Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Big Pine Key
Window installation in Big Pine Key runs anywhere from $900 for a basic single-hung replacement to $4,800 or more for a large impact-rated casement with structural framing work. Most homeowners on the island pay between $1,400 and $3,200 per opening once you factor in Monroe County High-Velocity Hurricane Zone (HVHZ) compliance, permit fees, and the occasional framing surprise hidden inside an older stilt home. We’ve worked these openings long enough to know what’s behind them. Call (754) 238-2201 and we’ll walk you through the real numbers for your house, not a brochure price.
Why TruePane Windows & Doors Is Big Pine Key’s Preferred Window Installation Company
Big Pine Key doesn’t build like the mainland. After Irma took most of the island’s housing stock apart in 2017, the rebuild codes got stricter, the inspections got harder, and the salt air never let up. We’ve spent years as glazing craftsmen learning exactly how this environment treats a window opening, and we measure twice before we quote once. Dale Kessler founded TruePane in 2008 on a rule that still governs every job: if the pane is not true, the job is not done.
Our crews show up in uniform, background-checked, and ready to pull the old unit and see what’s actually in the wall. Big Pine Key homeowners tell us the same things over and over: they want a company that answers the phone, shows up on time, and doesn’t leave a fogged seal or a binding sash behind. That’s our baseline, not our sales pitch. A live person answers our phones 24 hours a day, 7 days a week, and the person you talk to knows windows, not a script.
Our Window Installation Services in Big Pine Key
Casement Windows
Casement windows are the workhorse of Big Pine Key impact protection. They seal tight on all four sides, crank open for the salt breeze off Florida Bay, and lock down hard when a storm is coming. A typical casement replacement in Big Pine Key runs $1,200 to $3,400 per opening depending on size and whether the existing frame is salvageable. Many of the pre-Irma homes we open up need full frame replacement, not just a sash swap.

Single & Double Hung Windows
Single and double hung windows are common in Big Pine Key’s older stilt homes, but the original units we find are usually single-pane aluminum from the 1960s through 1980s. They leak air, rattle in the wind, and wouldn’t pass an HVHZ inspection on their best day. We install energy-rated hung windows from Ply Gem and PGT with tilt-in sashes and reinforced meeting rails. Expect $900 to $2,800 per opening for a compliant replacement, more if framing needs work.

Sliding Windows
Sliding windows make sense on Big Pine Key where you want cross-ventilation from the Atlantic side to the bay side. The problem is that years of double-sided salt spray corrodes the tracks, hardens the rollers, and eventually seizes the sash in the frame. We replace sliding windows with marine-grade hardware and stainless steel rollers that hold up to the environment. Budget $1,000 to $3,000 per unit in most Big Pine Key homes.

Fixed & Picture Windows
Fixed and picture windows give you the view without the mechanical parts that salt air destroys. On Big Pine Key, a large picture window facing the water is one of the best investments you can make, if it’s HVHZ-rated and properly flashed. We frame, set, and seal fixed windows to withstand wind loads that most mainland installers never think about. Pricing starts around $1,100 and goes up with glass size and impact rating.

