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 are not a cosmetic upgrade. In Miami-Dade County, a circle-top window, an arched transom, or a trapezoid unit over a front door must carry its own Notice of Acceptance, often called an NOA, from the Miami-Dade building department, on top of any Florida Product Approval it might hold. Without that county-specific number tied to the exact glass and frame make-up, the permit gets rejected, plain and simple. Winslow Windows & Doors has handled enough Miami inspections to know which units clear on the first visit and which ones never will. Call (727) 860-0593 and we will tell you straight what your opening needs.
Ed Winslow’s name is on the door, and on every job we do. Ed started this company in 2011, and he still answers the phone. If you live in Westchester, Little Havana, or along Coral Way, you are not getting a call center. You are getting a local crew that knows Miami-Dade code from the inside.
Why Winslow Windows & Doors Is Miami’s Preferred Custom & Geometric Windows Company
Miami homeowners call us because we do not guess at code. Miami-Dade enforces its own product-approval system, and our team checks the county’s online NOA database before we ever order a unit. That habit has saved Miami customers thousands of dollars in rejected permits and re-orders. Cheap out-of-town crews skip that step every single week. We see the aftermath.
Our reputation in Miami is built on inspections that pass the first time. Before we quote a custom radius-top window in Coral Gables or an oversized trapezoid in Hialeah, we confirm the exact NOA number for that configuration. The county’s inspectors cross-check every window against that database before sign-off. When our paperwork is right, the job closes clean.
Every technician who parks in front of a Miami home is background-checked and uniformed. You will know who is coming before the truck pulls up. We answer the phone 24/7, so when a storm season worry hits at night, a real person picks up.
Call our Custom & Geometric Windows team and you will talk to someone who has stood in a Miami inspection line, not someone reading a script.
Our Custom & Geometric Windows Services in Miami
Shaped windows are common in Miami architecture, from 1950s ranch homes with circle-top vents to 1990s spec houses with arched transoms over the entry. Each shape raises questions about wind load, glass type, anchoring, and yes, that NOA. Here is how we handle each one in Miami.
Custom Impact Windows
A custom impact window in Miami is not the same product you would buy in Tampa. For a window to be legal in Miami-Dade, it must carry a Miami-Dade NOA, and for most openings, that means large-missile testing: a nine-pound two-by-four fired at the glass at 34 miles per hour. Your custom impact window has to hold that hit, then survive 9,000 cycles of positive-and-negative wind pressure. We only quote units with the documentation to prove it. In neighborhoods like Shenandoah or Coconut Grove, where openings are irregular and older, we measure, check the NOA database, then order.

Geometric & Shaped Windows
Triangles over a stairwell, half-circles over a door, angled units on a contemporary facade. Each shape in Miami has to be engineered for the wind zone it sits in. A trapezoid on the second floor of a home near Biscayne Bay deals with more uplift than the same shape on a ground-floor unit in Hialeah. We match design pressure to the opening, never the other way around. The glass is typically laminated impact-rated, and the frame is either thermally broken aluminum or vinyl with corrosion-resistant hardware, because salt air here does not forgive cheap screws.

Arched & Curved Windows
Arched windows are a signature look in Miami’s older neighborhoods, especially on Spanish-revival homes in Coral Gables and Mediterranean-style houses in Little Havana. Replacing one without disturbing the stucco around the rough opening takes care. We have done enough of these to know how to set a radius top into a masonry opening properly, with anchoring meant for concrete block, not wood framing. The flash and seal work matters just as much as the unit itself, especially when humidity runs above 75% for half the year.

Oversized Openings
A floor-to-ceiling window wall in a modern Miami house is not just a bigger window. It is a structural decision. Large custom openings push into the $2,500 to $5,000 range per unit once you factor in the glass, the reinforced frame, and the wind-load engineering. On concrete block construction, the anchoring detail is different than on a wood-frame home. Our crew installs oversized units with stainless steel fasteners into the block, nothing less. We serve Custom & Geometric Windows in Miami and the surrounding communities with the same care on every job, large or small.

