Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Duck Key
Custom windows and doors on Duck Key start with one hard fact: this island sits fully exposed in Monroe County’s mandatory impact-resistant glazing zone, which means every replacement unit must be engineered to withstand design wind speeds over 150 mph. Add salt-laden wind blowing in from both the Atlantic and Florida Bay, and standard mainland window systems simply do not survive here. At TruePane Windows & Doors, we specify marine-grade, impact-rated systems for every Duck Key job because code demands it and the salt air punishes anything less. Call (954) 280-4413 for a free estimate, and we’ll walk you through exactly what your home needs.
We have been setting windows and hanging doors long enough to know what this island does to hardware. The salt does not rest. The wind does not quit. And the elevation requirements on stilt homes near Hawks Cay Resort and the surrounding canals mean almost every opening is a custom job, not a stock unit pulled off a shelf. We measure twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before our truck leaves your driveway.
Why TruePane Windows & Doors Is Duck Key’s Preferred Custom Windows & Doors Company
Duck Key homeowners do not have the luxury of a mainland buffer. Every structure faces open water, and every opening faces wind-driven salt. That is why we treat this island differently than any inland market we serve. Our Custom Windows & Doors team has replaced enough ghost-corroded frames and fogged seals in Duck Key to know exactly which manufacturers hold up and which fail within two seasons. The local failure mode is predictable, and we build every estimate around it.
TruePane Windows & Doors was founded by second-generation glazier Dale Kessler, and his founding rule still governs every install: if the pane is not true, the job is not done. We hire local, train apprentices into journeymen, and act like a company that plans to be on this island in thirty years. A live person answers our phone 24 hours a day, seven days a week. Not a voicemail tree, not a callback form. When a Duck Key homeowner calls about a failed impact unit, they talk to a person who knows the difference between a retrofit and a full-frame replacement in this salt environment.
Our background-checked, uniformed technicians work in your home the way they would work in their own mother’s. That means shoe covers, drop cloths, and a clean workspace. It also means no surprise line items on the bill. Most Duck Key jobs are completed in a single visit because we arrive with the right materials, the right flashing, and the right attitude about getting it done right the first time.
Our Custom Windows & Doors Services in Duck Key
Custom Shape Windows
Duck Key homes built after Hurricane Donna and Irma often carry architectural quirks: radius tops, trapezoid transoms, angled glass facing the water. Stock units do not fit these openings, and forcing a square window into a radius opening is how you get leaks and voided warranties. We cut, order, and install custom shape windows in Duck Key to the exact rough opening, with impact-rated glazing and marine-grade frames. Every unit is measured twice and quoted on paper before we order.

Commercial Storefront Glazing
Duck Key’s commercial corridor around Hawks Cay Resort sees the same salt assault as the residential stock, but with higher foot traffic and stricter code enforcement for public occupancy. We install and replace commercial storefront glazing in Duck Key with impact-rated, anodized aluminum systems built for Monroe County’s wind zone. Failed storefront seals here are not just an energy problem; they are a liability. We replace them before they become one.

Curtain Wall Systems
Waterfront homes on Duck Key with expansive Atlantic-facing glass need curtain wall systems engineered for both impact and corrosion resistance. Standard aluminum extrusions begin showing salt-driven oxidation within two to three years on this island. We specify powder-coated and anodized finishes with stainless steel fasteners, and we flash every joint like the wind is going to test it, because it is. The design wind speed in this section of Monroe County exceeds 150 mph, and we build to that number.

Architectural Grilles & SDLs
Duck Key homeowners who want divided-light character without sacrificing impact ratings choose architectural grilles or simulated divided lites. We install SDL bars between the glass lites of impact-rated custom windows, which preserves the classic Florida Keys aesthetic while meeting every Monroe County code requirement. The grilles sit inside the sealed unit, so they never corrode from exterior salt exposure. That detail matters on an island like Duck Key.

