Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterFast, Reliable Window Replacement Across Big Coppitt Key
Window replacement in Big Coppitt Key means impact-rated glazing that meets Monroe County’s ~180 mph 3-second gust wind design standard, period. A typical full-frame impact window replacement on the island runs $1,400 to $3,200 per opening depending on size, brand, and how much framing repair the salt air has made necessary. Most jobs take one to two days once the permit clears. If you’re weighing options after Irma or just tired of corroded frames that won’t open, call us at (754) 238-2201 and we’ll give you a straight answer on what your house actually needs.
We know Big Coppitt Key not as a dot on a map but as a place where open saltwater sits on both sides of nearly every street. That changes what gets specified on a window order, and it changes what survives here past five years. Our crews work the lower Keys regularly, and when we quote a window for a home off Avenue J or near the north end by Boca Chica Road, we’re quoting for the wind, the spray, and the humidity this island actually throws at a house.
Why TruePane Windows & Doors Is Big Coppitt Key’s Preferred Window Replacement Company
TruePane is led by Dale Kessler, a second-generation glazier who founded the company in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. That rule matters more on Big Coppitt Key than almost anywhere in Florida, because a window that is out of true by an eighth of an inch will leak wind-driven rain at 180 mph gust speeds, and the island does not give a house a second chance to find out politely.
We are an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows, so a quote from us comes with side-by-side options on paper rather than one brand the salesperson happens to push. Both warranty layers get registered in writing before our truck leaves your driveway. The Done Right Promise backs the workmanship with no paperwork fights and no arguing. If something is not right, we make it right. That is the standard on the first visit and the baseline for every callback.
Big Coppitt Key homeowners tend to remember exactly which contractor left them with a fogged seal and a door that binds in July. We plan to be remembered differently. Our technicians are background-checked and uniformed. They measure every opening twice. They quote before they install. And a live person answers our phone 24 hours a day, seven days a week, because a homeowner standing in a house with a failed window at 9 p.m. should not have to talk to a voicemail tree.
Our Window Replacement Services in Big Coppitt Key
Full Frame Replacement
Full frame replacement means pulling the entire window down to the rough opening and setting a new, completely flashed and anchored unit. On Big Coppitt Key, this is the most common path for post-Irma rebuilds and for older concrete-block homes whose original aluminum frames have corroded past the point of retrofit. We re-flash the jamb-to-block interface with marine-grade flashing tape, set the new frame square and true, and close everything up so that wind-driven rain at storm speeds has no path into the rough opening.
Expect a full frame impact window on Big Coppitt Key to run $1,600 to $3,200 per opening, installed. The spread depends on the opening size, the manufacturer line, and whether we discover framing rot or spalling concrete behind the old frame once it comes out. We quote that honestly, in writing, before work begins.
Storm Window Replacement
On Big Coppitt Key, “storm window” does not mean a removable secondary pane. Monroe County code requires fully rated impact products on every replacement opening, which means a laminated impact glazing unit or an approved impact-resistant window system. We install PGT WinGuard, CGI Sentinel, and ES Windows impact lines that carry the Florida Product Approval numbers and Miami-Dade NOA documentation the county inspector will ask for.
Storm window replacement on a typical Big Coppitt Key single-family home runs $1,400 to $2,800 per opening. The price reflects the laminated glass, the reinforced frame extrusion, and the stainless or marine-grade hardware we specify on salt-facing elevations.
Energy-Efficient Upgrade
Energy efficiency on Big Coppitt Key is not a luxury upgrade. It is how you keep a house livable in August when the humidity sits at 90 percent and the sun hammers a west-facing elevation over Florida Bay. We spec low-E coatings and insulated glass packages that hold the U-factor under 0.30, which meets or beats what Monroe County expects on a replacement opening and keeps your cooling bill from running away with itself.
An energy-efficient impact window upgrade on Big Coppitt Key typically runs $1,500 to $3,000 per opening. The low-E coating, argon fill, and laminated impact glazing all factor in. We quote manufacturer lines side by side so you see exactly what the performance difference costs before you spend a dollar.
