Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Custom & Geometric Windows in Miami Beach: What You’ll Pay, Who Approves It, and How Long It Takes
Replacing a custom or geometric window in Miami Beach means satisfying two bosses at once: the Miami Beach Historic Preservation Board, which must approve the exact muntin profile, finish, and sightline proportions on any contributing structure, and Miami-Dade County’s HVHZ impact code, the strictest glazing standard in the country. A mid-range custom geometric impact window in Miami Beach runs $1,400 to $3,200 installed, with arched and radius units on historic buildings typically landing between $2,200 and $4,800 once board review and structural opening work are factored in. We are Custom & Geometric Windows specialists who file the board submittal ourselves, schedule around the review calendar, and install units that pass both the aesthetic review and the large-missile test. Call (863) 946-5039 for a free in-home measure and written quote drawn to your opening.
If you live in a 1930s Art Deco low-rise on Euclid Avenue or a MiMo-era building near Allison Island, you already know the frustration: national window chains quote you a standard replacement, the city rejects the permit, and the crew vanishes. That is the exact problem we solve for Miami Beach homeowners every week. We do the Historic Preservation Board paperwork correctly the first time, because Ed Winslow’s name is on the door, and on every job we do.
Why Winslow Windows & Doors Is Miami Beach’s Preferred Custom & Geometric Windows Company
Miami Beach is a barrier island, and that changes everything about window work. Salt air off the Atlantic corrodes standard aluminum frames and non-marine-grade hardware in as little as two years along Collins Avenue and the Intracoastal. The building stock is a layered time capsule: 1930s Art Deco low-rises in South Beach, 1950s and 60s MiMo mid-rises, and 1970s through 90s condo towers running up the coast. Each layer demands a different approach, and each layer trips up contractors who only know mainland tract housing.
We founded Winslow Windows & Doors in 2011, and every technician who arrives at your Miami Beach address is background-checked, uniformed, and directly accountable to Ed Winslow. Homeowners here tend to have been burned before by vague estimates or no-show crews, so we work from written line-item quotes and never change the number mid-job. Our Miami Beach customers consistently point to one thing: a live person answers the phone at (863) 946-5039, any hour of the day or night. No voicemail loops, no call centers, no next-business-day callbacks.
We also understand the architectural-review reality that mainland contractors never see. On a contributing structure in the Flamingo-Lummus district, you cannot pull a permit until the board signs off on your replacement unit’s exact profile, muntin pattern, and finish. We file that submittal as part of our scope, and we schedule fabrication and installation around the review calendar so your opening is not left sitting empty for weeks.
Our Custom & Geometric Windows Services in Miami Beach
Every opening is different here. A radius window on a Lincoln Road storefront has nothing in common with a trapezoid transom on a Palm Island spec home. We measure, design, submit, and install each one as its own project, in Miami Beach, with Miami Beach’s codes and boards in mind.
Custom Impact Windows
Miami Beach sits inside Miami-Dade’s HVHZ wind zone, which means any window we install has to meet design pressures matched to the opening, and never a rating above +/-100 PSF. For homeowners replacing original steel casement or jalousie units in South Beach, custom impact windows give you permanent large-missile protection with no panels to hang before a storm. Unlike hurricane shutters, which sit in a closet until someone remembers to deploy them, impact glazing is already in the wall, already tested, and already protecting your home the moment a named storm spins up.

Geometric & Shaped Windows
Triangles, trapezoids, hexagons, pentagons, parallelograms. Geometric windows show up all over Miami Beach: eyebrow transoms above entry doors in Sunset Harbour, angular glass in 1980s condo lobbies along West Avenue, and dramatic rake windows on North Bay Road. Each shape gets its own shop drawing, its own structural analysis, and its own permit paperwork. We work regularly with PGT and CGI to engineer shaped units that hold their impact rating without sacrificing the silhouette the building demands.

Arched & Curved Windows
Arched windows are practically a civic requirement in the Art Deco Historic District. The rounded-top, single-lite over a three-lite lower sash look is written into the preservation guidelines, and the board will reject any radius that deviates from the original. We submit Florida Product Approval and Miami-Dade NOA paperwork alongside our shop drawings, showing the board exactly how the radius and divided-lite pattern match the historic profile. Then we build it. This is not a stock item any big-box aisle will ever carry.

