Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Key Biscayne
If you live on Key Biscayne, you already know the score: every window and door on this island has to meet Miami-Dade High Velocity Hurricane Zone code, period. The question isn’t whether you need impact-rated products. It’s whether the hardware and frames you’re buying will survive the salt air that wraps this island 360 degrees, every day of the year. That’s the problem we solve. TruePane Windows & Doors installs and services Impact Windows & Doors across Key Biscayne, from mid-rise condo stacks near the bay to single-family homes on the ocean side of Crandon Boulevard. We’re the crew that pays attention to the fasteners, the frame coating, and the sill drainage, because on Key Biscayne those are the parts that decide whether a window lasts five years or thirty.
A live person answers our phone 24 hours a day, 7 days a week at (888) 635-0804. Call for a free in-home measure and a written quote. No voicemail tree, no regional call center.
Why TruePane Windows & Doors Is Key Biscayne’s Preferred Impact Windows & Doors Company
We’ve been setting windows and doors on the island long enough to recognize the failure patterns before they happen. Key Biscayne homeowners and condo boards call us because we spec the job for the salt first and the wind second. A standard anodized frame that passes Miami-Dade tests in a lab will still filiform-corrode along the weep holes within a few years when bay-front salt spray hits it every morning. That’s not a warranty fight; it’s chemistry. We install marine-grade finishes and 316 stainless hardware from the start, and we register both manufacturer warranty layers in writing before the truck leaves the driveway.
Dale Kessler founded TruePane on a rule that still governs every install: if the pane is not true, the job is not done. That means we measure every opening twice, quote manufacturer lines side by side on paper, and we stand behind the work with our Done Right Promise. You don’t fill out forms to invoke it. You call, we come back. That’s the entire promise.
Our background-checked, uniformed technicians work in your home the way they’d work in their own mother’s. And when a Key Biscayne condo board spends months getting a window replacement package through association votes and county permitting, we’re the installer who shows up on the approved date with the approved product, ready to set it square.
We serve all of Key Biscayne, including the condo corridors along Ocean Drive, the single-family streets off Woodcrest Avenue, and the gated communities near Crandon Park.
Our Impact Windows & Doors Services in Key Biscayne
Key Biscayne homes fall into two camps: original 1960s-to-1980s condos with corroded aluminum single-pane frames that were never designed for HVHZ loads, and post-Andrew luxury homes with newer units that are now fifteen to thirty years old and showing their own salt-driven hardware failures. We handle both. Here are the services we perform most often on the island:
Impact-Resistant Windows
Every impact-resistant window we install on Key Biscayne carries a Miami-Dade Notice of Acceptance matched to the specific opening size and design pressure. But the real differentiator here is what you can’t see. We specify marine-grade anodized or painted aluminum frames and 316 stainless hinges, operator arms, and jamb screws. In the 33149 zip code, standard zinc-plated hardware that passes lab tests rusts through within three to five years on any elevation facing the bay or ocean.

Hurricane Impact Windows
Key Biscayne sits in the strictest wind-borne debris region in the country. A hurricane impact window here has to do two jobs at once: hold the building envelope during a storm and keep functioning through daily salt spray. We quote PGT, CGI, ES Windows, and other manufacturer lines side by side on paper so you see exactly what you’re buying: glass type, interlayer, frame finish, hardware grade. No surprise line items on the bill.

Single Hung Impact Windows
Single hung impact windows remain a common spec for Key Biscayne condo bedrooms and secondary openings where cost matters but code compliance is non-negotiable. The lower sash operates; the upper is fixed. On island, we push a high-SHGC, low-E laminated interlayer for the glass package, which cuts solar heat gain without making the room dark, and marine-grade stainless balance springs so the sash doesn’t bind within five years.

Double Hung Impact Windows
For Key Biscayne homeowners who want both sashes operable, double hung impact windows offer venting from the top and bottom, which helps on a barrier island where cross-breeze is the difference between running AC constantly and opening up in January. We’ve set PGT double hung upgrades in condo stacks on West McIntyre Street where the original casement sashes had seized shut from corroded operator arms. The double hung design removes the exposed hardware failure point entirely.

