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 window work in Miami Beach runs $2,500 to $5,000 for a typical shaped opening, with full impact-rated arched or circular units landing between $3,000 and $6,000 installed. Lead time for fabrication is usually four to six weeks once we lock the design. If you’re standing in a South of Fifth Art Deco apartment right now with a rusted-through semicircular transom and a condo board asking about NOA paperwork, call (727) 604-9322 and we’ll walk you through exactly what this city requires before anyone touches the wall.

We work across every neighborhood in Miami Beach, from South of Fifth up through Mid-Beach and into North Beach, and we know what the Historic Preservation Board will flag before you spend a dollar on glass. This island is unlike any other market in Florida. The salt air alone changes how we spec frames, anchors, and hardware. The preservation rules change what we can install. Our team handles both sides of that equation on every shaped window job we take in the 33139, 33140, and 33141 zip codes.
Why Winslow Windows & Doors Is Miami Beach’s Preferred Custom & Geometric Windows Company
Ed Winslow started this company in 2011, and his name has been on every job since. That matters in Miami Beach because custom geometric window work here carries a compliance gauntlet most contractors never face: a Miami-Dade Notice of Acceptance for the product plus Historic Preservation Board review for the facade. We’ve navigated that process enough times to know which window profiles get approved and which get sent back for redesign. Homeowners in the South of Fifth and Flamingo Park neighborhoods call us because we don’t let a shaped window job stall in board review for three months.
Every technician who arrives at your building is background-checked and in uniform. You’ll know who is at your door before they ring the bell. When you call about a custom arched window on Collins Avenue or a geometric impact unit in the Sunset Islands, a live person answers, 24 hours a day. No call center, no voicemail loop. Ed’s phone rings and someone picks up.
Our Custom & Geometric Windows team has replaced enough original jalousie and steel casement units across Miami Beach to explain, in plain English, what a given opening will require: which NOA applies, whether the design needs preservation-board sign-off, and what reinforcements the existing framing will need. That local knowledge saves homeowners weeks of guesswork. We also stand behind every installation with the Done Right Promise. If it’s not done right, we make it right. That’s not a tagline. It’s Ed’s word.
Our Custom & Geometric Windows Services in Miami Beach
Custom Impact Windows
Every window we install in Miami Beach carries a Miami-Dade NOA. That’s non-negotiable for us. The city sits entirely within the High Velocity Hurricane Zone, and impact-rated glass here isn’t a preference, it’s the baseline. We spec custom impact units for openings that standard manufacturers won’t touch: wide radius arches, circular portholes, trapezoids, and transoms sized to original 1930s rough openings rather than modern standard dimensions.

Geometric & Shaped Windows
Shaped windows are where Miami Beach’s housing stock gets interesting. Art Deco buildings on Ocean Drive and Collins Avenue used horizontal banding and specific glass-to-frame ratios to create the look that preservation boards protect today. We match those proportions in impact-rated glazing, working with manufacturers like CWS and ECO Window Systems to fabricate units that satisfy structural code and design review simultaneously. That dual approval is the hard part here, and it’s the part we’ve done dozens of times.

Arched & Curved Windows
Arched window replacement in a Mediterranean Revival building on Michigan Avenue requires more than a template and a prayer. The original arch spring line, the radius, and the exterior masonry reveal all affect how the new impact unit seats and seals. We measure every point, not just the widest span. Custom curved glazing from ES Windows and Mr-Glass gives us the flexibility to replicate original geometry while hitting the design pressures required for Miami Beach’s wind zone.
One recent job captures what this work looks like here. Our crew replaced a semicircular transom window in a South of Fifth Art Deco apartment whose original steel sash had corroded through at the jamb. We pulled a Miami-Dade NOA for a PGT custom arched impact-rated glazing unit, matched the original horizontal banding to satisfy the Historic Preservation Board, and used stainless-steel anchors rated for HVHZ salt-laden air. The board approved it. The wind mitigation inspection passed. That’s the sequence this city demands, and we know how to run it.

Oversized Openings
High-rise condominiums along Collins Avenue and the Mid-Beach corridor often have curtain-wall openings that run eight to twelve feet wide. Replacing those requires engineering, lift access, and glazing units rated for upper-floor wind loads that run much higher than ground-level structures. We handle the full process: structural review, NOA documentation, building-committee submissions, and installation with crews experienced in occupied condo towers. Front-loading the paperwork with the association prevents the stop-work orders that stall these jobs for months.

