Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Custom & Geometric Windows Across Miami
Custom and geometric windows in Miami typically cost $2,500-$5,000 per opening installed, and the county’s NOA requirement means the unit must be engineered for hurricane impact before it ever gets fabricated, not after. That’s a different conversation than you’ll have in Broward or Palm Beach. If you own a home in Hialeah, Little Havana, Brickell, or out on acreage near the Redland, you’re dealing with Miami-Dade’s stricter standard, and we scope every job around it from the first measurement. Call (863) 946-5039 and we’ll walk your openings, explain what’s actually buildable, and give you a written quote. Custom & Geometric Windows in Miami are what we do every week, and we’ve seen what happens when a window gets specified wrong at the start.
Why Winslow Windows & Doors Is Miami’s Preferred Custom & Geometric Windows Company
Ed Winslow’s name is on the door, and on every job we do. We’re not a call-center brand that subs your window out to the lowest bidder. Since 2011, we’ve been owner-operated and locally accountable, which matters when the county inspector is standing in your living room asking for NOA paperwork that has to match the exact configuration in your opening.
Around Miami, we regularly hear from homeowners who got a quote from a big-box installer for Impact Windows in Miami, paid a deposit, and then waited six weeks only to learn the window they ordered wasn’t approved for HVHZ large-missile impact. That’s a delay that pushes you into hurricane season with a rough opening still boarded up. Our team checks the NOA on the actual product number before we ever write the order. Main roads like Calle Ocho, Coral Way, and Biscayne Boulevard are short drives for us, and so are the neighborhoods off Kendall Drive and Bird Road. We show up on time, in uniform, background-checked, and we answer the phone when you call. A neighbor you can call at 2 a.m., and someone will actually answer.
We carry the 36500-Day Done Right Promise on every opening we touch. If it’s not done right, we make it right. No ticket numbers, no voicemail loops.
Our Custom & Geometric Windows Services in Miami
Custom shapes in Miami are not a one-size ordering exercise. The opening itself, the wall system, the wind zone, the floor height, and the NOA listing all have to line up before the window can exist. These are the four services we run most often across Miami.
Custom Impact Windows
A custom impact window in Miami is a window that carries a Miami-Dade NOA for the exact size and shape you’re installing. It’s not the same product you’d buy off the shelf in Doral for a standard bedroom opening. When we quote a custom impact window, we’re specifying laminated glass with a structural interlayer, a frame built to take the design pressure at your elevation, and anchoring details that actually match the masonry or frame condition behind the stucco. For a CBS home in Westchester or a high-rise unit in Edgewater, that design pressure number changes with floor height and exposure, and the window has to be ordered to match.
Geometric & Shaped Windows
Triangles, hexagons, pentagons, parallelograms that follow a roofline in a 1960s modern home off Sunset Drive, those shapes have to be framed, fabricated, and weatherproofed differently than a rectangular sash in Shingle, Tile & Metal Roofing - Miami projects. Miami homes carry a lot of mid-century geometry in places like Morningside and Shenandoah, and the original fixed glass in those openings usually has no structural glazing at all. We rebuild the rough opening, set the laminated glass into a frame engineered for the actual wind load, and finish it so it sheds water instead of trapping it.
Arched & Curved Windows
An arched top over a front door in Coral Gables or a curved radius window on a bay in Coconut Grove is a specialty within a specialty. The glass has to be bent or segmented, the frame has to follow the curve, and the NOA has to apply to that curved configuration. If a radius window isn’t marine-grade in Miami’s salt air, the gasket breaks down fast. We’ve pulled oxidized aluminum jamb out of curved openings within a mile of Biscayne Bay that crumbled in our hands after eight years of exposure.
Oversized Openings
When you’re replacing a whole jalousie wall or turning a single-hung into a floor-to-ceiling fixed panel overlooking a canal or a pool, the window stops being a window and starts being a structural assembly. Oversized openings in Miami require heavier glass, stronger mullions, and in many cases a beam across the header to carry the load. These jobs run $2,500-$5,000 per opening and often require an engineer’s review before fabrication. We handle that, including the paperwork the county wants to see.
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 what we trust to hold up in Miami’s wind zone, and we order from manufacturers who keep NOA documentation current. PGT and CGI are the two brands we specify most often for Custom & Geometric Windows in Miami because both carry deep lines of Miami-Dade NOA-listed configurations, including curved and shaped units. ViewLux also produces some excellent fixed geometric glass for accent openings and clerestory work. We don’t push a brand because the margin is higher. We spec the brand whose NOA covers the opening we’re building. If a supplier changes an approval or drops a configuration, we catch it before you pay for it.
