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 Big Pine Key
Custom window and door work in Big Pine Key comes with a set of rules most mainland contractors never learn. Monroe County’s High Velocity Hurricane Zone code means every opening you touch has to carry a Miami-Dade NOA rating, and the salt air off the Atlantic and Florida Bay corrodes standard hardware faster than anywhere else in the continental U.S. TruePane has been doing this work long enough to know that a jalousie-to-impact swap on a 1960s stilt home rarely stops at the glass. When you call Custom Windows & Doors in Big Pine Key, you get a crew that measures twice, prices the reframe before the wall is open, and registers both warranty layers in writing before the truck leaves your driveway. Ready to talk specifics? Call (954) 280-4413.
Why TruePane Windows & Doors Is Big Pine Key’s Preferred Custom Windows & Doors Company
We have pulled enough original jalousie frames out of Keys homes to know what is behind them before the saw comes out. Big Pine Key homeowners call us because the work done right the first time is cheaper than the callback, and because Dale Kessler’s rule still hangs on the shop wall: if the pane is not true, the job is not done. That standard covers every custom unit we set, from an arched transom on a canal-front rebuild to a full curtain wall on a commercial storefront.
Our dispatchers coordinate from our South FL office, and the crew that shows up at your door on Big Pine Key is background-checked, uniformed, and local to the Lower Keys. We answer the phone with a live person 24 hours a day, not a voicemail tree, and we put our pricing on paper before we start cutting. The Done Right Promise backs every job. Both manufacturer warranty layers get registered in writing, with durations stated, before we leave. No paperwork fights, no fine print that covers neither.
Big Pine Key has a particular housing stock: elevated stilt homes from the pre-Irma era, surviving manufactured units, and newer post-2017 rebuilds that went up fast. We know which ones have original 1950s aluminum frames, which have undersized rough openings, and which need a full reframe before a custom unit will ever seal correctly. That knowledge is not something a mainland franchise can claim.
Our Custom Windows & Doors Services in Big Pine Key
Our Custom Windows & Doors team handles the full range of residential and light commercial work on the island. Here is what that looks like in practice on Big Pine Key.
Custom Shape Windows
Arched, oval, trapezoid, radius, eyebrow. Custom shapes are common on Big Pine Key rebuilds where owners want a view corridor or a specific architectural line. Every custom shape still has to carry a Miami-Dade NOA, which rules out most off-the-shelf products. We quote manufacturer lines side by side on paper so you see exactly what you are buying, and we measure every opening twice before the order goes in.

Commercial Storefront Glazing
Big Pine Key’s commercial strip along Overseas Highway includes a handful of older storefronts that have not been touched since the 1970s. Salt corrosion on aluminum storefront frames is aggressive here, and failed storefront seals let in wind-driven rain during the summer storm season. We replace storefront glazing with NOA-rated impact systems and reframe where the existing channel is too corroded to hold a new unit.

Curtain Wall Systems
For larger openings and the occasional small commercial project, we install curtain wall systems that meet Monroe County HVHZ requirements. These are engineered assemblies, not just bigger windows. The mounting brackets, the anchors, the sill flashing - every component has to be spec’d for marine exposure or the system will fail within a few wet seasons. We price the engineering into the quote up front, not as a surprise add-on.

Architectural Grilles & SDLs
Simulated divided lites and architectural grilles are a popular look on Big Pine Key rebuilds, especially on custom homes with cottage or coastal styling. We can match a true divided lite pattern on an impact-rated unit without compromising the NOA. The grille profile, the spacer bar, the interior and exterior finish - it all gets specified on the quote before you sign.

Oversized Glass Panels
Big Pine Key sits low and flat, and the best views are often on the second story of a stilt home. Oversized glass panels let you take advantage of that elevation. But a 10-foot panel rated for HVHZ exposure is a serious piece of engineering. The glass is thicker, the frame is reinforced, and the rough opening has to be perfectly square. We have set oversized panels on enough canal-front houses to know what the wind does to a big pane at 80 mph, and we frame accordingly.

