Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
PGTCGI
Before
After
Before
After
Before
AfterFast, Reliable Impact Windows Across Key Biscayne
Impact windows in Key Biscayne run $800 to $1,500 per window installed for most standard openings, with whole-home packages typically landing between $8,000 and $25,000 depending on opening count and floor height. That’s the honest range before we measure anything. Every home and condo on the island sits inside Miami-Dade’s High-Velocity Hurricane Zone, which means your windows carry a load rating no mainland product can skip, and every replacement on Key Biscayne must hold a Miami-Dade Notice of Acceptance. We’re Impact Windows specialists who’ve done this work on Crandon Boulevard, around the Village, and in the bayfront towers for over 15 years. Call (863) 656-0462 and a live person answers, day or night.
Winslow Windows & Doors is owned by Ed Winslow, and Ed’s name is on every job we touch in Key Biscayne. We’re not a call center. Not a national chain that hands you a ticket number. We’re the local crew that knows what salt air does to a window jamb on this island, and we write that knowledge into every quote.
Why Winslow Windows & Doors Is Key Biscayne’s Preferred Impact Windows Company
Key Biscayne homeowners don’t have the luxury of buying windows that merely meet code. The island’s salt environment and condo approval process punish vague specs and generic installers. We’ve spent years working inside buildings along Crandon Boulevard and the bayfront, dealing directly with association boards, Miami-Dade inspectors, and the marine hardware requirements this island forces on every opening. That local knowledge changes what gets ordered, how it’s priced, and how long the job takes.
Our Key Biscayne customers call a published phone number and get a person. Every technician who arrives at your door is background-checked and in uniform, so you know exactly who’s on your property before the handshake. Ed Winslow owns the company, publishes his address and license number, and stands behind every install with the 36500-Day Done Right Promise. If it’s not done right, we come back and make it right. No fine print. No expiration.
We hold a strong local reputation on Key Biscayne, and the calls we get from repeat customers and referrals tell the story better than any number we could print. Homeowners here know each other. Someone on your floor got burned by an installer who disappeared after the warranty card was signed. We hear it all the time. That’s why our pricing is upfront, our estimates are free, and our workmanship carries a transferable warranty.
Our Impact Windows Services in Key Biscayne
Impact Window Installation
Full replacement installation on Key Biscayne means more than swapping glass. We pull permits, submit NOA documentation for every opening, and coordinate with your condo association when required. Buildings along Crandon Boulevard and around the Village often carry original 1960s to 1980s single-pane aluminum windows that are decades past useful life. We replace them with impact-rated units that meet current HVHZ code, installed by crews who understand this island’s corrosion profile.
Impact Window Replacement
Replacing a failed or outdated window in Key Biscayne frequently uncovers rusted steel reinforcements, hardened gaskets, and sealant that gave up years ago. We spec marine-grade stainless hardware and laminated glass interlayers on every replacement, because the same aluminum frame that works fine in Coral Gables will corrode out here in roughly half the time. We handle the full removal, disposal, install, and trim, and we leave the opening sealed against wind-driven salt spray from the Atlantic and the Bay.
Custom Millwork and Cabinetry
High-end homes on Key Biscayne don’t accept a standard window jamb extension and call it done. Our custom millwork and cabinetry team builds exact frame and sill integration for the architectural profiles found in bayfront properties and upscale single-family homes. When a designer or architect draws a specialty trim detail, we match it in material and finish so the window reads as original to the home, not an afterthought.
Architectural Glass and Specialty Finishes
Condominium associations on Key Biscayne frequently mandate exact frame colors and glass tint levels to preserve uniform street-facing appearance. We source architectural glass and specialty finishes to those specs, including Low-E insulated glass units and custom powder-coat frame colors. If your building requires a specific tint or finish, we order to that specification and provide the documentation your board wants to see before installation.
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.