Horizontal Roller & Sliding Impact Windows
Sliding impact windows are everywhere on Key Biscayne, especially on bay-facing elevations where wide sightlines matter. The weak point is never the glass. It’s the sill track and the roller hardware. Poorly designed sill drainage traps wind-driven saltwater, track screws corrode, and rollers grind against oxidized aluminum. We install units with reinforced sill drainage and specify marine-grade rollers and stainless track screws, which is the difference between a door that glides for a decade and one that seizes in three summers.

Wind Mitigation & HVHZ Code Compliance
Key Biscayne lies wholly within the Miami-Dade HVHZ. Every replacement requires a product with a valid Miami-Dade NOA or Florida Product Approval number matched to the opening’s design pressure. We handle that compliance work for you. Before install, we verify the NOA against the specific configuration we’re installing, and after the job we provide documentation your insurer will want for wind-mitigation credits. We never install a window with a rating above +/-100 on an opening that doesn’t call for it, and we don’t guess at design pressures.

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 Biscayne
We’re an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, ES Windows. For Key Biscayne projects we lean on PGT and CGI for most HVHZ openings, and we also work with ECO Window Systems and ViewLux where a project calls for a specific frame profile or price point. We maintain relationships with local suppliers who stock marine-grade hardware for this island, which means we’re not waiting on parts from a distribution center in Orlando when a condo board needs a corroded operator arm replaced before hurricane season. The truck leaves our Miami dispatch office with what the job needs.
Common Impact Windows & Doors Problems We See in Key Biscayne Homes
- Seized casement and awning sashes on bay-facing elevations. The original zinc-plated operator arms and jamb screws rust through within three to five years. The window still carries its NOA sticker, but the sash won’t move. We replace the hardware with 316 stainless and reset the sash.
- White filiform corrosion along frame weep holes and sill tracks. Non-marine anodized aluminum develops the characteristic branching corrosion pattern when salt-laden condensation sits in the drainage channels. Left alone, it migrates into the glazing channel and compromises the structural seal.
- Sliding door tracks that grind and bind. Wind-driven rain from both the bay and ocean sides gets trapped in poorly drained sill tracks. The track screws rust, the rollers chew oxidized aluminum, and the panel needs two hands and a shoulder to open by July.
- Fogged glass on original single-pane retrofits. Many Key Biscayne condos built in the 1970s and 80s still have the original aluminum single-pane frames. Seal failure is common, and even if the glass were replaced, the frames were never built for HVHZ loads. Replacement, not repair, is the only right call.
Pricing for Impact Windows & Doors in Key Biscayne, FL
A typical impact window installed on Key Biscayne runs $800 to $1,500 per opening for a standard-size unit. Impact single hung windows start around $900 and run up to $1,800 depending on size and frame finish. Large or custom openings, including picture windows and sliding glass doors, land between $2,500 and $5,000. A whole-home package on a Key Biscayne single-family residence typically falls between $8,000 and $25,000 or more, depending on opening count, floor height, and whether the frames need marine-grade coating upgrades.
What moves the price here more than anything is the coastal-spec question. A mainland-grade anodized frame with zinc-plated fasteners costs less up front and fails within a decade on this island. The marine-grade aluminum and 316 stainless hardware we specify costs more at install and looks expensive on a quote, but it’s the cheaper spec by year ten. Call (888) 635-0804 for a free in-home measure and a written line-item quote. We show you both specs and let you decide with the numbers in front of you.
What Impact Windows & Doors Costs in Key Biscayne
For clarity, here’s what you should expect on a Key Biscayne project. Standard impact windows run $800 to $1,500 per window installed. Impact single hung runs $900 to $1,800. Large openings and custom units run $2,500 to $5,000 each. Whole-home packages span $8,000 to $25,000 and up. What moves your number specifically on Key Biscayne: the number of openings, whether the building is mid-rise or single-family, the wind zone and design pressure required for each opening, and whether you opt for marine-grade frames and hardware. We quote all of it on paper, side by side, with no surprise line items added after the fact. The free in-home measure and written quote is the entire ask. Call (888) 635-0804.
Florida Pays You Back
