Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
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AfterFast, Reliable Sliding & Patio Doors Across Key Largo
Door Installation - Key Largo for sliding and patio door replacement runs $2,800 to $7,500 for a standard impact-rated unit installed, and most jobs are completed in one or two days once permits clear. That’s the honest range we quote on Key Largo canal homes and stilt houses every week. At TruePane Windows & Doors, we know this island’s salt air, flood-zone elevations, and Monroe County code requirements better than most mainland crews ever will. If you need a door that holds up to dual-salt corrosion and passes windstorm inspection the first time, call (813) 320-9346 for a free estimate.
Our Sliding & Patio Doors team handles everything from full replacements to hardware and roller rebuilds across Key Largo, from the Ocean Reef area down to Tavernier Creek.
Why TruePane Windows & Doors Is Key Largo’s Preferred Sliding & Patio Doors Company
We’re the company homeowners call after a cheap mainland crew gets red-tagged by Monroe County. That’s not a knock on other contractors. It’s a statement of fact about what Key Largo’s building code demands and what we do differently. Every sliding door we install through our Custom Windows & Doors - Key Largo service carries a Miami-Dade Notice of Acceptance (NOA) impact rating. No exceptions. No “interior zone” loopholes. The entire island sits inside Florida’s High Velocity Hurricane Zone, and we quote accordingly from the first visit.
Our lead installer on Monroe County jobs has been setting doors on stilt houses for over a decade. We know what a corroded 1970s aluminum jamb looks like before we touch it, and we know how to re-flash an elevated opening so water doesn’t find its way into the framing. Key Largo homeowners don’t want to hear about how things work in Broward. They want to know the crew showing up understands pilings, salt, and wind uplift. That’s what we bring.
Our Key Largo customers also get something they won’t find with a phone-book contractor: The Keystone Standard. Both manufacturer warranty layers registered in writing, durations stated, before the truck leaves the driveway. Plus our 90-Day Done Right Promise. If the door isn’t set right, we make it right. No paperwork fights. No arguing. That’s been our rule since Dale Kessler founded TruePane in 2008, and it hasn’t changed.
Our Sliding & Patio Doors Services in Key Largo
Patio Sliding Doors
Standard patio sliders are the most common door we replace in Key Largo, and the most common door that fails code. A typical 6-foot vinyl or aluminum patio slider with Miami-Dade NOA impact glazing runs $2,800 to $4,400 installed here. We set these in canal-front CBS homes, elevated wood-frame stilt houses, and the occasional ground-level concrete block ranch. The opening gets measured twice, the rough opening gets re-squared, and the flashing gets done with butyl tape, not caulk. If the pane isn’t true, the job isn’t done.
Panoramic Sliding Systems
Multi-panel panoramic sliders are what Key Largo homeowners upgrade to when they want the full water view and code compliance at the same time. These systems run $6,000 to $14,000 depending on panel count and glass package. We install them in homes along Ocean Isle Estates and Buccaneer Point where the old three-panel aluminum unit finally gave out. Impact-rated laminated glass and marine-grade stainless steel rollers come standard on what we quote. So does factory-applied coastal finish on the frames. Anything less corrodes in this air within a few years.
Heavy-Duty Sliding Doors
Heavy-duty sliders handle the wind loads and the abuse that lighter aluminum doors can’t. In Key Largo, these run $3,500 to $6,500 installed for a standard 2-panel unit with NOA impact rating. We recommend them for exposed elevations facing the Atlantic or Florida Bay, where wind-driven rain and salt spray hit the door head-on. The frames are stouter, the interlocks are reinforced, and the hardware is built for constant coastal exposure. Most jobs get done in a single visit once the permit is approved.
Pocket & Barn Doors
Pocket doors work well in Key Largo interiors and protected lanai walls where a swinging door takes up too much room. These run $2,200 to $4,800 installed depending on wall framing and whether the pocket cavity already exists. Barn doors are more common in newer remodels and elevated homes where the wall depth won’t take a pocket cavity. We install both, but on any door that leads to the outside, we still insist on impact-rated glazing and NOA documentation. The code doesn’t care whether the door slides into a pocket or hangs on a track. If it faces the elements, it meets the standard.
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 installers for more than a dozen manufacturer lines, and in Key Largo we most often quote PGT, CGI, and Simonton for impact-rated sliding doors. These are the brands whose NOA documentation holds up with Monroe County inspectors and insurance adjusters alike. We keep a flow of parts moving to Key Largo jobs, so when a roller set or a lock cylinder finally gives out after a decade of salt air, you’re not waiting six weeks on a backorder. We quote manufacturer lines side by side on paper, installed prices included, so you see exactly what you’re buying. A square deal, in writing.
