Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom & Geometric Windows Across Miami
Custom and geometric windows in Miami follow a different rulebook than anywhere else in the country. You’re in a High Velocity Hurricane Zone, so any arched, radius, or oversized opening has to carry a Miami-Dade Notice of Acceptance before it can legally go into your home. We handle the engineering, permitting, and install from start to finish. Call (239) 310-4121 when you’re ready to talk through your opening, and we’ll give you a straight answer on what it takes to build it right here in Miami.
Why Winslow Windows & Doors Is Miami’s Preferred Custom & Geometric Windows Company
Ed Winslow put his name on this company in 2011, and that changes how we work in Miami. No ticket numbers. No call center. No walking away from a red-tagged inspection and leaving you to sort it out with the county. When a homeowner in Coral Gables calls us about an arched window that failed rough inspection, Ed hears about it, and Ed owns the fix.
We’ve earned our reputation in Miami by doing the unglamorous parts right: pulling permits before the first cut, submitting shop drawings that match the actual rough opening, and scheduling inspections when we say we will. Our technicians arrive in uniform, background-checked, and knowing exactly what’s on the ticket. The Done Right Promise backs every job. If something isn’t right, we make it right. Period.
We do not treat a geometric window as a special order that gets dropped on your curb. We measure, template, engineer, and install it ourselves, and we know which fabricators in our authorized lineup, PGT, Mr-Glass among them, get Miami-Dade NOAs through without drama. That local knowledge is the difference between a window that clears inspection and one that sits in your garage for six weeks waiting on paperwork.
Our team coordinates every job from our Miami office, so when you call, the person answering already understands HVHZ requirements, Brickell HOA review boards, and tight-lot crane logistics. You are not explaining Miami to someone reading from a script. You’re talking to someone who has already worked on your street or the street one block over.
Our Custom & Geometric Windows Services in Miami
Custom Impact Windows
A custom impact window in Miami is not the same product you’d buy in Fort Lauderdale or Orlando. Every unit has to hold a Miami-Dade NOA and pass large-missile impact testing for your specific wind zone. We size each lite to the actual opening, not the nearest stock dimension, which matters when you’re replacing jalousies on a 1950s CBS home where nothing is square and nothing is standard. The result is a window that clears inspection the first time and actually keeps the storm outside.

Geometric & Shaped Windows
Triangles, trapezoids, pentagons, half-rounds, octagons, whatever shape your architect drew, we can build it impact-rated for Miami. These openings demand custom templates and custom structural calcs, not a stock unit with trim trying to hide the gaps. We matched a full-house jalousie replacement in Coral Gables where the inspector flagged one arched front window with no NOA, and we engineered a custom radius PGT unit with a laminated glass interlayer to pass. That’s the job we do all over Miami-Dade.

Arched & Curved Windows
Arched and radius windows are where Miami homes show their age and where most replacement jobs go sideways. The original rough openings on 1940s through 1960s block homes were rarely square, and the template has to come from your wall, not from a catalog drawing. We cut our own templates on site in neighborhoods like Little Havana, West Miami, and Hialeah, then match the curve exactly with impact glass that carries the right NOA for Miami.

Oversized Openings
Floor-to-ceiling curved openings, corner glass, and wide fixed-lite assemblies are common in Brickell and Edgewater condos where the view is the point. Those jobs need engineering for wind load and design pressure before anything gets fabricated, and they need shop drawings detailed enough to survive an HOA architectural review. We produce those drawings, coordinate the high-rise rigging, and handle the shared-envelope waterproofing details that stop leaks before they start. In a Miami condo tower, access and staging are half the job, and we plan both before you sign anything.
For a full explanation of what goes into these systems, read our Custom & Geometric Windows overview page.

