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 Coral Gables
Custom and geometric windows in Coral Gables run $2,500 to $5,000 per large or shaped opening installed, and the bigger variable isn’t the glass – it’s clearing the city’s separate Board of Architects review on top of Miami-Dade’s HVHZ permit. If you own a 1920s Mediterranean Revival home or a 1950s ranch near the Biltmore or the Gables waterfront, you already know off-the-shelf replacements don’t fit those arched and angled openings. That’s exactly what we handle every week. Winslow Windows & Doors fabricates impact-rated custom units that match original profiles and pass both approval layers, and Ed Winslow’s name goes on every job we do. Call (863) 946-5039 for a free in-home measure and a written quote.
Why Winslow Windows & Doors Is Coral Gables’s Preferred Custom & Geometric Windows Company
We’ve been doing this since 2011, and Coral Gables is one of the few cities where our crew walks a job knowing two inspectors will eventually weigh in, not one. That dual Board of Architects and Miami-Dade NOA clearance changes how you measure, specify, and stage a custom arched unit. Most window companies working Coral Gables skip the city review, get a stop-work order, and leave the homeowner holding a non-compliant opening. We don’t. We pull both approvals before we cut anything, and we match grille patterns and finishes to the city’s approved palette.
You’ll also get a live person on the phone at 2 a.m. if you call (863) 946-5039. No ticket numbers. No call centers. The owner answers, or a uniformed, background-checked tech does. That matters when a storm just cracked a transom over your front door and you need to know what happens next.
On a recent 1920s Mediterranean Revival home near the Biltmore Golf Course, our crew replaced a set of rusted steel casements with custom impact-rated arched units from CGI, matching the original 2:1 lite pattern and a bronze PVD finish from the city’s approved palette. We staged materials on the front lawn and coordinated street parking with adjacent driveways, then pulled both the Miami-Dade NOA and Board of Architects approval before cutting the rough opening. Finished in two days, no stop-work order.
Our Custom & Geometric Windows Services in Coral Gables
Custom Impact Windows
Coral Gables sits inside Miami-Dade’s High Velocity Hurricane Zone, which means every custom window we fabricate carries a Miami-Dade Notice of Acceptance and meets design pressures matched to your specific opening. For a Coral Gables home, that’s typically a wind zone requirement of 150 to 170 mph depending on proximity to the bay and building height. We build arched, circular, and angled impact units that hold their NOA paperwork and still match the profiles your house was designed around.

Arched & Curved Windows
The 1920s through 1940s housing stock George Merrick planned left Coral Gables with hundreds of arched openings, many still holding original steel casements that are rusting out. A true arched impact window can’t be pulled off a shelf; it’s templated to your rough opening, fabricated to a radius, and glazed with impact laminate in a matching profile. We handle that process end to end, including the Board of Architects submittal with your actual grille pattern and finish color.

Geometric & Shaped Windows
Circular oculus windows, hexagonal transoms, trapezoid flankers, sloped conservatory glazing – Coral Gables has more of these than most South Florida cities because of its concentration of period architecture. Each shape gets its own structural calculation, its own NOA-compliant frame, and its own review package. We specify marine-grade anodizing or PVD-coated hardware as standard near the Biscayne Bay frontage, where salt air corrodes plain aluminum within two or three years.

Oversized Openings
Wide arched windows over a Coral Gables entry, fixed picture walls that face a courtyard or pool – these openings often run 8 to 12 feet wide and need heavier frames, thicker laminated glass, and careful load transfer to the existing oolite limestone or concrete structure. We engineer each oversized unit to carry hurricane wind loads without pulling fasteners out of soft limestone, which is a real failure mode we’ve corrected on jobs other crews started.