Oversized Openings
Floor-to-ceiling glass, corner windows, and wide picture openings are common in the modern homes south of Fifth and the high-rise renovations along Collins Avenue. A large custom opening in Miami Beach runs $2,500 to $5,000 per window installed, and the engineering behind it matters: frame reinforcement, laminated glass selection, and anchoring schedules all respond to wind load calculations tied to your exact address and floor height. We handle the full engineering package for every oversized unit we install.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Miami Beach
We are an authorized installer for ViewLux, PGT, CGI, and CWS, which gives us direct access to factory engineering support, correct NOA documentation, and replacement parts without the usual distributor delays. For a Miami Beach homeowner facing a jalousie-to-impact conversion on a historic building, that factory relationship means our shop drawings come back with the right interlayers, the right muntin extrusion, and the right finish specified on the first pass. We stock common hardware locally so jobs on this side of the causeway move faster.
Common Custom & Geometric Windows Problems We See in Miami Beach Homes
- Jalousie windows that fail every Miami-Dade requirement. Louvered glass panels crank open and let in every tropical storm that crosses the island. They are the single most common replacement target in pre-1970 South Beach and Flamingo-Lummus buildings, and they offer zero impact resistance under current code.
- Salt-air corrosion on non-marine-grade hardware. On Collins Avenue high-rises, a standard stainless hinge can seize within two years of salt spray and ocean humidity. We specify marine-grade hardware on every beachfront or Intracoastal-adjacent project, even when the sash itself carries a passing large-missile rating.
- Permit rejection on historic-contributing structures. Contractors from mainland Miami or Fort Lauderdale often submit a standard double-hung replacement on a contributing Art Deco building, only to have the permit rejected for failing the board’s sightline rules. Then the crew sits idle, the opening sits open, and the homeowner pays for the delay.
- Glazing that passes structural review but fails aesthetic review. A unit can meet HVHZ design pressure and still be rejected because the divided-lite pattern or finish deviates from the board’s standards. That means the window gets manufactured once, rejected, and remade, adding weeks and a second fabrication charge to the job. We check both boxes before anything goes to production.
Pricing for Custom & Geometric Windows in Miami Beach, FL
Custom work costs more than stock work because there is no stock. A mid-range custom geometric impact window in Miami Beach runs $1,400 to $3,200 installed, and arched or radius units on historic buildings typically run $2,200 to $4,800 once Historic Preservation Board review, structural opening adjustments, and marine-grade hardware are included. A whole-home package of custom impact windows on a typical 2,500-square-foot Miami Beach house falls between $8,000 and $25,000 or more, depending on opening count, floor height, and whether the building is contributing or non-contributing. We give free in-home measures and written quotes. Call (863) 946-5039 to schedule yours.
What Custom & Geometric Windows Costs in Miami Beach
For reference, here is how custom geometric work prices out against more standard impact openings in the Miami Beach market:
- Impact windows generally: $800 to $1,500 per window installed
- Impact single-hung: $900 to $1,800 per window installed
- Large or custom openings: $2,500 to $5,000 per window installed
- Whole-home packages: $8,000 to $25,000 and up
- Historic-review submittal and permit support: included in our scope, not billed as a surprise line item
What moves the price in Miami Beach specifically? Opening count is the biggest driver, followed by floor height (a second-story radius window on a high-rise requires rigging and different anchoring than a ground-floor unit), and frame material. Aluminum with marine-grade finishes is the workhorse on the island. The board’s review does not add a separate charge from us, but it does add calendar time, and we schedule fabrication around it. Free in-home measure and written line-item quote always, with no change orders unless you change the scope yourself.
Florida Pays You Back
Miami Beach homeowners can stack several incentives that take the edge off custom window pricing. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, and impact-resistant windows and doors qualify for a Florida sales-tax exemption at the point of sale. On the federal side, the 25C energy credit covers 30% of product cost up to $600 per year on qualifying units. After a windstorm-mitigation inspection ($75 to $150), many Miami Beach homeowners see their windstorm premium drop by around 25% on the wind-related portion of their policy. Programs and carriers set final numbers, so we cannot guarantee a specific credit, but we can point you to the right documentation for every unit we install.
Getting a Custom Geometric Window Through Miami Beach’s Historic Preservation Board
Here is the part no other page will tell you, and it is the reason this process is different here than anywhere else in the county. On a contributing structure in the Art Deco Historic District, the board must sign off on your exact muntin profile, finish, and sightline proportions before the building department will even accept your permit application. That review adds six to eight weeks to the job calendar, and it happens before fabrication can start. A window contractor who has never worked in Miami Beach will submit a permit on day one and then discover the historic review requirement for the first time, weeks after the opening has been demoed.
