Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Key Biscayne, FL
Window and door work in Key Biscayne comes down to one unavoidable fact: salt air and hurricane wind loads punish ordinary products faster here than almost anywhere else in South Florida. Juniper Windows & Doors helps Key Biscayne homeowners replace and install windows and doors that are built for that environment, with a written price locked in before any work starts. If you’re weighing window replacement, a full installation, or a new entry door, call (682) 281-2168 and we’ll walk you through what your home actually needs.
Why Key Biscayne Homes Are Different
Key Biscayne sits on a barrier island between Biscayne Bay and the Atlantic, which means every window and door on the island faces two relentless forces: salt-laden wind off the ocean and full exposure to storm-driven rain during hurricane season. Aluminum frames that survive for decades inland will pit and corrode here in a fraction of that time. Wood frames fare even worse. Most homes on the island, from Harbor Point to the older sections near Crandon Boulevard, were built to earlier codes. That leaves homeowners replacing original single-pane glass and doors that don’t meet current Miami-Dade impact standards.
Village of Key Biscayne permit requirements are strict, and many condo associations around Crandon Park and the Ocean Club have their own approval layers before any window or door gets touched. The practical takeaway: Key Biscayne jobs run smoother when the company doing the work already knows how the village and the HOAs operate. We plan for both from the first site visit, so the written price you get includes the work as it will actually be permitted and approved, not a generic estimate that falls apart at the association’s front desk.
Our Main Key Biscayne Services
Most Key Biscayne homeowners reach out to us for one of three jobs, and each has enough local nuance that we’ve given it a dedicated page.
Window Replacement in Key Biscayne
Replacing windows here usually means pulling out corroded aluminum or tired single-pane glass and putting in impact-rated units that hold up to salt air and hurricane season. Homes on Key Biscayne often have custom opening sizes, especially in the older buildings near the village center, so a proper replacement starts with measuring every opening rather than assuming a stock size will fit. If your current windows fog between the panes, bind when you open them, or let sea air whistle through, Window Replacement in Key Biscayne goes over what the job involves and what it typically costs.

Window Installation in Key Biscayne
New construction and major renovations on Key Biscayne have their own window installation challenges: rough openings sized for impact systems, moisture management under brutal coastal conditions, and inspectors who know exactly what they’re looking for. We install to current Miami-Dade wind-load requirements, which is not a detail you want discovered after drywall goes up. For homeowners building or remodeling on the island, Window Installation in Key Biscayne covers the full scope, from rough opening to final trim.

Door Replacement in Key Biscayne
Entry doors on Key Biscayne take a double hit: direct sun on the east side and salt spray on the west-facing canal side, with storm pressure testing the hardware every season. A door replacement here isn’t just a slab swap. It’s about the frame, the threshold seal, the hinges, and the latching hardware, all working together under wind load. If your door sticks, lets light through the weatherstripping, or wouldn’t hold up to a serious storm, Door Replacement in Key Biscayne explains what we replace and how we price it.

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.
Brands We Service in Key Biscayne
We service and install PGT, CGI, CWS, and ES Windows products across Key Biscayne. Because we stock replacement parts and hardware for these lines locally, we can handle warranty work and repairs without the weeks-long wait that comes from ordering through a distant distributor. Browse the full product breakdown on our brands page.
Pricing for Window Company in Key Biscayne, FL
| Service | Typical range in Key Biscayne |
|---|---|
| Window replacement (single window) | $800 – $2,400 |
| Window replacement (whole home) | $12,000 – $38,000 |
| Window installation (new construction, per window) | $500 – $1,800 |
| Door replacement (exterior, slab only) | $900 – $2,800 |
| Door replacement (exterior, full frame and threshold) | $2,500 – $6,500 |
| Impact-rated window upgrade | adds $500 – $1,200 per window |
| Salt-corrosion repair (frame and hardware) | $350 – $900 per unit |
| HOA compliance survey and documentation | $250 – $500 |
Two things push Key Biscayne prices toward the top of those ranges: impact-rated glass, which is mandatory for most openings, and custom sizing on older island homes. Every Juniper job gets a written price before work begins, so the number in your quote is the number on your invoice.
Neighborhoods We Serve in Key Biscayne
We work across the full island. The neighborhoods below are where we spend most of our time, but if you’re within Key Biscayne’s boundaries, we cover it. Crews scheduled through our South Florida office typically reach most island addresses within a day or two, and we coordinate with condominium front desks when needed.
- Harbor Point
- Crandon Park
- The Ocean Club area
- Village center and Crandon Boulevard corridor
- Cape Florida area
Service Area – Cities Near Key Biscayne
While this page focuses on Key Biscayne, our South Florida team also schedules work on the mainland. If you’re across the Rickenbacker, see our pages for Miami, FL, Miami Beach, FL, Coral Gables, FL, and Hialeah, FL. Same written-price guarantee, same product lines, same crew standards.
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 Window Company in Key Biscayne
Most Key Biscayne estimates are scheduled within a few days, and crews working on the island can often combine an estimate with another nearby visit. Call (682) 281-2168 and we’ll give you a specific day, not a four-hour window. Every estimate includes a written price before you decide anything.
Yes. We pull permits for work that requires them from the Village of Key Biscayne and prepare the documentation most island condo associations request before approving window or door changes. The permit fees and HOA package work are itemized in your written quote, so there’s no surprise line item later.
No. That’s the entire point of our written-price commitment. If we find hidden damage after a window or door comes out, we stop and show you what we found, then give you a new written price for the additional scope. You approve it or you don’t. The original number doesn’t move unless you agree to change it in writing first.
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
"Front door looks great and shuts well. The threshold is sealed well and the lock lines up with the strike."
- Rory F."Quote came in the app with options for glass. Easy to compare."
- Vera L."Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."
- Neil B.










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