Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Services in Key Largo, FL
If you’re looking for window and door work on the island, you already know Key Largo is a different animal than the mainland. Salt air works on frames, seals, hinges, and threshold plates from two directions at once, and hurricane season treats every opening in your home as a potential failure point. TruePane Windows & Doors installs, replaces, and services everything from impact-rated sliders to full custom windows and doors in Key Largo, and we answer the phone when you call: (448) 428-7290.
We’ve spent over four decades in the glass and glazing trade, and Dale Kessler founded TruePane in 2008 on a rule that still governs every job: if the pane is not true, the job is not done. Key Largo homeowners call us because we quote manufacturer lines side by side on paper, register both warranty layers in writing before the truck leaves the driveway, and stand behind every install with our Done Right Promise. No fine print, no arguing.
For a free estimate on any window or door project in Key Largo, call (448) 428-7290. A live person answers, any hour, any day.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Key Largo Homeowners Choose TruePane Windows & Doors
Salt, wind, and building codes on the island don’t leave room for guesswork. The homeowners we work with in Key Largo tend to have been in their houses for a long time, and they have a clear memory of the last contractor who left them with a fogged seal or a door that binds by July. They’re not shopping for the cheapest bid. They want the work done right, by a company that will still answer the phone if something goes wrong.
That’s the way we operate. We’re insured and bonded, background-checked, uniformed technicians do the work, and we measure every opening twice before a quote is ever written. Our standing in the community rests on the Done Right Promise, backed by The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, and workmanship guaranteed for 90 days with no paperwork fights. Dale Kessler, a second-generation glazier, built the company on this principle, and he’s still the one who answers the hard questions.
You’ll find our work throughout the island, from the canal-front homes in Stillwright Point and Anglers Park to the elevated houses along the oceanside stretch near Ocean Reef Club and the older CBS cottages off Route 905. We know what those houses demand because we’ve stood in them, measured them, and corrected the work of installers who didn’t.
Windows & Doors Services We Offer in Key Largo
Window Installation in Key Largo
New-construction and retrofit window installs are both part of the regular workload here. We set units so they don’t just meet Monroe County wind codes but actually hold up under decades of exposure to the Atlantic from one side and Florida Bay from the other.
Learn more about our Window Installation in Key Largo.

Door Installation in Key Largo
A door on this island has to do more than swing. It has to seal against wind-driven rain, resist corrosion at the threshold, and stay true through forty years of salt humidity. We install exterior doors, patio doors, and sliders with the same standard we’d use on our own homes.
Learn more about our Door Installation in Key Largo.

Window Replacement in Key Largo
Many older Key Largo homes still have jalousie or single-pane aluminum sliders with no storm rating at all. Replacement often means cutting corroded frames out of masonry and setting new, correctly anchored units. We handle the whole scope.
Learn more about our Window Replacement in Key Largo.

Impact Windows & Doors
Monroe County wind design speeds approach 170 mph in exposed coastal categories. Every Impact Windows & Doors in Key Largo we install is pressure-tested and set to current Florida Building Code, and we specify corrosion-resistant hardware that mainland installs rarely require.

Energy-Efficient Windows
Air conditioning runs hard in Key Largo, and old single-pane aluminum bleeds that cool right out. Energy-Efficient Windows in Key Largo with Low-E glass and properly sealed frames cut the load meaningfully, and we’ll show you the numbers on paper before you commit.

Sliding & Patio Doors
Waterfront homes live by their sliders, and a slider that binds or leaks becomes a daily frustration. We install and replace Sliding & Patio Doors - Key Largo built for marine environments and heavy seasonal use.

Glass Railing Systems
Elevated canal-front homes and decks with water views are common in Key Largo. Glass Railing Systems - Key Largo preserve the sightline and resist the salt. We design and install systems engineered for coastal conditions.

Custom Windows & Doors
Not every opening is a standard size, especially in houses built between the 1950s and 1970s. We build and install fully custom units when the opening demands it, and we match the house rather than forcing the house to match the window.

