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
Window replacement in Stock Island runs $900 to $2,800 per opening for a full-frame, impact-rated install, and the number moves based on whether you’re in a CBS cottage near Maloney Avenue or a manufactured home off Fifth Street. We work the island every week and know what the Monroe County inspector is going to check before we write the quote, because a window that passes code in Orlando gets a red tag here. Call (813) 320-9346 for a line-item estimate with exact Miami-Dade NOA ratings listed on paper, not promised over the phone.
This page was written by Dale Kessler, Owner at TruePane Windows & Doors, so Stock Island homeowners can see exactly what a compliant quote includes and what a cheap one leaves out.
Why TruePane Windows & Doors Is Stock Island’s Preferred Window Replacement Company
We’re not a lead generator that sub-contracts your project to the lowest bidder. We’re TruePane Windows & Doors, started by second-generation glazier Dale Kessler in 2008, and our crews have been pulling permits and passing inspections on Stock Island long enough to know the local failure modes by heart. We install impact windows that meet Monroe County’s High Velocity Hurricane Zone code, and we register both manufacturer warranty layers in writing before the truck leaves the driveway. That’s The Keystone Standard, and it’s a written promise, not a slogan.
Homeowners on Stock Island call us because our technicians show up in uniform, background-checked, and ready to measure every rough opening twice. The ones who call us back do it because the first install held through a summer storm and the warranty claim, when it came, was handled by a live person. Not a voicemail tree. Not a callback form. A person.
Being an authorized installer for more than a dozen manufacturers means we can quote, PGT, and CGI side by side on paper so you see exactly what you’re buying. No brand has a quota on our trucks. The Done Right Promise covers every job, and we’ve been known to sponsor county fairs and church roof funds because a company that plans to stay in town for thirty more years acts like it.
Our Window Replacement Services in Stock Island
Full Frame Replacement
Most Stock Island homes built before 1990 need full-frame replacement, not inserts. The old aluminum frame has pitted from salt air, the rough opening is out of square, and the jalousie tracks are making contact with the sill in ways that will never seal. We remove the entire assembly down to the studs, inspect the rough opening, replace rotted or salt-damaged wood with pressure-treated bucks, and set a fusion-welded impact-rated unit with marine-grade flashing and sealant. This is the only path to a window that passes Monroe County inspection and holds an insurance claim.

Insert Window Replacement
Insert replacement works when the existing frame is structurally sound and the opening is still square, which happens in limited cases on Stock Island. Some newer CBS homes near Cross Street with good frames and minor seal failure can take an insert with impact-rated glazing, but we are careful recommending this. If the frame was installed before hurricane code, it will not carry wind load. We will tell you if an insert is not the answer and why a cheap quote saying otherwise is setting you up for a failed inspection.

Storm Window Replacement
Some Stock Island homes still have the old two-track storm windows over primary sashes and homeowners want to refresh them. On a barrier island under HVHZ code, field-framed storm windows rarely meet NOA requirements. The practical fix is usually a full-frame impact-rated unit that does the job the storm window was faking. If you want to explore keeping a storm-window appearance, we quote Miami-Dade NOA-approved impact lines from PGT and Simonton that deliver the same sightline without compromising the structure.

Energy-Efficient Upgrade
The same factors that rust aluminum frames also stress glass coatings. Salt haze, constant humidity, and UV exposure on the flats side of Stock Island take years off standard low-E glass. We quote glass packages with marine-grade coatings, argon fill, and warm-edge spacers sized for the island’s saltwater exposure. For most customers the energy savings matter, but the real reason to upgrade is that the window stops sweating at 3 a.m. and the frame stops bleeding white oxidation onto the sill.

