Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in Key Biscayne, FL
Westlight Windows & Doors is the window company Key Biscayne homeowners call when salt air, hurricane codes, and aging aluminum frames have made window and door decisions more complicated than they should be. We install replacement windows and doors that carry Miami-Dade Notice of Acceptance approvals, because on a barrier island flanked by the Atlantic and Biscayne Bay, a product that passes code in Orlando doesn’t pass inspection here. Call (903) 354-7134 for a written, line-item price before any work starts.
Why Key Biscayne Homes Are Different
Key Biscayne is a true barrier island, and that single fact changes every window and door decision a homeowner makes. Salt-laden air attacks frames from both sides at once: Atlantic spray from the east, bay humidity from the west. We regularly see aluminum frames on 1960s-era condos along Crandon Boulevard so corroded that the frame anchors no longer meet post-Hurricane Andrew structural attachment requirements. The older stock, much of it mid-1960s to early-1990s low-rise condos and single-family homes, still carries original jalousie or single-pane slider windows. Those units almost always need full buck replacements rather than insert installations, because the surrounding sub-frame has rotted from decades of double-sided salt exposure.
Then there’s the code layer. Every replacement window and door installed in Key Biscayne must carry a Miami-Dade Notice of Acceptance, the strictest product-approval standard in the country. Design pressure ratings must account for unobstructed Atlantic hurricane-force winds with zero mainland buffer, including the highest Large Missile Impact and cyclic-pressure requirements in the Miami-Dade protocol. If a product isn’t NOA-approved, it isn’t legally installable here, no matter what it says on the box.
Our Main Key Biscayne Services
Two jobs dominate the calls we get from Key Biscayne: full-frame window replacement on older condos and single-family homes, and door installations that have to survive both hurricane wind loads and constant salt exposure.
Window Replacement in Key Biscayne
Most Key Biscayne window replacement work starts with the same question: can we save the existing frame, or does the sub-frame need to come out? On the island’s older condos and homes, salt corrosion frequently makes that decision for us. We remove the old unit, inspect the buck and framing, and install a NOA-approved replacement sized for Miami-Dade design pressure requirements. For a closer look at how we handle the island’s older housing stock, see Window Replacement in Key Biscayne.
Window Installation in Key Biscayne
New-construction and full-tear-out window installation in Key Biscayne means working to the highest Large Missile Impact standard in Florida. We install impact-rated PGT and CGI products on homes being rebuilt or remodeled, coordinating with building management when the job involves a condo or HOA-controlled building. The salt spray never stops, so flashing, anchoring, and sealing details matter more here than almost anywhere else in the state. See Window Installation in Key Biscayne for what a full installation involves.
Door Installation in Key Biscayne
Entry doors in Key Biscayne face the same salt-laden air as the windows, plus the brute force of storm winds that arrive with nothing between the island and the open ocean to slow them down. We install doors with rust-resistant hardware and NOA-approved impact ratings, matched to the exposure on the Atlantic side or the bay side of the island. Visit Door Installation in Key Biscayne for specifics on how we handle door installations here.
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 install and stand behind PGT, CGI, CWS, and ES Windows products, selected because they carry the Miami-Dade NOA approvals Key Biscayne requires. Parts and hardware are stocked through our South Florida metro office, which keeps lead times short when an association engineer needs a specific product approved. See our brands for the full range we service and install.
Pricing for Window Company in Key Biscayne, FL
| Service | Typical range in Key Biscayne |
|---|---|
| Aluminum window replacement (small bedroom) | $450 - $850 |
| Vinyl window replacement (standard bedroom) | $600 - $1,150 |
| Impact window replacement (single unit) | $950 - $2,400 |
| Full-frame window replacement with buck repair | $1,400 - $3,800 per opening |
| Jalousie window conversion to impact-rated unit | $1,100 - $2,800 |
| Entry door replacement (standard slab) | $750 - $1,800 |
| Impact-rated entry door replacement | $1,900 - $4,500 |
| Sliding glass door replacement (impact-rated) | $3,200 - $7,600 |
| French door replacement (impact-rated pair) | $4,100 - $8,900 |
| HOA-coordinated full-unit replacement (per opening, bulk pricing) | $1,100 - $3,200 |
In Key Biscayne, prices push higher when we have to remove a corroded frame and rebuild the buck before the new window goes in, or when an association engineer requires a specific product with a longer lead time. Whatever the number, you’ll see it in writing before work begins, and that price doesn’t change at the door.
Neighborhoods We Serve in Key Biscayne
We work across the full island, from the older condo corridors near Crandon Boulevard to the single-family streets toward the southern tip. Each area has its own mix of original 1960s-era stock and post-Andrew construction, which means the scope of a window project changes block by block.
- Crandon Boulevard corridor
- Harbor Drive area
- Mashta Island
- Ocean Club area
- West Enid Drive area
Service Area – Cities Near Key Biscayne
Our crews serve Key Biscayne through the South Florida metro office. If you’re researching window companies and comparing options, we also work in Miami Beach, FL, Miami, FL, Coral Gables, FL, and Hialeah, FL. Each area has its own code and corrosion patterns, and each gets the same written-price promise before any work begins.
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
A live person answers our phones 24 hours a day, 7 days a week, and scheduling for Key Biscayne is coordinated from our South Florida metro office. We’ll give you a specific arrival window and show up in it. Call (903) 354-7134 and you’ll get a person, not a voicemail box.
Yes. We work directly with building management and association engineers to get NOA-specific products approved before installation. For the older Crandon Boulevard-area condos now facing mandatory special assessments, we coordinate staging around the association’s timeline and the seasonal occupancy calendar.
Every Key Biscayne homeowner receives a written, line-item price before any work begins. The price we quote is the price you pay. If something fails within the guarantee period, we come back and fix it at no charge under our 365-Day Done Right Promise.
If you’re weighing options for windows or doors on the island, call (903) 354-7134 for a free estimate. We’ll give you straightforward answers, a specific date and window, and a price in writing before a single screw turns.
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
"Two bedroom windows that never opened and one that wouldn't stay up. All replaced in an afternoon. The crew was clean, hauled off the old frames, and the quote held."
- Colette Rhee"Got quotes from three companies. Westlight wasn't the cheapest but they were the only one who measured everything carefully and put it all in writing. Worth it. No surprises on install day."
- Craig Dillard"Our sliding patio door had come off its track years ago and we just lived with it. New one is smooth as butter. They hauled off the old one and vacuumed up before they left."
- Jessica Landry