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 are a two-permit job on many properties, and that catches a lot of homeowners off guard. You need windows that pass Miami-Dade County’s High-Velocity Hurricane Zone (HVHZ) impact standards, and on historic-district homes you also need sign-off from the Coral Gables Board of Architects. We handle both approvals before we order a single unit. That’s the difference between a smooth install and a stop-work order. If you’re planning arched, curved, or shaped windows anywhere in Coral Gables, call (727) 620-6983 for a free in-home measure and a written quote that fixes the price before fabrication begins.
Why Winslow Windows & Doors Is Coral Gables’s Preferred Custom & Geometric Windows Company
We’ve been installing custom and geometric windows in Coral Gables long enough to know that the Riviera section is not the Biltmore area is not the Cocoplum waterfront. Each neighborhood has its own mix of original George Merrick-era homes, 1960s CBS remodels, and newer canal-front construction, and each one throws a different set of variables at an impact-window crew. Our Custom & Geometric Windows team has worked on Mediterranean Revival casements near the Country Club of Coral Gables, oversized picture openings facing the Coral Gables Waterway, and everything between.
Ed Winslow’s name is on the door, and on every job we do. We’re not a franchise that sends a different crew each time. Every technician is background-checked and arrives in uniform, and our published address and license number mean you always know exactly who you’re dealing with. If something isn’t done right, the Done Right Promise kicks in: we make it right. Period. That’s a lasting standard, and it applies to every custom window we install in Coral Gables.
Our Custom & Geometric Windows Services in Coral Gables
Custom Impact Windows
Coral Gables sits entirely inside Miami-Dade County’s HVHZ, so every window we install carries a Miami-Dade County NOA. That’s non-negotiable for us, and for the inspectors who check our work. But custom impact windows in Coral Gables mean more than bolting in a rated unit. On Merrick-era homes with deep coral-rock reveals, we use extended jamb adapters and custom sub-sill builds so the window sits correctly in the opening without eating into the interior trim. On canal-front homes, we specify marine-grade stainless hardware and anodized or Kynar-coated aluminum frames so salt air doesn’t turn your investment into a maintenance problem in five years.

Geometric & Shaped Windows
Triangles, trapezoids, pentagons, circles, ovals. If the opening isn’t a rectangle, we can build for it. Coral Gables has a surprising number of geometric windows, mostly in 1980s and 1990s homes where architects used shaped glass to bring light into entryways and stairwells. The challenge is that impact glass doesn’t bend the way regular annealed glass does. We work with our fabrication partners to cut laminated impact interlayers to the exact shape, then build a frame rated to the design pressure of that specific opening. Shaped windows take longer, but the math is settled before we order.

Arched & Curved Windows
Arched windows are the signature of Coral Gables’s Mediterranean Revival stock. Original 1920s and 1930s homes have arches over entryways, front windows, and sometimes full elevations. Replacing them with impact-rated units without losing the curve is a specialty, not a sideline. We’ve matched radius measurements from original steel casements on Riviera section homes and supplied arched CGI units with divided-light profiles that satisfy the Board of Architects. If you want the arch preserved and the glass impact-rated, that’s exactly the job we do most often in Coral Gables.

Oversized Openings
Large fixed picture windows, corner glazing, and wall-to-wall openings facing Biscayne Bay need glass that carries serious design pressure ratings. Tall openings catch more wind, and wind speed increases with height. An oversized custom window in Coral Gables typically runs $2,500 to $5,000 per opening installed, depending on glass area and frame material. We’ll calculate the exact design pressure for the opening’s height and exposure, then spec the laminate, frame gauge, and anchoring so the finished window meets code without overkill pricing.

