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Fast, Reliable Impact Windows & Doors Across Key Biscayne
Impact windows and doors in Key Biscayne typically run $1,800 to $6,500 per opening installed, with full condo retrofit packages landing between $22,000 and $58,000 depending on unit size and manufacturer line. Most jobs take two to four weeks from permit to final inspection, and on a barrier island with one causeway, that timeline matters. TruePane Windows & Doors has been doing exactly this work on the island for years, and we still answer every call with a live person at (954) 507-3613. Before you sign anything, get a written line-item quote you can actually read.
Why TruePane Windows & Doors Is Key Biscayne’s Preferred Impact Windows & Doors Company
Key Biscayne homeowners tend to ask the same three questions: will the window hold, will the company still exist in five years, and will someone pick up the phone when the seal fails. We answer all three the same way. Dale Kessler founded TruePane on a simple rule he keeps on the whiteboard: if the pane is not true, the job is not done. That standard has kept us in business since 2008 across South Florida, and it applies to every condo unit on Crandon Boulevard and every house off Harbor Drive the same as it does anywhere else.
We have never asked a Key Biscayne customer to leave a voicemail. A background-checked, uniformed technician measures every opening twice, quotes manufacturer lines side by side on paper, and registers both warranty layers in writing before the truck leaves the driveway. Customers on Key Biscayne mention that in their reviews. They mention the fixed pricing too, no change orders, no surprise line items. When the Commodore Club board needs wind mitigation paperwork signed, we hand it over complete the first time.
Response time to Key Biscayne runs 45 to 75 minutes from our South Florida dispatch office, traffic on the Rickenbacker Causeway permitting. We schedule around rush hour and causeway closures because we know the island has exactly one way on and one way off. That is not a detail a mainland contractor thinks about.
Our Impact Windows & Doors Services in Key Biscayne
Hurricane Impact Windows
Most of the island’s housing stock predates Hurricane Andrew’s 1992 code overhaul, which means plenty of older homes and condos still have single-pane aluminum frames and jalousie windows that would not pass a Miami-Dade inspection today. We replace those with impact-rated, NOA-approved units sized to each rough opening, with salt-rated hardware and fusion-welded frames as standard. In a dual-exposure salt environment like Key Biscayne, those are not upsells. They are the only thing that holds up.

Impact Sliding Glass Doors
The original aluminum sliding glass doors in 1960s and 1970s towers like the Commodore Club and Ocean Club were not built for decades of salt spray off Biscayne Bay and the Atlantic. We regularly see sash sag, jamb separation, and failed seals that let wind-driven rain through in even a moderate storm. Our Impact Windows & Doors team pulls the old units, checks the framing underneath, and installs Miami-Dade NOA-rated sliders with stainless rollers and laminated glass. The difference in hallway humidity after install is immediate.

Impact Entry & French Doors
Entry doors on Key Biscayne take a beating from salt air pushing in from both sides of the island, and a binding door in July is usually a corroded hinge or a frame that has shifted out of square. We install impact-rated entry and French door systems with multi-point locks, compression weatherstripping, and hardware rated for marine exposure. Every unit goes in plumb and true, with no gaps a storm can find.

Impact Garage Doors
Garage doors are the largest opening in most Key Biscayne homes, and the most common point of failure during a hurricane. A door that buckles inward pressurizes the whole structure and blows the roof off. We install impact-rated garage doors with reinforced tracks and hurricane bracing that meet current Miami-Dade wind load requirements. If yours predates 2002, it likely does not.

Wind Mitigation & Code Compliance
Insurers and condo associations across Key Biscayne increasingly require full impact-rated glazing, not just shutters, because the island sits in Evacuation Zone A with extreme hurricane exposure. We handle the wind mitigation inspection, fill out the Uniform Mitigation Verification Inspection form accurately, and make sure every product carries its Miami-Dade County Notice of Acceptance before install day. No form-fudging, no stamps from someone who never saw the property. Your insurer gets real documentation.

