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 aren’t a decorative afterthought. They’re load-bearing, hurricane-rated, code-driven structural work, and the window you order has to pass a Miami-Dade inspection before it passes anything else. We install arched, radius, trapezoid, and oversized impact windows that carry a Miami-Dade Notice of Acceptance (NOA) from day one, because anything less won’t clear final inspection in this county. Ed Winslow built this company in 2011 on that kind of local precision, and we’re available around the clock at (844) 901-4551.
If you live anywhere from Allapattah to Coral Way to the Upper East Side, we already know your house. Miami’s CBS block construction, salt-heavy air, and HVHZ wind codes shape every custom window we order and install. We’re the Custom & Geometric Windows crew that measures twice, checks the NOA paperwork before you spend a dollar, and stands behind the finished opening for a century under our Done Right Promise.
Why Winslow Windows & Doors Is Miami’s Preferred Custom & Geometric Windows Company
A live person answers our phone 24 hours a day. Not a call center, not a voicemail loop. When you call about an oversized arched window in a 1970s CBS rancher off Flagler Street, you get someone who knows what an NOA is and why your opening needs one. We’ve been doing this since 2011, and Ed Winslow’s name is on the business, the trucks, and every job ticket. That’s a different kind of accountability than a faceless national chain hands you.
Our Miami customers keep calling us back because we quote honestly and don’t flinch at what older openings reveal. Out-of-square masonry jambs, corroded steel lintels, salt-damaged hardware on the previous retrofit. We’ve handled it in Little Havana, Buena Vista, and Shenandoah. Every technician who arrives at your door is background-checked and uniformed, so you know exactly who’s walking up before you unlock the deadbolt. And we never charge a trip fee inside Miami-Dade for a written estimate review.
Our Custom & Geometric Windows Services in Miami
We focus on four custom window categories that matter most in this market: impact-rated custom units, true geometric shapes, arched and curved openings, and oversized installations. Each one gets the same Miami-specific treatment, which starts with verifying the product holds a Miami-Dade NOA and the design pressure matches the opening’s actual wind zone.
Custom Impact Windows
In Miami, “custom” still has to meet HVHZ code. We order geometrically shaped units from PGT, CGI, and ViewLux that are engineered and tested for Miami-Dade’s large-missile impact protocol. A trapezoid or circle-top window that only carries Florida Statewide Product Approval will fail here, so we confirm the NOA number before the factory builds anything. That step alone saves Miami homeowners from paying for a custom window they legally cannot install.
Geometric & Shaped Windows
Half-rounds, octagons, triangles, pentagons. These openings are common in Miami’s mid-century and Mediterranean Revival homes, and they’re usually framed in concrete block just like the rest of the wall. We template every opening on site because block walls settle and shift over decades, and a square template from a paper drawing won’t match a jamb that’s drifted three-eighths of an inch. That’s the difference between a watertight window and a leak at the first August storm.
Arched & Curved Windows
Radius tops and full arch windows in Miami carry two risks that flat windows don’t: water intrusion at the crown and failure at the masonry header. We shore and waterproof the header before the retrofit, then laser-measure the curve so the new sash seats cleanly against the rough opening instead of forcing it. In older CBS construction, you can’t just caulk a bad radius and walk away. The salt air gets in and the aluminum starts corroding within a year.
Oversized Openings
Large fixed picture windows, sliding glass assemblies with geometric transoms, and wall-to-wall impact glass run $2,500 to $5,000 per opening in Miami, sometimes more for upper-floor work. These jobs usually mean reinforcing the header, resizing the rough opening, or both. We write that into the estimate as a line item with an allowance, not as a surprise change order after the wall is open. Call (844) 901-4551 and we’ll walk the opening with you before you sign anything.
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’re an authorized installer for PGT, CGI, CWS, and Es Windows repair in Miami, among eight premium lines we carry. For Miami’s geometric and arched openings, we lean on PGT and CGI most often because their custom shape program has the deepest NOA documentation in the catalog. That’s not brand loyalty. That’s knowing which manufacturer can deliver a tested, Miami-Dade-approved radius unit without a six-month engineering delay. We keep direct lines to local reps, so when your arch template needs a correction, it gets corrected fast, not routed through a national call queue.
