Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Key Biscayne
Custom window and door work on Key Biscayne means matching Miami-Dade HVHZ code requirements to a salt-eaten barrier island where frames corrode from every direction at once. That’s the job we do every week here. When you need Custom Windows & Doors that fit a 1970s condo opening, a Mediterranean-style front entry, or a floor-to-ceiling ocean-view wall, we measure twice, quote the manufacturer’s line on paper, and register both warranty layers before the truck leaves your driveway. Call (954) 280-4413 and you’ll reach a live person who knows the island’s buildings, its HOA realities, and its permit triggers. We’ve done this work on Key Biscayne long enough to know what opens up when walls come open.
Key Takeaways for Key Biscayne Homeowners
- Every replacement window on Key Biscayne must carry Miami-Dade Notice of Acceptance (NOA) certification. No exceptions under HVHZ rules.
- Omnidirectional salt spray here corrodes aluminum frames and hardware in 5-7 years, roughly twice as fast as Coral Gables a few miles west.
- A typical custom window job on Key Biscayne runs $1,400-$4,200 per opening, with full custom-shape and oversized work higher.
- Pre-Andrew original windows are failing across entire condo floors at once. HOA bulk replacement is a major share of island work.
- We handle HOA coordination, Miami-Dade permitting, structural inspection, and the surprises that hide inside old walls.
Why TruePane Windows & Doors Is Key Biscayne’s Preferred Custom Windows & Doors Company
Dale Kessler founded TruePane in 2008 after years of watching out-of-true installs and voided warranties pile up on homeowners who’d been told the cheapest bid was the smart bid. The company has served South Florida communities since 2008 through a craft tradition that treats every install like the one that keeps a customer calling back in thirty years. That matters on Key Biscayne because the island doesn’t forgive shortcuts. Salt air finds every gap. Wind load finds every weak frame. HOA boards find every missing NOA label.
Our crews work the island regularly, from the condo towers along Crandon Boulevard to the single-family streets east of Crandon and the gated sections nearer the Cape Florida light. We know which buildings predate Andrew and which units still carry original aluminum sash. We know the difference between a fogged IGU in a 1970s double-hung and a failed impact lite in a post-1992 retrofit. That local pattern recognition means a faster diagnosis and a quote that says what it means the first time. A live person answers our phone 24/7. When you call Key Biscayne, you get someone who has been on the island this month, not a regional call center reading a script.
Our Custom Windows & Doors Services in Key Biscayne
Custom Shape Windows
Arched transoms, radius-top casements, trapezoids, portholes, and full custom geometry. Key Biscayne’s Mediterranean and ranch-era homes lean on shaped openings that big-box replacement lines don’t cover in stock sizes. We template each rough opening, order the exact radius and leg dimensions from authorized manufacturers, and set the glass true. Custom shape windows on the island typically run $1,800 to $4,600 per opening depending on size, grid pattern, and impact-glazing requirements. The NOA certification is part of every quote we write here, not an add-on.

Commercial Storefront Glazing
Retail and restaurant storefronts on Key Biscayne eat salt like everything else on the island. Aluminum storefront systems pit and freeze, glass loses its clarity at the edges, and old gaskets crumble inside the frame. We replace commercial storefront glazing on Crandon Boulevard and the small commercial clusters along the island, working after hours where needed to keep a business open. Storefront glass replacement here starts around $45-$75 per square foot installed, with structural storefront systems pushing into the $90-$140 range when wind load and impact framing come into play.

Curtain Wall Systems
Mid-rise and high-rise curtain wall work on Key Biscayne is not a one-off glass swap. The wind loads on a barrier island tower, combined with Miami-Dade HVHZ engineering requirements, demand that every lite and every pressure bar match the original system’s tested assembly. We handle curtain wall diagnosis, unitized and stick-system replacement, and full floor-line reglazing with NOA-rated glass. Condo boards call us when one floor shows seal failure across every unit and the building engineer flags it for the next reserve study. Curtain wall reglazing projects here typically start at $120-$180 per square foot and are quoted per project after a full elevation survey.