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
TruePane is an authorized installer for more than a dozen manufacturer lines, and for island customers we regularly quote PGT side by side on paper so you can compare laminated glass, frame material, and warranty terms without a sales pitch. We maintain local parts inventory for the lines most commonly found in Key Biscayne condos, which means fewer trips across the causeway and faster turnaround when a sash or hardware set needs replacing. If your building standardizes on a specific manufacturer line, we match it.
Common Impact Windows & Doors Problems We See in Key Biscayne Homes
- Salt-driven seal failure in original aluminum frames. Key Biscayne’s dual-exposure salt air from Biscayne Bay and the open Atlantic corrodes aluminum frames and hardware up to twice as fast as installations five miles inland on the Miami mainland. Once the seal breaks, wind-driven rain gets in and the unit loses its impact rating.
- Sash sag and jamb separation on aging sliding glass doors. We see this constantly in 1960s through 1980s condo towers. The hardware corrodes, the sash drops out of alignment, and the locking mechanism stops engaging. That door is no longer protecting anything.
- Non-compliant single-pane and jalousie windows. Original windows from before the 1992 code overhaul fail Miami-Dade impact-glazing requirements. Condo associations are enforcing retrofits, and insurers are sending non-renewal notices over exactly this.
- Water intrusion around improperly flashed openings. On a barrier island with rain coming sideways off the ocean, flashing mistakes show up as stained drywall and rotted jambs within a season or two. We pull the trim, inspect the rough opening, and correct the flashing before the new unit goes in.
The specific failure we run into most on Key Biscayne is salt corroding the frame channel along the jamb until the sash no longer seats square against the weatherstripping. That gap is where wind-driven rain enters. Fixing it requires more than a new sash, the frame channel itself needs to be replaced or the seal will fail again within a few years. On a barrier island with this salt load, we treat frame condition as the primary inspection point before any impact window or door goes in.
The Key Biscayne Playbook: Older Homes, Code Upgrades, and One Causeway
Key Biscayne is a barrier island flanked by Biscayne Bay to the west and the open Atlantic to the east. Every structure sits in a dual-exposure marine salt-air environment, one of the most corrosive in the continental United States. That alone makes this market categorically different from any mainland Miami neighborhood across the Rickenbacker Causeway. Frames, hardware, and seals corrode measurably faster here. When a contractor opens up an older island home or condo for impact windows, what they find underneath is usually the real scope of work: rotted framing, failed waterproofing, and rough openings that are no longer square.
Here is how we handle it. Inspection first. Before we quote, we open a sample opening to check the condition of the framing, flashing, and subsill. If there is rot or salt damage behind the old frame, we write an allowance into the contract so the cost is on paper before any work starts. If a surprise comes up once walls are open, we price it and get your written approval before touching it. No change orders that show up on the final bill like a shadow. And any permit we pull on Key Biscayne triggers Miami-Dade code review, which can mean upgrading adjacent openings or bringing the entire glazing package up to current wind load standards. We walk you through every code citation and line item, and we schedule around Rickenbacker Causeway traffic because flatbed deliveries of large impact units cannot sit in bridge congestion without risking the glass.
Our crew replaced a failed insulated glass unit in a 1970s Commodore Club condo where the original aluminum sliding glass door had years of salt-driven seal failure along the jamb. We pulled the sash, confirmed the framing was still square, and installed a new Miami-Dade NOA impact-rated unit with low-E glass and argon fill. The homeowner saw an immediate drop in hallway humidity, and the building engineer signed off on the wind mitigation form without a single correction. That is the standard we hold on every Key Biscayne job.
Pricing for Impact Windows & Doors in Key Biscayne, FL
On Key Biscayne specifically, a single impact window installed typically runs $1,800 to $3,400 for standard sizes and up to $6,500 for large floor-to-ceiling openings with laminated glass and stainless hardware. Impact sliding glass doors land between $6,000 and $14,000 depending on track length, glass package, and whether the old frame channel needs full replacement. A full condo retrofit in an older tower like Ocean Club or Commodore Club generally falls between $22,000 and $58,000 for the complete glazing package, including permits and wind mitigation documentation. Entry and French door impact units run $7,500 to $16,000, and impact garage doors typically land between $4,800 and $9,500.