Insert Window Replacement
Insert replacement works when the existing frame is still structurally sound and square, which on Big Coppitt Key usually means a newer post-2017 rebuild or a home that had its frames replaced after Irma. We fit a new impact-rated sash and glazing into the existing frame, re-seal the perimeter, and verify the anchors still hold at design wind load. If the frame fails inspection, we will tell you, and we will quote a full frame replacement instead of selling you an insert that will not pass.
Insert window replacement on Big Coppitt Key runs $1,200 to $2,200 per opening, assuming the existing frames are salvageable.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Big Coppitt Key
We are an authorized installer for CGI, ES Windows, and CWS, among more than a dozen other manufacturer lines. That matters on Big Coppitt Key because the island’s two-sided salt spray punishes hardware and frame coatings harder than most of mainland South Florida. We stock marine-grade stainless hardware and replacement components locally, so when a latch seizes or a balance fails, we are not ordering a part and telling you to wait two weeks. We bring the right product the first time.
If you are replacing windows after Irma or hardening a house that survived it, ask us for a side-by-side quote across two or three impact-rated lines. The documentation will show the design pressure rating, the Florida Product Approval number, and the hardware spec. You should see all of that before the truck leaves your driveway.
Common Window Replacement Problems We See in Big Coppitt Key Homes
- Salt corrosion on aluminum frames and hardware. Big Coppitt Key has open saltwater on both the Atlantic and Florida Bay sides, so every elevation gets spray. Standard aluminum hardware seizes within two years on ocean-facing windows; marine-grade stainless is not an upgrade here, it is the baseline.
- Failed seals and fogged glass on pre-Irma units. Homes that rode out Irma with original windows often show fogged double-panes and brittle seals. The humidity and salt accelerate seal failure faster than the manufacturer’s typical coastal timeline.
- Flashing failures at the jamb-to-block interface. Replacement windows flashed with butyl tape only will eventually leak on Big Coppitt Key. Wind-driven rain at 180 mph finds the gap, and the rough opening rots behind the new frame. We use marine-grade flashing tape and verify the seal before the inspector arrives.
- Shutter-plus-standard-window packages that fail inspection. Monroe County does not allow non-impact windows paired with removable shutters as a code-compliant strategy. A contractor who quotes that package to save a few hundred dollars will fail permit review, and the homeowner is the one who eats the delay.
Pricing for Window Replacement in Big Coppitt Key, FL
Window replacement on Big Coppitt Key runs $1,200 to $3,200 per opening, depending on whether you need an insert, a full frame replacement, or a full frame with framing repair. Here is the honest breakdown:
- Insert impact window: $1,200 to $2,200 per opening
- Full frame impact window: $1,600 to $3,200 per opening
- Energy-efficient impact upgrade: $1,500 to $3,000 per opening
- Framing repair or re-flashing (if needed): $150 to $600 per opening, quoted after we see the rough opening
What changes the price most on this island is salt damage hiding behind the old frame and the specific wind-load documentation your elevation requires. We quote fixed prices with no change orders, and we walk you through the permit line items before work starts. Call (754) 238-2201 for a free estimate. You will get a written line-item quote, not a vague phone number and a handshake.
TruePane offers a permanent 5% discount for seniors and veterans on Big Coppitt Key. We also run a maintenance check and a free written repair estimate. Those are standing offers, stated plainly, with no fine print that covers neither.
We Also Serve Cities Near Big Coppitt Key
Our crews work the lower Keys and the broader South Florida coast, so if you have family or a rental property in Anna Maria, Acacia Villas, Alafaya, or Altamonte Springs, we can schedule Window Replacement work there too. For homes on the island, see our local page for Window Replacement in Big Coppitt Key and call the number above for scheduling.
