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 Jupiter Island
Window replacement in Jupiter Island carries requirements most mainland Florida towns never face. The island’s bicostal salt environment and Martin County’s coastal wind-load code mean every opening must meet impact standards, and the hardware has to survive continuous salt spray from two directions. We’re TruePane Windows & Doors, and we’ve been setting windows on barrier islands long enough to know what holds up and what fails. If you’re considering replacement windows in Jupiter Island, call (813) 320-9346 for a free estimate. A live person answers, day or night.
Why TruePane Windows & Doors Is Jupiter Island’s Preferred Window Replacement Company
Jupiter Island homeowners tend to ask the same question first: have you worked on the island before? The answer is yes. We know the difference between a mainland-grade install and what the island actually demands. Dale Kessler founded TruePane in 2008, but the craft goes back further than that – years of glazing work passed down through two generations. Dale’s rule is still on the whiteboard: if the pane is not true, the job is not done.
Our Window Replacement team includes background-checked, uniformed technicians who measure every opening twice and quote manufacturer lines side by side on paper. No surprises on the bill. The work is covered by our 90-Day Done Right Promise, backed by The Keystone Standard: both manufacturer warranty layers registered in writing before the truck leaves the driveway. If something isn’t right, we make it right. No paperwork fights, no arguing.
We serve Jupiter Island from our Miami-area office, with crews dispatched locally. We’re an authorized installer for Andersen, Pella, Marvin, PGT, and CGI, among others. A live person answers our phone 24 hours a day, 7 days a week – not a voicemail tree.
Our Window Replacement Services in Jupiter Island
Every home on Jupiter Island is different, but the conditions are consistent: salt air, high wind-load requirements, and oversized openings. Here are the services we perform most often on the island.
Full Frame Replacement
When the rough opening itself has rot, water intrusion, or structural compromise, full frame replacement is the only honest fix. On Jupiter Island, we commonly see this on older estates where the original 1970s and 1980s frames were never designed for the island’s moisture load. We remove the entire assembly – frame, sash, trim, and all – and set a new, properly flashed, impact-rated unit. For large-format oceanfront walls, this often means custom fabrication to match the opening exactly.

Insert Window Replacement
Insert replacement, sometimes called pocket replacement, keeps the existing frame and sets a new sash unit inside it. It’s a common choice on Jupiter Island when the frame is still sound but the glass has failed or the hardware has seized. The catch: insert units must still meet Martin County impact requirements. We’ll measure the existing frame and confirm whether an insert can carry the required design pressure rating. If it can’t, full frame replacement is the answer.

Storm Window Replacement
On Jupiter Island, “storm window” doesn’t mean the old aluminum add-ons from up north. It means a fully impact-rated window tested to withstand a 2×4 fired at 50 feet per second and standing up after the strike. Martin County’s coastal wind design speed approaches 170+ mph in current Florida Building Code editions. Every replacement window on the island must carry a Miami-Dade or Florida Product Approval number. We supply and install units that meet this standard and we show you the paperwork

Energy-Efficient Upgrade
Salt air is not the only thing trying to get through your windows. Jupiter Island’s sun load is relentless, and older single-pane units leak cooling all summer. We install low-E insulated glass units, often with argon fill, that cut solar heat gain without darkening the view. On oceanfront estates, we’ve watched homeowners drop their AC load noticeably after replacing west-facing glass that had been cooking since the 1990s. The right glass package also protects interior finishes from UV fade – a real concern in rooms full of art and custom millwork.

