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 Beach
Custom and geometric windows in Miami Beach carry a burden no other U.S. market imposes: every arched, radius, trapezoid, or oversized unit must pass Miami-Dade County’s NOA impact testing while also earning a Certificate of Appropriateness from the Miami Beach Historic Preservation Board if the building falls within the South Beach Historic District’s 800-plus contributing Art Deco and Mediterranean Revival structures. That dual approval changes which products qualify, how long the process takes, and what the final number on the invoice looks like. Winslow Windows & Doors has been navigating both agencies since 2011. Call (863) 656-0462 and Ed Winslow will walk you through exactly what your building needs before you spend a dollar.

We’re the local team that shows up on Ocean Drive, Collins Avenue, and the Mid-Beach corridor understanding the code book and the preservation board’s aesthetic standards. That’s not boilerplate. It’s the difference between a window that gets approved and one that gets rejected after fabrication.
Why Winslow Windows & Doors Is Miami Beach’s Preferred Custom & Geometric Windows Company
Ed Winslow put his name on this business, and that means something specific in Miami Beach: when the Historic Preservation Board rejects a submittal, we’re the ones who rework the drawings and advocate for the homeowner. We don’t hand you a ticket number. We answer the phone live, 24/7, and we know the difference between a Fenestra narrow-profile steel casement and a Hope’s-style original when we see it on a lower Collins Avenue walk-up.
Miami Beach homeowners call us because we’ve already solved the hard cases. Our published address and license number are on every quote, and every technician arrives background-checked and in uniform. No subcontractor roulette. No call center. Just one owner-operated team that has spent 15 years learning exactly what this barrier island’s buildings demand.
We also bring real local convenience: $40 off any repair over $200, free second opinions on written estimates, no trip charge inside the home county, and a permanent 10% discount for seniors and veterans. Those aren’t promotions. They’re standing commitments to our neighbors.
For more on our full lineup of Custom & Geometric Windows work across the region, start with the service overview and then come back to the Miami Beach specifics here.
Our Custom & Geometric Windows Services in Miami Beach
Custom Impact Windows
Impact Windows in Miami Beach aren’t a luxury upgrade. They’re the baseline for any replacement on a hurricane-exposed barrier island where the county requires Miami-Dade NOA product approval. We fabricate impact units to match odd openings in mid-rise condos on Collins Avenue and in single-family homes north of 41st Street, with design pressures matched to the opening and wind zone, never exceeding +/-100 PSF on the rating.

Geometric & Shaped Windows
Trapezoids, triangles, pentagons, and radius corners show up throughout Miami Beach’s 1920s through 1940s residential stock, especially in the Historic District. A standard rectangular NOA-approved system won’t work in these openings. We scope the Historic Preservation Board review before quoting so the muntin profiles, sightlines, and frame finish match the building’s original character on the first submittal, not the third.

Arched & Curved Windows
Arched windows on South Beach contributing buildings are where most contractors stumble. The NOA impact glass can be fabricated to nearly any radius, but the Historic Preservation Board cares about the frame’s visual profile and the grille pattern. We’ve replaced 1930s arched steel casements with thermally broken aluminum impact units that replicated the original sightlines closely enough to pass board review on Ocean Drive.

Oversized Openings
Floor-to-ceiling custom openings, corner mullion assemblies, and wide radius transoms on Mid-Beach condos need engineering before fabrication. We coordinate the structural calcs, NOA documentation, and HOA submittal package together so the board and the county see one consistent set of drawings. That’s how bulk window replacement programs stop stalling.

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 Beach
We’re factory-authorized for CWS, ES Windows, and Mr-Glass, among our full brand lineup, and we handle Es Windows repair in Miami Beach. Why does that matter in Miami Beach? Because when a custom radius impact unit needs a replacement sash or a matching architectural profile years later, we can source the exact extrusion and finish. We don’t leave South Beach homeowners hunting for discontinued framing. For geometric and curved openings, ES Windows and CWS give us the thermally broken profile options that survive both the salt air and board scrutiny, and Mr-Glass handles the specialty impact glazing on the tightest radius work.
Common Custom & Geometric Windows Problems We See in Miami Beach Homes
- Salt-spray corrosion seizing original steel casement hardware. The Atlantic side of Miami Beach puts airborne salt on every window within a few blocks of the water. Original steel crank mechanisms oxidize within five to seven years, and an operable impact replacement only works long-term if stainless fasteners and marine-grade finishes are in the spec from day one.
- Historic Preservation Board rejection after fabrication. We regularly see contractors fabricate a custom arched or curved impact window that meets NOA but misses the board’s muntin-pattern standards. That’s a scrap unit and a four-to-six-week replacement delay. We scope board review before any metal gets cut.
- Condo and HOA approval bottlenecks on Collins Avenue and Mid-Beach. Bulk custom geometric replacement programs stall when each unit’s unique opening shape needs both NOA documentation and aesthetic sign-off. Board packages sent in piecemeal get bounced. We submit one complete package per building.
- Clogged weep-hole tracks from salt deposits. Even non-impact custom geometric windows become inoperable when salt crust builds in the drainage channels. Coastal Miami Beach installations need wider weep slots, higher-end hardware, and an owner who knows to rinse the tracks during dry season.
Pricing for Custom & Geometric Windows in Miami Beach, FL
Here’s the honest range. A simple geometric fixed window with impact glass in Miami Beach runs roughly $900 to $1,800 installed. Custom arched and radius impact units on a Historic District contributing building run $2,500 to $5,000 per opening, because the board-compliant profile, specialty glazing, and dual approval coordination all add cost. Whole-home packages range from $8,000 to $25,000 or more depending on opening count, floor height, and wind-zone requirements. The free in-home measure and written line-item quote is exactly that: free. Call (863) 656-0462 to schedule yours.