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 Duck Key
TruePane Windows & Doors is an authorized installer for more than a dozen manufacturer lines, including CGI, PGT, ES Windows, and ECO Window Systems. For Duck Key specifically, we lean on marine-grade lines with proven salt-air performance histories and impact ratings engineered for the Middle Keys. We keep local Duck Key jobs on schedule by coordinating directly with manufacturers and staging materials before our crew arrives. You will see exactly which brand we recommend and why, quoted side by side on paper. No mystery, no markup games, no fine print that covers neither.
Common Custom Windows & Doors Problems We See in Duck Key Homes
- Ghost corrosion on aluminum frames. A window that looks intact from inside can have exterior frame and hardware degradation that has already voided the impact rating. On Duck Key, this often goes unnoticed on absentee-owned vacation homes for entire seasons. By the time a homeowner returns, the unit needs full replacement, not repair.
- Fogged insulated glass from failed seals. Constant salt spray and the thermal cycling between air-conditioned interiors and hot exterior glass cause seal failure far faster on Duck Key than on the mainland. Argon fill leaks out, moisture gets in, and the glass fogs even when the frame shows no visible damage.
- Improperly flashed sill pans on elevated entries. Stilt homes and elevated concrete-block construction require non-standard sill flashing to meet FEMA flood-zone elevation requirements. When a mainland crew slaps a stock door unit into an elevated opening, wind-driven saltwater wicks into the jamb and rots the structural frame within a few seasons.
- Hardware corrosion on doors exposed to open saltwater. Hinges, handles, and locking mechanisms on Duck Key doors take a beating from both the Atlantic and Florida Bay. Non-marine-grade hardware eats through in two to three years, while stainless and powder-coated marine hardware lasts decades. We specify the latter, every time.
Pricing for Custom Windows & Doors in Duck Key, FL
Custom shape windows in Duck Key typically run $1,800 to $4,500 per unit depending on size, shape complexity, and impact-rating requirements. Architectural grilles and SDLs add $300 to $900 per window. Custom impact-rated door units for elevated entries range from $3,200 to $7,500, with the higher end reflecting non-standard sill flashing and FEMA flood-zone compliance. Commercial storefront glazing on Duck Key starts around $85 per square foot for impact-rated, anodized aluminum systems. Curtain wall systems for waterfront homes run $120 to $220 per square foot installed. These ranges reflect marine-grade materials and the labor required to flash and seal every opening properly in this salt environment. Call (954) 280-4413 for a free, written, line-item estimate on your Duck Key project. We will quote manufacturer lines side by side, and the number we give you is the number on the bill.
The difference between a coastal-spec job and an inland-spec job on Duck Key is real, and it shows up in the materials. Stainless steel fasteners instead of galvanized. Powder-coated or anodized frames instead of raw aluminum. Full flashing tape around every jamb and marine-grade sealant at every sill. The coastal spec costs 20 to 35 percent more on paper. The cheap spec costs double within a decade, because you are ripping out ghost-corroded frames and paying for a second install. Duck Key does not forgive shortcuts.
We Also Serve Cities Near Duck Key
Our Duck Key crews also cover nearby communities including Acacia Villas, Alafaya, Altamonte Springs, and Altoona. If you are in one of these areas and need impact-rated custom windows or doors, call (954) 280-4413 and tell us where you are. We will tell you straight whether we can get a crew to your property and what the timeline looks like.
Why Salt Air Near Duck Key Decides the Materials, Not the Schedule
Most window companies talk about scheduling and turnaround time. On Duck Key, the conversation has to start with materials, because the island decides for you. Salt-laden wind from the Atlantic on one side and Florida Bay on the other creates a corrosion environment that mainland products simply do not survive. Standard aluminum extrusions begin pitting within two years. Non-anodized hardware rusts through. Glazing seals degrade from constant salt spray. The only practical, legal, and durable answer is marine-grade, impact-rated systems with stainless steel hardware and sealed, powder-coated finishes.
We see the failure up close. On a stilt home near Hawks Cay Resort, we replaced a set of non-marine-grade custom picture windows after salt-driven oxidation had eaten through the aluminum cladding and failed the impact rating within two seasons. The homeowner had no idea anything was wrong; the windows looked fine from the inside. Our crew installed ViewLux impact-rated custom windows with fusion-welded frames, stainless steel hardware, and full flashing tape around the jamb, plus non-standard sill flashing to meet the elevated FEMA flood-zone requirements. That is what a Duck Key window job looks like when it is done to this island’s actual conditions.
Because so many Duck Key properties are absentee-owned vacation homes, this failure mode has a name among local contractors: ghost corrosion. The unit looks intact from inside. The exterior frame and hardware have already compromised the impact rating. By the time anyone notices, the unit is a liability, not an asset. We tell every Duck Key homeowner the same thing: if your windows are more than a few years old and were not specified for marine exposure, call us before the next storm season. We will inspect them and tell you the truth, even if the truth is that they are still fine.
Serving Duck Key, FL - Our Local Coverage Area
We’re based in the Duck Key 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 - Custom Windows & Doors in Duck Key
Every replacement window or door in Duck Key must meet Monroe County’s impact-resistant glazing requirements, which means the unit must withstand design wind speeds over 150 mph and pass large-missile impact testing. You cannot legally install a non-impact-rated replacement unit here, regardless of what a mainland contractor might tell you. Call (954) 280-4413 and we will walk you through exactly what your openings need.
No. Standard aluminum extrusions begin showing salt-driven oxidation within two to three years on Duck Key, and that corrosion voids the impact rating even when the glass is still intact. You need marine-grade aluminum with anodized or powder-coated finishes and stainless steel hardware. Anything less is a temporary installation with a nice warranty that will not hold up when you need it.
Elevated stilt homes and concrete-block construction on Duck Key must meet FEMA flood-zone elevation requirements, which means the door sill sits higher than typical mainland rough openings and requires custom-height units with non-standard flashing details. Wind-driven saltwater gets under a poorly flashed sill pan and wicks into the jamb, degrading the structural frame silently. We flash every elevated entry as if the next hurricane is already on approach. Call (954) 280-4413 for an inspection and a straight answer.
On Duck Key, non-marine-grade aluminum frames and hardware can show visible corrosion within two years and compromise the impact rating within three. On absentee-owned vacation homes, this often goes unnoticed for entire seasons because the interior looks normal. If your Duck Key windows are approaching five years old and were not specified for marine exposure, schedule an inspection. We will tell you if the units are still sound or if they need replacement.
Marine-grade aluminum with a premium anodized or powder-coated finish is the best practical choice for Duck Key, paired with stainless steel hardware and fusion-welded or mechanically fastened corners. Vinyl can work but degrades faster under UV and salt spray than quality aluminum. We quote manufacturer lines side by side on paper so you can see the difference in materials, warranty coverage, and real-world performance in the Middle Keys. Call (954) 280-4413 for a free estimate.
If you have custom windows or doors on Duck Key that need replacement, inspection, or repair, call (954) 280-4413 today. A live person answers. We will set a time, send a uniformed technician, and give you a written line-item quote before any work begins. No pressure, no games. Just the right materials for this island and a job you will not have to think about again.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Duck Key and the surrounding Middle Keys with marine-grade, impact-rated window and door installations.
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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