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 install and service products from CWS, ES Windows, ECO Window Systems, and Mr-Glass, among the authorized brands we carry. For Miami Beach customers, brand matters for one practical reason: NOA documentation is specific to each product configuration. When we specify a CWS geometric unit with a given glass package and frame profile, we can produce the exact Miami-Dade approval documents the city and your insurance carrier will want. We don’t substitute products without telling you, and we don’t ask you to trust a Florida Product Approval number that doesn’t match the unit going into your opening.
Common Custom & Geometric Windows Problems We See in Miami Beach Homes
- Salt-corrosion at frame anchors and fasteners. The island sits between the Atlantic and Biscayne Bay, so salt-laden air hits every window from two directions. Standard aluminum extrusions that last decades three miles inland on the mainland corrode noticeably within a few years on a Mid-Beach condo balcony. We spec anodized finishes meeting AAMA-2605 and stainless-steel hardware as the baseline here, not an upgrade.
- Historic Preservation Board rejection after installation. A standard Florida Product Approval window with thick modern mullions can alter a 1930s facade enough to get flagged by the board. The consequence is a written order to remove and replace at your cost. We submit design drawings and product specs before installation, which is the only way to protect your money on a South Beach historic district job.
- Jalousie windows that fail every code test. Original louvered jalousie windows in South of Fifth and Flamingo Park apartment buildings have essentially zero hurricane resistance and cannot pass a wind mitigation inspection. Replacing them with impact-rated units that preserve the original horizontal banding and glass-to-frame ratio is a specialty. Sourcing that unit and getting it through the board is what separates a two-month job from a six-month stall.
- Undersized framing behind the old sash. When we remove an original steel casement or jalousie unit in a pre-1950 building, we often find wood or masonry framing that was never designed to carry today’s design pressure loads. Installing a heavy impact window into that opening without reinforcing the jambs and header is how you fail inspection and inherit a leak. We address the framing before the glazing goes in.
Pricing for Custom & Geometric Windows in Miami Beach, FL
Custom geometric window pricing in Miami Beach is driven by four factors: opening size, wall height, required design pressure, and preservation-board review. A modest trapezoid or small arch with a standard NOA runs $2,500 to $3,500 installed. A large semicircular transom or radius arch in a historic building, with custom fabrication and board submission drawings, lands between $4,000 and $6,000. High-rise openings on upper floors of Collins Avenue condos with heavy glazing and lift work can reach $8,000 or more per opening. Every quote we write is itemized so you see material, labor, engineering, and permit costs separately. Call (727) 604-9322 to schedule a free in-home measure and get a written line-item quote. No trip charge inside the county, and if you have a written estimate from another local company, we’ll give you a free second opinion.