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 an authorized installer for eight premium brands, and for custom and geometric work in Coral Gables we most often recommend CGI, PGT. CGI’s custom division is particularly strong on arched and radius work, which is why we lean on them for Mediterranean Revival replacements. For geometric shapes and oversized fixed glass, PGT offer the configuration flexibility we need. Because we install these brands every week across South Florida, we can get accurate fabrication lead times before you commit, and we know which configurations hold Miami-Dade NOAs for HVHZ. No substitutions, ever.
Common Custom & Geometric Windows Problems We See in Coral Gables Homes
- Stop-work orders from the Board of Architects. On historic-district homes in Coral Gables, pulling a standard building permit isn’t enough. Exterior window alterations need a separate design-review approval, and skipping it can force you to restore the original openings at your own cost. We build this approval into every historic-district bid so it never surprises you later.
- Coral rock anchoring failures. Oolitic limestone is soft, porous, and nothing like standard CBS block. Standard masonry bits can crack it or leave an anchor that works loose. Our crews use coral-rock-specific bits and anchoring techniques, especially on 1920s and 1930s homes in the French Normandy Village and other Merrick-era sections.
- Salt-air corrosion near the Coral Gables Waterway. Homes within a few blocks of any canal deal with corrosion rates far above inland South Florida. Generic aluminum frames and uncoated hardware seize up, pit, and fail. We specify anodized or Kynar-coated aluminum and marine-grade stainless for every canal-adjacent job as a practical necessity, not an upsell.
- Mismatched profiles on divided-light windows. The Board of Architects cares about divided-light profiles, muntin widths, and finish color on historic homes. A window that passes Miami-Dade HVHZ can still fail design review if the profile looks modern. We coordinate the aesthetics and the engineering so you don’t get rejected on round two.
Pricing for Custom & Geometric Windows in Coral Gables, FL
Custom work is priced by the opening, not by a flat per-unit number, because no two shaped or arched windows are alike. For Coral Gables, here’s what we typically see: a standard impact window runs $800 to $1,500 installed. An impact single-hung runs $900 to $1,800. Custom arched or geometric windows start around $2,500 per opening and can reach $5,000 for large units with high design-pressure ratings. Whole-home packages on a coral-rock Mediterranean Revival replacement commonly land between $8,000 and $25,000 or more, depending on opening count and wind exposure. What moves the price in Coral Gables: the number of openings, frame material, glass area, design pressure for height and wind zone, and whether the home is in a historic district requiring Board of Architects review. Call (727) 620-6983 for a free in-home measure and a written quote. The price is fixed before we order anything.
What Custom & Geometric Windows Costs in Coral Gables
Beyond the opening-by-opening numbers above, Coral Gables buyers should budget for the dual-approval path. The building permit and any required Board of Architects design-review filing add a few hundred dollars to the project, and they add time. A typical custom geometric window in Coral Gables, installed with HVHZ-rated laminated impact glass, runs $2,500 to $5,000 per opening. Standard impact windows run $800 to $1,500 each installed, and impact single-hungs run $900 to $1,800. Whole-home replacements on larger historic homes start around $8,000 and can exceed $25,000 depending on opening sizes and finish requirements.
Three things move the price more than anything else in Coral Gables: the size and shape of the opening, the wind zone and floor height (which determine required design pressure), and whether the home sits within the Board of Architects review area, which adds coordination and sometimes custom muntin profiles. We provide a free in-home measure and a fixed written quote before you commit to anything.
Florida Pays You Back
Florida’s incentive stack for impact-window upgrades is one of the strongest in the country, and Coral Gables homeowners can tap most of it. My Safe Florida Home offers matching grants up to $10,000 for qualifying wind-mitigation upgrades. Impact-resistant windows and doors are exempt from Florida sales tax, which saves you 6% or more right away. The federal 25C energy credit covers 30% of the product cost on qualifying units, up to $600 per year. And once your wind-mitigation inspection is done (typically $75 to $150), most insurers credit an average of about 25% on the windstorm portion of your premium. Programs and carriers set the final numbers, so we can’t guarantee a specific dollar figure, but the stack is real and worth claiming.
One more thing worth knowing: impact windows beat hurricane shutters for one simple reason. Shutters only protect you when someone is home to hang them, and a storm doesn’t call ahead. Impact windows protect the house permanently, with no panels to store and no scramble when a warning hits. For a custom home in Coral Gables, permanent protection also means no aesthetic trade-off. The windows look like windows.
We Also Serve Cities Near Coral Gables
Our Custom & Geometric Windows in Coral Gables crews work throughout the city and in nearby Miami and Hialeah as well. Hialeah’s mid-century ranches and Miami’s waterfront high-rises each have their own window challenges, and we carry the same brands and the same dual-approval know-how into every job. If you’re just over the Coral Gables line, you’re still in our service 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
On historic-district properties, Coral Gables requires separate design-review approval from the Board of Architects in addition to a building permit for any exterior window or door alteration. A standard building permit is not sufficient, and skipping the design review routinely triggers stop-work orders. We handle both approvals before ordering anything. Call (727) 620-6983 and we’ll tell you whether your property is in a review district during the first visit.
Both. The window must carry a Miami-Dade County NOA for HVHZ compliance, and on Merrick-era and other historic-district homes it must also satisfy the Board of Architects’ requirements for period-appropriate profiles, divided lights, and finishes. A window that passes engineering can still fail design review. We spec for both standards from the start. Call (727) 620-6983 for a free assessment.
Coral rock is softer and more porous than CBS block, so anchors behave differently and standard masonry bits can crack the surrounding stone. Our crews use coral-rock-specific bits and anchoring methods, and for deep reveals we build extended jamb adapters or custom sub-sills so the window seats correctly. Oversized openings in coral rock need careful load transfer, which is exactly why we don’t treat Coral Gables like any other zip code.
Custom fabrication for arched, curved, and geometric impact windows typically runs 4 to 6 weeks, and that lead time, not labor, is what sets your calendar. Laminate cutting, frame bending, and NOA compliance checks happen at the factory. We order only after design review and permits are filed, so the lead time runs parallel to approvals rather than after them. Call (727) 620-6983 and we’ll map the full timeline for your specific project.
Yes. Homes within a few blocks of the Waterway see corrosion rates well above inland South Florida, so anodized or Kynar-coated aluminum frames and marine-grade stainless hardware are a practical necessity, not an upgrade. Specifying standard hardware on a canal-front custom window will cost you more in maintenance and replacement within a few years. We build salt-air controls into every canal-adjacent bid.
Call Winslow Windows & Doors for Custom & Geometric Windows in Coral Gables
If you’re planning custom, arched, or geometric windows in Coral Gables, you need a contractor who knows the dual-approval path, the coral rock, and the salt air. That’s us. Ed Winslow’s name is on the door. We answer the phone 24/7, our technicians are background-checked and uniformed, and every quote is fixed in writing before anything gets ordered. Call (727) 620-6983 for your free in-home measure and written estimate. The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Coral Gables homeowners with custom and geometric window installations 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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