What Custom & Geometric Windows Costs in Miami Beach
For Miami Beach specifically, three things move the price more than anything else. First, the wind zone: east-of-Indian-Creek and oceanfront properties sit in the most demanding HVHZ exposure categories, which pushes Shingle, Tile & Metal Roofing - Miami Beach frame engineering and design pressures up. Second, floor height on the Collins Avenue and Mid-Beach condo towers means higher wind loads and sometimes crane or lift access for installation. Third, Historic District status: any contributing Art Deco or Mediterranean Revival building adds the Certificate of Appropriateness process, which is time and documentation labor, even before glass is ordered.
As a practical pricing anchor, a standard custom impact window in Miami Beach runs $800 to $1,500 installed, a custom impact single-hung runs $900 to $1,800, large or unusual openings run $2,500 to $5,000, and whole-home packages start around $8,000 and can pass $25,000 on an oceanfront Mid-Beach building. The right quote depends on your exact openings and building status, which is why we measure every window in person and put the full number on paper. Call (863) 656-0462 for that free written estimate.
Florida Pays You Back
The incentives for impact-rated custom geometric windows stack in ways most Miami Beach homeowners miss. My Safe Florida Home matching grants can cover up to $10,000 of qualifying wind-mitigation work for eligible homeowners in Florida. The state sales-tax exemption applies to impact-resistant windows and doors, which takes real money off the top of a multi-window project. On the federal side, the 25C energy credit can cover 30% of product cost on qualifying units, up to $600 per year. And after a wind-mitigation inspection, many Miami Beach owners see windstorm-premium credits averaging around 25% on the windstorm portion of their policy. The inspection itself typically costs $75 to $150. We never guarantee what your carrier or the programs will approve, but we’ll point you to the right paperwork for every credit you may qualify for.
One comparison worth making: impact windows versus hurricane shutters. Shutters protect glass only when someone remembers to hang them before a storm. Miami Beach evacuations mean no one is home to hang panels. Impact glass is always in place, always working, and never needs deployment. We do not sell or install shutters, but we’ll gladly help you understand why permanent impact glazing is the stronger choice for a barrier island home.
We Also Serve Cities Near Miami Beach
Winslow Windows & Doors serves Custom & Geometric Windows in Miami Beach and the surrounding South Florida communities. That includes Miami, Key Biscayne, Coral Gables, and North Miami Beach. Dispatch and scheduling for Miami Beach runs through our South FL office, with local crews on the island throughout the week. Call (863) 656-0462 and we’ll have a real person on the line.
And to be clear about the scope of this page: our focus here is Miami Beach itself, from South Pointe up through Mid-Beach and North Beach, including the Historic District’s dual-approval work that no other market requires.
Serving Miami Beach, FL - Our Local Coverage Area
We’re based in the Miami Beach 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 Beach
Miami Beach sits inside Miami-Dade County, so every impact window must carry a Miami-Dade NOA (Notice of Acceptance) proving it passed the nation’s strictest hurricane testing. Separately, the Miami Beach Historic Preservation Board requires a Certificate of Appropriateness for any exterior change on the 800-plus contributing Art Deco and Mediterranean Revival buildings in the South Beach Historic District. Skip the NOA and the county fails your permit. Skip the Certificate and the board can issue a stop-work order, fines, and force removal of the windows. Call (863) 656-0462 and we’ll run both tracks from day one.
Most standard NOA-approved PGT and CGI profiles will not pass board review on a contributing Ocean Drive building, which is why Roof Replacement & Installation - Miami Beach projects follow the same strict replication rules the board requires for original slim sightlines and muntin patterns. Our crew on Ocean Drive replaced a 1930s Fenestra-style narrow-profile steel casement with a custom thermally broken aluminum impact unit that copied the original sightline and muntin pattern, because the first three off-the-shelf systems got rejected. You generally need a specialty thermally broken profile from a line like ES Windows or CWS. We know which profiles the board has accepted before, and which ones not to submit.
Salt spray on Miami Beach is dramatically more corrosive than even mainland Miami because the island sits between the Atlantic and Biscayne Bay, and salt air reaches windows several blocks inland. Aluminum frames oxidize faster, weep-hole tracks clog with salt deposits, and steel hardware seizes within a few years. Marine-grade finishes and stainless fasteners aren’t optional here, and we spec them on every coastal custom window we install in Miami Beach. Call (863) 656-0462 for a corrosion review of your existing openings.
Yes, a custom arched impact window with the required Miami-Dade NOA and Florida Product Approval numbers qualifies for wind-mitigation credits the same way a standard rectangular impact unit does. The credit depends on the window’s design pressure rating and product approval documentation, not its shape. We provide the NOA number and product approval documentation with every Mid-Beach condo install so your wind-mitigation inspection goes through cleanly. Call (863) 656-0462 for an exact quote, and we’ll confirm eligibility for your specific building.
Because board review changes the product field, the timeline, and the price, and quoting before scoping it means you get a number that won’t hold. The board’s requirements can rule out most off-the-shelf NOA systems, force a custom thermally broken profile, or demand specific muntin patterns that add fabrication cost. We scope the review before quoting so the number we give you covers the window the board will actually approve. That’s the only way to avoid a scrap unit and a four-to-six-week delay.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami Beach with the 36500-Day Done Right Promise.
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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