What Custom & Geometric Windows Costs in Miami Beach
A standard impact-rated window in Miami Beach runs $800 to $1,500 per window installed. Impact single-hung units sit between $900 and $1,800. Large or custom-shaped openings, which is where most of our Miami Beach work lives, run $2,500 to $5,000 per opening after fabrication, engineering, and installation. Whole-home packages across a mid-century condo or a single-family North Beach home range from $8,000 to $25,000 and up, depending on opening count and wind zone. In Miami Beach, that wind zone matters more than it does in Hialeah or Coral Gables: the barrier-island exposure pushes design pressures higher, and floor height above grade compounds the structural requirement. Frame material matters too. Aluminum with AAMA-2605 anodized finishing or marine-grade treatment is the cost-effective baseline here; premium thermally broken frames or exotic custom glazing push prices toward the upper end. The right way to get an exact number is a free in-home measure. We measure, spec, pull NOA documentation, and hand you a written quote with no change orders after the fact.
Florida Pays You Back
The incentive stack for Miami Beach homeowners doing impact window work is real. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, and shaped impact windows that close a non-compliant opening can count. Florida exempts impact-resistant windows and doors from sales tax. The federal 25C energy credit can return up to $600 per year on qualifying units (30% of product cost). After a wind-mitigation inspection ($75 to $150), many Miami Beach homeowners see windstorm-premium credits averaging around 25% on the windstorm portion of their premium. Every carrier sets final numbers differently, and grant funding moves through state cycles, so the numbers above are not guarantees. They are, however, exactly the figures your insurance agent and our office can help you verify for your specific building.
One structural decision worth knowing before you commit: impact windows vs hurricane shutters. Shutters are cheaper up front, but they must be deployed before every storm, and Miami Beach building codes require either a full-time shutter system or impact glazing. Impact windows are permanent protection. No panels to hang, no storage, no climbing ladder at 11 p.m. with a storm in the Gulf. For high-rise condos and historic properties where shutters are impractical or banned by board rules, impact glazing is the only route that satisfies code and your insurance carrier.
How Miami Beach’s Dual Compliance Changes the Process
Miami Beach is the only city in the country where a custom geometric window job must simultaneously carry a Miami-Dade NOA, the strictest impact product certification in the nation, and clear the Miami Beach Historic Preservation Board. That board can reject a modern impact unit that would pass code anywhere else because it alters a 1930s to 1940s Art Deco facade. No neighboring city faces this dual compliance gauntlet. A contractor who files the permit and installs without board review on a contributing historic building can leave the homeowner with an order to remove and replace the window at their own cost.
What this means practically: the window you install in South Beach will not be the same window as the one installed in Coral Gables. The glass-to-frame ratio, mullion width, and exterior finish all get reviewed. The product itself must have an active NOA filed with Miami-Dade County, not merely a Florida Product Approval. Our process front-loads this. We photograph the existing opening, pull the original design details if they exist, prepare submission drawings, and present the spec to the board before fabricating anything. It adds two to four weeks to the timeline and saves thousands of dollars and unquantifiable frustration.
For the Art Deco and Mediterranean Revival buildings south of Lincoln Road, the board’s design guidelines preserve horizontal banding and narrow sightlines. The deeper concern is framing. Many of these buildings were framed in the 1930s. The rough openings are often undersized for today’s impact units. When we pull an old jalousie window on Euclid Avenue, what we find behind the stucco is the single biggest variable in the final price. Our inspection process accounts for that. We write allowances into the contract for framing reinforcement, and if we find rot, undersized headers, or failed waterproofing after the old unit comes out, we price the repair in writing before we touch it. You approve the number. There is no surprise on the final invoice. That’s how Ed has run jobs since 2011, and it’s the only way to do honest work in a city where the wall behind the window is rarely as sound as the plaster suggests.
We Also Serve Cities Near Miami Beach
Our Custom & Geometric Windows in Miami Beach work keeps us on the island most weeks, and we regularly serve nearby communities including Miami, Coral Gables, Hialeah, and North Miami Beach. The 33139 zip code is home base for a lot of our South of Fifth projects, and we’ll cross the causeway for shaped window work wherever the architecture calls for it.
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
Yes, if the building is in a designated historic district or is a contributing property, you need both. The NOA certifies the product meets Miami-Dade’s impact standards. The Historic Preservation Board reviews whether the unit’s design alters the facade’s original character. We handle both filings. Call (727) 604-9322 and we’ll tell you whether your building is on the historic registry and which submission applies.
Yes. Manufacturers like CWS and ES Windows fabricate impact-rated units with slimmer sightlines than the standard hurricane windows you see at big-box stores. The board reviews each submission on the original building’s specific details, so we match dimensions from the existing opening, not a catalog drawing. Expect a board review cycle of several weeks on top of the four-to-six-week fabrication window. Call (727) 604-9322 to start with a measure and a design drawing.
In most cases, yes, provided the replacement window carries a Miami-Dade NOA and the installation passes the wind mitigation inspection. Jalousie windows score essentially zero on mitigation. A certified impact unit with proper anchoring typically qualifies for a premium credit, commonly around 25% on the windstorm portion. Your carrier sets the final number. We’ll give you the NOA documentation your inspector and insurer will request. Call (727) 604-9322 for a free estimate.
Spec the right materials from the start. AAMA-2605 anodized finishes or marine-grade treatments on the aluminum, stainless-steel fasteners and anchors, and full watershedding flashing at the jamb and sill. On upper floors with direct Atlantic exposure, we also specify higher-grade gaskets and weep systems. Retrofits on existing corroded frames may include sanding, priming, and recoating where the glass package is salvageable. Call (727) 604-9322 if you’ve noticed pitting or white powder on your frames; we’ll assess whether it’s a refinish or a replacement.
The job price moves, and a good contractor tells you before touching any additional work. In our contracts, we write a framing allowance for every pre-1950 building in Miami Beach, because original rough openings often cannot carry a modern impact unit. If we find undersized headers, rotted jambs, or failed waterproofing after the old window comes out, we price the correction in writing and get your approval before we proceed. You never get a surprise line item at the end. Call (727) 604-9322 if you’re already mid-remodel and need a second opinion on a framing change order.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami Beach and South Florida with custom window and door work 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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