Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Duck Key
Window replacement in Duck Key is not a cosmetic project. It is the difference between keeping your homeowner’s insurance and losing it. On this island, design wind speeds exceed 170 mph and insurers in the Keys routinely refuse to bind or renew policies unless every exterior opening carries a verified Florida Product Approval for wind-borne debris regions. A pre-Irma aluminum slider with a corroded track or a fogged insulated glass unit is no longer just an eyesore. It is a written justification for non-renewal. Our crews work Duck Key regularly, we know what the salt air does to frames here, and we answer the phone when you call us at (754) 238-2201.
Why TruePane Windows & Doors Is Duck Key’s Preferred Window Replacement Company
Founded by second-generation glazier Dale Kessler in 2008, TruePane built its name on a simple rule that still hangs on the whiteboard: if the pane is not true, the job is not done. That rule matters more in Duck Key than almost anywhere else in Florida because there is no forgiving margin for error at 170 mph design wind speeds. Our Window Replacement team has replaced more than a few rows of pre-Irma sliders on elevated CBS homes off Bimini Drive and Caribbean Drive, and we understand how Monroe County’s extreme wind-load zone changes every material decision.
We are not the cheapest bid on the island. We are the company Duck Key homeowners call when the cheapest bid from the mainland fell apart in salt air three years later. Every job we do is covered by The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before the truck leaves the driveway. And every job carries the Done Right Promise. If it is not done right, we make it right. No paperwork fights. No arguing. A live person answers our phone 24 hours a day, 7 days a week, not a voicemail tree.
When our background-checked, uniformed technicians work in a Duck Key home, they measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before they leave the driveway. That is how a company that plans to be in the Keys in thirty years behaves. We hold a permanent 5% discount for seniors and veterans, and we will be there when we say.
Our Window Replacement Services in Duck Key
Full Frame Replacement
Full frame replacement in Duck Key is the norm, not the exception. The island’s housing stock is almost entirely elevated CBS or wood-frame homes on concrete pilings, built or rebuilt to post-Hurricane Irma codes. That means the rough openings often show salt-corrosion at the buck, rotted trim from years of bidirectional spray, and flashing that was not installed with marine-grade materials. A full tear-out lets us square the opening, judge the condition of the lintel and sill, and set a new impact-rated frame with stainless hardware and marine flashing tape. Typical full frame replacement on a Duck Key elevated home runs $1,400 to $3,200 per opening depending on size, glass package, and whether the existing buck needs repair.

Insert Window Replacement
Insert replacements have their place on Duck Key where the existing frame is still sound and the home is not due for a wind mitigation reinspection. We see this most often on newer post-2017 construction where the original frame was set correctly but the insulating glass units have already failed from salt-laden humidity. Inserts preserve the interior trim and stucco returns, which matters on island homes where stucco repair means matching a specific Keys texture. Inserts in Duck Key typically run $900 to $1,900 per opening installed. We will tell you straight if an insert is the wrong call because the existing frame is too far gone to hold a new impact sash under 170 mph loads.

Storm Window Replacement
Storm window replacement on Duck Key means impact-rated systems with Florida Product Approval numbers accepted for Monroe County’s wind-borne debris region. That is non-negotiable. We are an authorized installer for CGI, PGT, ES Windows, and ECO Window Systems, among more than a dozen manufacturer lines, and we carry the documentation Duck Key underwriters expect to see. The point of a storm window on this island is not to protect the primary window from a stray branch. It is to keep the building envelope intact when a Cat 4 tries to peel the roof and push the walls apart. Impact-rated storm windows and fixed lites in Duck Key run $1,100 to $2,600 per opening when installed as part of a full frame replacement.

Energy-Efficient Upgrade
Energy-efficient upgrades in Duck Key are measured in two currencies: monthly FPL bills and insurance renewals. A failed insulated glass unit with collapsed argon fill and milky-white condensation has a U-factor closer to single pane than to the sticker on the original sash. On an island where air conditioning runs eleven months a year and salt-laden humidity strips window performance within five to seven years, the energy argument is not abstract. Replacing failed IGUs and worn weatherstripping as part of a full frame or insert project tightens the envelope, drops humidity infiltration, and satisfies the wind mitigation inspector at the same time. Energy-efficient packages in Duck Key add $150 to $450 per opening depending on low-e coatings and gas fill.

