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 Three Lakes
Custom and geometric windows in Three Lakes, FL typically cost $2,500 to $5,000 per opening for impact-rated units, with whole-home packages running $8,000 to $25,000 or more. Every custom window installed in Three Lakes must carry a Miami-Dade Notice of Acceptance (NOA) because this community sits entirely within the High-Velocity Hurricane Zone (HVHZ). That’s not a suggestion, it’s the law, and it’s the first thing we check before we quote a single window. If you’re planning a shaped window project here, call us at (850) 721-1218 for a free in-home measure and a written quote that will actually pass permit review.
Our Custom & Geometric Windows team works throughout Three Lakes regularly, from the neighborhoods along SW 112th Avenue to the communities near Killian Parkway and the residential pockets just east of the Turnpike. We know which permit reviewer looks at which line of the NOA documentation, and we know what happens when a window order comes in with the wrong approval type. That local knowledge saves you weeks and keeps your project from dying on a desk at the building department.
Why Winslow Windows & Doors Is Three Lakes’s Preferred Custom & Geometric Windows Company
Ed Winslow started this company in 2011, and Ed’s name is on the door and on every job we do. We’re not a faceless franchise that rotates crews through South Florida. Our technicians are background-checked, uniformed, and they show up knowing exactly what a Three Lakes CBS home needs, because they’ve worked on dozens of them. When a homeowner near Kendall Drive or south of Miller Drive calls about replacing an original jalousie window with a custom arched unit, the person answering the phone already understands the HVHZ requirement. That’s the difference between a local specialist and a call center that’s never seen a Miami-Dade permit application.
We hold our work to the Done Right Promise. If it’s not done right, we make it right, period. That’s a standard of accountability written into every job. Our published address and license number are on every estimate, so you know exactly who you’re dealing with before the first truck pulls up. And when you call, a live person answers. At 2 p.m. or 2 a.m., you get a human being, not a voicemail loop.
Our Custom & Geometric Windows Services in Three Lakes
Custom Impact Windows
The pre-1992 homes throughout Three Lakes were built with single-pane aluminum or jalousie windows that simply cannot handle the wind loads this area faces. When we replace those with custom impact windows, every unit is sized, ordered, and installed to carry a Miami-Dade NOA number specific to the configuration. A stock Florida Product Approval window will get your permit rejected. We order the right rating the first time.

Geometric & Shaped Windows
Triangles, trapezoids, circles, octagons, pentagons: Three Lakes has plenty of homes from the 1970s through 1990s where builders used shaped windows as architectural accents, many of them now leaking or corroded from decades of humidity and salt air. We fabricate geometric shapes in impact-rated glass with NOA documentation for each angle and dimension. Your home keeps its character, and your windows meet the code.

Arched & Curved Windows
Replacing an arched jalousie window is one of the most common projects we handle in Three Lakes. Homeowners want to keep the look but lose the leaks and the flimsy aluminum frame. We’ve done this exact swap in CBS homes from the Kendale Lakes area to the streets feeding into Three Lakes Park. The curved glass gets laminated and heat-strengthened to meet the design pressure rating for the opening, and the NOA is verified before we file for the permit.

Oversized Openings
Picture windows that span eight, ten, twelve feet, or sliding glass wall openings that demand custom framing and high design pressures, these are specialty projects and Three Lakes has plenty of them. Oversized openings in the HVHZ require engineering that accounts for elevation, exposure, and the specific wind zone. We don’t guess. We calculate, document, and install units that will hold their line when a hurricane pushes every square foot of glass inward.

