Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindows & Doors Services in Key Biscayne, FL
If your Key Biscayne condo still has original jalousie windows or single-pane aluminum frames from the 1970s, you’re not just losing cool air. You’re carrying windows that Miami-Dade County no longer considers code-compliant, and your insurer knows it. We replace them with Miami-Dade NOA-approved impact windows and doors built for a barrier island that takes every storm head-on. Call (904) 478-8983 and talk to a live person, any hour. Ed Winslow owns this company, and his word backs every install.
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 Biscayne Homeowners Choose Winslow Windows & Doors
Key Biscayne isn’t a place where you gamble on contractors. The island is small, word travels fast across the Village and the condo buildings along Crandon Boulevard, and a bad install gets remembered for a decade. That’s why our reputation here is built on showing up when we say we will, giving you a written line-item price before work starts, and never leaving a job until it’s right. We’ve replaced windows and doors in buildings from the Towers of Key Biscayne south to Mashta Island, and we know what the salt air does to frames, hinges, and weep covers. Ed Winslow’s name is on the door, and on every job we do. Our techs are background-checked and arrive in uniform, so you know exactly who’s at your door before they knock.
We answer the phone. That sounds small until you’ve spent two days chasing a national chain’s call center. Call us at 2 a.m. in August when a window leaks during a squall, and a real person picks up. Not a voicemail loop. Not a ticket number. Ed built the company that way in 2011, and it hasn’t changed.
Windows & Doors Services We Offer in Key Biscayne
Impact Windows
Impact windows are the flagship line for Key Biscayne, and for good reason. The island sits inside Miami-Dade’s High Velocity Hurricane Zone, which mandates the strictest impact-rated glazing standards in the United States. Every unit we install carries Miami-Dade NOA or Florida Product Approval for its exact configuration, with design pressures matched to each opening. We install laminated impact glass from brands including CWS and ES Windows. No panel hanging, no storm-prep scramble. The protection is permanent.
Learn more about our Impact Windows in Key Biscayne.
Window Installation
Proper installation on a barrier island means marine-grade fasteners, sealed rough openings, and frames that can stand up to decades of salt spray. We install windows in Key Biscayne condos and single-family homes with the same attention to detail, whether it’s a third-floor unit or a waterfront house on Harbor Drive. Your windows are only as good as the team that puts them in.
Learn more about our Window Installation in Key Biscayne.
Window Replacement
If your Key Biscayne home still has jalousie windows, you’re carrying units that are uninsurable and out of compliance with current HVHZ code. We replace them with impact-rated, energy-efficient windows sized for your existing openings. The retrofit work that’s been picking up across the island since Irma is exactly what we do every week.
Learn more about our Window Replacement in Key Biscayne.
Door Installation
Entry doors on Key Biscayne take a beating from salt-laden wind and direct Atlantic exposure. We install impact-rated doors from Therma-Tru, plus composite and fiberglass options that hold their finish and seal in a marine environment, as part of our Key Biscayne Door Installation service. A door that looks fine on the outside can be quietly corroding inside the frame. We catch it before it fails.
Sliding Glass & Patio Doors
Sliding glass doors are the primary wall on many Key Biscayne condos and waterfront homes. We install Key Biscayne Sliding Glass & Patio Doors that ride smooth and seal tight, matched to your opening’s design pressure. Salt corrosion on rollers and tracks is the number one failure point we see out here, and our installs use hardware built for it.
Energy-Efficient Windows
Heat gain through old glass is a real cost on a sun-blasted island. Energy-Efficient Windows in Key Biscayne that we install can cut cooling load by 20 to 30 percent in this climate, especially on west-facing elevations that bake through the afternoon. You’ll feel the difference the first week, and your AC unit will notice too.
Impact Garage Doors
Garage doors are the largest opening in many Key Biscayne homes, and an unrated door is a structural liability in a hurricane. We install Impact Garage Doors - Key Biscayne engineered for HVHZ wind loads, with reinforced tracks and bracing that keeps the door in place when the storm pressure spikes.