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 are an authorized installer for PGT, Mr-Glass, which means we’re not buying units through a third party and hoping the paperwork matches. When your custom geometric window comes from a brand we’re authorized to install, we control the NOA documentation, the fabrication specs, and the warranty registration. For Miami homeowners, that’s the difference between a window that passes HVHZ inspection and one that gets red-tagged at rough-in because the product approval doesn’t match the opening. We carry touch-up materials and common hardware locally so follow-up work doesn’t wait on a shipment.
Common Custom & Geometric Windows Problems We See in Miami Homes
- Custom lites with Florida Product Approval but no Miami-Dade NOA. This is the most common red-tag we see on Coral Gables and Little Havana CBS homes. A window can be legal in Broward and illegal in Miami. We verify the NOA before we order anything.
- Arched or radius sashes built on the wrong template. The original jalousie rough openings on post-war Miami block homes were never square. A template that wasn’t cut from the actual wall fails dry-fit, and the sash ends up in a warehouse while the homeowner waits. We template every opening on site.
- Oversized curved openings stalled at HOA review. Brickell condos have architectural boards that reject shop drawings that don’t spell out high-rise glazing rigging and shared-envelope waterproofing. We write the drawings to answer those questions before the board asks.
- Salt-air corrosion on aluminum frames and hardware. Miami’s position between Biscayne Bay and the Atlantic means waterfront units, especially on Miami Beach, can show frame and fastener failure in under a decade. We match your replacement window to the exposure level your building actually faces.
Pricing for Custom & Geometric Windows in Miami, FL
A standard impact window in Miami runs between $800 and $1,500 per unit installed. Custom geometric work lands higher because every piece is engineered and templated for your opening: triangles, trapezoids, and radius units typically run $1,200 to $3,500 per opening, and oversized or curved assemblies on a high-rise start around $2,500 and can reach $5,000 or beyond depending on engineering, glazing, and rigging access. We give you a written line-item quote for your exact openings, never a vague ballpark. Call (239) 310-4121 for a free in-home measure and a fixed number before you commit to anything.
What Custom & Geometric Windows Costs in Miami
Here’s the honest Miami market picture. Impact windows generally run $800 to $1,500 per window installed when the openings are standard. Impact single-hung units fall between $900 and $1,800. Large or fully custom openings start around $2,500 and top out near $5,000, and a whole-home package on a typical Miami CBS house can run $8,000 to $25,000 or more depending on how many openings and how many are non-standard. What moves the number in Miami specifically: the opening count, your wind zone and floor height (a Brickell high-rise unit needs different rigging than a single-story in Hialeah), the frame material, and whether the lite is a standard rectangle or a true custom shape. The free in-home measure and written quote is how we pin the number down. Call (239) 310-4121 and we’ll schedule it.
Working on a Tight Miami Lot: How Access Shapes Your Quote
Most Miami lots weren’t built for construction staging. A Coral Gables zero-lot-line home or a Little Havana CBS bungalow with a shared swale leaves very little room for a crew, a materials drop, and a crane. We plan access around that reality from the first site visit. If we’re replacing a full house of jalousies and one arched front window needs a custom radius unit with a laminated interlayer, we coordinate the staging from the swale or the street so our crane never blocks the neighbor’s driveway and we never leave materials piled against a party wall.
Noise and work-hour ordinances differ by municipality. We know what’s allowed in Coral Gables versus what’s allowed in unincorporated Miami-Dade, and we schedule noisy phases inside the permitted window. If your house is in a historic or overlay district, we’ll be upfront about the review timeline before we schedule the install. The access situation is part of the quote, not a surprise change order. When you call (239) 310-4121, ask us specifically how staging will work on your lot. We’ll tell you the truth.
Miami’s HVHZ Rule Changes Everything
Miami-Dade County is the only major US metro designated a High Velocity Hurricane Zone. That is not a marketing phrase. It means every custom or geometric window we install in Miami must hold a Miami-Dade Notice of Acceptance, a certification stricter than the standard Florida Building Code that governs Orlando, Tampa, and Jacksonville. An arched or radius opening that passes code in Fort Lauderdale or Broward often has no legal path to approval in the City of Miami. You cannot order a geometric window from a catalog and assume it’s legal here. We verify the NOA against the actual opening, the actual wind zone, and the actual product configuration before we commit to the job.