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 geometric windows from PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru. For Miami work, we lean hard on PGT and CGI, the two lines most often spec’d with Miami-Dade NOA coverage across their custom configurations. We keep long-standing relationships with the manufacturer reps, which means when a Miami homeowner needs a replacement sash or hardware for an arched unit, we can get the part faster than a crew that orders online. You will not wait weeks on a hinge while a storm sits in the Atlantic.
Common Custom & Geometric Windows Problems We See in Miami Homes
- NOA mismatch on shaped units. A circle-top or trapezoid shows up with a Florida Product Approval number but no county NOA. Miami-Dade’s database check kicks it back at permit review, and the homeowner eats a re-order. We check before we order.
- Salt-air corrosion on arched transom hardware. Standard aluminum hinges and rollers pit within two hurricane seasons near the bay or the ocean. We spec stainless and corrosion-resistant hardware on every shaped unit we install in Miami.
- Jalousie windows still in service. Miami’s 1950s and 60s concrete block homes still carry a lot of original single-pane louvered jalousies. They leak wind, water, and conditioned air at a rate that shocks new homeowners. Converting one to an arched impact unit is the single highest-value replacement we do in neighborhoods like Westchester and Hialeah.
- Vinyl flashing on masonry sills. Curved-top windows on stucco homes get flashed with tape meant for wood framing. Water gets in at the sill, mold follows, and the interior jamb rots. We use pan flashing and weep details designed for concrete substrate, not a wood buck.
Pricing for Custom & Geometric Windows in Miami, FL
Expect a custom geometric impact window in Miami to run between $1,400 and $3,200 per unit installed, depending on the shape, size, and NOA rating required. A simple fixed half-circle in a standard opening sits at the lower end. A large radius-top over a front entry, with a large-missile NOA and corrosion-resistant hardware, pushes toward the top. Arched and curved units almost always cost more than rectangles because the glazing and frame are cut to order, and the lead time reflects that. Custom fabrication runs 4 to 6 weeks once the order is placed. The unit itself is only part of the price. Anchoring into concrete block, full pan flashing, and a proper weep system add labor that a cheap quote may leave out. Our quotes include all of it. Call (727) 860-0593 for a free in-home measure and a written line-item quote. No change orders. No surprises on the invoice.
What Custom & Geometric Windows Costs in Miami
Here is the honest math for Miami. A standard impact window, rectangular, runs $800 to $1,500 installed. A single-hung impact unit lands between $900 and $1,800. Large or custom openings, the geometric shapes we are talking about, run $2,500 to $5,000. A whole-home package across a typical Miami CBS home starts around $8,000 and can pass $25,000 if the house has a lot of openings, second-story access, or high-end finish requirements. What moves the price in Miami specifically: the number of openings, the wind zone, the floor height, and the frame material. A second-story arched unit on a home near the bay needs a higher design pressure rating than a ground-floor window in Hialeah, and that engineering cost is real. The NOA documentation, the anchoring detail, the flashing system. We quote all of it, and we invite you to compare line by line. Call for a free in-home measure and a written quote.
Florida Pays You Back
Miami homeowners who install impact-rated custom and geometric windows can stack several incentive programs. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact windows and doors, for eligible homeowners. Florida exempts impact-resistant windows and doors from sales tax, which on a $15,000 project is meaningful money back at the point of sale. The federal 25C energy credit covers 30% of the product cost, up to $600 per year, on qualifying energy-efficient units. After a wind-mitigation inspection, which typically costs $75 to $150, many Miami carriers apply a windstorm-premium credit averaging around 25% on the windstorm portion of the policy. No one can promise you a specific credit, because the state program sets its own schedule and each carrier applies its own rules. But the framework is real, and we will give you the documentation your inspector and your insurer need.
One comparison is worth making before you commit: impact windows versus hurricane shutters. Shutters are cheaper up front, but they have to be hauled out and hung every time a storm threatens, and they do nothing for your cooling bill, your UV damage, or your noise level the other 360 days a year. An impact window is permanent protection that works every day, and it is the reason most Miami homeowners go the glass route once they run the long-term numbers.
We Also Serve Cities Near Miami
Our crews serve all of Miami and regularly work in Miami Beach, Coral Gables, Hialeah, and Miami Gardens. If you live in one of those cities and need a custom arched or geometric window with the right county paperwork, call the same number: (727) 860-0593. Ed’s name is on the work whether the job is on Brickell Avenue or a side street in Hialeah.
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, it really needs its own Miami-Dade NOA. Florida Product Approval is a statewide baseline, but Miami-Dade County’s building department will not accept it alone because the county adopted stricter post-Hurricane Andrew standards. A custom geometric window without a Miami-Dade NOA number tied to the exact frame and glass make-up gets rejected at permit review. We check the NOA database before ordering anything. Call (727) 860-0593 and we will confirm the numbers for your opening before you spend a dollar.
You can, and it is one of the upgrades we do most in Little Havana and Westchester. The concrete block opening does limit you in one way: the anchoring has to match the masonry, not wood framing. We use stainless steel fasteners set into the block and a pan-flash system that handles the humidity. The shape itself is not the problem. The documentation is. We will confirm the NOA for your specific arched configuration before we order.
A large-missile rating means the glass and frame were tested to take a nine-pound two-by-four fired at 34 miles per hour without breach, then hold up under thousands of cycles of wind pressure. In a Miami hurricane, flying debris is what breaches the envelope of your house. Once wind gets inside, it lifts the roof. An impact-rated geometric window is not just a pane. It is the structural link that keeps your home’s envelope sealed. Call us to see the test reports for the unit you are quoted.
Yes, meaningfully. Miami’s humidity averages above 75%, and single-pane jalousies leak conditioned air nonstop. Low-E impact glass reflects solar heat while keeping the cooled air in. Most Miami homeowners notice the change in the first full summer month. The exact dollar figure depends on your home’s exposure and your AC system, but the combination of tighter seals, Low-E coating, and impact lamination changes the thermal performance of the house. Call (727) 860-0593 for a quote and we will walk you through the glass options that make sense for your orientation and your window count.
Your Miami window replacement should include the NOA number for every unit, the large-missile or small-missile rating for each opening, the design pressure matched to the wind zone, and the signed permit with final inspection approval from Miami-Dade County. We provide all of it in one packet at close-out. That packet is what your wind-mitigation inspector will review to certify the home for premium credits. We do not leave a Miami job without it.
Written by Ed Winslow, Owner at Winslow Windows & Doors. Ed founded the company in 2011 and has been accountable for every job since. The one down the road.
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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