Custom & Geometric Windows in Coral Gables - Free In-Home Measure, Written Price

Fast, Reliable Custom & Geometric Windows Across Coral Gables

Custom and geometric windows in Coral Gables carry a burden no other South Florida city imposes: every window must pass Miami-Dade’s High Velocity Hurricane Zone product approval AND survive a separate aesthetic review by the city’s Board of Architects. That double gate is why standard rectangle impact windows often get rejected here, and why arched, radius, pentagon, and trapezoid shapes need a fabricator who understands both the engineering and the Mediterranean Revival character George Merrick codified for this city. Winslow Windows & Doors has been installing custom impact-rated shapes in Coral Gables homes since 2011, and we know which profiles clear the board and which get bounced back. Call (727) 291-4678 and you’ll reach a live person who can talk through your opening, your street, and what it actually takes to get approved.

Why Winslow Windows & Doors Is Coral Gables’s Preferred Custom & Geometric Windows Company

Ed Winslow’s name is on the door and on every job we do. That matters more in Coral Gables than almost anywhere else, because the Board of Architects review is unforgiving, and a contractor who doesn’t know the city’s aesthetic code will burn your permit fee and your time. We know which arched profiles read as “compatible Mediterranean Revival” and which read as “modern addition that doesn’t belong.” Our technicians have pulled original steel casements out of 1930s coral rock on Alhambra Circle without chipping the hand-carved limestone surrounds, and we’ve matched divided-lite patterns the board photographs during inspection. Reviews from Coral Gables homeowners consistently mention the same things: we answer the phone, we show up uniformed and background-checked, and we give written line-item quotes before any work begins. The Done Right Promise backs every custom shape we install. If it’s not done right, we make it right. That’s a lasting standard, and it’s exactly what a historic home demands.

Our Custom & Geometric Windows Services in Coral Gables

Custom Impact Windows

Every replacement window in Coral Gables must carry a Miami-Dade Notice of Acceptance under the HVHZ designation. That’s the strictest impact standard in the country, and it’s non-negotiable whether you’re on a bayfront street or inland off Granada Boulevard. We build custom impact windows with design pressures matched to your specific opening size and wind zone, never a generic rating stamped on a box. For Coral Gables homeowners replacing original 1920s and 1930s casements, we can keep the original sightlines while upgrading the glass package to impact-rated laminated or insulated impact, so the window looks like it belongs and performs like it protects.

Geometric & Shaped Windows

Pentagons, trapezoids, circles, ovals, octagons, eye-shaped lunettes. These shapes appear throughout Coral Gables’s older homes as transoms, stairwell accents, and decorative focal points, often paired with ornamental stucco surrounds the board expects you to preserve. A geometric window in this city isn’t just a cut-and-frame job. It’s a fabrication exercise that has to satisfy large-missile impact testing in a non-rectangular profile while matching the divided-lite rhythm of the originals. We work directly with PGT, CGI on custom geometric configurations and we’ve learned which shapes each factory can actually test-certify. That saves you the heartbreak of paying for a design the manufacturer won’t build to HVHZ spec.

Arched & Curved Windows

The arched window is the signature silhouette of Coral Gables. Merrick’s original city plan mandated arched entryways, arched loggias, and arched fenestration throughout the Mediterranean Revival core. Replacing an arched window with a rectangular one is the fastest way to get a Board of Architects rejection. We fabricate true radius-top impact windows in half-round, quarter-round, and eyebrow arches, with springline heights matched to the surrounding masonry. On homes along streets like Riviera Drive, where original steel casements were mortared directly into the oolitic limestone, we remove the old frames with an angle grinder and cold chisel, never a reciprocating saw. The surrounding stone surround is part of the city’s historic fabric, and the board will photograph it during inspection.