There’s a financial upside that only exists because of this strictness. Qualifying impact windows can cut Miami’s homeowner’s insurance premiums by hundreds to over a thousand dollars per year. The windstorm portion of your policy is the expensive part here, and a wind-mitigation inspection plus impact-rated openings is how you attack it. We won’t promise a specific savings number, that’s between you and your carrier, but the mechanism is real and it’s stronger in Miami than anywhere else in the country.
Florida Pays You Back
The incentive stack in Florida is unusually good right now, and custom impact windows qualify in a few ways. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact windows and doors. Florida exempts impact-resistant windows and doors from sales tax. The federal 25C energy credit covers 30% of the product cost on qualifying units up to $600 per year, and after a wind-mitigation inspection (which runs about $75 to $150) many Miami homeowners see the windstorm portion of their premium drop by roughly 25%. We don’t guarantee any of these numbers, programs and carriers set the final figures, but we’ll point you to the right paperwork and give you the documents the inspectors want to see.
One comparison worth knowing: impact windows versus hurricane shutters. Shutters are cheaper upfront, but they only protect you when someone is home to hang them, and they do nothing for noise, insulation, or daily security. Permanent impact glass does the job without panels and without a 2 a.m. scramble when a storm spins up faster than the forecast predicted. For most Miami homeowners replacing old windows anyway, impact glass is the smarter long-term spend. If you’re comparing a big-box retail install against a licensed impact specialist, know this: the box store installs glass. We engineer, permit, template, and install a system that has to survive Miami-Dade inspection. That’s a different job.
This is how the work actually gets done in Miami. Everything on this page, from the NOA verification to the tight-lot staging to the HOA shop drawings, is what keeps your custom or geometric window project from ending in a red-tag. We plan, quote, and build so you don’t have to. If you’re looking for Custom & Geometric Windows in Miami, you’ve found the crew that knows the territory.
We Also Serve Cities Near Miami
We work throughout Southeast Florida, including Miami Beach, Coral Gables, Hialeah, and Miami Gardens. If you’re in one of those cities and you need a custom geometric opening that passes HVHZ inspection, call (239) 310-4121. You’ll get a live person and a straight answer. We schedule free in-home measures across the whole Miami metro.
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. If the window is part of the building envelope, even an interior replacement that doesn’t touch the opening still falls under HVHZ rules in Miami-Dade County. The product has to carry a valid NOA for the configuration being installed. Call (239) 310-4121 and we’ll verify your specific window against the opening before anything gets ordered.
Yes, and this is a regular job for us. The original rough opening is almost never a perfect radius, so we template the wall itself rather than trusting the old sash or a catalog curve. We then order an impact-rated unit, typically from PGT, cut to the actual template and carrying a Miami-Dade NOA. The finished window matches the house’s character and passes inspection.
We plan access before we quote. On a zero-lot-line lot or a shared-swale property, we typically stage from the street or from the swale with the neighbor’s written consent, and we schedule the crane so it doesn’t block driveways during peak hours. The access plan is part of the written quote, not an afterthought. If your lot is tight, call us early so we can assess it in person.
It can. When you pull a permit for one window on a home still fitted with original jalousies, the inspector may flag the remaining openings because jalousies cannot pass any HVHZ inspection and cannot legally be reinstalled once disturbed. We’ll tell you honestly whether your home is likely to face that trigger before we start the permit process. Call (239) 310-4121 for a straightforward read on your situation.
Your HOA’s architectural board typically wants to see the design pressure rating (DP) and the Miami-Dade NOA number for the exact product and configuration, plus shop drawings that show the high-rise glazing rigging and the shared-envelope waterproofing detail. We prepare that package for you. The specific DP depends on your floor height, exposure, and opening size, but we’ll compute it from the actual wind zone data for your building and put it in the submittal. Call us and we’ll build the drawing package your board will actually approve.
Schedule Your Free Estimate in Miami
You’re not going to get a real number for a custom or geometric window over the phone. You’re going to get a free in-home measure, a written line-item quote, and a crew that knows Miami-Dade’s HVHZ rules cold. Call (239) 310-4121 today and we’ll schedule it. Ed’s name is on the door, and it’s on every job we do. The one down the road.
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.










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