Trusted Brands We Service in Key Biscayne
Winslow Windows & Doors is an authorized installer for eight premium brands, and on Key Biscayne we lean heavily on PGT and CGI for impact glazing because their laminated glass interlayers and marine-grade hardware hold up to what this island throws at them. We also install ES Windows, ECO Window Systems, and Therma-Tru entry doors when the project calls for them. We keep a local stock of common replacement parts for Key Biscayne customers, which shortens turnaround on repairs and warranty work. You’ll never hear us push a brand we don’t install. You’ll get a straight recommendation based on your opening, your HOA spec, and your wind zone.
Common Impact Windows Problems We See in Key Biscayne Homes
- Salt-air corrosion inside aluminum frames. Key Biscayne’s 360-degree saltwater exposure attacks steel reinforcements within a decade, silently voiding the impact rating long before the glass shows any wear. By the time rust streaks appear on the frame, the structural spine is already compromised.
- Hardened gaskets and failed seals. Constant humidity and salt spray harden rubber gaskets and break down sealants much faster here than on the Miami mainland. A window that looks fine from inside may be leaking air and water around the edges right now.
- Original single-pane windows with no large-missile rating. Many 1960s to 1980s condo towers along Crandon Boulevard still carry the builder’s original aluminum single-pane windows. They fail current HVHZ impact standards and are now a code-compliance and insurance problem, not a cosmetic one.
- HOA-mandated tint and frame color mismatches. A code-compliant impact window can still be rejected by a Key Biscayne condo board because the manufacturer’s standard tint or frame color doesn’t match the building’s uniform spec. That forced custom finish adds weeks to lead times and makes planning ahead essential.
Pricing for Impact Windows in Key Biscayne, FL
We write line-item quotes in Key Biscayne, and the price we quote is the price you pay. No change orders, no surprises, no ambiguous allowances. A standard impact window in this market runs $800 to $1,500 installed, impact single-hung units land between $900 and $1,800, and large or custom openings on bayfront homes run $2,500 to $5,000. Whole-home packages typically fall between $8,000 and $25,000, driven by opening count, floor height, and how complicated the HOA approval gets.
Key Biscayne specifically pushes prices toward the upper end of those ranges for one reason: marine-grade stainless hardware and corrosion-resistant frame treatments aren’t optional here. We don’t quote a mainland Miami spec and hope it survives. Call (863) 656-0462 and we’ll schedule a free in-home measure and written quote. No trip charge inside our home county, and we’ll give you a free second opinion on any written estimate you’ve already received.
What Impact Windows Costs in Key Biscayne
Let’s break this down in plain numbers. Standard impact windows: $800 to $1,500 per window installed. Impact single-hung: $900 to $1,800. Large or custom openings, including architectural shapes and bayfront picture windows: $2,500 to $5,000. Whole-home packages, which is what most Key Biscayne condo replacements turn into: $8,000 to $25,000 or more depending on the building.
What moves the price on Key Biscayne specifically? First, wind zone. Every opening on this island sits inside the HVHZ, which demands the highest Miami-Dade NOA-rated products. Second, floor height. Higher floors on Crandon Boulevard condo towers require larger wind-load design pressures, which pushes glazing and frame specs up. Third, frame material. Aluminum with marine-grade stainless hardware costs more than inland-grade aluminum, and it’s what this island demands. Fourth, the HOA. If your association requires a custom tint or frame color, that’s a non-standard order. Non-standard orders take longer and cost more.
We give you a free in-home measure and a written, line-item quote before you commit to anything. That quote stays fixed from the day you sign it.
Florida Pays You Back
If you own a home in Key Biscayne, there’s real money available for impact windows, and the stack is worth understanding. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades. Florida exempts impact-resistant windows and doors from sales tax. The federal 25C energy credit covers 30 percent of product cost up to $600 per year on qualifying units. And after a wind-mitigation inspection, many insurers credit around 25 percent on the windstorm portion of your premium.
We don’t guarantee any of these numbers. Programs change, insurers set their own rates, and your eligibility depends on your specific property. What we do is provide the documentation and product specifications your inspector, insurer, and grant program need. We’ve walked enough Key Biscayne homeowners through this process to know exactly what paperwork gets asked for.