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, including PGT, CGI, and CWS. We stock local parts and common hardware for Big Pine Key jobs, which means less waiting when a sash needs a new roller or a latch fails. When you work with us, you get side-by-side quotes on paper showing exactly what each manufacturer line costs and what each warranty covers. We register both warranty layers in writing before the truck leaves your driveway. That’s The Keystone Standard, and it’s not negotiable.
Common Window Installation Problems We See in Big Pine Key Homes
- Hidden non-HVHZ windows from unpermitted post-Irma repairs. A lot of Big Pine Key homeowners took insurance payouts after 2017 and swapped windows without pulling Monroe County permits. The units look fine from the street, but they fail home sale inspections and re-insurance walkthroughs, forcing emergency compliance work before closing.
- Corroded aluminum jamb anchors and stainless hardware from salt spray. Big Pine Key sits between the Atlantic and Florida Bay, so salt attacks a window from both sides at once. We regularly replace anchors that have crumbled to white powder inside otherwise decent-looking frames, causing sashes to bind and seals to fail within a few seasons.
- Undersized or rotted framing inside older stilt homes. A simple window swap on a 1960s or 1970s elevated home often turns into structural work once we open the wall. Studs that looked fine from the outside are punky, undersized, or missing hurricane straps entirely, and that has to be fixed before any new window goes in.
- Fogged glass on relatively new installations. When a seal fails on a Big Pine Key window, humidity from two coastlines gets between the panes fast. We see it on units installed by out-of-town crews who didn’t account for the thermal cycling this island gets, and we replace the glass or the sash under warranty when it’s covered.
Pricing for Window Installation in Big Pine Key, FL
Here’s what you can expect to pay in Big Pine Key for common window work, installed and permitted:
- Single hung replacement (HVHZ impact, standard size): $900 - $1,800
- Double hung replacement (HVHZ impact, standard size): $1,200 - $2,400
- Casement window (HVHZ impact, medium to large): $1,400 - $3,400
- Sliding window (HVHZ impact, standard to wide): $1,000 - $3,000
- Fixed or picture window (HVHZ impact, water-facing large format): $1,100 - $4,800+
- Structural framing repair before install (when hidden damage is found): $400 - $2,500 per opening
What moves the price? The condition of the existing frame, whether the opening was permitted and compliant after Irma, the size of the glass, and whether we find rotted studs or missing hurricane straps once the old unit comes out. We write allowances into every contract so you know the ceiling before we start, and any change order gets priced and approved in writing before we touch the wall. Call (754) 238-2201 for a free estimate on your specific openings.
About Our Big Pine Key Remodel Process
Opening up an older Big Pine Key home rarely ends at the window. We’ve pulled original aluminum jalousie windows on stilt homes off Key Deer Boulevard and found undersized framing, corroded anchors, and waterproofing that gave up years ago. That’s why our process is inspection first, allowances in writing, surprises approved before work begins. We don’t hide behind vague line items and we don’t send a change order after the fact.
On one 1970s stilt home, our crew pulled an original aluminum jalousie window to find undersized framing and corroded anchors from decades of bidirectional salt spray. We wrote a change order for new pressure-treated king studs and hurricane straps, installed a fusion-welded impact casement with low-E glass and argon fill, and passed the Monroe County inspection on the first visit. That’s how a square deal works: you know what we found, you approve what we charge, and the job gets done right.
We Also Serve Cities Near Big Pine Key
Our crews work throughout the Lower and Middle Keys. If you’re in Marathon, Key Colony Beach, Key West, or Tavernier, the same people who serve Big Pine Key will handle your windows. See our Window Installation page for the full scope of what we do, or call us directly for a quote in your part of the Keys.
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 Installation in Big Pine Key
We stop and document it. If the opening wasn’t permitted after Irma or doesn’t meet Monroe County HVHZ standards, we write a change order for the structural and code work required before the new window can be set. You approve the number in writing, we pull the permit for the full scope, and the installation proceeds with an opening that will actually pass inspection. Call (754) 238-2201 if you suspect your windows were replaced without permits and want an honest assessment before a sale or insurance renewal forces the issue.
Yes, you need a permit for any window or door replacement on Big Pine Key. Monroe County enforces HVHZ impact standards, and a window swap without a permit is a code violation that will surface during a home sale, a re-insurance inspection, or a post-storm claim. We pull the permits, schedule the inspections, and stand behind the work through final approval. That’s part of the job, not an add-on.
Salt spray corrodes the frame, the hardware, and the glazing seals from both directions at once. That’s why we use marine-grade aluminum, stainless rollers, and fusion-welded corners on Big Pine Key work, and why we recommend an annual check of tracks, hinges, and seals as part of our maintenance check. No window is immune to this environment, but a properly spec’d impact unit with the right hardware will outlast a mainland-grade window by a decade or more.
Because the island’s humidity and thermal cycling punish weak seals quickly. When an insulated glass unit leaks, moist salt air gets inside and condenses on the glass the first time the temperature shifts. A properly fabricated and installed low-E argon unit should hold its seal for years, but if it fails, we replace it under the manufacturer’s warranty, and we register both warranty layers in writing before we leave the job. Bring us the fogged window and we’ll tell you if it’s covered.
Yes, usually by a meaningful margin. Original jalousie and single-pane aluminum windows on Big Pine Key leak conditioned air constantly, which means your AC runs harder against the island’s heat and humidity. A properly installed low-E impact window reduces air infiltration, blocks a large portion of solar gain, and pays for itself over time in lower electric bills and better indoor comfort. And you get the storm protection as the same purchase, not a separate upgrade.
Call TruePane for Window Installation in Big Pine Key
If you own a home on Big Pine Key, you already know the rules changed after Irma and the salt air doesn’t give anyone a pass. We inspect what’s in your walls, quote manufacturer lines side by side on paper, register both warranty layers in writing, and guarantee the work for 90 days with the Done Right Promise. No paperwork fights, no arguing, no fine print. Call (754) 238-2201 to schedule your free estimate. We’ll be there when we say.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Big Pine Key and the Florida Keys with honest glazing work done right.
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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