New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Miami pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Window Replacement Across Key Biscayne
Window replacement in Key Biscayne isn’t a one-size-fits-all job, and any contractor who treats it that way is already in trouble. We work on barrier-island buildings, which means we deal with salt spray, high-rise wind loads, condo board approvals, and Miami-Dade NOA labels on interior doors that would surprise most mainland crews. If you’re in Key Biscayne and your windows whistle, fog, stick, or leak during an afternoon squall, call Westlight Windows Miami at (850) 753-2730. We’ll give you a written price before any work starts, and we’ll show up in the window we gave you. That’s the Kingswell Way, and it’s how we’ve done things since 2009.
Why Westlight Windows Miami Is Key Biscayne’s Preferred Window Replacement Company
We’re an independently owned and operated Kingswell location, led by Owen Satterfield. Owen has spent years walking the boardrooms and balconies of Key Biscayne’s condominium associations, learning exactly what gets a replacement approved and what stalls it. The answer is usually paperwork: a Miami-Dade NOA that matches the original opening’s design pressure rating. We handle that before we order the first window, because a $2,400 window is worthless if the association rejects it and you’re stuck with a restocking fee.
Our customers in Key Biscayne tend to tell us the same thing: they’ve been burned before. A contractor no-showed on a Saturday. A price jumped at the door. A seal failed six months after install and the phone number on the invoice was disconnected. That’s why we put every price and every promise in writing before a single screw turns. It’s why our technicians are background-checked and uniformed, so you know exactly who’s walking through your door. And it’s why our phone lines are staffed by a live person 24 hours a day, 7 days a week. No voicemail box. No chatbot. A real human who can schedule, answer questions, or dispatch help to Key Biscayne.
When you call to schedule a Window Replacement estimate, we’ll send a technician who knows the difference between a 1970s aluminum frame on Crandon Boulevard and a 2000s impact-rated build on Harbor Drive. That local knowledge matters. Salt corrosion doesn’t show up the same way in every building, and neither do condo board rules.
Window Glass Repair in Key Biscayne
Window glass repair in Key Biscayne usually means a failed insulated glass unit, or IGU. You’ll see fog or condensation trapped between the panes, and it won’t wipe off, because it’s inside the unit. On this island, the culprit is almost always salt. Salt-laden air attacks the sealant around the glass over the course of a few seasons, the seal fails, and the argon or krypton gas escapes. A glass-only repair on a standard residential window in Key Biscayne typically runs $180 – $420. On a high-rise floor with crane access or a specialty coating, it can climb to $550 or more, but you’ll get that figure in writing before we order anything.
IGU Replacement, Done Right
We can often save the original frame and replace only the glass unit. That matters in Key Biscayne, where condo boards often require the original frame profile to stay unchanged. We match the glass thickness, coating, and spacer bar to the original because mismatched glass can deflect under high-rise wind loads and fail again within a season.
Scratch and Impact Damage
Impact-rated glass can still be scratched or cracked by flying debris, and a small chip in laminated glass is not a cosmetic problem. It’s a structural weak point on an island that enforces wind-borne debris protection. If your window took a hit during a storm, don’t wait. We’ll assess whether the glass can be repaired or must be replaced whole, and we’ll tell you straight.
Window Pane Replacement in Key Biscayne
Window pane replacement in Key Biscayne is a single-pane swap: one sheet of glass replaced while the frame, sash, and hardware stay in place. Homeowners here reach for this when a pane cracks, shatters, or develops a visible seal mark, but the frame is still sound. A single pane replacement on a typical Key Biscayne condo or single-family home runs $150 – $380, depending on glass type and whether the opening is on the third floor or the thirtieth. High floors mean more setup time and more safety equipment, and that is reflected in the estimate, which you’ll always receive before any work begins.
Older Building, Older Glass
Key Biscayne’s housing stock is largely condominium buildings from the 1970s through the 2000s. Many of those original windows are not impact-rated by today’s code, and the glass is often thinner than what a modern design pressure calculation would require. A pane replacement is a good time to ask whether the opening should be upgraded to impact glass, especially if you’re already replacing a failed unit on a windward elevation.
Lead Times, Not Labor
On this tier of work, glass replacement is rarely a same-day job. Specialty laminated glass and custom coatings on Key Biscayne often carry a lead time of two to six weeks, depending on the manufacturer. The labor itself takes an afternoon. What matters is that the price is fixed in writing before we order. It is. That’s the Kingswell Guarantee: a written price before any work starts, a real arrival window, a clean job site, and a written guarantee on the completed work.
Trusted Brands We Service in Key Biscayne
We install and service eight manufacturer lines, and for Key Biscayne we lean hard on the impact-rated names: PGT, CGI, and CWS. These are the windows you’ll see specified on high-rise retrofits and single-family rebuilds from Mashta Island to the Ritz-Carlton stretch. We carry local stock for common sizes and glass packages, so a replacement pane doesn’t have to wait on a truck from Orlando. If your building’s spec calls for a particular brand, we work within that. If it’s open, we’ll recommend the product that fits the opening and the exposure, not the one we happen to have in the warehouse.