Custom & Geometric Windows
Some Key Biscayne homes have window shapes you won’t find at a big-box store. Arched transoms, trapezoids, radius corners. We fabricate custom and geometric impact windows to exact dimensions, keeping the character of your home while bringing it up to Miami-Dade code. Brands include ECO Window Systems and Mr-Glass for specialty configurations.
Roof Repair
Roofs on Key Biscayne take the same salt and storm abuse your windows do. We repair leaks, replace damaged tile or shingle sections, and fix flashing before water finds its way into your walls. The connection between a failed roof penetration and a damaged window frame is closer than most people think. We inspect both.
Roof Replacement & Installation
When a roof on Key Biscayne is past the point of patching, we replace it. Shingle, tile, or metal, tied into the same structural envelope as your windows and doors. A roof that’s Miami-Dade compliant but tied to old non-impact windows is still a weak point, and we address the whole exterior.
Shingle, Tile & Metal Roofing
Key Biscayne homes span a wide range of roof types. We install shingle, tile, and metal roofing systems, all meeting Miami-Dade wind uplift requirements. Salt spray is hard on metal flashing and fasteners, and we specify materials that won’t degrade on schedule ahead of the mainland.
Neighborhoods We Serve in Key Biscayne
We work across the entire island, from the condominium canyons of Crandon Boulevard to the waterfront enclaves of Mashta Island and the single-family streets near the Village. Typical response time for an estimate on Key Biscayne is same-day or next-day, and roofing or large window projects get scheduled within a week in most cases.
- The Village - the commercial and residential heart of Key Biscayne, with a mix of older condos and newer townhomes.
- Mashta Island - waterfront homes with direct bay or ocean exposure and aggressive salt spray.
- Crandon Boulevard corridor - the island’s main condo spine, much of it built between 1960 and 1985.
- Harbor Drive / West Side - bay-facing properties with sliding glass doors that open directly to salt air.
Why Key Biscayne’s Climate & Housing Affect Windows & Doors
Key Biscayne is a true barrier island, completely surrounded by saltwater. The Atlantic is on one side, Biscayne Bay on the other. Every window frame, hinge, lock, and weep cover on this island sits in a salt-spray environment more aggressive than any beachfront property on the mainland. Aluminum frames corrode years ahead of typical coastal schedules. We regularly see frames that look presentable from the inside but are structurally compromised inside the wall cavity.
The island’s housing stock compounds the problem. Most condos along Crandon Boulevard and the waterfront were built between the 1960s and 1980s, and many still carry original single-pane aluminum frames or jalousie louvered units. Those windows are not just outdated. They are uninsurable and out of compliance with Miami-Dade HVHZ code. After Hurricane Irma’s direct hit in 2017, local insurers ramped up non-renewal notices on properties without verified NOA-approved impact replacements. The retrofit demand on Key Biscayne is not optional. It’s a question of when, not if.
There’s also the wind reality. Key Biscayne sits in the primary Atlantic hurricane strike corridor with no upstream landmass to slow down a storm. Full Large Missile Impact compliance matters here in a way it doesn’t even ten miles inland. When we spec windows for a Key Biscayne property, design pressures are matched to each opening, and we never rate a unit above +/-100. The numbers have to be right, because the next storm will test them.
