Custom & Geometric Windows in Key Biscayne - Free In-Home Measure, Written Price

Fast, Reliable Custom & Geometric Windows Across Key Biscayne

Custom and geometric windows in Key Biscayne run between $2,500 and $5,000 per opening for true custom fabrication, with whole-home packages starting around $8,000 and climbing past $25,000 for larger jobs. That’s the honest range before we measure anything. Ed Winslow has been putting his name on window work since 2011, and we answer the phone at (863) 656-0462 when you call. On Key Biscayne, you’re not just buying glass. You’re buying something that has to survive salt spray from two directions and a hurricane code stricter than anywhere else in Florida.

Call (863) 656-0462

If you’ve got a circle-top, eyebrow arch, trapezoid, or an oversized opening that standard window companies won’t touch, we’ll measure it, spec it correctly for this island, and install it ourselves. No subcontracted crews. No ticket numbers. Just our people, our name, and our 36500-Day Done Right Promise: if it’s not done right, we make it right.

Why Winslow Windows & Doors Is Key Biscayne’s Preferred Custom & Geometric Windows Company

Key Biscayne isn’t Miami Beach, and it isn’t Coral Gables. It’s a barrier island where every home and condo sits between Biscayne Bay and the Atlantic, and that changes what window work actually means. Salt-laden air attacks frames from both sides. HVHZ wind rules apply to every opening. Condo associations on Crandon Boulevard and along the bay regularly require exact frame colors, specific glass tints, and written approval before a single unit gets ordered. We’ve worked through that process enough times to know which questions the boards will ask before they ask them, and we bring NOA documentation to the first conversation so you’re not waiting on paperwork that should already be in hand.

Every technician who shows up on Key Biscayne is background-checked and in uniform. You’ll know who’s at your door before the truck stops. And when you call (863) 656-0462, a live person answers, 24 hours a day. That’s not a call center. It’s us.

Our Custom & Geometric Windows Services in Key Biscayne

We’re the Custom & Geometric Windows team that handles the shapes standard window shops decline. On Key Biscayne, that work comes with extra rules, and we account for every one of them before the first cut.

Custom Impact Windows

Every replacement window on Key Biscayne sits inside Miami-Dade’s High-Velocity Hurricane Zone, so impact glazing isn’t optional for anything new. A custom impact unit in Key Biscayne typically runs $1,500 to $3,500 per opening depending on size, floor height, and design pressure. We order from PGT, ES Windows, and ECO Window Systems, and every configuration carries a Miami-Dade NOA.

Geometric & Shaped Windows

Triangles, pentagons, trapezoids, octagons. These shapes demand precise templating, and on a saltwater island, the frame material matters as much as the glass. We spec stainless steel hardware and marine-grade finishes as standard on Key Biscayne because inland-spec fasteners corrode within a few years here. A geometric custom window with impact glass runs $2,500 to $4,500 installed.

Arched & Curved Windows

Radius tops and full eyebrows are common in the older Key Biscayne condos and homes built between the 1960s and 1980s. The original aluminum frames on those units are often decades past useful life, with white corrosion blooms and failed seals. We recently fitted an arched fixed window in a Crandon Boulevard condo after exactly that failure: the single-pane seal was gone and the sill showed heavy oxidation. Replaced it with a PGT custom arched impact unit, laminated glass interlayer, stainless hardware, and a bronze finish that matched the association’s spec, after a three-week HOA approval process that only exists on this island.

Oversized Openings

Floor-to-ceiling bay views and wide openings facing the Atlantic or the bay need serious structural support. Large custom openings in Key Biscayne run $3,000 to $5,000 per unit or more, depending on design pressure and frame reinforcement. We calculate wind loads opening by opening, never guessing, and never installing a product without the right NOA for that specific configuration.

Trusted Brands We Service in Key Biscayne

We install custom and geometric windows from PGT, ES Windows, and ECO Window Systems, and we regularly work on Therma-Tru products for door-adjacent openings. Because we’re ordering for Key Biscayne specifically, we spec laminated glass interlayers and stainless or hot-dipped hardware from the start. Our relationships with these manufacturers mean faster reorders when an association changes a tint spec mid-project, and we’re not stuck waiting on parts from a warehouse three states away.