Architectural Grilles & SDLs
Simulated divided lites (SDLs) and architectural grilles are standard on the island’s Mediterranean and colonial revival homes. The old aluminum SDL bars heat up, oxidize, and loosen against the glass, and the look in a fogged pre-Andrew sash is rarely worth saving. We rebuild SDL patterns in impact-rated insulating glass with color-matched internal bars so the window reads like the original at the curb and performs like a current HVHZ product. A typical SDL replacement window in Key Biscayne adds $180-$420 per opening over the base window cost depending on bar profile and pattern density.

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 Key Biscayne
TruePane is an authorized installer for more than a dozen manufacturer lines, and on Key Biscayne we lean on the names engineered for South Florida’s wind and brine: PGT, CGI, CWS, and Ply Gem. We stock common replacement parts for these lines in our South Florida service vehicles so a hardware failure or a sash replacement doesn’t wait on a factory order from the Midwest. When we quote your job, you get two or three manufacturer lines side by side on paper, with the NOA rating, the warranty layer, and the installed price written out. You see exactly what you’re buying before you sign anything.
Common Custom Windows & Doors Problems We See in Key Biscayne Homes
- Omnidirectional salt corrosion. The island is ringed by Biscayne Bay and the Atlantic, so aluminum frames and casement hardware here pit and freeze in five to seven years, not the fifteen you’d see in Coral Gables. We routinely pull original 1970s sashes whose balance springs and hinge pins are fused solid from salt exposure.
- Failed insulated glass seals in pre-Andrew originals. Homes and condo units built before 1992 still carry original aluminum windows with single-thickness IGUs that have been losing argon for decades. Fogged panes and condensation between the lites are the usual first signal, often appearing across every unit on the same floor of a Crandon Boulevard tower at once.
- Undersized or rotted framing under old windows. Miami-Dade wind-load rules have changed since the 1970s. When we pull original aluminum frames, the rough opening is often framed thinner than current code requires. We inspect every opening, photograph what’s there, and write an allowance into the contract before we start so the HOA board or homeowner isn’t surprised by a framing upgrade mid-job.
- HOA building-wide replacement triggers. When a condo board on Key Biscayne votes a window replacement program, the scope is every unit on a floor or every elevation on the tower. The coordination with building management, the engineer, and Miami-Dade permitting is the job. We’ve done this on Crandon Boulevard and in the towers along the beach, and our crew runs the permit and pull logistics as one package.
Pricing for Custom Windows & Doors in Key Biscayne, FL
A typical custom-shaped impact window in Key Biscayne runs $1,800 to $4,600 per opening. A standard impact casement or double-hung with NOA rating runs $1,400 to $3,200. SDL grilles add $180 to $420 per window. Oversized glass panels for ocean-view elevations start around $110 per square foot installed and climb with crane access, floor height, and impact requirements. Curtain wall and storefront work is quoted per project after a site survey.
What moves the number most on Key Biscayne is what’s behind the old frame once we open the wall. Original 1960s-1970s construction often has undersized king studs, no header over wide openings, or water-damaged sheathing that Miami-Dade’s inspector will flag. We always inspect first, write an allowance for framing and waterproofing into the contract, and price any additional condition in writing for approval before we touch it. Call (954) 280-4413 to schedule a free estimate. We’ll walk the openings with you, take measurements, and put the numbers on paper.
Typical Key Biscayne window and door pricing:
- Standard impact casement or double-hung, NOA-rated: $1,400-$3,200 per window
- Custom shape window (arch, radius, trapezoid): $1,800-$4,600 per window
- Architectural SDL grille upgrade: $180-$420 per window
- Oversized glass panel (impact-rated, crane-set): $110-$160+ per square foot
- Curtain wall or storefront reglazing: $120-$180 per square foot, project-quoted
- Full HOA building-wide replacement program: quoted after elevation survey and engineer review
What Opens Up When Walls Come Open on Key Biscayne
This is the part of a window replacement quote that catches people off guard, and it’s the single biggest reason a Key Biscayne job moves after the contract is signed. Key Biscayne is a narrow barrier island completely ringed by saltwater and governed by Miami-Dade’s High Velocity Hurricane Zone. Every replacement window here must carry Miami-Dade NOA certification, and the frames carrying those windows are sitting inside walls that have been breathing salt mist for forty or fifty years. When we pull an original 1970s aluminum sash out of a mid-rise off Crandon Boulevard, the rough opening commonly reveals framing that’s undersized for today’s wind-load tables, flashing that never got taped to begin with, and sheathing that turns to powder at the probe. The window was never the whole job. The wall around it is.