We handle this differently. We assemble the submittal packet: Florida Product Approval documentation, Miami-Dade NOA paperwork, shop drawings showing the radius and divided-lite pattern, and finish samples. We file it. We track the agenda. And while the board’s review runs those six to eight weeks, we pre-cut the steel jamb and pre-fabricate the frame in our warehouse, so installation takes two days once the approval lands. Your opening is not sitting half-finished waiting on a committee.
On a 1930s South Beach apartment building near Ocean Drive, we replaced a failing arched jalousie window with an ECO Window Systems custom impact-rated arched unit using laminated glass interlayer. The board had to approve the radius and divided-lite pattern first, so we submitted the Florida Product Approval and Miami-Dade NOA paperwork with our shop drawings. While that review ran six weeks, we pre-cut the steel jamb and pre-fabricated the frame in our warehouse. Once the approval landed, installation took two days. That is the Miami Beach way, and it only works if the contractor knows the process before demo day.
How We Schedule Around the Review Calendar
Nothing about this process should surprise you. We walk the property, identify contributing versus non-contributing status with the city, and tell you up front whether the Historic Preservation Board will need to review your project. If they will, we build that six-to-eight-week window into the schedule and use it productively: engineering, frame fabrication, and glazing prep all happen in parallel. Then install happens in as fast as a single day once the units arrive. Custom fabrication runs 4 to 6 weeks after board approval, so your realistic calendar from permit submittal to finished install is roughly three to four months on a contributing building. On a non-contributing building, cut that in half.
The One We Call the Local Specialists For
Every city has its quirks. Miami Beach’s quirk is that your window has to pass a beauty contest and a hurricane test at the same time. That dual-compliance gauntlet distinguishes this island from Coral Gables, Fort Lauderdale, and even mainland Miami. If you live here, you need a contractor who understands that a window that passes the large-missile test can still be rejected because the muntin is one profile off from the original. We are that contractor. Custom & Geometric Windows in Miami Beach is not a template page to us; it is the work we do every day, on this island, with these boards and these codes.
We Also Serve Cities Near Miami Beach
Our Miami Beach crews regularly cross the causeways to serve homeowners in Miami, Coral Gables, Hialeah, and North Miami Beach. Dispatch and scheduling are coordinated from our Miami (South FL) office, so the same team that handles Historic Preservation Board submittals on the island can manage your mainland project from start to finish. Call (863) 946-5039 and tell us which city you’re in; we will route the right crew to your door.
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, on any contributing structure in the Art Deco Historic District or a locally designated historic district, the board must sign off on your exact muntin profile, finish, and sightline proportions before the building department will accept a permit application. We file the board submittal as part of our scope, with Florida Product Approval and Miami-Dade NOA documentation attached. Call (863) 946-5039 and we will check your property’s contributing status before you commit to anything.
Budget six to eight weeks for Historic Preservation Board review on a contributing building, then another four to six weeks for custom fabrication once approval lands. Installs themselves are usually done in one to two days. The review time is not lost time; we pre-fabricate frames and jambs in our warehouse while the board deliberates. Call (863) 946-5039 for a workback schedule tied to your actual opening.
Yes, in most cases. The board wants the sightlines, divided-lite pattern, and proportions to match the original, but the glazing itself can be laminated impact glass with today’s interlayers. A conversion like this normally runs $2,200 to $4,800 per opening on a contributing building, marine-grade hardware included. The key is submitting the right shop drawings the first time; we do that every week. Call (863) 946-5039 for a free measure and a written line-item quote.
Yes. Every custom geometric window we install in Miami Beach is engineered to the design pressure required for your exact opening and floor height, with a rating never above +/-100 PSF, and glazing packages that meet HVHZ large-missile standards. We supply the Florida Product Approval and Miami-Dade NOA documentation for every unit. Call (863) 946-5039 and we will show you the paperwork for the exact window we are proposing for your home.
We do. We assemble the board packet, file it, track the agenda, respond to staff comments, and pull the permit once the board signs off. Homeowners are not expected to navigate the preservation office alone on a Winslow job. Call (863) 946-5039 and we will explain the submittal for your building in plain English before anything gets filed.
Call Winslow Windows & Doors for a Free Custom Window Estimate in Miami Beach
If you own a historic Art Deco building in South Beach, a MiMo mid-rise near Allison Island, or a condo on Collins Avenue, we are the window company that knows exactly what your building requires and exactly who has to approve it. We are locally owned and owner-operated, with a published address and license number, and we back every job with the 36500-Day Done Right Promise: if it’s not done right, we make it right, period. Call (863) 946-5039 to schedule your free in-home measure and written quote. A live person answers, 24 hours a day, 7 days a week. We are the one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami Beach from our Miami (South FL) office 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.










Before
After
Before
After
Before
After