There are real incentives available for Key Biscayne homeowners who upgrade to impact windows and doors, and they stack. My Safe Florida Home offers matching grants up to $10,000 for qualifying wind-mitigation improvements, subject to program funding and eligibility. Florida exempts impact-resistant windows and doors from state sales tax. The federal 25C energy credit covers 30% of the product cost for qualifying units, up to $600 per year. And after a wind-mitigation inspection, which typically runs $75 to $150, many Key Biscayne homeowners see windstorm-premium credits averaging around 25% on the windstorm portion of their policy. The programs set the final numbers, not us, but we’ll document the install correctly so you can claim what you’re owed.
One thing worth weighing before you commit: impact windows beat hurricane shutters for most Key Biscayne homeowners because they’re permanent protection. No panels to haul out of a storage closet at 2 a.m. when a storm track shifts, no hardware to corrode on the balcony railing, and no insurance agent asking for shutter-installation photos after the fact. The windows are just always doing their job. For a homeowner who plans to stay on this island for another twenty years, that’s the math that wins.
We Also Serve Cities Near Key Biscayne
TruePane Windows & Doors serves Key Biscayne and the surrounding South Florida area, including Miami, Miami Beach, Hialeah, and Opa Locka. We dispatch from our Miami office across the Rickenbacker Causeway and throughout the county. If you’re on the island or just across the water, Impact Windows & Doors work the same way: measured twice, quoted on paper, installed square.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne 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 - Impact Windows & Doors in Key Biscayne
An NOA sticker means the product passed impact and pressure cycling tests in a controlled lab environment. It does not mean the hardware will survive daily salt spray on a barrier island. On Key Biscayne, standard zinc-plated jamb screws and operator arms rust through within three to five years on bay-facing elevations, and non-marine anodized frames filiform-corrode along the weep holes. The sticker proves code compliance; the metal you spec proves longevity. Call (888) 635-0804 and we’ll show you the coastal-spec hardware that solves it.
Significantly longer. A window replacement in a mainland single-family home can be quoted, approved, and installed in weeks. On Key Biscayne, a condo project in a 1970s building often has to clear association board votes, architectural review committee requirements, Florida condominium statute approval processes, and Miami-Dade permitting. Months is realistic; a year is not unheard of. We’ve helped boards time the install for the dry season and we hold pricing through the approval cycle. Call (888) 635-0804 to get the process started early.
The operator arms and jamb screws fail first. On a 1980s condo window on West McIntyre Street, our crew pulled a unit with a perfectly intact NOA sticker and a completely seized casement sash. The zinc-plated operator arms had rusted through from bay-front salt spray. The frame was fine; the hardware was gone. That’s why we specify 316 stainless hinges and marine-grade sealants on every bay-facing elevation on Key Biscayne. Replacing the window without upgrading the hardware just starts the clock over.
The coastal-spec window uses marine-grade anodized or painted aluminum frames and 316 stainless hardware throughout: hinges, operator arms, jamb screws, track screws, rollers. The inland-spec window uses standard anodized frames and zinc-plated fasteners. Both pass HVHZ tests. The inland-spec fails in three to five years on Key Biscayne because the salt air is everywhere, on every elevation, every day. The price difference is real, typically 10 to 20 percent on hardware and finishes, but the coastal-spec window lasts decades where the inland-spec one corrodes before the next hurricane cycle. We quote both on paper and let you decide. Call (888) 635-0804 for the comparison.
Yes. The original single-pane aluminum frames in 1960s-to-1980s Key Biscayne condos conduct heat almost as efficiently as they conduct sunlight. A modern impact window with a low-E laminated interlayer and an insulated frame cuts solar heat gain meaningfully, and on a barrier island where AC runs ten months a year, that shows up on the FP&L bill. The effect is bigger in west-facing and ocean-facing units, where afternoon sun loads the glass hardest. Call (888) 635-0804 and we’ll walk through the glass package options in plain terms.
Call TruePane for Impact Windows & Doors in Key Biscayne
If you’re on Key Biscayne and your windows are seizing, fogging, or just original to a building that predates Andrew, we can help. A live person answers at (888) 635-0804, 24 hours a day, 7 days a week. We’ll schedule a free in-home measure, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves the driveway. You get our Done Right Promise and a square deal on price. No arguing, no fine print, no surprises.
If the pane is not true, the job is not done. That’s been the rule since Dale Kessler founded this company, and it still governs every install on this island.
Written by the team at TruePane Windows & Doors, serving Key Biscayne with impact windows and doors built for salt air, HVHZ code, and decades of service.



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