Neighborhoods We Serve in Key Largo
We work across the island, from the canals to the oceanside. Response time for a standard estimate in the Key Largo area is typically the same week we take the call, and we’ll tell you exactly when we’ll be there.
- Stillwright Point and the surrounding canal-front streets
- Anglers Park and Bay Drive areas
- Ocean Reef Club and the northern oceanside stretch
- Route 905 corridor and the CBS cottage neighborhoods branching off it
- Port Largo and adjacent residential streets
Why Key Largo’s Climate & Housing Affect Windows & Doors
Key Largo sits on a narrow island strip, roughly two miles wide at its widest point. The Atlantic pushes on one side and Florida Bay on the other, which means virtually every structure on the island faces aggressive salt air from multiple directions simultaneously. This is not a mild marine environment. It’s a corrosion environment more punishing than almost anywhere else in South Florida.
What that means in practical terms is this: Monroe County requires impact-rated windows and doors in exposed coastal categories, but in Key Largo, complying with the wind code isn’t enough. Frames, sill pans, hardware, and seals also have to be marine-grade. Standard impact products from the mainland corrode measurably faster here, and we’ve seen aluminum thresholds and hinges fail years before their time when the wrong product goes in. The dual demand, impact rating plus marine-grade materials, is the defining business reality for every job on the island.
Older canal-front CBS homes throughout Key Largo frequently have original aluminum jalousie or single-pane sliding windows whose frames have corroded and essentially fused to the masonry over forty or fifty years of salt exposure. Replacement crews regularly need core drills and custom pressure-treated bucks to extract fused frames before a new Monroe County-approved impact unit can be properly anchored. That’s a demolition and framing scope most mainland South Florida jobs never require, and it’s work we’ve done many times.
During hurricane season, wind-driven rain and potential storm surge demand properly sealed, pressure-tested assemblies. Even a failing perimeter seal on an impact unit can allow significant water intrusion at 130-plus mph. We inspect for exactly that and tell you plainly what’s holding and what isn’t.
Pricing for Windows & Doors in Key Largo
Pricing here runs higher than the mainland, and for good reason. Marine-grade hardware, corrosion-resistant frames, core-drill demolition on older homes, and stricter anchoring requirements all add cost. Honest ranges for Key Largo work look like this:
- Standard single window replacement: $900 to $2,200 per opening, depending on size and rating
- Impact window replacement: $1,400 to $3,400 per opening, with larger or custom openings at the higher end
- Exterior door replacement: $1,800 to $4,500, including threshold and weatherproofing work
- Impact sliding glass door: $4,000 to $9,500, varying by width, frame material, and glass package
- Full-home window and door package on an older canal-front home: $25,000 to $60,000+, depending on opening count and demolition scope
We quote manufacturer lines side by side on paper so you see exactly what you’re paying for. Estimates are free, and the price on the quote is the price on the bill. No change orders, no surprise line items. Call (448) 428-7290 for an exact number on your house.
Service Area - Cities Near Key Largo
While most of our work is right here on the island, we also serve homeowners just north of the Monroe County line. If you’re in the Homestead area and need the same standards applied to your windows and doors, we’re glad to help there too.
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 About Windows & Doors in Key Largo
Impact window installation in Key Largo typically runs between $1,400 and $3,400 per opening, with the final number depending on the size of the opening, the frame material, and whether demolition work is required on an older home. Marine-grade hardware adds cost compared to mainland installs, but skipping it leads to premature corrosion. Call (448) 428-7290 for a free, line-item estimate on your specific openings.
Yes. Monroe County wind design speeds approach 170 mph in exposed coastal categories, and the Florida Building Code requires impact-rated or otherwise code-compliant protection on replacement windows and doors in most situations on the island. We’ll verify the exact requirement for your elevation category and opening locations when we quote the job.
Yes, and it’s one of the most common jobs we do on the island. Older CBS cottages often have jalousie or single-pane aluminum sliders whose frames have corroded and fused to the masonry over decades of salt exposure. We handle the core-drill extraction, set new pressure-treated bucks where needed, and anchor the replacement unit to current Monroe County code. Call (448) 428-7290 and we’ll schedule a look at what you’ve got.
We do, every time. It’s part of The Keystone Standard: both manufacturer warranty layers are registered in writing, with durations stated, before the truck leaves your driveway. You’ll have the paperwork in hand, not a promise over the phone.
No. We quote fixed pricing up front, in writing, and we don’t add change orders unless you ask us to change the scope. The price on your quote is the price on your bill. If we find something unexpected during the job, we’ll show you and talk it through before anything changes.
Ready to Get a Straight Answer on Your Windows & Doors in Key Largo?
If you’ve been living with a door that binds, a slider that leaks, or windows you can feel the weather through, call us. We’ll come out, measure every opening twice, and give you a written quote with no surprises. That’s the whole offer: honest pricing, marine-rated products, warranties in writing, and a Done Right Promise on every job. Our home page has more on how we work, or you can call (448) 428-7290 right now and talk to a person. Free estimates, always.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Largo and the surrounding Florida Keys with marine-rated window and door work.
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.
Other TruePane Windows & Doors Services
What Neighbors Say About TruePane Windows & Doors
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Key Largo Customers Say
"Our bay window had rotted at the sill and two other outfits wanted to talk us into a flat picture window instead. TruePane rebuilt the opening and matched the original look. Neighbors have knocked on the door about it."
- Gene A."French doors to the patio, custom size because this house was built in 1961 and nothing is standard. Measured twice, three weeks to fabricate like they warned, and the install day they laid runners over my floors without being asked."
- Marie S."Whole-house window replacement at 71 years old is not something you want to do twice. Dale walked the house himself for the quote. Crew was the same three men all four days, and the foreman knew every window by room."
- Pat and Ray L.



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