Oversized Openings

A 12-foot structural opening on a Coral Gables estate doesn’t get a window. It gets a custom-engineered impact system with reinforced mullions, heavier gauge frames, and design pressures calculated for the exact glazing area and elevation. These projects run through county permitting on top of HVHZ review, and on larger lots you’re often dealing with grading, drainage setbacks, and long material hauls for the lift equipment. We scope the opening, the access path, and the load path before we quote, so the number you approve is the number you pay. Oversized custom work on a coral rock home also means accounting for wall thickness. Oolitic limestone walls are far thicker than CBS, and a mis-sized jamb extension on a giant geometric shape creates gaps that fail during HVHZ wind-driven rain.

Trusted Brands We Service in Coral Gables

We’re an authorized installer for PGT, CGI, CWS, among others, and each factory brings something different to Coral Gables’s specific demands. PGT handles the heavier arched and geometric load with the most extensive Miami-Dade NOA library. CGI builds a muscular aluminum frame that holds up to bayfront salt air on streets near Biscayne Bay. ViewLux gives us the flexibility to match period-appropriate finishes and true divided-lite patterns on Mediterranean Revival homes. Because we stock factory-specific hardware and glazing for these lines, Coral Gables customers aren’t waiting on parts from a distributor in Orlando when a custom shape needs a specific mullion or lift block.

Common Custom & Geometric Windows Problems We See in Coral Gables Homes

• Board of Architects rejections on rectangular substitutions. A homeowner replaces an arched original with a standard rectangle impact window because the price looked better. The permit gets bounced, the window sits in a warehouse, and the homeowner pays for a second design iteration plus a resubmission fee. Checking arch and lite compatibility before quoting prevents this entirely.
• Limestone surround damage from aggressive removal. Original steel casements on pre-1950 coral rock homes were often mortared directly into the stone, with no wood buck. A reciprocating saw cracks the decorative surround. We use an angle grinder and cold chisel, and we photograph the surround before we start so there’s a record both we and the board can reference.
• Salt corrosion on bayfront and eastern streets. Air off Biscayne Bay accelerates oxidation on frame corners and hardware. Standard aluminum with a basic anodized finish starts pitting within a few years. On bayfront Coral Gables addresses we specify marine-grade anodized alloys and stainless hardware, which costs more upfront but doesn’t look like it survived a shipwreck by year six.
• Jamb extension failures on thick oolitic limestone walls. Coral rock walls run 10 to 14 inches thick, sometimes more on older construction. If the jamb extensions aren’t sized for that depth, the geometric window sits recessed with gaps at the interior reveal. Moisture follows those gaps during wind-driven rain, and the board or county inspector flags the install. We measure actual wall thickness at every opening before ordering jamb stock.

Pricing for Custom & Geometric Windows in Coral Gables, FL

What Custom & Geometric Windows Costs in Coral Gables

For planning purposes, here’s what Coral Gables homeowners actually spend. Impact windows generally run $800 to $1,500 per window installed. An impact single-hung falls in the $900 to $1,800 range. Large or custom openings, which covers most of what we do in this city, run $2,500 to $5,000 each. A whole-home package across a 1920s Mediterranean Revival residence typically lands between $8,000 and $25,000 or more, depending on opening count and how many arches and geometric shapes are involved. Three factors move the price more than anything else in Coral Gables: how many openings need board-compatible profiles, what wind zone and floor height your home sits in, and whether you choose aluminum or vinyl framing. We measure every opening, check the wall thickness, and run the board-compatibility review before we write the quote. The in-home measure and written estimate are free, and there’s no trip charge for Coral Gables addresses inside our home county.

Florida Pays You Back

If you’re replacing windows in Coral Gables, there’s a real stack of incentives available and we’ll help you navigate the paperwork on the ones that apply. My Safe Florida Home offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, which includes impact windows and doors. Florida also exempts impact-resistant windows and doors from sales tax, which on a $20,000 project is meaningful savings. The federal 25C energy credit can return 30% of product cost, up to $600 per year, on qualifying units. And after a wind-mitigation inspection, which typically costs $75 to $150, many carriers apply windstorm-premium credits averaging around 25% on the windstorm portion of your policy. Nobody can guarantee what your carrier or the program administrators will finalize, but these are standing programs we see Coral Gables homeowners use every month. Ask us which ones fit your project and we’ll point you to the right forms.