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
We install and service custom and geometric windows from PGT, Mr-Glass, all of which fabricate HVHZ-compliant units with the documentation Miami-Dade requires. When a Three Lakes homeowner needs a replacement sash or a new geometric unit, we order from these manufacturers because their NOA paperwork is consistent and verifiable, which keeps your permit moving and your insurance documentation clean. Parts availability for these brands is dependable in the Miami-Dade market, and we coordinate ordering to minimize the time your opening sits empty.
Common Custom & Geometric Windows Problems We See in Three Lakes Homes
- Permit rejection due to wrong product approval. A contractor orders a standard Florida Product Approval geometric window, not an HVHZ-specific NOA-rated unit. Miami-Dade’s building department rejects the application outright, and the homeowner is stuck with a window they can’t legally install.
- Inadequate design pressure on custom shapes. An arched or curved window isn’t engineered for the required design pressure, so the frame deflects and water intrudes during a storm. We see this on cheaper installs where the shape was ordered without verifying the engineering for the specific opening.
- Corroded original frames on 1970s-1990s homes. The aluminum frames and jalousie hardware on original Three Lakes windows have spent decades in high humidity with standing water nearby after storms. The seals fail, the hardware binds, and the glass rattles, which is a lousy thing to discover during a hurricane warning.
- Missed insurance credits from poor documentation. A homeowner installs impact-rated custom windows but nobody documents the NOA and wind mitigation features properly. The insurer doesn’t apply the Florida Statute 627.0629 credits the homeowner is owed, and the premium savings never materialize. We provide the documentation package every time.
Pricing for Custom & Geometric Windows in Three Lakes, FL
Here’s where most homeowners want real numbers, so let’s be direct. A standard impact-rated custom window in Three Lakes runs $1,300 to $2,500 installed, depending on size and design pressure requirements. A custom arched or geometric impact unit typically lands between $2,500 and $5,000 per opening because the glass is fabricated to a specific radius or angle, and the NOA documentation is generated per configuration. Replacing every window in a typical Three Lakes CBS home with impact-rated custom or geometric units usually falls between $10,000 and $22,000. What moves the price: the number of openings, whether the shapes are standard rectangles or true geometrics, the wind load at your specific elevation, and whether your home’s rough openings need reframing. We give every Three Lakes homeowner a free in-home measure and a written line-item quote before any work starts. No change orders, no vague allowances. Call (850) 721-1218 to schedule yours.
What Custom & Geometric Windows Costs in Three Lakes
Let’s break this down by project type so you have useful anchors. Standard impact windows in Three Lakes generally run $800 to $1,500 per window installed. An impact single-hung window lands between $900 and $1,800. Large or custom openings, including most geometric and arched shapes, range from $2,500 to $5,000 per opening because the glass has to be fabricated to your dimensions and engineered for the HVHZ design pressure at your home’s elevation. Whole-home packages for a typical Three Lakes CBS house start around $8,000 and can exceed $25,000 when you’re replacing a dozen or more openings with custom shapes.
Three things push the price up in Three Lakes specifically. First, the NOA requirement means every unit has to be documented for Miami-Dade, which costs more than a generic Florida Product Approval product. Second, the wind zone demands higher design pressures than homes further inland, so the glass and frames are heavier and more expensive. Third, geometric shapes require fabrication lead time and precise measurements, there’s no margin for error on a triangle or an arch. Our free in-home measure and written quote gives you the exact number for your house, and that number doesn’t change once work starts.
Florida Pays You Back
If you’re replacing windows in Three Lakes, you should know about the incentives on the table. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact-rated windows and doors. Florida also exempts impact-resistant windows and doors from sales tax, which is real money on a $15,000 project. The federal 25C energy tax credit can return 30% of the product cost, up to $600 per year, on qualifying energy-efficient units. And after a wind-mitigation inspection, which typically runs $75 to $150, many Three Lakes homeowners see windstorm premium credits averaging around 25% on the windstorm portion of their policy. We can’t guarantee what your carrier will do, programs and insurers set their own final numbers, but we document every installation so you can claim what you’re owed.
One more thing worth considering: impact windows beat hurricane shutters for a lot of Three Lakes homeowners. You never have to drag panels out of the garage at 11 p.m. before a storm, and the protection is always in place. For homes with custom geometric windows, shutters often can’t be fitted to the shape anyway. A permanent impact-rated unit is the only solution that protects a triangle or arch window without altering the architecture.
We Also Serve Cities Near Three Lakes
Our Custom & Geometric Windows in Three Lakes clients often ask if we work in neighboring communities. We do. We regularly serve Westchester, Miami, Hialeah, and Doral with the same NOA-compliant process and the same local accountability. If you live right outside Three Lakes but you’re dealing with the same Miami-Dade HVHZ requirements, we’ve got you covered the same way.
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
Because Three Lakes sits entirely within Miami-Dade County’s High-Velocity Hurricane Zone, and the county’s building department will reject a permit application outright if the window product listed doesn’t carry a valid Notice of Acceptance. A Florida Product Approval from another county won’t pass. The NOA number proves the exact window configuration was tested and approved for Miami-Dade’s stricter wind standards, and without it, your project stops before it starts. Call (850) 721-1218 and we’ll verify the NOA on every unit we quote.
Yes, and it’s a project we do regularly in Three Lakes. The original jalousie windows on 1970s-era CBS homes are energy-inefficient, leak-prone, and structurally inadequate for current wind codes. We replace them with custom arched or curved impact units that match the original look but use laminated impact glass and frames engineered for the HVHZ. When we replaced an original jalousie with a custom arched impact-rated unit in a Three Lakes CBS home, our techs verified the NOA number before pulling the permit, then used PGT custom impact glazing to meet the design pressure rating for the oversized opening. The homeowner kept the look and gained a window that will actually hold in a Cat 4.
The required design pressure depends on your home’s exact location, elevation, exposure, and the size and shape of the opening. In the HVHZ, design pressures commonly range from +/-50 to +/-100 psf, and Miami-Dade requires documented engineering for each opening. We never guess at this number, we calculate it per window and per home. The answer is in the NOA documentation, and we pull it before we order the glass. Get your free measure at (850) 721-1218 and we’ll show you the exact rating your openings need.
Yes, in most cases. Florida Statute 627.0629 requires insurers to offer credits for documented wind-mitigation features, including impact-rated windows. But the key word is documented. If no one files the NOA numbers, the wind mitigation inspection form, and the installation details, your insurer has no basis to apply the credit. We provide a full documentation package with every Three Lakes installation so your wind mitigation inspection goes smoothly and your credits get applied. We can’t guarantee the exact percentage, your carrier sets that, but we make sure the paperwork doesn’t cost you.
Because the cheaper quote usually omits the NOA-rated product. Some contractors order standard Florida Product Approval windows, which cost less, then find out Miami-Dade rejects the permit because the product isn’t approved for the HVHZ. The homeowner is stuck with either paying more to redo the order or installing a window that’s illegal and unsafe. Our quotes include the correct NOA-rated product from the start, so the permit goes through, the installation passes inspection, and you’re left with a window that meets the code and your insurer’s requirements. For a quote that will actually pass, call (850) 721-1218.
Get Your Free Three Lakes Custom Window Estimate
If you live in Three Lakes, FL and you’re considering custom or geometric windows, whether it’s a single arched replacement or a full home of impact-rated shapes, we’ll come to your house, take exact measurements, verify the NOA requirements for your specific openings, and hand you a written line-item quote. No pressure, no vague numbers, and no surprises on the invoice. Upfront pricing. Honest work. A neighbor you can call at 2 a.m. and someone will actually answer. Call (850) 721-1218 to schedule your free estimate.
The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Three Lakes and all of 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.








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