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 Three Lakes
Custom and geometric window installations in Three Lakes are governed by one of the toughest wind-load codes in the United States: the Miami-Dade High-Velocity Hurricane Zone (HVHZ). Every shaped opening, whether it’s a half-round arch, a circular porthole, an octagonal accent, or an oversized picture window, must carry a Miami-Dade Notice of Acceptance (NOA) or a Florida Product Approval if the permit is going to pass. Generic national units that clear the standard Florida Building Code still fail in Three Lakes. That’s the local reality, and it’s why we stock and install NOA-listed laminated impact glass from brands engineered specifically for South Florida. If you’re planning a Custom & Geometric Windows project on a Three Lakes home, call (904) 478-8983 and we’ll walk you through what the code actually requires for your specific opening.
Why Winslow Windows & Doors Is Three Lakes’s Preferred Custom & Geometric Windows Company
Winslow Windows & Doors has been installing windows, doors, and Roof Replacement & Installation - Three Lakes across South Florida since 2011, and the Three Lakes calls we take nearly always trace back to the same problem: a homeowner was sold a replacement quote that can’t clear Miami-Dade permitting. Ed Winslow’s name is on the business, and Ed’s name is on every job we do. When a Three Lakes homeowner calls about a geometric window, the person on the other end of the line knows how to answer the question. We don’t route you to a call center. A live person picks up, 24 hours a day, seven days a week.
Three Lakes customers have told us the same thing more times than we can count: another company gave them a pretty number for a shaped window that turned out to be non-HVHZ-compliant. We take a different route. We quote the window that will actually pass inspection, pull the permit, and stand behind it with our Done Right Promise. If it’s not done right, we make it right. That’s not a marketing line. It’s a standard of accountability written into every job.
Our technicians are background-checked and arrive in uniform. Before the first handshake, you know exactly who is at your door. And because Ed publishes the company’s address and license number, there’s no shell company between you and the person responsible for your windows. We answer calls at 2 a.m. the same way we answer them at 2 p.m.: with a real person and a straight answer.
Our Custom & Geometric Windows Services in Three Lakes
Custom Impact Windows
Custom Impact Windows in Three Lakes are not an option; they’re the baseline. The HVHZ designation means any window opening, whether it’s a standard rectangle or a complicated shape, must meet Miami-Dade wind-load standards as documented by an NOA or Florida Product Approval. We configure laminated glass and reinforced frames to the specific design pressure of each opening. For Three Lakes homes, that usually means full-frame replacement rather than a pocket insert, because the original aluminum frames from the 1970s through early 1990s were never engineered for impact glazing.
Geometric & Shaped Windows
Geometric windows bring light and architectural character to Three Lakes living rooms and entries, but they also create structural loading challenges that a standard rectangle doesn’t. Triangles, pentagons, hexagons, and trapezoids require engineered frame reinforcement and laminated impact glass matched to the opening’s geometry. We build those openings to Miami-Dade code with NOA-listed units. If a company quotes you a geometric window without referencing the NOA number, the quote is worthless before the permit is even filed.
Arched & Curved Windows
Arched and curved window replacements in Three Lakes sit squarely inside the HVHZ, which means the curved glass or muntin bar assembly still has to handle a design pressure rating specified for the opening’s size and height. We work with brands like PGT and ES Windows that maintain active Miami-Dade NOAs on arced configurations. Curved units take longer to fabricate, typically four to six weeks, but once they arrive, installation on most Three Lakes openings happens in a single day.
Oversized Openings
Oversized openings in Three Lakes, such as fixed picture windows spanning eight, ten, or twelve feet, are where wind-load math gets genuinely demanding. The wider the span, the higher the design pressure requirement and the heavier the laminated glass. We engineer oversized openings with reinforced mullions and impact-rated frames that pass HVHZ inspection. Homeowners often discover during the quote process that their existing header was never sized for an impact unit, which is exactly the kind of detail a cheap estimate won’t catch until the permit gets rejected.
