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 cost $2,500 to $5,000 per opening for most arched, circular, or oversized configurations, with impact-rated glass adding a meaningful premium over standard units. That reflects the reality of building in Miami-Dade’s High Velocity Hurricane Zone, where every replacement window must carry a Miami-Dade Notice of Acceptance (NOA) that matches the exact frame shape installed. We’ve handled enough custom window jobs in Three Lakes to know the inspectors, the paperwork, and the product lines that pass on the first visit. If you’re planning an arched window over a front entry or a floor-to-ceiling geometric feature wall, call (844) 901-4551 and we’ll walk you through what the code actually requires before you spend a dollar.
Why Winslow Windows & Doors Is Three Lakes’s Preferred Custom & Geometric Windows Company
Ed Winslow founded this company in 2011, and his name has been on every job we’ve done in Three Lakes since. That’s not marketing language. We publish our address and license number. We answer the phone with a live person, 24/7. When a homeowner near SW 117th Avenue calls about a trapezoid window that got flagged for the wrong NOA, they’re talking to someone who has already dealt with that exact rejection three times that month.
Our custom window work in Three Lakes leans heavily on impact-rated geometric shapes because that’s what the local housing stock demands. The 1970s and 1980s CBS ranch homes that dominate this community often have wide slider openings and jalousie units that were never code-compliant after Hurricane Andrew. Replacing those with arched or oversized windows requires careful structural engineering, not just glass swapping. We bring that expertise to every quote. No trip charge inside our home county, upfront pricing on paper, and a written estimate you can compare line by line.
Key Takeaways:
- Every custom geometric window in Three Lakes needs a Miami-Dade NOA matching the exact frame shape, not just the product line.
- Costs run $2,500 to $5,000 per custom opening, depending on glass rating, frame shape, and structural work.
- Most Three Lakes homes we service were built before the 1994 post-Andrew code overhaul.
- We’re the Custom & Geometric Windows team that handles the permit paperwork, NOA placard posting, and structural load-path documentation so you pass inspection on the first try.
Our Custom & Geometric Windows Services in Three Lakes
Custom Impact Windows
Custom impact windows in Three Lakes typically run $2,800 to $4,800 per unit when the opening requires a non-standard frame shape with laminated large-missile glass. The price difference versus a stock impact window comes from the engineering time, the custom aluminum or vinyl extrusion, and the Miami-Dade NOA documentation that must match the fabricated shape exactly. For homes near the lake edges and canal systems in 33186, we recommend PGT or CGI impact glazing with a matching Florida Product Approval number submitted alongside the permit.

Geometric & Shaped Windows
Trapezoids, parallelograms, octagons, and other geometric windows are common in Three Lakes homes where owners want a modern look without sacrificing storm protection. These openings demand precision fabrication because the frame angles must be cut and welded to within a fraction of an inch. A geometric window that carries an NOA for a standard rectangle will fail inspection in Miami-Dade. We verify the approval number against the actual shape before the unit is ordered, so you don’t end up with an expensive piece of glass that can’t legally be installed.

Arched & Curved Windows
Arched and curved windows over entry doors and picture-window openings give Three Lakes ranchers a lot of curb appeal, but they’re also the most common source of NOA mismatches in this zip code. Half-round and eyebrow windows need curved laminated glass and a frame that holds its radius under large-missile impact. We’ve installed PGT 770 series arched configurations that passed Miami-Dade inspection on the first visit because the approval documents matched the drawings submitted with the permit. Expect $2,600 to $4,400 per arched opening depending on the radius and frame material.

Oversized Openings
Oversized openings in Three Lakes, especially those created by removing an original jalousie bank or expanding a rear slider into a full glass wall, run $3,500 to $5,000 per opening when engineered for HVHZ compliance. The glass itself is only part of the cost. The header, jamb anchoring to CBS block, and mullion engineering all need signed wind-load documentation. We work with a local structural engineer who understands what Miami-Dade inspectors require for load-path verification. That’s the difference between a window that looks great and one that actually protects your home and lowers your windstorm premium.