We Also Serve Cities Near Coral Gables

Our custom and geometric window crews regularly work Coral Gables and the surrounding South Florida cities, including Miami, Miami Beach, and Hialeah. If you’re in one of those areas and facing a similar Board of Architects or HVHZ challenge, our Custom & Geometric Windows team handles the same arched, radius, and shaped openings. For homeowners deeper into Coral Gables, dispatch and scheduling are coordinated from our Miami office, with crews and materials staged locally so lead times don’t stretch.

FAQs - Custom & Geometric Windows in Coral Gables

Will the Coral Gables Board of Architects approve a modern geometric window on a Mediterranean Revival home?

Yes, if the geometric window is designed to read as compatible with the home’s Mediterranean Revival character, the Board of Architects will generally approve it. The board cares about arched profile ratios, divided-lite patterns, and period-appropriate finishes, not about rejecting geometry outright. A clean trapezoid transom with matching lite rhythm can pass. A stark minimalist rectangle where an arch belonged will not. We’ve learned exactly what the board flags by working through dozens of Coral Gables reviews, and we design every custom shape with that standard in mind from the first drawing. Call (727) 291-4678 and we’ll walk you through what your specific elevation likely needs.

Do custom geometric windows in Coral Gables still need to meet Miami-Dade HVHZ impact standards?

Yes, every window and door installed in Coral Gables must carry a Miami-Dade Notice of Acceptance under the High Velocity Hurricane Zone designation, regardless of shape. There is no exemption for custom or decorative openings. A geometric window that looks beautiful but lacks a Miami-Dade NOA for that exact configuration cannot be legally installed. We only fabricate custom shapes through manufacturers that maintain NOA coverage for the specific geometry, frame, and glass package we’re quoting.

How do you remove original steel casement windows from coral rock without damaging the limestone surround?

We cut the steel frame with an angle grinder at the corners and free it from the mortar bed with a cold chisel, never a reciprocating saw. The saw’s aggressive motion transfers vibration into the oolitic limestone and cracks the decorative surrounds, which are hand-carved and irreplaceable. We also photograph the surround and the frame before removal so there’s a dated record for the Board of Architects inspection and for your homeowner’s file. Removal on a 1930s coral rock home takes longer than a standard pull in South Miami, and that labor is reflected honestly on your line-item quote.

Can you make a true divided-lite arched window that passes HVHZ large-missile testing?

Yes, we can fabricate a true divided-lite arched window that passes HVHZ large-missile impact testing, but it requires a specific construction. The individual lites are applied to the impact-rated laminated glass as internal and external grids, not structurally separated panes, and the entire assembly is tested as one unit. PGT and CGI both maintain Miami-Dade NOA coverage for true divided-lite arched configurations. The cost is higher than a simulated divided-lite, but if the board or your own eye demands the real thing, it’s available and fully compliant. Call (727) 291-4678 for an exact quote on your arch dimensions.

Why do custom windows on bayfront streets in Coral Gables cost more than the same shape inland?

Bayfront Coral Gables homes pay more for custom windows because the hardware and frame finish must be upgraded for salt-air exposure, and the design pressure requirements are often higher on the windward side. We specify marine-grade anodized aluminum and stainless hardware on eastern and bayfront streets, which costs more than standard hardware. We also see elevated first-floor and second-floor wind pressures on Biscayne Bay-adjacent lots, which can push frame gauge and glass package up a grade. The shape is the same, but the engineering isn’t. Everything is on the written quote so you can see exactly what the salt and the wind are charging you.

Get Your Coral Gables Custom Windows Passing Both Boards

The Coral Gables-specific playbook is simple: know the HVHZ numbers, know the Board of Architects expectations, and never let a saw touch coral rock without a grinder and chisel on the truck. That’s the playbook our team runs every week on streets from Alhambra Circle to the inland lots off Old Cutler Road. Ed’s name is on the door and on every job we do. Call (727) 291-4678 today to schedule your free in-home measure and written estimate. A real person answers, 24 hours a day, seven days a week. We’re the one down the road.

Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Coral Gables since 2011.