Pricing for Windows & Doors in Key Biscayne
Honest pricing matters to Ed, and it matters to anyone who’s been burned by a contractor who changed the number after work began. Here’s where Key Biscayne pricing typically lands:
| Item | Typical Range |
|---|---|
| Impact window (standard size, Miami-Dade NOA) | $950-$2,100 per opening installed |
| Impact sliding glass door (6-foot, HVHZ rated) | $3,500-$6,500 installed |
| Impact entry door (Therma-Tru or similar) | $2,800-$5,200 installed |
| Jalousie-to-impact retrofit (per opening, including framing) | $1,200-$2,600 |
| Impact garage door (16-foot, HVHZ rated) | $4,500-$9,000 installed |
| Custom or geometric impact window | $1,800-$4,500 per opening |
These are honest ranges, not bait. Custom fabrication on non-stock sizes typically runs 4 to 6 weeks before install. Every quote is line-itemed. If the scope doesn’t change, the price doesn’t change. That’s a promise. Call (904) 478-8983 and we’ll put it in writing.
Florida Pays Key Biscayne Homeowners Back
Key Biscayne homeowners have several ways to offset the cost of impact windows and doors. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades. Florida also exempts impact-resistant windows and doors from sales tax. On the federal side, the 25C energy credit covers 30 percent of product cost, up to $600 per year, on qualifying energy-efficient units. And after a wind-mitigation inspection ($75 to $150), many carriers credit an average of 25 percent off the windstorm portion of your premium. Programs change and carriers set their own final numbers, but the stack is real. Call us and we’ll walk you through what applies to your specific Key Biscayne property.
Service Area - Cities Near Key Biscayne
Winslow Windows & Doors serves Key Biscayne and the surrounding South Florida communities, with dispatch coordinated from our Miami office. If you own property nearby, we can help there too. See our service details for Miami Beach, Miami, and Coral Gables.
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 About Windows & Doors in Key Biscayne
Standard impact windows in Key Biscayne typically run $950 to $2,100 per opening installed, depending on size, frame material, and design pressure rating. Jalousie retrofits with framing work land higher, and custom shapes go up from there. Get an exact quote by calling (904) 478-8983. Estimates are free.
Jalousie windows are out of compliance with Miami-Dade HVHZ code and have become effectively uninsurable on Key Biscayne since insurers tightened underwriting after Hurricane Irma. The louvered glass panels don’t seal, don’t resist wind pressure, and don’t meet Large Missile Impact standards. Replacement is the practical fix, and we do it regularly across the island’s older condo buildings.
Yes. Key Biscayne falls within Miami-Dade County’s High Velocity Hurricane Zone, which requires windows and doors to carry Miami-Dade Product Control Notice of Acceptance or Florida Product Approval. Standard Florida Building Code compliance is not enough here. Every impact unit we install in Key Biscayne meets the NOA standard for its specific configuration.
No. We give you a written line-item quote before any work begins, and if the scope doesn’t change, the price doesn’t change. No change orders, no surprise add-ons. That’s the way Ed has run Winslow Windows & Doors since 2011. Call (904) 478-8983 to get your number in writing.
Once your custom units arrive, typical installation runs as fast as a single day for standard openings. Fabrication for non-stock sizes runs 4 to 6 weeks. Larger whole-condo retrofits take longer, and we’ll give you a schedule before we start. Call (904) 478-8983 for a timeline specific to your property.
Written by Ed Winslow, Owner at Winslow Windows & Doors. Ed founded Winslow Windows & Doors in 2011 and has spent over 15 years installing impact-rated windows, doors, and roofing across South Florida. The one down the road.
Six Reasons Homeowners Choose Winslow 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 Winslow Windows & Doors Services
What Neighbors Say About Winslow 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 Biscayne Customers Say
"We sat out a hurricane behind the windows Ed put in. The gusts threw a neighbour's trampoline down the street and the loudest thing in our house was the kettle. I rang him after to say thank you and he answered his own phone, same as always."
- Thaddeus Okonkwo"Ed measured every opening himself and walked me through the product approval paperwork before I signed anything. When the inspector came he found the notice of acceptance taped inside a window like it should be and passed us first visit."
- Rosalind Beaumont"A tile roof repair and new windows from the same company meant one crew, one permit runner, and nobody blaming the other trade. Ed checked the roof work himself before the tarp came off."
- Henrietta Pemberton