Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Big Pine Key
Window replacement in Big Pine Key carries a set of rules most mainland contractors never deal with. Monroe County’s High-Velocity Hurricane Zone code governs every opening, and homes here sit between two bodies of salt water that punish hardware faster than nearly anywhere in the continental U.S. We know that because our crews work these islands steadily, opening stilt homes built in the 1960s through 1980s and finding what Irma left behind. If you need window replacement in Big Pine Key, call (754) 238-2201 and we’ll send a background-checked, uniformed technician to measure twice and quote manufacturer lines side by side on paper.
Here’s what most homeowners on Big Pine Key want to know up front, answered plainly: a full-frame impact-rated window replacement on a typical stilt home here runs roughly $1,800-$4,200 per opening, depending on the manufacturer line and what’s hiding in the wall. Insert replacements run lower, and storm window upgrades sit between. The estimate is free, the pricing is written line by line, and we register both warranty layers before the truck leaves your driveway.
Why TruePane Windows & Doors Is Big Pine Key’s Preferred Window Replacement Company
TruePane was founded in 2008 by second-generation glazier Dale Kessler on a rule that still names the company: if the pane is not true, the job is not done. We’re not a franchise operation cycling through subcontractors. Our technicians are background-checked, uniformed, and trained in the specific demands of Keys construction, including Monroe County HVHZ code, elevated stilt framing, and marine-grade hardware selection. When we quote a window on Big Pine Key, we’re quoting for a house that takes salt spray from the Atlantic on one side and Florida Bay on the other. That changes the hardware, the flashing, the sealant, and the warranty paperwork.
The Done Right Promise sits behind every job, and it’s written down, not implied. If the work isn’t right, we make it right. No paperwork fights, no arguing. That promise is part of The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before we leave the driveway. Most homeowners tell us they’d rather pay once for a job done square than twice for a bargain that fails inspection. That’s who we build for.
Our Window Replacement Services in Big Pine Key
Big Pine Key’s housing stock is a patchwork: pre-Irma elevated stilt homes with original aluminum jalousie or single-pane windows, a smaller number of mobile and manufactured homes rebuilt after 2017, and newer post-hurricane construction already built to current impact codes. That spread means the right approach changes from street to street, and sometimes from opening to opening on the same house. These are the four services we do most often here.
Full Frame Replacement
Full frame replacement is the service that separates a real glazier from a crew that swaps glass. On Big Pine Key, opening an exterior wall on a 1960s-1980s stilt home routinely exposes undersized or water-damaged framing, outdated wiring, and failed waterproofing. We inspect first, write allowances into the contract, and price any surprise in writing before we touch it. That’s the difference between a window that holds and a window that gets reinstalled twice.

Insert Window Replacement
When the existing frame is square, level, and code-compliant, an insert replacement keeps the job tighter and faster. We measure every opening twice, order the insert to fit, and set it with marine-grade sealant and new flashing. On Big Pine Key, we see a lot of inserts going into post-Irma rebuilds where the original frame was set correctly but the glazing has failed. The work still gets the same warranty registration and the same Done Right Promise.

Storm Window Replacement
Big Pine Key sits in the path of Irma’s eyewall. That’s not a marketing line; it’s a construction reality. Storm window replacement here means installing units rated for the same High-Velocity Hurricane Zone standards as Miami-Dade: impact glass, fusion-welded frames, reinforced hardware. We quote PGT, CGI, and CWS lines side by side on paper so you see exactly what you’re buying. There’s no upgrade path after the storm; the window either meets HVHZ code or it doesn’t.

Energy-Efficient Upgrade
Between the UV, the humidity, and the heat, Big Pine Key homes burn through cooling. Replacing single-pane jalousie windows with low-E, argon-filled impact units cuts the solar gain and the electric bill in the same job. We’ve seen older stilt homes on canals near Eden Pines drop their cooling load noticeably after swapping out four or five original openings. The energy savings are real, and the windows are built for the next storm, not just the next summer.