Common Custom & Geometric Windows Problems We See in Miami Homes
- Miami-Dade inspection failure on paperwork. A custom arch impact window shows up with only a Florida Product Approval number. The inspector rejects it. The window goes back, the project stalls, and the opening sits covered in plywood. We vet every NOA before ordering, which is the single most important local practice in this county.
- Salt corrosion on custom hardware. Biscayne Bay and Atlantic air eats untreated steel hinges, operators, and fasteners inside two to three years. We specify stainless or heavily coated hardware on every custom geometric unit within a mile of the water, and we lube and set every moving part before we leave.
- Water intrusion at the radius point. Arched openings in CBS homes leak at the crown when the header wasn’t shored and waterproofed before the retrofit. We see this constantly in 1950s to 1980s construction. It’s a structural and flashing problem, not a caulk problem.
- Out-of-square masonry jambs. Concrete block settles. An arch template cut to a paper drawing won’t seat a window in a jamb that’s drifted. We measure every opening with a laser and template the actual radius on site, because forcing a square peg into an old Miami hole never holds up in a hurricane.
Pricing for Custom & Geometric Windows in Miami, FL
A single custom geometric impact window in Miami generally runs $900 to $1,800 installed for standard shapes, with true arches and oversized radius units landing between $2,500 and $5,000 per opening. Whole-home projects with multiple custom shapes and impact-rated glass typically start around $8,000 and range upward of $25,000 depending on count, floor height, and wind-zone requirements. What moves the number here more than anywhere else in Florida: the Miami-Dade NOA documentation, the masonry anchoring method, and whether the existing header needs shoring before the new window goes in. We provide free in-home measurements and a written line-item quote before you commit, with a free second opinion on any written estimate you’ve already received from another company.
What Custom & Geometric Windows Costs in Miami
Here’s the honest range for this market. Impact Windows in Miami generally run $800 to $1,500 per window installed. A custom impact single-hung goes $900 to $1,800. Large or custom geometric openings, especially arched units over 40 inches wide, land between $2,500 and $5,000. Whole-home packages with mixed geometric shapes and impact ratings run $8,000 to $25,000 and up. Miami’s pricing sits higher than Orlando or Jacksonville because of HVHZ compliance, NOA documentation, and masonry anchoring into CBS block. A second-story installation adds ladder and hoist time; a coastal exposure within a mile of Biscayne Bay adds a salt-corrosion hardware specification. Schedule a free in-home measure and we’ll give you a written quote that holds.
Florida Pays You Back
The incentives for doing this now in Miami are real. My Safe Florida Home has offered matching grants up to $10,000 for qualifying wind-mitigation upgrades, though the state controls the program and availability shifts year to year. Florida also exempts impact-resistant windows and doors from sales tax. On the federal side, the 25C energy credit covers 30% of product cost up to $600 per year on qualifying units. And the one that matters most in this county: a windstorm mitigation inspection, typically $75 to $150, can unlock insurance premium credits averaging around 25% on the windstorm portion of your policy after fully impact-rated openings are documented. We don’t guarantee any of these, because carriers and state programs set the final numbers. But we do prepare every job file with the NOA paperwork and inspection documentation your insurer will ask for.
The One Thing That Decides a Miami Invoice
When we open up a wall in an older Miami home, we find what’s actually in there. Undersized headers over original 1950s jamb openings. Corroded steel lintels that have been holding salt air longer than we’ve been alive. Failed waterproofing at the radius point of an arch. And once a permit is pulled, the current code applies, which sometimes means upgrading the header, adding strapping, or re-anchoring the entire rough opening into the CBS block. This is the single biggest reason a custom geometric window quote in Miami moves between the estimate and the final contract for Roof Replacement & Installation — Miami. We handle it with inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch the wall. That’s not a sales promise. That’s how Ed Winslow has run this company since 2011.
In Little Havana, we replaced a row of original 1960s jalousie windows with custom arched impact-rated units from PGT. The existing openings were slightly out of square, so our crew laser-measured each masonry opening, templated the radiused tops on site, and anchored the new frames into the CBS block with code-specified fasteners. Because every unit carried a Miami-Dade NOA, the homeowner cleared final inspection and documented the upgrade for their wind mitigation insurance credit.