Common Custom & Geometric Windows Problems We See in Key Biscayne Homes

• Salt corrosion inside frames. Steel reinforcements inside aluminum or vinyl frames oxidize quickly on a barrier island, warping jambs and throwing sashes out of alignment. On custom geometric shapes, that misalignment gets ugly fast.
• Clogged weep holes on arched and curved units. Salt crust and windblown sand block the drainage channels, trapping moisture against the glass edge. That’s what delaminates laminated interlayers and rots wood surrounds from the inside.
• Failed seals on insulated glass. The constant humidity and salt exposure harden and crack rubber gaskets years earlier than mainland installations. You’ll see fog between the panes even when the frame looks intact.
• Cheap hardware on oversized openings. If a prior installer used inland-grade hinges and fasteners, the weight of a large casement or awning window will sag it under HVHZ wind loads. We see this constantly in older Key Biscayne condos.

Pricing for Custom & Geometric Windows in Key Biscayne, FL

What Custom & Geometric Windows Costs in Key Biscayne

We covered the opening-by-opening ranges above, so here’s the honest framing: on Key Biscayne, you’re paying for two specs at once. The impact spec every HVHZ window requires, and the marine-grade spec that salt air demands. A custom geometric window here costs more than the same shape in Homestead or Kendall because stainless hardware, corrosion-resistant frame finishes, and laminated glass interlayers aren’t optional upgrades on a barrier island. They’re the baseline.

The cheaper inland-spec version of the same window looks fine for three or four years, then the hardware starts to fail, the seal breaks down, and you’re paying twice. We’d rather quote you the right thing once. Free in-home measure, written quote, no trip charge inside our home county, and $40 off any repair over $200. Seniors and veterans get 10% off, permanently.

If you choose impact windows instead of hanging shutters, you get permanent protection with no panels to store, no tracks to maintain, and no scramble when a storm is 48 hours out. We don’t sell shutters. We sell windows that stay in the opening and do the job every day, not just during a storm.

Florida Pays You Back

Florida offers real incentives for impact window work, and Key Biscayne homeowners should know about them before they sign anything. The My Safe Florida Home program provides matching grants up to $10,000 for qualifying wind-mitigation upgrades, and impact-resistant windows and doors are exempt from Florida sales tax. On top of that, the federal 25C energy credit can return 30% of the product cost, up to $600 per year on qualifying units. After a wind-mitigation inspection, which typically costs $75 to $150, many Key Biscayne homeowners see windstorm premium credits averaging around 25% on the windstorm portion of their policy. We can’t promise what your carrier will approve, but we can point you to the right inspector and documentation.

Every window we install on Key Biscayne carries a Miami-Dade NOA and Florida Product Approval for its exact configuration. Design pressures are matched to the opening, never exceeding a +/-100 PSF ceiling, and we don’t guess at wind speeds. Your home’s location on the island determines the required wind zone, and we calculate it opening by opening.

We Also Serve Cities Near Key Biscayne

Our crews serve Key Biscayne and the surrounding area, including Miami Beach, Miami, Coral Gables, and North Miami Beach. Scheduling is coordinated from our Miami office, and the same Key Biscayne crew handles the coastal spec work across the bay. If you’re just off the island, call (863) 656-0462 and we’ll get you measured.

FAQs - Custom & Geometric Windows in Key Biscayne

Call Winslow Windows & Doors for Custom & Geometric Windows in Key Biscayne

You’re on an island that punishes shortcuts. Salt on both sides, hurricane code with no exceptions, and building boards that want it done their way. We understand that, because we’ve done this work here long enough to know what survives and what doesn’t. Call (863) 656-0462 for your free estimate, and you’ll get a written line-item quote, honest answers, and Ed’s name standing behind every window we install. The one down the road.

Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Key Biscayne and South Florida since 2011.