Common Sliding & Patio Doors Problems We See in Key Largo Homes
- Aluminum frames oxidizing shut. Dual-salt air from the Atlantic and Florida Bay pits bare aluminum and swells the frame until the panel welds itself to the track. We’ve pulled doors in Buccaneer Point that hadn’t opened in five years. If the frame isn’t marine-grade coated, it will happen again.
- Steel hardware rusting into uselessness. Lock cylinders and roller bearings in Key Largo seize within months when a builder used non-stainless hardware. That leaves a door you can’t secure, which is a windstorm inspection failure and an insurance problem waiting for a claim.
- Weatherstripping turning to dust under UV. Foam seals harden and crack in two or three years here. Once the seal goes, salt-laden air gets into the track, the rollers grind against corrosion, and cooling bills climb as humid air leaks into the house.
- Stilt-house rough openings that don’t match modern doors. Elevated homes built on pilings in the 1960s and 1970s have rough openings that settled, twisted, or were never square to begin with. A mainland crew that doesn’t account for this ends up shimming a $4,000 door into a opening that leaks. We check the opening before we quote.
Pricing for Sliding & Patio Doors in Key Largo, FL
Here’s what we quote in Key Largo, and these are honest installed ranges, not “starting at” teaser numbers. A standard 6-foot patio slider with impact glass runs $2,800 to $4,400. A heavy-duty 2-panel slider runs $3,500 to $6,500. A panoramic system runs $6,000 to $14,000 depending on how many panels and the glass package. Pocket doors run $2,200 to $4,800. What moves a quote within those ranges: panel count, frame finish (coastal-grade coatings cost more and are worth it here), the condition of your rough opening, and whether we’re pulling a permit on an existing opening or expanding one. Every quote is line-item, fixed price, no change orders unless you change the scope.
Call (813) 320-9346 for a free estimate. We’ll measure the opening, check the existing frame for corrosion, and hand you a written quote on the spot.
We Also Serve Cities Near Key Largo
Our Sliding & Patio Doors crews serve Key Largo and the surrounding Upper Keys: Tavernier, Homestead, Key Colony Beach, and Marathon. Dispatch and scheduling run through our South Florida office near Miami, but the technicians who show up at your door are local to the Keys and know the code, the salt, and the inspector expectations in each town.
Serving Key Largo, FL - Our Local Coverage Area
We’re based in the Key Largo area and know this community well, offering Window Installation - Key Largo homeowners trust. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Sliding & Patio Doors in Key Largo
Yes, and this catches a lot of homeowners off guard. Monroe County treats any glass replacement in an exterior opening as a windstorm-related repair, and because all of Key Largo sits in the High Velocity Hurricane Zone, the replacement glass must carry a Miami-Dade NOA impact rating. A glass-only swap that skips the permit can leave you red-tagged and uninsured. If the frame is corroded, you’re usually better off replacing the entire unit. Call (813) 320-9346 and we’ll tell you honestly whether your frame is salvageable before you spend anything.
A compliant quote includes the Miami-Dade NOA number for the specific door being installed, the permit fee, the notice of commencement, the Monroe County inspection fee, and documentation of both the manufacturer warranty and the workmanship warranty. A cheap quote lists a door, a labor number, and not much else. What’s missing: the NOA documentation your insurer will request after a storm, the permit that protects you at sale, and the flashing and re-square work that keeps a stilt-house opening from leaking. We put all of it in writing before the job starts. That’s The Keystone Standard.
You’ll need three documents: the Miami-Dade NOA certificate for the door model, the Monroe County permit number, and the final inspection sign-off. We hand you all three. The NOA certificate is the big one. It tells your insurer the exact wind-load and impact rating the door passed. Without it, a windstorm claim can be reduced or denied after a storm because the insurer can’t verify the door met code. We register both warranty layers and provide the NOA documentation before the truck leaves the driveway.
Because Key Largo sits between the Atlantic and Florida Bay, so every canal-front home gets salt-laden air from two directions, not one. That air works into roller bearings, lock cylinders, and track hardware within months when non-marine-grade steel was used. Mainland homes deal with one salt source and often less direct wind-driven spray. The fix is marine-grade stainless steel hardware and a factory-applied coastal finish on the frame. It costs more up front and it’s the difference between a door that operates for 20 years and one that seizes in three.
No. Any new opening, including a widened opening for a pocket door cavity, triggers full High Velocity Hurricane Zone requirements under Monroe County code. The new pocket door system has to carry a Miami-Dade NOA impact rating, and the structural header over the pocket cavity has to be engineered and inspected. On a stilt house, the wall you’re cutting into may be a shear wall, which means an engineer has to sign off before the permit is issued. We’ve handled this exact conversion on canal-front homes in Key Largo. It’s doable, it costs more than a mainland picture-frame swap, and it has to be done to code. Call (813) 320-9346 for a straight answer on whether your wall can take it.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Largo and the Upper Keys.
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.