One comparison worth making: impact windows versus hurricane shutters. Shutters only protect you if someone is home to deploy them, they don’t block UV, and they don’t do anything for your cooling bill or your insurance. Impact windows are permanent protection, always in place, and they improve the building envelope year-round. We install impact windows. We do not install shutters, but we’re happy to explain the difference.
We Also Serve Cities Near Key Biscayne
Winslow Windows & Doors handles Impact Windows in Key Biscayne every week, and we also run crews to Miami Beach, Miami, Coral Gables, and North Miami Beach. If you’re on the island or just across the Rickenbacker, the same live-answer phone, the same local crews, and the same ironclad pricing apply. Call (863) 656-0462.
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 in Key Biscayne
Key Biscayne is a barrier island completely surrounded by saltwater, and that means salt-laden air and spray attack your window frames, hardware, and seals from every direction, all day, every day. Aluminum frames oxidize, steel reinforcements rust from the inside, and rubber gaskets harden and crack in roughly half the time the same product would last in Coral Gables or the Miami mainland. This is why marine-grade stainless hardware and corrosion-resistant frame treatments are non-negotiable on this island. Call (863) 656-0462 for a free inspection of your existing windows before the corrosion gets structural.
Yes, and they regularly do. On Key Biscayne, every window replacement in a condo building faces a two-track approval: a Miami-Dade building permit with NOA documentation plus written condo association approval. Most associations specify exact frame colors and glass tint levels to preserve the building’s uniform street-facing appearance. A product that passes HVHZ code can still be rejected by the board over a tint mismatch, which adds weeks to the timeline. We’ve navigated this process on Crandon Boulevard buildings many times and we handle the paperwork for you. Call (863) 656-0462 to start the process early.
Yes, and measurably so. Low-E insulated glass units reflect solar heat while letting light through, which matters on an island where the sun hits you from the sky, the water, and the white-painted concrete around you. Homeowners in Key Biscayne who replace original single-pane windows with Low-E insulated impact glass typically see lower cooling bills and fewer hot spots near windows. It also qualifies for the federal 25C energy credit. We’ll spec the right Low-E coating for your orientation and your HOA’s tint requirements. Call (863) 656-0462 for a free quote.
The schedule on Key Biscayne is driven by lead times, not labor. Between custom fabrication runs of four to six weeks for non-standard sizes, HOA approval cycles that can add three weeks or more, and Miami-Dade permit processing, the calendar fills up before a single unit arrives. Our crews install most standard openings in as fast as a single day once the units are on site. But the ordering and approval chain takes the time it takes, and we’re honest about that from the first conversation. Call (863) 656-0462 and we’ll give you a realistic timeline for your building.
In nearly every case, full replacement is the right call. The original single-pane aluminum windows from that era lack today’s large-missile impact rating, so they fail HVHZ code and leave the building envelope vulnerable. Retrofitting impact glazing into 50-year-old frames that have been corroding in salt air for decades doesn’t restore the structural rating, because the frame and its internal steel reinforcements are the weak points. Many insurers now refuse coverage without full replacement. Call (863) 656-0462 for an honest assessment of what your building actually needs.
This Key Biscayne page exists because a generic Miami impact-window page doesn’t tell you what you actually need to know. Dual salt-air corrosion changes the product spec. HVHZ condo-approval rules change the lead time and the price lock. If you’re on Crandon Boulevard, in the Village, or anywhere on the island, you need a crew that understands what this barrier island does to windows, and how to navigate the approvals that come with them.
Winslow Windows & Doors is locally owned by Ed Winslow. Published address. Published license number. Live person on the phone 24/7. Background-checked, uniformed technicians. Upfront pricing on every quote, a permanent 10 percent discount for seniors and veterans, $40 off any repair over $200, and a free second opinion on any written estimate. The 36500-Day Done Right Promise backs every install.
Call (863) 656-0462 to schedule your free estimate. The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Key Biscayne and surrounding communities.
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.