Serving Big Coppitt Key, FL - Our Local Coverage Area
We’re based in the Big Coppitt 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 Coppitt Key
No, the wind design standard is the same across unincorporated Monroe County, including Key West, Marathon, and Big Coppitt Key: roughly 180 mph 3-second gust. The difference is that Big Coppitt Key’s narrow footprint means both elevations of your house take salt spray and wind, so the hardware and flashing details matter more than on a mainland lot with a true leeward side. Call (754) 238-2201 and we will explain exactly what rating your opening requires.
Monroe County requires every replacement opening to be a fully rated impact product. You can do one window at a time, but every window you touch must meet the impact standard. We quote single-opening replacements on Big Coppitt Key regularly and will register the warranty on each unit as it goes in.
Keep the Florida Product Approval and NOA documentation for the specific window model, the permit and inspection record from Monroe County, and both warranty registration layers in writing. That packet is what an insurer wants when you ask for a wind mitigation credit or file a claim after a storm. We register both warranty layers before our truck leaves your driveway, and we give you the documentation packet on the spot. Call (754) 238-2201 for a free estimate and a checklist of what you should hold onto.
Because the island has open saltwater on both the Atlantic and Florida Bay sides, and there is no windward or leeward safe face. Every elevation takes spray, humidity, and salt, which means standard aluminum hardware and frame coatings degrade years ahead of the manufacturer’s typical coastal timeline. We spec marine-grade stainless hardware on Big Coppitt Key, not as an upsell but as the minimum that survives here.
No. Monroe County does not allow non-impact windows paired with removable shutters as a code-compliant strategy for replacement openings. Every window we install on Big Coppitt Key is a fully rated impact product with the documentation to match. If another contractor quotes you shutters plus standard glass, that permit will not clear. Call (754) 238-2201 and we will quote the compliant product the first time.
What Monroe County Code Actually Requires on Big Coppitt Key
Here is the part most window quotes on this island leave out. Monroe County’s wind-load and impact-glazing code applies to every replacement opening, including retrofits of surviving Irma-era homes. The design speed is roughly 180 mph 3-second gust, and the product must carry Florida Product Approval and Miami-Dade NOA documentation. That is not negotiable, and it is not something a contractor can waive with a cheaper package.
On Avenue J, our crew replaced four seal-failed double-hungs in a 1970s concrete-block house that had ridden out Irma with plywood and luck. The original aluminum frames were so salt-corroded the sashes had to be cut out, and the new ViewLux impact-rated casements required re-flashing the jamb-to-block interface with marine-grade flashing tape before the Monroe County building inspector would sign off. Because the opening was in the windward elevation facing Florida Bay, we upsized the stainless hardware and used laminated impact glazing with a low-E coating to hold the U-factor under 0.30.
That is what a compliant window replacement on Big Coppitt Key involves. A cheap quote that leaves out the marine-grade flashing, the stainless hardware, or the laminated impact glazing will fail inspection, waste your time, and leave you with an opening that leaks the first time a real storm tests it. We do not cut those corners, and we will not quote you a package that does.
Big Coppitt Key sits at roughly Mile Marker 9-10 in the lower Florida Keys, one of the areas that took a direct Category 4 hit from Hurricane Irma in September 2017. That storm destroyed or severely damaged a large share of the island’s housing stock, and the dominant local demand now is Monroe County-code-compliant impact window and door replacements on post-Irma rebuilds and on surviving older homes that owners are finally hardening. Many of those homes are elevated on concrete pilings under FEMA-mandated flood elevation requirements, which complicates framing, flashing, and threshold work compared to slab-on-grade construction. We account for that in every quote, because a window that works on a slab house in Miami will not necessarily set true on a piling house off Avenue J.
If you are replacing windows on Big Coppitt Key, call (754) 238-2201. We will give you a free estimate, a written line-item quote, and a straight answer about what your openings actually need to pass inspection and hold up to the salt. Both warranty layers get registered before our truck leaves the driveway, and the Done Right Promise stands behind the work. The pane will be true, or the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Big Coppitt Key and the lower Florida Keys with impact-rated window replacement.
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.