Miami-Dade NOA: The Paperwork That Decides Your Inspection
Miami-Dade County is a High Velocity Hurricane Zone, and the county designates it with a stricter product-testing protocol than the Florida Statewide Product Approval system. A custom geometric impact window that carries only a Florida Product Approval number is legal in Tampa, Sarasota, and most of Broward County. It is not legal in Miami-Dade. Full stop. The product must specifically hold a Miami-Dade Notice of Acceptance, or your final inspection fails and you own a very expensive piece of glass you cannot install. Before we order a single custom arch, trapezoid, or oversized circle-top window, we confirm the NOA exists for that exact configuration, including the glass package and design pressure. This is the difference between an experienced Miami contractor and an out-of-market crew that learns the rule at inspection, with your plywood still up and your deposit already spent.
This page exists to tell you exactly which Miami-Dade NOA paperwork your custom arched or geometric impact window needs before you order, so you don’t pay for a window that fails a Miami inspection and flunks the insurance wind mitigation discount. Keep reading and you’ll know more than most salespeople who quote you.
The Miami Choice: Impact Windows vs. Hurricane Shutters
Shutters work until someone has to carry them up a ladder at 9 p.m. with a storm 40 miles off Homestead. Permanent impact-rated custom windows protect your house every hour of every day, with no panels to haul, no tracks to maintain, and no rush to close up before the bridges shut down. For a geometric or arched opening, shutters are also physically awkward. You’re building a custom metal accent over a window shape you paid extra to make beautiful. Impact windows keep the aesthetic clean and deliver the wind mitigation credit your insurance company actually wants to see. We install them once, test the seal, and then you don’t think about hurricane season again. That’s the permanent solution, and in Miami’s wind zone, it’s the one that pays back.
We Also Serve Cities Near Miami
Custom & Geometric Windows in Miami is our home market, and our crews regularly work Miami Shores, Miami Springs, Allapattah, and Brownsville. If you’re in one of those neighborhoods, the same NOA-first process applies, the same local crew shows up, and the same live person answers the phone at (844) 901-4551.
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
No. A Florida Product Approval number alone will not pass a Miami-Dade inspection. Custom geometric impact windows installed anywhere in Miami-Dade County must carry a Miami-Dade Notice of Acceptance (NOA) for the specific configuration, including glass package and design pressure. We verify the NOA before ordering any custom arched or shaped unit. Call (844) 901-4551 for a free opening evaluation and we’ll check the paperwork while we’re there.
Installing an arch or radius window in Miami costs 20% to 35% more than the same unit in Broward because of the Miami-Dade NOA requirement, the HVHZ design pressures, and the masonry anchoring into CBS block that dominates Miami’s housing stock. Broward homes more often have wood-frame openings, which are faster to retrofit. Miami’s concrete block walls demand code-specified fasteners, shored headers, and on-site radius templating. Get a precise line-item quote by calling (844) 901-4551, free of charge.
No. A Miami-Dade NOA makes the window eligible for documentation, but the insurance discount itself depends on a windstorm mitigation inspection, usually $75 to $150, and your carrier’s underwriting formula. Documented impact-rated openings typically produce windstorm premium credits averaging around 25% in this market, but carriers set the final amount. We prepare every job file with the NOA paperwork and inspection-ready documentation so you get credit for every qualifying unit.
Yes. We laser-measure the actual radius of the existing masonry opening, template the curve on site, and order the replacement sash to that exact shape. CBS block settles over decades, and an arch that once measured a true radius is often out of round by a quarter to three-eighths of an inch. A template cut from the original drawings won’t seat correctly, which is why we measure every opening physically before the factory cuts any glass. Schedule a free measure at (844) 901-4551.
An HVHZ rating describes the testing standard the product met, including large-missile impact and cyclic wind pressure. A Miami-Dade NOA is the county’s formal certificate that a specific product with a specific glass package passed HVHZ testing and is approved for installation in Miami-Dade. The NOA is the document you show the inspector and your insurance company. Products can carry HVHZ test reports without holding a current Miami-Dade NOA, and those products cannot be legally installed in this county.
Call Winslow Windows & Doors for Your Free Miami Estimate
We’re the one down the road. Locally owned by Ed Winslow since 2011, with a published address, a license number you can look up, and a live person answering the phone at (844) 901-4551 no matter when you call. We’ll measure your custom geometric or arched openings, verify the Miami-Dade NOA paperwork before you order, and hand you a written line-item quote with no trip charge inside Miami-Dade. Upfront pricing, no surprises on the invoice, and the Done Right Promise behind every window we install. Call today to schedule your free estimate.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Miami since 2011.