Common Custom & Geometric Windows Problems We See in Miami Homes
- NOA mismatch at permitting. A window gets specified under a Florida Product Approval because that’s what the software defaulted to, but Miami-Dade requires the NOA, and the engineer has to re-run the design pressure for HVHZ. The project sits for three or four weeks while the paperwork catches up.
- Salt-air gasket failure on curved units. Within a mile of Biscayne Bay, standard aluminum frames oxidize and seals break down in eight to ten years. Arched and radius windows fail at the gasket line first because the curved geometry puts uneven pressure on the seal. Marine-grade frames are the only honest fix.
- Old jalousie rough openings. Jalousie louvers in a 1960s CBS home in West Little Havana or Hialeah have no design pressure rating and no structural buck for a modern impact window. The rough opening has to be rebuilt and bucked into the block, which adds labor but is the difference between a window that passes inspection and one that leaks.
- Acreage buildings scoped like the main house. A geometric window in a detached workshop, ADU, or metal shed off Krome Avenue needs different buck attachment and wind-mitigation details than a window in a concrete-block main house. Scoping them the same gets the wrong glazing ordered.
Pricing for Custom & Geometric Windows in Miami, FL
Custom impact windows in Miami run $800-$1,500 per window for standard rectangular openings, while true geometric shapes and oversized openings push into the $2,500-$5,000 range. A whole-home package on a typical Miami CBS ranch runs $8,000-$25,000 depending on opening count, wind zone, and frame material. The price moves on four things: how many openings you’re doing, what design pressure the NOA requires for your elevation, whether the rough openings need rebuilding, and whether the glass has to be curved or shaped rather than flat. A hexagonal window under nine square feet still carries the same NOA requirement as a big slider, but it costs more per square foot because the fabrication run is smaller. We measure, check NOA, and hand you a written, line-item quote before any deposit. Call (863) 946-5039 to schedule your free in-home measure.
We Also Serve Cities Near Miami
Our crews run regularly to Miami Beach, Coral Gables, Hialeah, and Miami Gardens, and we know the local rules in each: Art Deco district review in South Beach, historic district constraints in Coral Gables, heavy CBS stock in Hialeah. If you’re in one of those cities, the same NOA standard applies and the same crew takes care of you.
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. Miami-Dade requires a Notice of Acceptance on every replacement window regardless of size or shape. There is no size exemption below nine square feet for replacement units, so a small triangular accent window still has to be engineered for HVHZ and listed. The NOA applies to the configuration, not just the glass area. Call (863) 946-5039 and we’ll verify the exact opening before you order anything.
No. A jalousie opening was built for a lightweight louvered frame with no impact rating. An arched impact window weighs significantly more and carries a design pressure load the original buck was never built to hold. The rough opening has to be reframed and bucked into the masonry before the new unit can be set. Skipping that step gets you a window that fails inspection, leaks, and may not hold under wind load. We rebuild the opening as part of the job, not as an extra surprise on the invoice.
Yes, impact-rated geometric windows with proper NOA documentation count toward your wind mitigation inspection. The inspector looks for verified impact openings in the main dwelling and any finished detached structures. If the geometric window in your detached workshop or ADU is not NOA-listed, it won’t count, and the inspector will flag it. The windstorm premium credit after a passing inspection typically averages around 25% on the windstorm portion, though your carrier sets the final number. Call (863) 946-5039 and we’ll make sure every opening you install carries the paperwork to match.
Laminated large-missile glass can be fabricated in curved and oval configurations, but the radius is limited by the glass bending process and the NOA listing has to cover that exact curve. PGT and CGI both make arched impact windows with laminated interlayers for Miami-Dade applications, though the lead time runs longer than a flat rectangular unit because the bending and tempering process happens before the laminate is assembled. We confirm the NOA on the curved configuration before we quote it, so you’re not waiting on a window that was never approved to exist.
Yes. The county treats the main house under one set of structural and wind-load requirements, but a detached workshop, ADU, or outbuilding may fall under an accessory-structure classification with different anchoring and buck attachment requirements. If the detached building is a steel or wood frame rather than CBS, the window has to be anchored to match that wall system, and the wind mitigation inspector will look at it separately. We scope the detached building as its own structure, not as an afterthought, before we write the quote. Call (863) 946-5039 to schedule a free measure on the whole property.
What Custom & Geometric Windows Costs in Miami
Impact windows in Miami generally run $800-$1,500 per window installed for standard rectangular openings. A single-hung impact window lands between $900 and $1,800 depending on size. Large or custom openings, including arches, curves, and geometric shapes, run $2,500-$5,000 each. Whole-home packages on a typical Miami CBS house range from $8,000 to $25,000 plus. What moves the price: how many openings you’re doing, the wind zone and floor height at your address, whether the frame is aluminum or vinyl, whether the glass has to be curved or shaped, and whether the rough openings need reconstruction. We measure in person, check the NOA for your exact openings, and give you a written line-item quote before any work starts. Upfront pricing, no surprises on the invoice.
