Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Custom & Geometric Windows in Miami
Custom and geometric windows in Miami are governed by the strictest wind-load code in the country, Miami-Dade County’s High-Velocity Hurricane Zone (HVHZ). Every shaped opening, whether arched, radius, trapezoid, or oversized, must carry a Miami-Dade Notice of Acceptance (NOA) or it will fail plan review and stall your permit indefinitely. Winslow Windows & Doors has been navigating those requirements since 2011, and Ed Winslow personally stands behind every install. Call (727) 620-6983 for a straight answer and a free in-home measure.
If you live in Coral Gables, Kendall, Little Havana, Brickell, or Miami Beach, you already know there is no such thing as a “simple window swap” here. Salt air eats frames. Hurricanes test every seal. And a cheap quote that skips certification leaves you uninsurable after the next storm. We handle the paperwork, the engineering, and the install, so you get a window that actually passes inspection the first time.
Why Winslow Windows & Doors Is Miami’s Preferred Custom & Geometric Windows Company
Ed Winslow founded this company in 2011 and never sold it to a private equity group. That matters in Miami, where homeowners routinely get handed off to subcontracted crews after signing with a national brand. When you call us, you get a live person, day or night. When we show up, you get a background-checked, uniformed technician whose name you know before the truck parks.
Miami homeowners keep our number saved for one reason: we do not walk away from a job that fails inspection. Our Done Right Promise means if it is not done right, we make it right. Not for 90 days. Not for a year. For as long as Ed owns the company. That is the accountability a Miami-Dade NOA job demands.
We are an authorized installer for eight premium brands, including PGT, CGI, ES Windows, and ECO Window Systems. That lineup matters because not every brand carries Miami-Dade NOAs on their shaped and oversized configurations. We only quote windows that can legally go into your opening, in your wind zone, at your height above grade.
Our Custom & Geometric Windows Services in Miami
Custom Impact Windows
Any custom impact window going into a Miami home must meet large-missile impact standards, not small-missile. That means a 9-pound 2×4 fired at the glass at 50 feet per second, twice, and the window has to stay in the frame. We specify laminated glass with a proper interlayer, reinforced jambs, and Miami-Dade NOA hardware on every opening. In a 1960s CBS ranch in Westchester or a 30th-floor Brickell condo, the engineering changes, but the compliance standard does not.
Arched & Curved Windows
Arched and radius windows are common in Miami’s Mediterranean revival homes and high-rise entries, but most national brands never bother certifying them for Miami-Dade. That is why so many homeowners walk into plan review with a beautiful product that gets rejected. We only quote arched and curved units that already carry an NOA for the exact radius and rough opening dimensions in your permit set.
Oversized Openings
Floor-to-ceiling glass on a Biscayne Bay-facing wall changes everything: design pressure goes up with height, exposure category, and glass area. An oversized custom window in a Brickell high-rise may need to hold a design pressure of +/-70 or +/-80 psf, sometimes higher. That is not a guess. It is calculated per opening, per elevation, per Miami-Dade code, and it is stamped on your product approval paperwork. We do that math before we quote, not after you sign.
Geometric & Shaped Windows
Triangles, trapezoids, pentagons, circles, half-rounds, octagons. Miami’s high-end spec homes in Coconut Grove and the luxury condos along Collins Avenue are full of them, and every one is a structural opening that must hold wind load. We order each shape with the correct structural mullions, laminated glass configuration, and Miami-Dade NOA documentation. And we install it square to the rough opening, because a shaped window that is off by half a degree will bind, leak, and fail.
For more on how these compare to standard window replacement, see our Custom & Geometric Windows service overview.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Miami
We install and service custom and geometric window systems from ECO Window Systems, Mr-Glass, and ViewLux, alongside our PGT and CGI lines. Because our Miami scheduling desk stocks local hardware and coordinates directly with these manufacturers, turnaround on replacement parts for shaped windows is faster than you will get from an out-of-state call center. We keep local inventory records by project, so if your arched window needs a new operator or seal five years from now, we know your exact product and NOA number without making you dig for paperwork.
Common Custom & Geometric Windows Problems We See in Miami Homes
- Plan-review rejection due to missing or mismatched NOA: A contractor quotes a beautiful arched window but cannot produce a Miami-Dade Notice of Acceptance for that exact configuration. The permit stalls, the deposit sits, and the homeowner is left chasing paperwork. We pull the NOA before we quote, not after.
- Marine-grade corrosion on shaped aluminum frames: Homes within a few miles of Biscayne Bay, in neighborhoods like Edgewater, Morningside, and Belle Meade, show visible oxidation on aluminum frames within eight to ten years. Shaped windows have more joints and hardware points than stock rectangles, so corrosion causes binding and seal failure faster. We specify marine-grade hardware and factory finishes matched to coastal exposure.
- Jalousie-to-impact conversions with non-standard rough openings: Thousands of Hialeah and Little Havana homes still have original jalousie windows. The rough opening is rarely square, often too shallow for a modern impact frame, and always non-compliant. This is a full reframe job, not a window swap, and it requires engineered drawings per opening. We do it regularly.
- Oversized laminated glass without large-missile rating: Some installers put non-impact laminated glass into big openings and call it good. Under Miami-Dade HVHZ code, that window is not compliant, your insurance wind-mitigation credit will not apply, and your home may become uninsurable. We never cut that corner, and we document compliance on every oversized unit.