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.
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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’re an authorized installer for PGT, CGI, and CWS, among others, and we keep the product lines and glazing options current with what Miami-Dade’s NOA database actually lists for custom shapes. That matters more than it sounds. Ordering a CWS arched unit with a Florida Product Approval number that covers the frame family is fine. Ordering one with an approval for a rectangle and hoping the inspector won’t notice is a fast way to a reinspection fee and a two-week delay. Our Three Lakes customers get the right brand, the right glazing, and the right paperwork before the unit ever arrives.
Common Custom & Geometric Windows Problems We See in Three Lakes Homes
- Wrong NOA on shaped units: We regularly see geometric windows in Three Lakes that shipped from out-of-county suppliers with an approval number for a standard rectangle. Miami-Dade inspectors reject these on sight because the NOA must match the exact frame shape and size on the approved permit drawing.
- Non-HVHZ glass on eyebrow windows: Some suppliers outside Miami-Dade sell arched units without the laminated interlayer required for large-missile impact testing. The glass shows up, looks fine, and can’t legally be installed in Three Lakes.
- Missing load-path paperwork on arched banks: When a cluster of arched windows replaces an old slider, the jamb anchoring to the CBS block needs a signed wind mitigation form. Skip that and you lose the insurance credit for those openings.
- Seal failure from afternoon storm cycles: The June through September thunderstorm pattern in Three Lakes, with wind-driven rain nearly every afternoon, exposes even tiny seal gaps in curved glazing. A half-inch gap at the top of an eyebrow window becomes a water stain on the drywall by August.
Pricing for Custom & Geometric Windows in Three Lakes, FL
You’ll pay more for custom impact windows in Three Lakes than in most of Florida because you’re buying engineering, not just glass. A standard impact single-hung runs $900 to $1,800 installed here. A custom arched or geometric unit with HVHZ-compliant laminated glass starts around $2,500 and often reaches $5,000 for oversized openings that require header reinforcement and mullion engineering. Whole-home packages with multiple custom shapes land between $8,000 and $25,000 depending on opening count and frame material. We give you a written, line-item quote after a free in-home measure, and the price we quote is the price you pay. Call (844) 901-4551 to schedule your free estimate.
What Custom & Geometric Windows Costs in Three Lakes
Here’s the honest breakdown for Three Lakes specifically:
- Standard impact windows: $800 to $1,500 per window installed.
- Impact single-hung: $900 to $1,800 per window.
- Custom arched or geometric openings: $2,500 to $5,000 per opening.
- Oversized or structural openings (header work, mullion engineering): $3,500 to $5,000 each.
- Whole-home impact packages with multiple custom shapes: $8,000 to $25,000+.
What moves the price in Three Lakes is the wind zone, the frame shape, and the floor height. A second-story trapezoid on a two-story home near the lake edges carries more wind load than a first-floor unit, and the engineering reflects that. Frame material matters too: aluminum with thermal breaks costs more than vinyl, and custom-radius aluminum extrusions cost more than square profiles. Every quote includes the permit package, NOA placard posting, and the structural documentation Miami-Dade requires. We do a free in-home measure and hand you a written quote you can hold us to.
Florida Pays You Back
The incentive stack for Three Lakes homeowners is real. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, and impact windows with proper NOA documentation are exactly the kind of improvement the program reviews favorably. Florida also exempts impact-resistant windows and doors from sales tax. On the federal side, the 25C energy credit covers 30% of the product cost up to $600 per year on qualifying energy-efficient units. After installation, a wind-mitigation inspection, which runs $75 to $150, is what triggers the windstorm premium credit. Homeowners in Miami-Dade who document large-missile-rated glazing on every opening routinely see the windstorm portion of their premium drop by roughly 25%. We can’t guarantee your carrier’s math, but we can guarantee the paperwork that shows the credit should apply. Impact windows beat hurricane shutters here because the protection is permanent: no panels to hang at 2 a.m. when a storm shifts toward Three Lakes, and no storage problem for the other 360 days a year.
We Also Serve Cities Near Three Lakes
Our crews work throughout The Crossings, Country Walk, The Hammocks, and Kendale Lakes, and we bring the same Miami-Dade NOA discipline to every job in Three Lakes. Whether you’re near the lake canals or farther south toward 152nd Street, the code requirements don’t change, and neither does our paperwork process.
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, every replacement window in Three Lakes, including a decorative half-round above a door, must carry a Miami-Dade NOA that matches the exact frame shape and configuration installed. Miami-Dade is the only HVHZ jurisdiction in Florida with this requirement, and inspectors check the placard against the permit drawing on every job. If the NOA on your half-round doesn’t list that specific curved frame, it gets rejected regardless of how small the unit is. Call (844) 901-4551 and we’ll verify the right approval number before anything is ordered.
The inspector flagged it because the NOA posted on-site didn’t match the trapezoid shape on the approved permit drawing. Impact-rated glass is necessary but not sufficient in Miami-Dade. The approval must cover the exact frame geometry, the glazing package, and the anchoring method. Your neighbor’s window likely carried an NOA issued for a standard rectangle from the same product line, and the inspector rejected it on that mismatch. We see this constantly in Three Lakes when units are ordered from suppliers outside Miami-Dade who don’t understand HVHZ documentation. Call (844) 901-4551 before you order, not after it arrives.
No. Glass strength doesn’t replace structural load-path requirements. An oversized picture window in a CBS home in Three Lakes needs a properly sized header and jamb anchoring that transfers wind load to the concrete block, and that engineering must be documented on a signed wind mitigation form. Miami-Dade inspectors check this. We’ve handled plenty of cases where a homeowner widened a slider opening and the window itself was fine, but the header was undersized and the permit failed. We coordinate with a local structural engineer so the header, anchoring, and glazing all get approved together. Call (844) 901-4551 for a free in-home measure and we’ll tell you exactly what your opening needs.
Yes, in most cases you can, but only if the paperwork is done right. The windstorm premium credit comes from a wind-mitigation inspection that verifies large-missile-rated glazing on every opening and documents proper jamb anchoring and header support. In Miami-Dade, that means every window needs a matching NOA, not just the big ones. Homeowners who complete a full replacement with documented HVHZ compliance typically see the windstorm portion of their premium drop by around 25%. The inspection itself runs $75 to $150. We prepare the documentation ahead of time so the inspector sees a complete, matching file. Call (844) 901-4551 and we’ll walk you through what a wind-mitigation report needs to show for your specific Three Lakes home.
No. A failed seal on a curved or arched window in Three Lakes can’t be reglazed in place. The laminated interlayer and curved glass profile mean the unit must be fabricated as a complete assembly and replaced whole. This is especially true in Miami-Dade, where any repaired unit would still need to carry the original NOA and meet large-missile testing. Attempting a field reglaze voids that approval. We replace failed arched units with new NOA-compliant fabrications, handle the permit update, and match the frame finish to the existing window. Water intrusion during the June through September storm cycle only gets worse, so call (844) 901-4551 for a replacement quote before the next afternoon downpour.
Contact Winslow Windows & Doors in Three Lakes
When you’re ready to price custom or geometric windows for your Three Lakes home, call (844) 901-4551. You’ll get a live person, a free in-home measure, and a written quote that includes every permit, NOA placard, and structural document Miami-Dade requires. That’s how Ed Winslow has run this company since 2011, and it’s why homeowners around SW 117th Avenue keep our number saved. The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Three Lakes since 2011.










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