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
We are authorized installers for more than a dozen manufacturer lines, and on Duck Key we lean on the brands proven in marine environments: CGI, PGT, and ES Windows for impact-rated coastal work, ECO Window Systems for high-efficiency residential replacements, and CWS for custom lites where the opening is not standard. We do not push a single brand. We quote manufacturer lines side by side on paper so you see exactly what you are buying, what the warranty durations are, and what each layer covers. Both warranty layers get registered in writing before our truck leaves your driveway on Duck Key. That is The Keystone Standard, and it is our standard on every job.
Common Window Replacement Problems We See in Duck Key Homes
- Corroded bottom tracks on pre-Irma aluminum sliders. Bidirectional salt spray from the Gulf and the Atlantic side attacks the track, the rollers, and the latch hardware. Within five to seven years on Duck Key, sashes stop latching flush, and that single flaw flags the home during a wind mitigation inspection and gives the insurer written grounds for non-renewal.
- Failed insulated glass seals from salt-laden humidity. Duck Key is a true island. There is no dry inland air to rescue a window’s edge seal. Once the seal goes, argon escapes, humidity enters, and the pane turns milky-white. U-factor performance collapses, and the only fix is glass or full unit replacement.
- Seized or corroded jamb hardware and weatherstripping. The same aluminum components that last fifteen-plus years in central Florida seize here in half that time. We regularly see locked-up casement operators, rotted wool pile, and snapped latch springs on homes not ten years old.
- Stucco and flashing failure at rough openings on elevated homes. Duck Key’s elevated CBS and wood-frame homes move with wind and temperature differently than slab-on-grade mainland construction. When the original install used interior-grade flashing tape or plain steel screws, moisture wicks into the rough opening and the frame starts to rot or spall from the inside out.
Pricing for Window Replacement in Duck Key, FL
A full frame impact-rated replacement on Duck Key runs $1,400 to $3,200 per opening including tear-out, marine-grade flashing, stainless hardware, and disposal. Insert replacements run $900 to $1,900 where the existing frame is sound. Storm window upgrades add $1,100 to $2,600 per opening, and energy-efficient glass packages add $150 to $450. If salt has corroded the rough opening framing and we need to rebuild the buck or repair stucco, that adds $300 to $800 per opening depending on what we find. Labor on Duck Key runs higher than inland Florida because every fastener, every flashing layer, and every sealant has to be specified for marine exposure and 170 mph wind loads. The cheap spec costs more within a decade. We would rather be upfront about it now. Call (754) 238-2201 for a free estimate, and we will put the numbers on paper.
We Also Serve Cities Near Duck Key
If your home is on a neighboring key or mainland community, we run crews from the Miami office across the service area. We handle Window Replacement in Duck Key and surrounding areas including Anna Maria, Acacia Villas, Alafaya, and Altamonte Springs, with the same coastal-spec materials and the same warranty registration on every job. Call (754) 238-2201 to confirm your address is in the route.
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 - Window Replacement in Duck Key
Duck Key insurers refuse to renew those policies because pre-Irma aluminum sliders were never rated for Monroe County’s 170 mph wind-load zone, and the corroded bottom tracks and failed latches visible on inspection are documented evidence the openings are no longer protecting the building envelope. The insurer is not guessing. The wind mitigation inspector photographs the corroded track and the sash that does not latch flush, and the underwriter marks the policy for non-renewal. In practice, that means the replacement is a financial and legal necessity, not an elective remodel. We have seen this exact sequence on elevated CBS homes off Bimini Drive. If your renewal notice is in the mail, call (754) 238-2201 for a free estimate, and ask us to match the window spec to what your insurer requires.
For Duck Key specifically, fusion-welded vinyl and marine-grade aluminum with stainless steel hardware outlast standard aluminum by years. The island’s bidirectional salt spray attacks unprotected aluminum components far faster than inland Florida does, and steel hardware rusts shut within a couple of seasons. Fusion-welded vinyl frames do not corrode, and they seal cleaner against wind-driven rain. Marine-grade aluminum with a proper coastal finish and stainless hardware holds up when the homeowner wants a slimmer sightline. We specify both depending on the opening and the homeowner’s preference, and we quote them side by side so you see the trade-off on paper. Call (754) 238-2201 if you want us to look at what is on your home now.
Impact-rated replacement costs more in Duck Key because the materials, fasteners, and labor are spec’d for a different job. Inland installers can use standard aluminum, standard flashing, and standard hardware. In Monroe County’s extreme wind-load zone, every opening has to carry a Florida Product Approval accepted for wind-borne debris regions. That means heavier laminated glass, fusion-welded or marine-grade frames, stainless hardware, and marine flashing tape at every penetration. Labor runs higher too because our technicians are working on elevated homes, often in full sun and salt air, and every opening gets measured and sealed to survive a storm, not just a code inspection. The cheap spec fails early here, and then the homeowner pays for the same job twice.
Look for milky-white haze between the panes, moisture trapped inside the unit that does not wipe off from either side, or a distorted reflection when you look at the glass at an angle. That is the signature of a failed IGU seal on Duck Key, where salt-laden humidity forces its way in once the edge seal breaks, strips the argon fill, and collapses the U-factor. You may also notice the room near that window runs warmer, or the glass sweats on the inside during a humid afternoon. If you see any of that, the glass has to come out. Call (754) 238-2201 for a free estimate, and we will tell you whether a glass-only swap makes sense or the whole unit needs replacement.
No, you do not always have to replace the whole window. If the frame is sound, the glass is intact, and the opening still measures true, we can often replace the corroded track, rollers, latch, and weatherstripping and bring the sash back to flush operation. But if the corrosion has eaten through the bottom track and into the frame member, or if the insulated glass unit has already failed, then a hardware patch is wasted money. We will tell you which situation you have. And remember our standing offer: a free written repair estimate, plus the permanent 5% discount for seniors and veterans. Call (754) 238-2201 and we will put eyes on it.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Duck Key and the Florida Keys.
If you are ready to talk about replacing windows on your Duck Key home, call (754) 238-2201. A live person answers. We will schedule a free estimate, measure the openings, and quote your options on paper with both warranty layers registered in writing. Done right. That is the standard.
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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