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 Big Pine Key
TruePane is an authorized installer for more than a dozen manufacturer lines, and we quote PGT, CGI, and Ply Gem side by side on paper so you see the difference in glass, frame, and warranty before you spend a dime. For Big Pine Key customers, we keep marine-grade hardware in stock, which means less waiting when a hinge or locking mechanism fails under salt-air corrosion. If you have an existing Window Replacement need or want to compare manufacturers, we’ll bring the samples to your kitchen table, not a showroom.
Common Window Replacement Problems We See in Big Pine Key Homes
- Hidden non-HVHZ replacements. A significant number of Big Pine Key homeowners received Irma insurance payouts and swapped damaged windows without pulling Monroe County permits. The openings look fine until a home sale or re-insurance inspection flags them, or until we open the wall for a remodel and find a single-pane unit with no flashing tape standing in for an impact-rated assembly.
- Aggressive salt-air corrosion. Positioned between the Atlantic Ocean and Florida Bay, Big Pine Key takes bidirectional salt spray that corrodes aluminum frames, stainless hinges, and door hardware faster than nearly anywhere else in the U.S. Even properly installed impact products here need more frequent hardware and seal service than the same units on the mainland. We quote marine-grade components by default.
- Rot and undersized framing in older stilt homes. Homes built in the 1960s through 1980s with original aluminum jalousie windows often have water-damaged jambs, notched headers, and wiring run through places no inspector would approve today. Opening a wall for window replacement on a Big Pine Key stilt home is where the real scope reveals itself.
- Failed glazing seals from UV and humidity. The combination of relentless sun and high humidity breaks down glazing seals faster here. Fogged glass, condensation between panes, and warped frames are the telltale signs. In Big Pine Key’s climate, these aren’t cosmetic issues; they’re points where water and salt are getting into the wall assembly.
Pricing for Window Replacement in Big Pine Key, FL
A typical full-frame impact-rated window replacement in Big Pine Key runs $1,800-$4,200 per opening. Insert replacements run $800-$1,700 per opening when the existing frame is sound and code-compliant. Storm window upgrades for HVHZ compliance run $1,400-$3,000 per opening. Energy-efficient upgrades with low-E argon-filled glass add roughly $150-$350 per unit over standard impact glass. The biggest variables are what’s inside the wall once we open it, the manufacturer line you choose, and whether Monroe County requires additional electrical or framing corrections. Call (754) 238-2201 for a free written estimate. We price line by line, and any change once walls are open gets your approval in writing first.
Local topography matters in our pricing too. Homes on canal-front lots in Big Pine Key, especially around Eden Pines and the bayside stretches, often have worse salt exposure than inland lots, which pushes us toward more expensive marine-grade hardware from the start. We’d rather quote the right hardware once than replace chrome that fails in three years.
We Also Serve Cities Near Big Pine Key
Our crews cover the Lower and Middle Keys, including Marathon, Key Colony Beach, Key West, and Tavernier. The same inspection-first process, the same HVHZ code discipline, and the same written warranty registration travel with us. If you’re outside Big Pine Key proper, ask about scheduling for Window Replacement in Big Pine Key and the surrounding islands.
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 - Window Replacement in Big Pine Key
Monroe County’s High-Velocity Hurricane Zone code requires every window and door replacement to be permitted, inspected, and installed to impact-rated specifications. If we open a wall and find a post-Irma replacement that was done without a permit, we stop work, document the opening, and write an allowance for the correction before we proceed. That means reframing if needed, bringing the opening to current HVHZ code, and pulling the proper permit retrofit. Call (754) 238-2201 if you suspect your Big Pine Key home has unpermitted windows, and we’ll help you sort it before a resale inspection does.
Big Pine Key’s bidirectional salt spray, Atlantic on one side and Florida Bay on the other, corrodes standard stainless hardware and aluminum frames far faster than mainland locations. Hinges bind, locking mechanisms seize, and frame joints oxidize within five years on budget hardware. TruePane quotes marine-grade components by default, including 316 stainless hardware and corrosion-resistant frame finishes, and we register the manufacturer warranty against this environment in writing. If you need hardware replacement or service, call (754) 238-2201.
The most common triggers on Big Pine Key stilt homes are undersized headers, water-damaged framing, and electrical that’s out of code. If a header was notched for old wiring and the wall is open, Monroe County requires correction before we can close it. We inspect first, write allowances into the contract for framing, electrical, and waterproofing, and get your written approval before any scope change. That’s the difference between a $2,000 opening and a $5,000 opening, and we make sure you know which one you have before we cut.
The most reliable sign is an absence of a Monroe County permit record for the work, but on the wall itself, look for single-pane glass, no visible impact film or laminated interlayer, missing or damaged flashing tape, and frames that don’t match the HVHZ sticker requirement. Unpermitted post-Irma replacements are surfacing as deal-killers during home sales and re-insurance inspections on Big Pine Key. If you’re not sure what’s in your openings, call (754) 238-2201 and we’ll tell you what to look for.
Yes. Elevated stilt construction exposes the wall assembly to wind-driven rain from underneath, not just from above and the sides. That changes the flashing sequence, the sill pan design, and the sealant requirements. On a canal-front street near Eden Pines, we opened an exterior wall for a full-frame replacement and found the original 1978 aluminum jalousie had been swapped after Irma without a permit, using no flashing tape and a rotten jamb. We pulled it, found the undersized header had been notched for old wiring, and wrote the allowance before reframing, running new circuits, and installing a fusion-welded, impact-rated casement with low-E glass and argon fill, then pulled the permit retrofit so the whole assembly met Monroe County HVHZ code. Call (754) 238-2201 for an estimate on your stilt home.
Get a Free Window Replacement Estimate in Big Pine Key
If your windows are original to a 1960s-1980s stilt home, or if you suspect post-Irma work was done without permits, don’t wait for a resale inspection to force your hand. Call TruePane Windows & Doors at (754) 238-2201 and schedule a free estimate. A live person answers the phone 24 hours a day, 7 days a week. We’ll measure twice, quote PGT, CGI, and other manufacturer lines side by side on paper, and register both warranty layers before we leave the driveway. That’s the square deal, in writing.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Big Pine Key since 2008.
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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