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 Stock Island
We install and service more than a dozen manufacturer lines, but on Stock Island the conversation usually comes down to a few workhorses. PGT builds impact-rated windows specifically for South Florida’s HVHZ market, and their WinGuard line is a common choice for full-frame replacements on CBS homes. Simonton’s StormBreaker Plus carries Miami-Dade NOA ratings in a range of sizes that fit many island openings. CGI makes heavy-duty aluminum impact units that stand up to the salt spray along Fifth Street and the water-facing lots. Because our crews work Stock Island every week, we keep common hardware, seals, and balance systems for these brands in the truck, which means the second visit, if there is one, happens days faster.
Common Window Replacement Problems We See in Stock Island Homes
- Jalousie windows that cannot be made hurricane-safe. Stock Island still has hundreds of pre-Andrew homes with louvered jalousie windows. They leak air, they corrode, and they can’t meet HVHZ wind-load ratings. The only compliant fix is complete removal and replacement with NOA-approved impact units.
- Corroded aluminum frames on older manufactured homes. The salt spray on Stock Island eats the structural flange and the sill track from the inside out. We see impact-rated sashes bolted into frames that fold at 140 mph because the frame itself was too far gone. If the frame is pitted through, the whole assembly gets replaced, not dressed up.
- Non-standard rough openings on pre-Andrew manufactured homes. Many island manufactured homes were built with rough opening sizes that do not match modern impact-window SKUs. A contractor who works the mainland and orders standard stock will burn a month waiting on custom-order units. We measure twice and quote the custom size the first time.
- Failed sealant work from mainland installers who don’t understand saltwater. On Stock Island, sealant is a structural component. The wrong caulk fails in two seasons, lets salt air into the rough opening, and starts the rot cycle. We use marine-grade sealants and flashing tape on every exterior penetration, and the Done Right Promise means if a seal fails, we redo it without arguing.
Pricing for Window Replacement in Stock Island, FL
Full-frame impact-rated replacement in Stock Island typically runs $1,200 to $2,800 per opening, including permit, flange-to-flange labor, and Miami-Dade NOA-rated glazing. A simple aluminum impact window in a standard CBS opening on a street like 4th Avenue will sit at the lower end. An older manufactured home requiring custom bucks, structural frame repair, or marine-grade hardware on a water-facing lot lands at the top. Insert replacements, where the existing frame is still sound, range from $900 to $1,500 per window. Storm replacement depends almost entirely on whether the opening is standardized or needs custom sizing.
Three things drive cost on Stock Island more than anything else: the NOA rating the unit must carry, the condition of the existing rough opening, and whether the house is CBS or manufactured. The permit itself runs roughly $150 to $400 depending on the number of openings and whether the county requires a wind-load calculation. We don’t guess at these numbers. You get a written, line-item quote before work starts, and the price on that sheet is the price on the final bill. Call (813) 320-9346 for your free estimate.
We Also Serve Cities Near Stock Island
Our crews serve Stock Island and the surrounding areas, including Acacia Villas, Alafaya, Altamonte Springs, and Altoona. If you’re outside the island but still need a Window Replacement expert who understands South Florida wind-load code, we’ll bring the same Keystone Standard to your door. For full details on our Window Replacement in Stock Island coverage, visit the local page.
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
Yes. Stock Island is entirely within Monroe County’s High Velocity Hurricane Zone, the same designation that covers Miami-Dade and Broward. Any glazed opening that gets permitted, even a single pane of glass, must carry a Miami-Dade Notice of Acceptance rated for design wind speeds above 180 mph. If a contractor tells you different, you’re about to pay for a window that will not pass inspection. Call (813) 320-9346 and we’ll show you the NOA paperwork before you sign anything.
No. Jalousie windows cannot meet HVHZ wind-load requirements, with or without storm panels, because the louvered mechanism itself cannot withstand 180 mph design pressures. Monroe County inspectors will not issue a passing inspection on a jalousie window in a permitted exterior opening. The only compliant fix is full removal and replacement with NOA-approved impact-rated units. We see older island homes every month where a previous owner put up panels and called it done; it was not.
Stock Island windows cost more because they must carry Miami-Dade NOA ratings that most windows sold elsewhere in Florida don’t have. A standard impact window that passes Florida Building Code in Orlando often fails Monroe County’s stricter HVHZ review, which means the product itself is more expensive. Then add the labor realities: older manufactured homes with non-standard rough openings, CBS cottages with corroded frames that require full tear-out, and marine-grade flashing and sealants that are mandatory on the island. A $700-per-opening quote you saw for a mainland house is probably for a non-NOA unit that will get red-tagged here. We quote the compliant product the first time, so you don’t pay twice. Call (813) 320-9346 for exact pricing on your house.
Probably yes, but only if the work is permitted, inspected, and documented with Miami-Dade NOA paperwork on file with the county. Insurance carriers in Monroe County will not apply an impact-rated credit based on the words “impact window” on a sales receipt. They want the permit number, the inspection sign-off, and the NOA rating for each unit. That’s exactly what we deliver: a closed permit, a passed inspection, and a file folder your agent can use to request the discount. We don’t handle the insurance negotiation, but we give you the documentation the discount depends on.
We recommend fusion-welded vinyl or marine-grade aluminum with anodized or PVC-clad hardware for every water-facing opening on Stock Island. The salt spray from the flats and the Gulf rots standard aluminum in under a decade, and wood frames on a water lot are a maintenance burden from day one. For most island homes, a heavy-duty vinyl line from Simonton or PGT strikes the right balance of corrosion resistance and HVHZ rating. For homes right on the water, CGI’s marine-grade aluminum is the better call because it handles direct salt exposure longer. We’ll quote both side by side and explain why each makes sense for your specific lot. Call (813) 320-9346 for a free, no-pressure comparison.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Stock Island with impact-rated replacement windows and the Done Right Promise.
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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