installation in Key Largo runs $2,800 to $6,500 depending on the slab, the frame material, and whether the existing opening needs new bucks. We install fiberglass, steel, and wood entry doors, always with stainless steel or marine-grade aluminum hardware, because galvanized hardware on a canal-front home doesn’t make it five years.

Double & French Doors
Sliding & Patio Doors in Key Largo like double French doors on a patio or balcony face the full brunt of the Atlantic or Florida Bay exposure. A properly installed impact-rated French door set in Key Largo typically runs $5,500 to $12,000. The price reflects the marine-grade hardware, the reinforced mullion, the sill pan flashing, and the water management system that Monroe County’s wind-driven rain standards require. We measure every opening twice and quote manufacturer lines side by side on paper so you see exactly what you’re buying.

Storm Doors
A storm door in Key Largo is not a decorative add-on. It’s a sacrificial outer layer that shields your primary entry door from the salt spray and hurricane-force horizontal rain that eats hinges and weatherstripping in two seasons. Storm door installation in Key Largo runs $900 to $2,400 for a quality unit with proper corrosion-resistant hardware. We recommend storm doors with retractable screens wherever the primary door faces water or open salt wind.

Bifold & Folding Doors
Bifold and folding doors open wide to Key Largo’s tropical light, but they also carry the highest wind-load demand of any opening in the home. A multi-panel folding door system on a Key Largo waterfront home runs $8,000 to $18,000 or more depending on panel count and glass package. The key is the floor track and pivot hardware: in this salt environment, those components must be marine-grade aluminum or stainless, and they must be set into a properly sloped and flashing-sealed sill. We set them so they glide, not grind, year after year.

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 Largo
We’re factory-authorized for more than a dozen door and window lines, including Es Windows service in Key Largo, and for Key Largo work we lean on the brands that build for real coastal exposure: PGT, CGI, CWS, and Andersen. The reason we can quote these side by side on paper is that we don’t carry just one supplier’s line. If your existing door is a PGT and you want to match the look with a new side lite, we can. If CGI’s stainless hardware package fits a canal-front exposure better, we’ll show you the line-item difference and let you decide. We keep our Key Largo jobs supplied with local parts so a hardware replacement doesn’t mean waiting on a mainland shipment.
Common Door Installation Problems We See in Key Largo Homes
- Fused aluminum frames on older CBS homes. On a canal-front 1960s cottage off Sexton Cove Road, our crew had to core-drill out an original aluminum sliding door whose jamb had corroded and fused to the block over fifty years of salt air, then build a custom pressure-treated wood buck before anchoring a new impact-rated swing door. This is normal work in Key Largo and almost unheard of on the mainland.
- Standard impact hardware that seizes in three to five years. A door can pass the Miami-Dade impact test with stainless-looking hardware that isn’t true marine grade. In Key Largo’s dual-ocean salt fog, those hinge pins and threshold plates oxidize and bind. We spec marine-grade hardware on every opening, even inland-facing doors, because the salt here doesn’t respect which way the house faces.
- Door slab replacements that skip the sill pan. A cheap quote in Key Largo often covers only the slab, leaving the corroded sill pan or jamb in place. That’s a water intrusion point waiting for the next 130 mph wind-driven rain. We won’t set a new door on a rotting or corroded opening. The job is not done until the perimeter seal is pressure-tested and the flashing tape is laid correctly.
- Unpermitted door swaps that surface at claim time. Monroe County requires permits and inspections on door replacements to verify impact compliance. A homeowner who skips this step can lose an insurance claim in a wind event because they can’t prove the opening met code. We pull permits, we schedule the inspection, and we hand you the documentation before we leave.
Pricing for Door Installation in Key Largo, FL
Here are honest Key Largo numbers, not vague ranges you can’t act on. A standard single entry door with impact glass runs $2,800 to $6,500. A double French door set runs $5,500 to $12,000. Storm doors run $900 to $2,400. A full bifold or folding door wall starts around $8,000 and climbs from there. What moves the price is the opening itself: a 1960s CBS jamb that’s fused to the block costs more to extract and re-buck than a clean modern rough opening. Marine-grade hardware adds a line item every Key Largo door should carry. The quote we give you is the price you pay, with both warranty layers registered in writing. That’s a square deal, not a lowball with a change order coming. Call (448) 428-7290 for a free estimate on your door installation in Key Largo.
We Also Serve Cities Near Key Largo
Our crews work the Upper Keys through the mainland. If you’re in Homestead, we can extend Door Installation service into your neighborhood, and our Key Largo team knows the drive and the code requirements on both sides of the county line. Call us and we’ll tell you what a compliant quote includes before you spend a dollar.
Serving Key Largo, FL - Our Local Coverage Area
We’re based in the Key Largo 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 - Door Installation in Key Largo
Yes. Monroe County’s coastal exposure categories push wind design speeds toward 170 mph in Key Largo, which is higher than many of Miami-Dade’s inland zones. Your door must carry a product approval for the specific exposure category on your site, and the frame, hardware, and anchoring must all meet that same rating. A door rated for Miami’s inland wind load may not be legal on a Key Largo canal-front lot. Call (448) 428-7290 and we’ll check your opening against Monroe County’s current map before we quote a product line.
Key Largo is roughly two miles wide, with salt-laden air pushing off the Atlantic and Florida Bay simultaneously for most of the year. There’s no land buffer in either direction. That dual-salt environment attacks metal faster than a single-coast exposure like Fort Lauderdale, which is why we spec stainless steel or marine-grade aluminum hardware on every door in Key Largo, even hinges and threshold screws that a mainland installer would never think about. If your existing hinges are pitting or your threshold plate is flaking, the hardware was never spec’d for this island. We’ll show you the marine-grade alternative line by line.
Yes. Monroe County’s permit requirement applies to the assembly, not just the glass. Replacing a frame, jamb, sill pan, or anchoring system changes the structural connection between the opening and the house, and that needs inspection. If the old frame is corroded or the anchoring is failing, the glass isn’t doing what your insurance company thinks it’s doing. We pull the permit, coordinate the inspection, and document the compliance so your insurance file stays clean. Call (448) 428-7290 for a free estimate, permitting included in the quote.
We core-drill it out. On older Key Largo CBS homes, aluminum door frames corrode into the masonry over decades of salt exposure, and you can’t simply unbolt them. Our crew removes the fused frame, clears the opening, and builds a custom pressure-treated buck that gives the new impact-rated frame a solid, code-compliant anchor. This scope of work is unique to Key Largo’s older housing stock, and it’s why a mainland quote that assumes a clean rough opening can be off by a thousand dollars. We’ll look at the opening before we quote, so the number is real.
Yes, and more than most homeowners realize. If a wind event damages your Key Largo home and the door wasn’t permitted or documented as impact-compliant, the insurance carrier can deny the portion of the claim tied to the opening. Monroe County code requires the permit and inspection for exactly this reason. We register both warranty layers in writing and hand you the inspection documentation when the job closes. That paperwork is part of The Keystone Standard, and it’s part of why a TruePane job in Key Largo costs what it does. Call (448) 428-7290 to have your opening assessed for free.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Largo with marine-grade door installations that meet Monroe County’s wind-load and corrosion requirements.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



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