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 Stock Island
Impact-rated window replacement in Stock Island runs $900-$2,400 per opening for standard sizes, with full-frame work on older concrete block homes typically landing between $1,600 and $3,800 per window when you factor in marine-grade hardware and code compliance. We’re TruePane Windows & Doors, and we’ve been setting windows in Monroe County long enough to know that salt spray here does not forgive a shortcut. Call (954) 280-4413 and a live person answers, 24 hours a day, seven days a week. Not a voicemail tree, not a callback form. A person who can talk windows.
Why TruePane Windows & Doors Is Stock Island’s Preferred Window Replacement Company
Stock Island homeowners keep our number because we show up when we say and we write down what we’re doing before the truck leaves the driveway. Dale Kessler founded this company in 2008 on a rule he keeps on the whiteboard: if the pane is not true, the job is not done. That runs through every estimate, every install, and every callback. Our techs are background-checked and uniformed, and they measure every opening twice before a single quote leaves the clipboard.
We’re not a franchise playbook. We’ve served local communities across South Florida since 2008 through a craft tradition that started two glazier generations ago. Homeowners on Stock Island call us with the same three worries: Will the frame corrode in five years? Will the permit pass inspection? Will the company still answer the phone in ten years if something fails? We answer all three the same way: we stand behind it, in writing.
We register both manufacturer warranty layers before we leave your driveway. The Keystone Standard means you get the durations stated, on paper, not a vague promise from a sales rep. And our Done Right Promise covers the workmanship with no paperwork fights and no arguing. That’s the baseline for every job we do on Stock Island.
Our Window Replacement Services in Stock Island
Full Frame Replacement
Full frame replacement in Stock Island means pulling the entire old window down to the rough opening and resetting everything. On the 1960s to 1980s CBS homes that dominate this island, we’re usually looking at original aluminum frames that have been eating salt spray for forty years. The jambs are often rotted, the weep holes have crusted over with salt, and the sash won’t move without a pry bar. We cut the old frame out, inspect the buck, flash every jamb with tape, and set a marine-grade impact unit with stainless hardware. This is the job most older Stock Island homes actually need, not an insert.
Insert Window Replacement
Insert replacement fits a new window inside the existing frame. It’s faster and less expensive, and on Stock Island it’s only the right call when the existing frame is still structurally sound and free of corrosion. That’s a smaller share of homes here than on the mainland. We’ll tell you honestly if an insert won’t hold up. Most of the time, if the frame has been exposed to this much salt air, the insert is a temporary fix and the math doesn’t work in your favor.
Storm Window Replacement
Storm window replacement on Stock Island is not an accessory. It’s a code requirement. Monroe County design wind speeds exceed 150 mph, and the building department enforces impact-rated glazing on virtually all structures. We quote impact-certified storm units from manufacturers we’re authorized to install, side by side on paper, with the wind load ratings spelled out. You see exactly what you’re buying before you sign. No surprises on the bill, and no second appointment left hanging.
Historic Window Restoration
Stock Island still has a good number of original jalousie windows, that louvered glass style that defined old Keys construction. Most of them are now non-compliant with Monroe County’s wind and impact code. That doesn’t always mean full replacement. On some homes we can restore the original look using modern impact-rated louvered systems or custom fixed glass with operable vents that match the architectural character while meeting code. But we won’t restore a window that can’t be made compliant. We’ll document the code violation, show you the ordinance language, and quote the compliant replacement in the same conversation. Contractors who don’t know the local code history miss that sale every time.
Trusted Brands We Service in Stock Island
We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, ES Windows, ECO Window Systems. For Stock Island specifically, we recommend manufacturers whose marine-grade finishes and stainless hardware are engineered for constant salt exposure. ES Windows builds a fusion-welded frame that handles the corrosive environment better than mechanically fastened aluminum. PGT and CGI carry impact ratings that satisfy Monroe County’s wind codes without debate. We’ll quote two or three lines side by side on paper so you can compare the warranties, the materials, and the price before you commit.
Common Window Replacement Problems We See in Stock Island Homes
- Jalousie windows frozen shut by salt corrosion. The original louvered glass sashes on older CBS homes seize up when salt spray eats through the hardware and aluminum clips. Most are also non-compliant with current wind code, which means repair isn’t a legal option once the window fails.
- Aluminum frames pitting within five to eight years. Standard aluminum that would last 15-20 years in Miami gets pockmarked and structurally weak here because Stock Island is surrounded by open saltwater on three sides with no land buffer. Once the frame pits, water intrusion follows.