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 Three Lakes
Winslow Windows & Doors is an authorized installer for eight premium brands offering Shingle, Tile & Metal Roofing - Three Lakes, including ES Windows, ECO Window Systems, Mr-Glass, and Therma-Tru. Not all of them maintain active Miami-Dade NOAs on geometric and arched configurations, which is why we match the brand to the opening rather than forcing a square peg into a round hole. For Three Lakes customers, we can often pull existing stock from our warehouse for faster turnaround on common sizes, while custom shapes are ordered to specification and delivered ready for HVHZ-compliant installation. The brand name matters less than the documentation behind it; every unit we put in a Three Lakes home carries the approval number required to pass Miami-Dade inspection.
Common Custom & Geometric Windows Problems We See in Three Lakes Homes
- Non-compliant national shaped units. A homeowner or another contractor picks an arched or circular window off a showroom floor that meets Florida Building Code but carries no Miami-Dade NOA. The permit is denied before the jamb is touched, and the homeowner is stuck with either a restocking fee or a non-permitted opening.
- Jalousie windows in secondary bedrooms and entry vestibules. Three Lakes homes built in the 1970s and 1980s often still have louvered jalousie glass in bedrooms and entries. These units offer zero impact resistance, cannot be reglazed into compliance, and must be demolished and fully replaced with laminated impact windows. Homeowners regularly call expecting a reglazing quote and are surprised to learn the entire opening needs reframing.
- Aluminum frame oxidation from salt-laden humidity. Three Lakes sits in a humid, salt-heavy air corridor. Original single-pane aluminum frames oxidize and weatherstripping degrades within a few years, far faster than in temperate climates. By the time a homeowner notices the corrosion, the structural integrity of the frame is already compromised and a full replacement is the only HVHZ compliant path.
- Insurers rejecting non-impact geometric glass. We occasionally hear from Three Lakes homeowners who installed a non-impact geometric picture window years ago, then tried to renew their windstorm coverage. The insurer refuses the wind mitigation credit, and in some cases, the policy. The fix is replacing that opening with an NOA-listed impact unit and scheduling a wind mitigation inspection.
Pricing for Custom & Geometric Windows in Three Lakes, FL
A standard impact window replacement in Three Lakes generally runs $800 to $1,500 per window installed. Impact single-hung units land between $900 and $1,800. Large or custom-shaped openings, like arched picture windows or oversized fixed glass, typically range from $2,500 to $5,000 per unit, depending on the geometry and the design pressure required. Whole-home packages across a Three Lakes concrete block home often fall between $8,000 and $25,000 or more, driven by opening count and how many of those openings are non-standard shapes.
If you want a number for your specific Three Lakes home, call (904) 478-8983. We’ll schedule a free in-home measure and give you a written, line-item quote. No vague ranges. No change orders after the fact.
We Also Serve Cities Near Three Lakes
Our crews serve Three Lakes directly and regularly work in the surrounding South Florida communities of Coral Gables, Little Gables, Miami, and Miami Beach. The HVHZ requirements are consistent across these areas, which means the same NOA documentation that clears a permit in Three Lakes clears one in Coral Gables or Miami Beach. If you’re just outside Three Lakes, call (904) 478-8983 and confirm your home falls inside our service area; the answer is usually yes.
Serving Three Lakes, FL - Our Local Coverage Area
We’re based in the Three Lakes 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 Three Lakes
Yes. In Three Lakes, every replacement window opening, regardless of shape, falls under the HVHZ and must carry either a Miami-Dade NOA or a Florida Product Approval to pass permit review. There is no exemption for arched, circular, octagonal, or oversized openings. A shaped unit without an active NOA gets rejected at the permit counter, so insisting on one from the start saves you time and money. Call (904) 478-8983 to confirm your shaped window carries the right approval before you buy.
No. Jalousie windows, the louvered glass slat units common in 1970s and 1980s Three Lakes homes, cannot be brought into HVHZ compliance through reglazing or any retrofitting. The frames lack the structural capacity to hold impact glazing, and no Miami-Dade approval exists for a retrofitted jalousie. The opening must be fully demolished, reframed, and fitted with an NOA-listed laminated impact window. Call (904) 478-8983 and we’ll tell you honestly whether your jalousies need full replacement or whether another repair path exists.