What happens when you call
- 1
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 Big Pine Key
We are an authorized installer for more than a dozen manufacturer lines, and on Big Pine Key we lean heavily on PGT, CGI, and Ply Gem for impact-rated custom work. Those three build units specifically for the South Florida HVHZ market, and we know their NOA numbers well enough to quote them accurately. Because Big Pine Key is a smaller market than Miami, we keep the most common replacement hardware and sealant in our Lower Keys inventory rather than waiting on a mainland shipment. That means less downtime when a custom sash has to be re-glazed or a hinge replaced mid-season.
Common Custom Windows & Doors Problems We See in Big Pine Key Homes
- Salt-corroded jamb flanges on original aluminum frames. Homes built before 1980 with jalousie windows almost always have aluminum flanges that are oxidized past reuse. Setting a new custom unit into that opening without a full reframe leaves the jamb unsecured and voids the NOA rating.
- Failed seals on post-Irma impact units. The rebuild wave after 2017 put up a lot of impact windows fast, and some installers used mainland-spec stainless hardware and sealants that were never designed for Big Pine Key’s salt loading. We see sash sag and seal failure on units that are only three to five years old.
- Undersized rough openings on stilt homes. Older elevated homes were framed for jalousie units, which are shallow and forgiving. A modern NOA-rated custom unit is deeper and heavier. If the rough opening is not reframed, the new window sits proud of the wall, the flashing never laps correctly, and water gets behind the jamb inside the first wet season.
- Failed waterproofing behind original frames. Salt-laden humidity works its way behind old jalousie frames and rots the sill plate over decades. We open the wall and find the damage. A new window set over the old flashing still leaks. The waterproofing detail is part of the job, not an afterthought.
Pricing for Custom Windows & Doors in Big Pine Key, FL
Here is what we see on Big Pine Key for custom work, based on the openings we have actually priced on the island.
- Custom shape impact window (single opening, NOA-rated): $1,800-$4,200 installed
- Jalousie-to-impact conversion (per opening, including reframe): $2,400-$5,000 installed
- Oversized glass panel (8-10 ft, HVHZ-rated): $4,500-$11,000 installed
- Commercial storefront glazing replacement (per storefront bay): $3,500-$9,000 installed
- Architectural grilles or SDLs added to an impact unit: $450-$1,200 per unit
What moves the number in Big Pine Key is the condition of the rough opening. A clean post-2017 rebuild with a square opening costs less than a 1960s stilt home where the sill plate is rotted and the jamb flanges have corroded away. We write allowances into every quote for exactly that reason, and any surprise gets priced and approved in writing before we cut anything. Call (954) 280-4413 and we will give you a line-item estimate for your specific openings. Estimates are free.
We Also Serve Cities Near Big Pine Key
Our crews also run regular routes to Marathon, Key Colony Beach, Key West, and Tavernier. If you are just off the Overseas Highway on Little Torch Key or Cudjoe Key, you are still in our service area. Call and a live person will tell you when we can be there.
Serving Big Pine Key, FL - Our Local Coverage Area
We’re based in the Big Pine Key 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 Big Pine Key
No. Monroe County’s HVHZ code requires every permitted window or door replacement to carry a Miami-Dade NOA or Florida Product Approval, and jalousie windows cannot be made impact-compliant. Any renovation that touches a jalousie opening triggers a mandatory upgrade to an NOA-rated impact unit. That conversion is one of the most common jobs we do on Big Pine Key. Call (954) 280-4413 for an exact quote on your openings.
Because Big Pine Key sits surrounded by open water in the Lower Keys, and the salt spray loading here is among the most intense in the continental U.S. Mainland-spec stainless hardware, even when stamped 304 or 316, oxidizes within three to five years under constant salt exposure. We spec marine-grade 316 stainless or coated hardware on every Big Pine Key install, and we register the hardware warranty in writing.
Almost never. Original 1960s aluminum frames on Big Pine Key have typically corroded at the jamb flanges from decades of salt spray, and the rough openings are undersized for modern NOA-rated units. Installing a new custom window into that opening without a full reframe leaves the jamb unsecured and voids the NOA rating. We price the reframe into the allowance up front.
It can. When a permit is pulled on Big Pine Key and the wall is opened, the Monroe County building official often flags outdated wiring or mechanical equipment that is now exposed, which can trigger a code-required upgrade. We explain this before we start, and we write allowances into the contract so the surprise is handled with written approval, not a change order fight.
Yes to both. Custom shapes like arches, ovals, and trapezoids are available in NOA-rated impact glass, but the NOA applies to the specific size and shape you order. A custom shape that falls outside the manufacturer’s tested sizes may require a special engineering stamp or a different product line. We quote that accurately before you commit. Call (954) 280-4413 and we will spec your opening.
What Actually Happens When Your Big Pine Key Remodel Opens a Wall
Here is the part most mainland window pages will not tell you. On Big Pine Key, opening a wall for a custom window is rarely a simple cut-and-set. Monroe County’s HVHZ code mandates that every opening touched during a permitted renovation gets upgraded to a Miami-Dade NOA-rated impact unit. So a homeowner who starts with one jalousie window and a plan to convert it to impact glass may find that the permit review requires replacement of every opening on that elevation. That is a code requirement, not an upsell. And it changes the scope before the first cut is made.
We have seen what that means in the field. On a 1960s stilt home off Long Beach Drive, our crew opened a wall to replace three jalousie units with custom impact-rated casements and found the original aluminum jamb flanges had corroded past reuse from decades of salt spray. We priced a full reframe into the allowance: new pressure-treated bucks, flashing tape at every sill, and resealed joints at the sheathing. The homeowner got written approval before we cut into the next opening, so there was no surprise line item after the wall was open. That is how we work on Big Pine Key, and that is why the quote we give you is built to hold.
We have been at this long enough to know what a fair job costs, what the code requires, and what the salt does to shortcuts. If you want a square deal, a written warranty, and a crew that shows up when we say we will, call (954) 280-4413 and ask for a free estimate. We will walk your openings, tell you what the wall is likely to reveal, and put the number on paper before you sign anything.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Big Pine Key with custom window and door work done right the first time.
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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