- Weep holes clogged with salt crust. Factory weep holes are designed to drain condensation, but salt spray turns them into a crusty plug. Water traps inside the frame, and the insulated glass seals fail years early. We see fogged double-panes on Stock Island homes that are only six or seven years old.
- Non-impact single-pane glass shattering during hurricane-force gusts. Wind-borne debris at 150 mph does not bounce off a single-pane window. It goes through it, and the pressure differential does the rest. We’ve replaced too many windows after storms that should never have been in the opening in the first place.
Pricing for Window Replacement in Stock Island, FL
Here’s what Stock Island homeowners can expect to pay in 2026. Insert window replacement runs $600-$1,200 per opening for standard sizes. Full frame replacement on an older CBS home runs $1,600-$3,800 per window, with the higher end reflecting marine-grade frames, stainless hardware, and the extra flashing and sealing this salt environment demands. Storm window replacement with impact-rated glazing runs $900-$2,400 per unit, depending on size and manufacturer line. Historic jalousie conversion work starts around $1,400 per opening and goes up from there based on custom sizing and structural work. The coastal-spec version of any window costs more than the inland-spec version, and we’ll show you exactly why in the estimate. Call (954) 280-4413 for a free, line-item quote. We put the numbers on paper before you commit to anything.
Stock Island and Nearby Communities We Serve
Our crews run the length of the Lower Keys and beyond. We serve Stock Island homeowners directly, and we also cover Acacia Villas, Alafaya, Altamonte Springs, and Altoona for window replacement work. If you’re on Stock Island or in a neighboring community, call (954) 280-4413 and talk to a live person today. We’ll schedule your free estimate at a time that works for you.
Serving Stock Island, FL - Our Local Coverage Area
We’re based in the Stock Island 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 Stock Island
Impact-rated windows are required on Stock Island because Monroe County’s wind zone for this island carries design wind speeds exceeding 150 mph, and the building department enforces impact glazing on virtually all structures, not just new construction. Your neighbor in Key West may live in a different wind exposure category or may have gotten a quote for non-impact glass that won’t pass inspection here. We document the code requirement for your specific address before we quote, so you’re comparing compliant work to compliant work. Call (954) 280-4413 and we’ll show you the ordinance language that applies to your home.
In most cases on Stock Island, no, because original jalousie windows are explicitly non-compliant with Monroe County’s current wind and impact code. Once they fail, repairing them back to their previous state doesn’t satisfy the building department. We can restore the look using modern impact-rated systems, but a straight repair of non-compliant louvered glass is not a legal path forward. We’ll document the code violation and quote a compliant replacement in the same visit. Call (954) 280-4413 for an exact answer on your specific windows.
Window frames on Stock Island corrode roughly two to three times faster than on the Florida mainland. Standard aluminum that might last 15-20 years in Miami typically pits and fails within 5-8 years here because the island is surrounded by open saltwater on three sides with no land buffer and near-constant salt spray. That’s why we specify marine-grade finishes, fusion-welded frames, and stainless hardware on every Stock Island job. The cheap spec costs more within a decade. Call (954) 280-4413 and we’ll show you the difference in person.
Expect to pay roughly 20-35% more for a coastal-spec window with impact-rated glazing, marine-grade frame coating, stainless hardware, and upgraded sealants compared to the inland-spec version of the same size. On Stock Island, that gap is not optional. The inland-spec window will pit, seize, and fog years early, and you’ll pay for the replacement twice. We quote both versions side by side so you can see the line items. Call (954) 280-4413 for a free estimate with actual numbers.
No, fog between the panes means the insulated glass seal has failed, and on Stock Island that’s usually from salt crust clogging the weep holes and trapping water in the frame. The window has lost its insulating gas, its energy performance is gone, and the frame corrosion will only spread. It’s not cosmetic. It’s the first stage of a window that’s on its way out. We replace sealed units and, where the frame is compromised, the entire window. Call (954) 280-4413 for a free assessment.
Contact TruePane for Window Replacement in Stock Island, FL
We recently replaced the original jalousie windows on a 1970s CBS home off Maloney Avenue after documenting that the louvered glass sashes were non-compliant with Monroe County’s current wind code. Our crew pulled the corroded aluminum frames, where salt spray had eaten through the weep holes and frozen the sashes shut, and installed impact-rated double-hung units with stainless steel hardware, fusion-welded frames, flashing tape at every jamb, and marine-grade sealant to handle the constant salt air. That’s the standard on the first visit and the baseline for every callback.
If your Stock Island windows are fogged, seized, or simply not impact-rated, call (954) 280-4413 today. A live person answers. We’ll schedule your free estimate, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves the driveway. We stand behind the work, the warranty, and the promise, in writing.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Stock Island and the surrounding Lower Keys.
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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