That’s why we inspect before we quote. Every opening gets looked at from both sides, probed where rot is suspected, and measured against current Miami-Dade structural requirements. We write an allowance into the contract for framing, flashing, and waterproofing, and if a header or a king stud needs to come up to code, we price it and send it to you in writing before we cut anything. You approve it, then we do it. No surprise line items on the final bill, no change order you never saw coming. On a 1970s mid-rise along Crandon Boulevard, our crew replaced the failing original aluminum double-hungs across three units on the same floor. We coordinated a single pull with building management and Miami-Dade permitting, swapped in NOA-rated impact glazing with fusion-welded frames, and rewrapped every rough opening with flashing tape before trimming out the new sashes. The building got one permit pull, one crew, one inspection, and three units done true.
We Also Serve Cities Near Key Biscayne
Our crews work the wider South Florida coast as well. Beyond Key Biscayne, we handle custom window and door replacements in Miami Beach, Miami, Coral Gables, and Hialeah. The same NOA-rated products, the same inspection-first quoting, and the same live person on the phone.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne 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 Windows & Doors in Key Biscayne
Every replacement window on Key Biscayne must carry Miami-Dade Notice of Acceptance certification because the entire island sits inside Miami-Dade County’s High Velocity Hurricane Zone. The HVHZ is the strictest window and door code in the United States, and a condo association or city inspector will reject any product without an NOA number. There is no exemption for upper floors, interior units, or small openings. If a contractor quotes you a window for Key Biscayne without an NOA, walk away from that quote. Call (954) 280-4413 and we’ll show you the NOA paperwork on every line we propose.
Expect aluminum frame and hardware failure in five to seven years on Key Biscayne, versus roughly fifteen years in mainland neighborhoods like Coral Gables. The island is completely surrounded by Biscayne Bay and the Atlantic, and the salt spray hits windows from every compass direction at once. Stainless steel hinges, balance springs, and casement operators that hold up for years across the Rickenbacker Causeway will pit and seize here in half that time. That’s why hardware selection and frame finish matter more on this island than anywhere else in the county.
Yes. We handle full building-wide replacement programs on Key Biscayne, including the Crandon Boulevard towers, and we manage the HOA coordination, the engineering review, the Miami-Dade permit pull, and the installation schedule as a single package. The association gets one contract, one point of contact, and one inspection cycle. Unit owners get a defined install window and a crew that’s background-checked, uniformed, and already familiar with the building’s floor plan. We’ll register both manufacturer warranty layers in writing before we start, and every unit gets the same Done Right Promise.
Undersized or deteriorated framing around the original window opening is the main driver. Many of the island’s 1960s through 1980s buildings were framed to older wind-load standards, and decades of salt exposure have weakened the sheathing and rough framing. When we pull the old sash and the inspector sees what’s behind it, the opening often needs reframing, reflashing, or both. We write an allowance for framing and waterproofing into every Key Biscayne quote, and any actual cost is priced and approved by you in writing before work proceeds. No surprise line items on the bill.
Yes. Oversized glass panels for ocean-view condos and beachfront homes on Key Biscayne are a regular part of our work. The panels are impact-rated, NOA-certified, and engineered to the exact wind-load pressure for the building’s height and exposure. High-rise installs require crane lifts or sled-and-rig systems, which we coordinate with building management and the city. A typical oversized panel installation runs $110 to $160 or more per square foot installed depending on access, glass thickness, and whether the work is on an occupied upper floor. Call (954) 280-4413 and we’ll survey the elevation and give you a written line-item number.
Get Your Free Custom Windows & Doors Estimate in Key Biscayne
If the pane is not true, the job is not done. That’s the rule Dale Kessler has kept on the whiteboard since day one, and it’s the rule our crews work to on every Key Biscayne job, from a single fogged double-hung in a ranch house off Crandon to a full tower elevation reglaze. We measure every opening twice, quote the manufacturer line on paper with the NOA rating listed, and register both warranty layers in writing before we leave the driveway. The workmanship is guaranteed for 90 days with no paperwork fights and no arguing. Call (954) 280-4413 to schedule your free estimate, and you’ll get a live person on the phone who knows Key Biscayne’s buildings, its HOA boards, and the code required to do the job right.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Biscayne since 2008 through a family craft tradition.
Six Reasons Homeowners Choose TruePane 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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