What Custom & Geometric Windows Costs in Miami
Here are the real numbers for the Miami market. Impact-rated windows in standard sizes generally run $800 to $1,500 per window installed. Impact single-hung units fall between $900 and $1,800. Large or fully custom openings, including arches, oversized fixed glass, and multi-lite geometric assemblies, typically range from $2,500 to $5,000 per opening depending on size, radius, floor height, and design pressure. Whole-home packages in Miami commonly land between $8,000 and $25,000+.
What moves the price in Miami specifically: the wind zone, the height above grade, the exposure category, whether the opening faces open water, the frame material, and of course the number of openings. A single arched custom window on a Coral Gables street will cost far less than the same window on a 20th-floor Brickell unit facing the Atlantic, because the required design pressure is dramatically higher. That is not an upsell. That is Miami-Dade engineering.
Every quote includes a free in-home measure and a written line-item price. You will see the window cost, the NOA documentation cost, the permit fee, the installation labor, and the disposal. No allowances, no change orders. Call (727) 620-6983 and we will schedule it.
Pricing for Custom & Geometric Windows in Miami, FL
To be direct about it: a custom geometric impact window in Miami starts around $2,500 for a small arched or radius unit and climbs to $5,000+ for a large or high-rise opening that requires elevated design pressures and marine-grade hardware. Standard impact windows, whether single-hung or horizontal roller, sit in the $800 to $1,800 range. What separates a compliant quote from a cheap one is rarely the glass. It is the engineering calcs, the Miami-Dade NOA, the reinforced frame, and the permit set that proves the opening meets HVHZ code. A quote that omits those items is not cheaper. It is incomplete.
We give you an exact number in writing after a free in-home measure. No “pricing varies” brush-off. Call (727) 620-6983.
Florida Pays You Back
The incentive stack in Florida is real, and we help Miami homeowners document it properly. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact windows. Florida also provides a sales-tax exemption on impact-resistant windows and doors. On the federal side, the 25C energy credit returns 30% of product cost on qualifying efficient units, up to $600 per year. After installation, a wind-mitigation inspection (typically $75 to $150) can unlock windstorm premium credits that average around 25% off the windstorm portion of your policy, under Florida Statute 627.0629.
Program rules and carrier underwriting change, so we do not promise a specific dollar figure on your premium. We do provide the documentation, the NOA paperwork, and the installed product that lets your inspector and your insurer verify compliance. One honest comparison worth making: impact windows versus hurricane shutters. Shutters protect during a storm, but you have to store them, haul them, and hang them every time a warning hits. Impact windows are always on. They protect your house while you are at work, asleep, or evacuated. For most Miami homeowners, especially those with custom shaped openings that shutters cannot cover anyway, permanent impact glazing is the only practical answer.
We Also Serve Cities Near Miami
Beyond Miami proper, we install Custom & Geometric Windows in Miami and throughout the surrounding area, including Coral Gables and Hialeah. The same Miami-Dade NOA and HVHZ requirements apply from Hialeah’s CBS ranches to Coral Gables’ Mediterranean estates, and our crews are on the road across the county every week. Whatever city you are in, you get Ed’s name on the job and a written quote before any work begins.
Serving Miami, FL - Our Local Coverage Area
We’re based in the Miami 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 - Custom & Geometric Windows in Miami
Yes. In Miami-Dade County, every replacement window, impact-rated or not, must carry a Miami-Dade Notice of Acceptance for the exact configuration being installed. That includes arched, curved, trapezoid, and oversized openings. A non-impact window in a shielded interior opening still needs an NOA for structural approval, or your permit will not clear plan review. Call (727) 620-6983 and we will verify your opening’s compliance status before you spend a dollar.
There is no single number. The design pressure for an oversized window in a Brickell high-rise is calculated per opening based on floor height, exposure category, wind zone, and glass area. Many upper-floor Brickell units require +/-70 psf or higher, and each window must have Miami-Dade product approval documentation showing it meets the calculated load. We run those calcs before quoting.
Yes, and thousands of Hialeah homeowners have already done it. Jalousie windows are prohibited for any new or replacement installation under HVHZ code, which means you are required to convert. The rough opening usually needs reframing to accept a modern impact frame, and if you want a geometric shape in place of the old jalousie, the opening gets re-engineered and the new unit gets its own Miami-Dade NOA. We handle the full conversion. Call (727) 620-6983 for a free measure and written quote.
You document the installation with three things: the Miami-Dade NOA for each unit, the permit set with passing inspections, and the manufacturer’s product approval paperwork showing the large-missile impact rating and design pressure. A licensed wind mitigation inspector then verifies the openings and files the form your insurer uses to apply the credit under Florida Statute 627.0629. We hand you a complete compliance folder on completion, so you never have to chase papers later.
Because the airborne salt from the Atlantic accelerates aluminum oxidation, particularly at the joints, hinges, and locking points where shaped windows have far more hardware than a standard rectangle. Over time, untreated hardware binds, sashes sag, and seals fail. On any coastal Miami job, from South Beach to Key Biscayne, we specify marine-grade stainless hardware, corrosion-resistant finishes, and factory coating systems matched to the salt exposure. It is a materials decision that adds modest upfront cost and prevents a five-figure failure in a decade.
If you have a custom or geometric window project in Miami, get a straight answer before you sign anything. Call (727) 620-6983 and Ed’s team will schedule your free in-home measure, run the engineering, and put every number in writing. The one down the road, and the one who answers the phone.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami since 2011.
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.