What moves the price: the condition of the rough opening once we pull the old frame, whether adjacent openings must be brought up to current code as part of the permit, and the manufacturer line you choose. We quote PGT, Simonton, and Jeld-Wen side by side on paper so you see exactly what each line costs, what the warranty covers, and how long each duration runs. Both warranty layers get registered in writing before our truck leaves the driveway. And seniors and veterans receive a permanent 5% discount on every job, no expiration. Call (954) 507-3613 and we will schedule a free estimate with a technician who measures twice and prices once.
We Also Serve Cities Near Key Biscayne
TruePane crews serve Key Biscayne directly, with local staging for large impact packages before a single existing frame is broken. We also cover Miami across the causeway and Coral Gables for homeowners who want the same written warranty standard and the same Done Right Promise. Wherever the job is, a live person answers the phone.
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
Yes. Every impact window and door installed on Key Biscayne must carry a Miami-Dade County Notice of Acceptance, which is the strictest product-approval standard in the nation. Key Biscayne sits in Evacuation Zone A with extreme hurricane exposure, and condo associations and insurers on the island enforce NOA compliance without exception. We pull the NOA documentation for every unit before it leaves our warehouse and include it with your permit package. Call (954) 507-3613 to get your existing glazing checked against current NOA requirements, estimates are free.
Salt air on Key Biscayne corrodes window frames and hardware up to twice as fast as installations five miles inland on the Miami mainland because the island is exposed to salt spray off both Biscayne Bay and the Atlantic simultaneously. That means aluminum frames, hinges, and rollers that might last 20 years inland can start showing pitting and seal failure within 8 to 12 years here. We specify fusion-welded frames and stainless or marine-grade hardware as the baseline for every Key Biscayne install, not as an upgrade. For an exact quote on replacing corroded hardware, call (954) 507-3613.
We can, and we do it routinely. The Rickenbacker Causeway is the only way on and off Key Biscayne, and flatbed deliveries of large impact units cannot sit in bridge congestion without risking the glass. We stage all windows and doors on-island before breaking a single existing frame, and we schedule delivery windows around rush hour and causeway closures. A closing order ahead of a named storm can strand a half-installed job, so we never start an install we cannot finish with materials already on the island. Call (954) 507-3613 to schedule around your building’s specific service elevator and causeway windows.
Opening up an older Key Biscayne home for impact window replacement can trigger Miami-Dade code requirements that go beyond the window itself, including bringing adjacent openings up to current wind load standards and correcting any structural or waterproofing deficiencies found behind the old frames. That is the single biggest reason a project quote moves, so we handle it by inspecting first, writing allowances into the contract for known code upgrades, and pricing any surprise condition in writing with your approval before work continues. You never get a change order you did not sign off on. Call (954) 507-3613 and we will walk through exactly what your permit will trigger.
Replacing impact windows in a Key Biscayne high-rise condo typically takes three to five weeks from permit approval to final inspection, depending on the number of openings, building service elevator access, and whether the condo association requires phased installs by floor. We coordinate directly with building management on Key Biscayne for staging, crane or freight elevator scheduling, and insurance certificates. Most individual unit retrofits in towers like Commodore Club and Ocean Club complete within four weeks once materials are staged on-island. Call (954) 507-3613 for a timeline specific to your building.
Get a Free Written Estimate in Key Biscayne
If you live on Key Biscayne and your windows or doors are original to the 1960s, 1970s, or 1980s, you are likely carrying the exact glazing that insurers and condo boards now reject. The fix does not have to be a punch list of surprises. We inspect the rough openings, write the scope and allowances down in plain language, and quote manufacturer lines side by side so you can read the difference. Dale Kessler’s rule still governs every job we run: if the pane is not true, the job is not done. Call (954) 507-3613 to schedule your free estimate. A live person answers, and the quote is in writing before you spend a dollar.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Biscayne and South Florida. Email corrected.
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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