A documented, NOA-listed custom geometric impact window adds directly to your wind mitigation inspection score, because the inspector can verify the Miami-Dade approval number, the laminated glass marking, and the anchoring method. That typically supports a windstorm premium credit. Non-impact geometric glass, by contrast, provides no mitigation credit and can trigger a failing inspection finding that raises your premium. The inspection itself costs roughly $75 to $150 in South Florida; we recommend scheduling it after your permit closes.
A Miami-Dade Notice of Acceptance is the stricter of the two, backed by Miami-Dade’s own testing protocols for the HVHZ. A Florida Product Approval meets statewide code but may not clear the higher wind-load requirements of the HVHZ unless it specifically lists Miami-Dade compliance. In Three Lakes, the permit office accepts both, but only if the Florida Product Approval documentation shows the unit was tested to HVHZ standards. When we quote a window for your Three Lakes home, we include the approval number so the permit reviewer can verify it at a glance.
PGT, ES Windows, and ECO Window Systems all maintain active Miami-Dade NOAs on selected arched, geometric, and oversized impact configurations. Therma-Tru and Mr-Glass also appear in the approval database for specific openings. The key is matching the exact size and shape to the approval document, because an approval doesn’t cover every dimension. Call (904) 478-8983 and we’ll tell you which brand and configuration actually clears an HVHZ permit for your specific opening.
What Custom & Geometric Windows Costs in Three Lakes
A standard impact window replacement in Three Lakes runs $800 to $1,500 per window installed. Impact single-hung units fall between $900 and $1,800. Large or custom-shaped openings, such as arched picture windows or oversized fixed glass, land between $2,500 and $5,000 per unit. Whole-home packages for a typical Three Lakes concrete block home range from $8,000 to $25,000 and up, depending on opening count and how many of those openings are non-standard shapes.
What moves the price in Three Lakes specifically? Opening count, first. A 1970s concrete block home with twelve original aluminum openings will cost more than a townhome with six. Floor height also matters: wind pressure increases with height above grade, so second-story windows carry higher design pressure requirements and heavier glass. Frame material matters: reinforced aluminum and vinyl both have NOA listings, but the reinforcement details vary by brand and configuration. Custom shapes, by definition, cost more than stock rectangles because for the fabrication, tooling, and testing all converge on a single unit.
Everyone’s home is different, which is why we don’t quote over the phone with a calculator. We come out, measure every opening, and give you a written line-item quote. Call (904) 478-8983 for a free in-home measure.
Florida Pays You Back
Three Lakes homeowners have access to three real incentives that offset the cost of impact windows. First, the My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact windows and doors. Second, Florida sales taxes are exempt on impact-resistant windows and doors, which typically saves hundreds of dollars on a whole-home project. Third, the federal 25C energy credit applies to qualifying units at 30% of product cost, up to $600 per year.
On top of those, windstorm-premium credits after a passing wind mitigation inspection average roughly 25% on the windstorm portion of your policy. The inspection itself runs $75 to $150. We don’t set grant amounts, tax exemptions, or carrier policies, but we give you the documentation needed to qualify: NOA numbers, laminated glass markings, and a permit signoff showing HVHZ compliance. That paperwork matters. Without it, the insurer has no verified record that the windows are impact-rated.
One more comparison worth noting: impact windows versus hurricane shutters. Shutters require someone to be home before the storm, and they do nothing between storms. Impact windows provide permanent protection with no panels to hang, no tracks to maintain, and no storage to worry about. For a Three Lakes home, where the hurricane threat is an annual reality, permanent impact windows make more sense than reactive shutters.
The code in Three Lakes isn’t a suggestion. The HVHZ designation is a legal construction requirement, and every permit that clears a Three Lakes inspection proves the work was done to that standard. If you’re weighing quotes, the first question to ask is: “Show me the NOA or Florida Product Approval for exactly this window in exactly this size.” A quote that can’t answer that question is a quote you shouldn’t sign.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving South Florida since 2011.
Call (904) 478-8983 for a free estimate on your Custom & Geometric Windows project in Three Lakes. A live person answers, day or night. Upfront pricing. No surprises on the invoice. The one down the road.
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.