Common Window Replacement Problems We See in Key Biscayne Homes
- Salt-pitted aluminum frames. The island’s salt-laden air pits aluminum frames within a few years. Once pitting starts, the frame can’t hold a seal properly, and the next step is usually full frame replacement rather than a glass-only repair.
- Failed seals on non-marine-grade insulated glass. Standard IGUs fail fast here. Without marine-grade seals and stainless hardware, a window that would last 20 years in Miami proper can fog up in five on Key Biscayne.
- High-rise wind load deflection. Basic impact glass isn’t always enough. On upper floors, wind pressure can deflect a sash enough to create air leaks and whistling. The glass needs to match the building’s design pressure rating, not just carry an impact label.
- Condo board approval stalls. We see it constantly: a homeowner buys windows, the association rejects them because the Miami-Dade NOA doesn’t match the original opening’s rating, and the project sits while the homeowner fights a restocking fee. We run the approval first.
Pricing for Window Replacement in Key Biscayne, FL
Let’s be candid about numbers. A single window replacement in Key Biscayne, glass and labor, typically runs $500 – $1,400 for a standard vinyl impact unit, depending on size and floor. A full-frame replacement in a high-rise, with crane time and condo association coordination, can run $1,800 – $3,800 per opening. Sliding glass doors run higher, commonly $3,200 – $6,500, because they’re larger, heavier, and the salt corrosion on the original track usually means more demolition. Every price we quote is written before we order a single window. No revised invoices. No door-step surprises. If the work fails within the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s printed on the document we hand you at job completion.
You will not get a vague range and a handshake from us. You’ll get a line-item price, and you’ll know what it covers before we start. Call (850) 753-2730 for a free estimate, and you’ll see the difference.
We Also Serve Cities Near Key Biscayne
We work all over the South Florida coast, not just on the island. That includes Key Biscayne itself, as well as Miami, Hialeah, and North Miami Beach. If you’re a few miles inland and your windows are fighting the same salt and wind, we can help. Same written pricing. Same guarantee.
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 Replacement in Key Biscayne
Interior replacements in Key Biscayne often do need Miami-Dade NOA labels, because the island enforces wind-borne debris protection on many interior unit doors and windows, not just exterior openings. This surprises homeowners who assume interior work is exempt. It depends on the building’s original permit and what the association’s engineer has specified, but the safe assumption on Key Biscayne is that any replacement touching a window or door gets checked against a NOA. We verify this before you spend a dollar.
Yes. Miami-Dade NOA is the stricter, more granular standard, and it typically requires a specific product matched to the specific opening. Florida Product Approval is a statewide standard, and it does not always satisfy a Key Biscayne condo board or the local building department. If your association’s paperwork says NOA, a Florida Product Approval number alone won’t fly. Call (850) 753-2730 and we’ll check the exact requirement for your building before you order anything.
The biggest cause of seal failure on Key Biscayne is salt-laden air attacking the sealant around the insulated glass unit, not age alone. Once the seal fails and the unit fogs, it usually can’t be restored, but the good news is you often don’t need a full window replacement. We can replace just the IGU and keep your existing frame, which saves money and keeps the condo board happy. Fog between panes means the frame is still doing its job; it’s the glass unit that failed.
A 1990s Key Biscayne condo window is almost certainly not code-compliant by today’s standards, because the island’s design pressure requirements have been tightened since those buildings went up. The telltale signs are old aluminum frames without an impact label, visible pitting on the metal, or windows that bow inward during strong gusts. We can pull the original permit specs and tell you whether an upgrade is required or optional, and what a compliant replacement would cost. The written estimate is free.
Yes, and on Key Biscayne the saving is meaningful because the sun loads the east and west exposures hard. Low-E insulated impact glass typically cuts solar heat gain by 30 – 50% compared to clear single-pane glass, and on a barrier island where air conditioning runs almost year-round, that translates to a real drop on the monthly bill. The exact figure depends on your unit’s exposure, the number of openings, and the glass package, but it’s not unusual for owners to see a 10 – 20% cooling reduction after a full retrofit. Call (850) 753-2730 and we’ll walk through what makes sense for your unit.
If you live on Key Biscayne, you already know the island plays by its own rules. So do we. Call (850) 753-2730 for a free estimate on window replacement, glass repair, or pane replacement. We’ll give you a written price, a real arrival window, and a guarantee in writing. That’s how we’ve done it since 2009, and we don’t plan on changing.
Written by Owen Satterfield, Owner at Westlight Windows Miami, serving Key Biscayne and South Florida since 2009.
Six Reasons Homeowners Choose Westlight Windows Miami
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.