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 Coral Gables
We’re authorized installers for PGT, CGI, CWS, and ES Windows, and we service those brands’ custom and geometric lines throughout Coral Gables. That means when your original arched steel casement finally fails, we can fabricate a CGI custom impact unit with the same radius and a bronze PVD finish instead of telling you the opening has to become a rectangle. We stock local parts for quick turnaround, though every custom shape is built to your exact template and runs four to six weeks from approval to delivery. Once your units arrive, installation is typically completed in as fast as a single day per opening.
Common Custom & Geometric Windows Problems We See in Coral Gables Homes
- Skipped Board of Architects review. A contractor pulls the county permit, installs a custom arched window with the wrong grille pattern or a finish outside the city’s approved palette, and the city issues a stop-work order. Now the unit has to be pulled and reordered. We submit to both agencies before fabrication begins.
- Corrosion along the Bay frontage. Homes east of Old Cutler Road and along the Coral Gables Waterway get persistent salt-laden air. Standard aluminum extrusions and hardware corrode in two or three years. We specify marine-grade anodizing and PVD-coated hardware as the baseline, not an upgrade.
- Limestone wall anchoring. George Merrick’s planned-city homes were built with Miami oolite limestone walls that drill poorly and can spall under heavy fastener loads. A custom geometric window needs a engineered anchoring strategy, not a standard window screw pattern.
- Tight-lot staging failures. A 50-foot-wide Coral Gables lot doesn’t have room for a flatbed, a Dumpster, and a crew truck all at once. If staging isn’t planned, the job stalls before the first jamb is set. We coordinate street parking with neighbors, stage on the lawn or driveway, and keep the site clean every evening.
Pricing for Custom & Geometric Windows in Coral Gables, FL
Here’s what Coral Gables homeowners actually pay. A custom impact single-hung or casement runs $900 to $1,800 per window installed. A custom arched or geometric impact unit, which requires templating, radius fabrication, and dual approval packages, starts around $2,500 and often lands between $3,500 and $5,000 per opening. Oversized picture walls and wide arched entry units can exceed $5,000 when laminated glass thickness increases and frame engineering gets more involved. Whole-home replacements across a Coral Gables property with multiple custom shapes typically run $8,000 to $25,000 or more.
What moves the price: opening count, window size, whether your home sits in the HVHZ’s highest wind-speed bracket near the bay, second-floor access, and how much limestone patching the rough opening needs. We give you a free in-home measure and a written, itemized quote before you commit. Fixed pricing, no change orders. Call (863) 946-5039 to schedule yours.
What Custom & Geometric Windows Costs in Coral Gables
Impact windows generally run $800 to $1,500 per window installed anywhere in Miami-Dade. But Coral Gables custom work breaks that scale because of the approval layers and the fabrication involved. A standard impact single-hung may cost $900 to $1,800. A custom arched or geometric opening lands between $2,500 and $5,000. Large or custom openings with heavy laminated glass can push past that. Whole-home packages in Coral Gables, especially on Mediterranean Revival homes with seven or eight shaped openings, run $8,000 to $25,000 and up. Opening count, wind zone, floor height, and frame material all move the number. The best way to get an exact figure is a free in-home measure, which includes a written quote. Call (863) 946-5039 and we’ll schedule it.
Florida Pays You Back
Florida has real incentives that stack when you install impact-rated custom windows. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, assuming funding is available and your application is approved. 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 after a wind-mitigation inspection, which runs about $75 to $150, many homeowners see windstorm-premium credits averaging around 25% on the windstorm portion of their policy. Programs and carriers set the final numbers – we don’t guarantee these figures, but we do help you document compliance for every one of them.
One thing worth thinking through before you buy: impact windows versus hurricane shutters. Shutters protect only when someone is home to hang them, and they do nothing between storms for UV, sound, or daily air infiltration. Impact windows work permanently, no panels to pull out of a garage in the dark at 8 p.m. before a storm. For a Coral Gables home with arched and geometric openings, shutters are also nearly impossible to fabricate cleanly. Impact-rated custom units solve the problem once.
We Also Serve Cities Near Coral Gables
Our crews serve Coral Gables and the surrounding South Florida communities, including Miami, Miami Beach, Hialeah, and Miami Gardens. The approval and compliance process differs from one jurisdiction to the next, so if you’re just outside the Gables line, call (863) 946-5039 and we’ll tell you exactly what your city requires. Our Custom & Geometric Windows team covers the full metro area.
Serving Coral Gables, FL - Our Local Coverage Area
We’re based in the Coral Gables 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 Coral Gables
Yes, you do. Coral Gables requires its own Board of Architects review for any exterior window or door replacement, including on non-historic properties, on top of the Miami-Dade HVHZ permit. If a contractor pulls only the county permit and installs a custom arched window with the wrong grille pattern or a finish outside the city’s approved palette, the city can issue a stop-work order after installation. That means pulling the unit and starting over. Call (863) 946-5039 and we’ll verify both approvals are in hand before anything gets fabricated.
They hold up well if you specify marine-grade anodizing or PVD-coated hardware from the start. Standard aluminum extrusions and hardware corrode within two or three years along the Biscayne Bay frontage and the Coral Gables Waterway. We make marine-grade finishing standard on every custom unit we install east of Old Cutler Road, and we pair it with corrosion-resistant fasteners matched to the oolite limestone substrate. Call (863) 946-5039 for a quote on your specific openings.
In most cases, yes, but it depends on the rough opening condition and the frame depth. Ranch homes from the 1950s and 1960s in Coral Gables often have shallow jalousie frames that can’t support a standard impact laminated unit, so we typically do a full-frame replacement rather than an insert. That gives you a properly anchored, NOA-compliant frame and lets us maintain or restore a geometric shape without trying to force new glass into an old channel. A free measure and written quote tells us exactly what your openings need.
Coral Gables sits inside the same HVHZ as Kendall and South Miami, so the baseline Miami-Dade NOA requirement applies everywhere in the county. But the city’s Board of Architects adds requirements those other jurisdictions don’t have: profile matching, grille pattern fidelity, and finish palette compliance. Design pressure ratings are set per configuration and never exceed +/-100 PSF; wind speed ratings for Coral Gables homes within several miles of the coast often fall in the 150 to 170 mph range depending on building height and exposure. Call (863) 946-5039 for an exact match to your home.
We plan the entire staging footprint before the fabrication order is placed. On a 50-foot-wide lot, that means coordinating street parking with adjacent neighbors, staging materials on the lawn or driveway, and scheduling the flatbed delivery for the morning the opening is actually cut. We don’t leave a Dumpster or a crew truck blocking the street overnight. That planning is part of why we’ve finished Biltmore-area jobs in two days without a single complaint from neighbors or a stop-work order.
Get Your Free Coral Gables Estimate
If you live in Coral Gables and you’re looking at a rusted arched casement, a failed geometric transom, or an original jalousie that never should have survived another hurricane season, call us. We’ll measure every opening, lay out the dual approval path in plain English, and hand you a written line-item quote before you sign anything. 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 Coral Gables and the surrounding South Florida communities 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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