Florida Pays You Back
The incentives stack if you know what to claim. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, and impact windows and doors are a primary category. Florida also exempts impact-rated windows and doors from sales tax at the point of sale. On the federal side, the 25C energy credit covers 30% of the product cost, up to $600 per year, on qualifying energy-efficient units. And the windstorm-premium credit after a passing wind-mitigation inspection, which typically costs $75-$150, averages around 25% on the windstorm portion of your premium. No guarantees, programs and carriers set the final numbers, and you should confirm your eligibility with the program administrators. But these are real, current credits that Miami homeowners use every week, and we’ll point you to the right paperwork.
Miami-Dade NOA: The Difference That Only Applies Here
Miami-Dade County is the only county in Florida where every replacement window must carry a Miami-Dade Notice of Acceptance, a certification stricter than the Florida Product Approval accepted in neighboring Broward and Palm Beach counties. That means a geometric window here has to be engineered for a tall, irregular shape and NOA-listed for HVHZ large-missile impact at the same time. It’s not either/or. We check the NOA on the actual product number before we order, because the paperwork has to match what goes into the opening. Around Miami, we’ve watched projects stall for weeks at permitting because the window was specified under the wrong approval, and the homeowner paid for the delay in hold-up fees and missed construction windows. We don’t let that happen on our jobs.
We recently rebuilt a jalousie wall in a 1960s CBS home in West Little Havana into a row of arched, oversized custom impact windows from PGT with laminated glass interlayers and deep jamb extensions as part of a full Roof Replacement & Installation - Miami scope. The original louvers had no design pressure rating and were letting salt air eat the sash, so the rough openings had to be completely reframed and bucked into the concrete block before the new NOA-rated units could be set. The job took two extra days just to reinforce the masonry but cut the homeowner’s insurance renewal premium by roughly a third. That’s the tradeoff in this county: more work up front, a window that actually holds, and a premium reduction the carrier can’t argue with.
If you’re on acreage in the Redland or down toward Homestead, county permitting, not city permitting, controls your job. Septic and well setbacks can constrain where and how a window gets reinforced, and long material hauls with heavy glass on graded roads change how we schedule delivery and staging. We scope grading and drainage around the opening before we write the quote, because a window set into an open lot with no drainage plan is a leak waiting to happen.
One more thing worth knowing: impact windows beat hurricane shutters for a Miami homeowner who wants permanent protection. Shutters only work if someone is home to hang them, and they do nothing for energy cost, salt-air degradation, or daily light. An NOA-rated impact window is always on duty, no panels to drag out of the garage in a Category 3 warning. We don’t sell shutters, we just replace the windows that make shutters unnecessary.
Common Custom & Geometric Windows Problems We See in Miami Homes
Here’s what we find in the field, not in a brochure.
- Permitting stall. Custom shapes in Miami-Dade often fail at the permitting stage when the window is specified under a Florida Product Approval instead of a Miami-Dade NOA. Then the engineering is re-run for HVHZ design pressure while the project waits. We verify NOA before ordering.
- Wrong glazing on acreage buildings. On acreage lots, geometric windows in detached ADUs or outbuildings get scoped with the wrong glazing because the structure is mistakenly treated like the main CBS house. Wood or metal-frame sheds need different buck attachment and wind-mitigation details.
- Coastal frame oxidation. Oversized arched or curved windows near the coast fail from salt-air gasket breakdown within eight to ten years if the frame isn’t marine-grade. Often the replacement requires full rough-opening reconstruction because the original jamb has oxidized to the point it won’t hold a screw.
- Jalousie rebuilds. Old jalousie windows in Hialeah and West Little Havana provide zero impact resistance and near-zero energy performance. Replacing them isn’t a frame swap, it’s a rough-opening reconstruction, because modern impact units carry far greater weight and need reinforced buck attachment into the masonry.
We Also Serve Cities Near Miami
The same NOA standard applies across Miami-Dade, so if you’re in Miami Beach, Coral Gables, Hialeah, or Miami Gardens, the process is identical: measure, verify NOA, order, permit, install, inspect. Our Miami office coordinates scheduling, and our crews run those roads every week. Call (863) 946-5039 and we’ll put you on the schedule.
Call Winslow Windows & Doors for a Free Estimate
If you’re planning to replace a geometric window, an arched opening, or a jalousie wall in Miami, start with a measurement and a written quote through our Miami Therma Tru service. We’ll walk every opening, check the NOA, scope the rough opening work if it’s needed, and give you line-item pricing before any deposit changes hands. Ed Winslow’s name is on the door, and on every job we do. The one down the road. Call (863) 946-5039 to schedule your free estimate.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami and Miami-Dade County 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.