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.
Common Window Replacement Problems We See in Jupiter Island Homes
- Fog between panes in impact-rated units. Salt-driven seal failure is the quiet killer on Jupiter Island. The insulating glass seal breaks down from constant salt spray, moisture gets between the panes, and the view goes milky long before the argon fill is gone.
- Intracoastal-side hardware seizing within 3-5 years. Even west-facing, “sheltered” openings on Jupiter Island get hit with salt spray that crosses the entire island width. Hinges, multipoint locks, and threshold components pit and bind. We spec Grade 316 stainless or equivalent marine hardware on every opening, regardless of which side of the house it faces.
- Non-impact assemblies failing wind-load review. Some homeowners try to cut cost with non-impact windows and get denied at permit review. Martin County’s coastal wind-load requirements apply to every opening. If the unit doesn’t carry the right product approval, it doesn’t pass. We’ve replaced brand-new windows that were never impact-rated because the original installer didn’t know the local code.
- Failed window openings in homes rebuilt after Frances and Jeanne. A significant share of Jupiter Island’s housing stock was rebuilt or heavily renovated after the 2004 hurricanes. Those early-2000s impact windows are now 20+ years old, and many are reaching the end of their seal and hardware lifespan. We see this regularly – windows that were state-of-the-art in 2005 failing now because the salt load never stopped.
Why Jupiter Island’s Bicostal Salt Environment Changes Everything
Jupiter Island is a barrier island only a few hundred feet wide in places. Salt spray from the Atlantic crosses the entire island and settles on the Intracoastal side too. That means your west-facing windows, the ones that never see an ocean wave, corrode just as aggressively as the oceanfront glass. Mainland installers who work Hobe Sound or Stuart routinely get callback calls on Jupiter Island jobs because they spec’d the same hardware grade a mile inland. Grade 316 stainless or equivalent marine-grade hardware is the standard here, on every opening. It’s not an upsell. It’s the only thing that lasts.
We learned this the hard way on a custom estate near the island’s north end. Our crew replaced a row of failed casement windows with impact-rated units, using 316 stainless steel hinges and multipoint locks on the Intracoastal side. The original hardware had seized after four years because it was the same grade a mainland installer used a mile inland. Since the replacement, three hurricane seasons have passed with no pitting or binding. That’s the difference between spec’ing for the job and spec’ing for the address.
What Martin County’s Wind-Load Code Requires for Jupiter Island Replacement Windows
Every replacement window on Jupiter Island must carry a Florida Product Approval or Miami-Dade NOA number proving impact resistance. Martin County’s coastal wind design speed in current FBC editions approaches 170+ mph. That’s not a suggestion. Town review boards on the island typically reject non-impact assemblies outright, and a permit denial means tear-out and replacement – a second bill on top of the first.
A compliant quote for Jupiter Island includes more than the window itself. It includes the design pressure rating, the product approval documentation, the correct marine-grade hardware, and the permit and inspection steps. A cheap quote leaves some of that out. When the inspector comes, the missing paperwork becomes your problem. We register both warranty layers in writing before we leave the driveway, and we handle the permit process so the inspection passes the first time.
Documented compliance matters later, too. If a storm damages the home, your insurance carrier will ask which windows were impact-rated and whether they were installed to code. An out-of-true install, or a unit without the right approval, can complicate a claim. A compliant one, documented, makes the adjuster’s job simple. That’s why we write it all down.
Pricing for Window Replacement in Jupiter Island, FL
Window replacement in Jupiter Island runs higher than mainland Martin County, and the reason is specific: the island’s wind-load requirements and marine-grade hardware add real cost to every opening. A standard insert window replacement, impact-rated, typically runs $1,200 to $2,800 per opening. A full frame replacement on a large-format or architectural opening runs $3,500 to $12,000 or more, depending on the size and the required design pressure. Storm-rated units for oversized oceanfront glass walls, including lift-and-slide or pocket door systems, can reach $20,000 to $50,000 or more for a single assembly.
What drives the number: the size of the opening, the required impact rating, the hardware grade, and whether the existing frame is reusable. We quote manufacturer lines side by side on paper, so you see exactly what you’re buying. Call (813) 320-9346 for a free estimate. We’ll come to Jupiter Island, measure every opening, and give you a written line-item quote. No change orders later.
Window Types and Hardware We Recommend for Jupiter Island
For island homes, we lean toward impact-rated casement, awning, and picture windows with 316 stainless steel hardware. Hinges, multipoint locks, and threshold components all need the marine grade. On west-facing or Intracoastal-side openings, we spec the same hardware as oceanfront – no downgrades. For large-format openings, we recommend impact-rated sliding doors or lift-and-slide systems tested to the same design pressure as the windows.
We work with Andersen, Pella, and Marvin among our authorized lines, and we’ll quote them side by side so you can compare glass packages, warranty terms, and lead times. For coastal impact work, we also carry PGT and CGI – both built specifically for South Florida wind loads and salt environments.
We Also Serve Cities Near Jupiter Island
Beyond Jupiter Island, we provide window replacement in nearby communities including Acacia Villas, Alafaya, Altamonte Springs, and Altoona. If you’re close by and dealing with the same coastal conditions, the same standards apply: impact-rated, marine-grade, documented, done right.
Serving Jupiter Island, FL - Our Local Coverage Area
We’re based in the Jupiter 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 Jupiter Island
Replacement windows on Jupiter Island must meet Martin County’s coastal wind-load requirements, which call for impact-rated assemblies designed to withstand wind speeds approaching 170+ mph in current Florida Building Code editions. Every unit must carry a Florida Product Approval or Miami-Dade NOA number. Call (813) 320-9346, and we’ll confirm the exact design pressure rating your home’s openings require.
Because Jupiter Island is only a few hundred feet wide in places, Atlantic salt spray crosses the entire island and settles on the Intracoastal side too. Your west-facing hardware corrodes at the same rate as oceanfront hardware. The fix is Grade 316 stainless or equivalent marine-grade hardware on every opening, regardless of which side of the house it faces. Call (813) 320-9346 for an exact quote – estimates are free.
Yes. Replacement windows on Jupiter Island require a permit through Martin County, and the work must pass inspection. We handle the permit application and coordinate the inspection. If the windows don’t carry the right impact documentation, the permit won’t pass – which is why we register both warranty layers and file the product approvals before we leave the driveway. Call (813) 320-9346 and we’ll walk you through the process.
Documented impact-rated window compliance makes a claim simpler and often helps with premium discounts. If a storm damages the home, your insurer may ask which openings were impact-rated and whether they were installed to code. Our documentation, including both warranty layers registered in writing and the product approval papers, answers those questions immediately. Call (813) 320-9346 for a free estimate and we’ll show you exactly what documentation you’ll receive.
Full-frame replacement removes the entire window assembly down to the rough opening and rebuilds it, which is often required on Jupiter Island’s large-format oceanfront and Intracoastal openings where the original frame can’t carry the required impact rating. Insert replacement keeps the existing frame and sets a new unit inside, which can work in some cases but must still meet Martin County’s impact standards. Call (813) 320-9346, and we’ll measure your openings and tell you honestly which approach fits.
Contact TruePane Windows & Doors in Jupiter Island
If you’re ready to replace windows on Jupiter Island, call (813) 320-9346 for a free estimate. A live person answers, 24 hours a day, 7 days a week. We’ll schedule a time to measure your openings, quote manufacturer lines side by side on paper, and give you a written line-item price. No surprises, no change orders. Done right, in writing, the first time.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Jupiter Island with impact-rated window replacement and coastal-grade hardware 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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