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Before
After
Before
After
Before
AfterFast, Reliable Window Replacement Across Key Largo
Window replacement in Key Largo isn’t a simple swap job. It’s a matter of meeting Monroe County’s 150+ mph design wind-speed mandate, choosing frames that won’t pit in the salt air, and documenting everything so your insurance company has nothing to argue about after the next storm. TruePane Windows & Doors has been doing exactly that for Key Largo homeowners since 2008. If your windows are fogged, corroded, or simply not code-compliant, call (954) 280-4413 and we’ll walk you through what your house actually needs. A live person answers, day or night.
Why TruePane Windows & Doors Is Key Largo’s Preferred Window Replacement Company
Key Largo homeowners have a long memory for contractors who used the wrong frame material and disappeared when the warranty claim came due. We’ve rebuilt a good share of that trust. Our crews know the difference between a canal-front installation on Stillwright Point and a CBS house off US-1, because we’ve worked both. We spec marine-grade anodized aluminum or impact-rated fiberglass on canal jobs as the baseline, not an upsell. On a canal-front home in the Stillwright Point neighborhood, we replaced seven-year-old aluminum windows that already showed heavy pitting on the jamb and sash from daily salt spray. Our techs went with marine-grade anodized aluminum, impact-rated glazing, and fusion-welded frames, and we staged the entire full-frame replacement from the boat dock because the house sits 12 feet up on pilings.
Every job carries the Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before our truck leaves your driveway. Dale Kessler, the second-generation glazier who founded this company, keeps one rule on the whiteboard: if the pane is not true, the job is not done. That’s why Key Largo customers call us back when the next window fails.
Our Window Replacement Services in Key Largo
We install and replace residential windows and doors across Key Largo, from elevated stilt homes on the canals to concrete block ranchers near John Pennekamp Coral Reef State Park. Each job starts with a written, side-by-side quote so you see exactly what you’re buying and what it costs. No surprise line items.
Full Frame Replacement
Full frame replacement removes the entire window down to the rough opening and rebuilds the jamb, flashing, and trim. On Key Largo canal-front homes, this is almost always the right call, because standard mill-finish aluminum frames corrode within five to seven years and corroding frames mean failed seals and fogged glass. We use marine-grade anodized aluminum or impact-rated fiberglass frames with fusion-welded corners, and we flash the opening with the tape sequence Monroe County inspectors actually look for. A typical full frame replacement in Key Largo runs $900 to $2,400 per opening depending on size and product line.
Storm Window Replacement
Keys code doesn’t accept storm shutters as an alternative on new installs the way some mainland municipalities do. Your windows themselves have to carry a Florida Product Approval for impact resistance. We can replace failed or dated storm windows with units rated for the 150+ mph design wind speeds Monroe County requires, and we’ll hand you the approval documents with the invoice. Typical storm-rated replacement windows in Key Largo run $700 to $1,800 per opening for standard sizes.
Insert Window Replacement
If your frames are still structurally sound and only the sashes and glazing have failed, insert replacement windows can preserve your existing trim and siding. This is common on Key Largo CBS homes where the concrete opening is solid and square. We measure twice, order the insert to fit, and install with fresh weather-stripping and a clean caulk line. Expect $500 to $1,200 per standard insert in this market, with cost shifting based on glass package and hardware.
Energy-Efficient Upgrade
Salt air attacks metal, but humidity attacks your cooling bill. Upgrading to low-E laminated impact glass in Key Largo reduces solar heat gain through the glass while still meeting the impact standards. On homes with direct eastern or western exposure along the Atlantic or Florida Bay, the difference is measurable within the first summer. Energy-efficient window upgrades in Key Largo typically run $800 to $2,000 per opening, and several manufacturer lines qualify for utility rebates we’ll document for you.
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 Key Largo
We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, ES Windows, and ECO Window Systems. That means we can quote manufacturer lines side by side on paper, with warranty durations stated in writing, so you can see the difference between a mid-tier impact window and a marine-grade fiberglass frame before you spend a dollar. Key Largo customers frequently ask about Window Replacement options from esoteric marine-grade lines, and we stock common replacement hardware for the major brands so we’re not waiting on a parts shipment from the mainland when a sash needs rehabbing.
Common Window Replacement Problems We See in Key Largo Homes
- Fogged or hazy insulated glass units. Salt spray and near-100% relative humidity on the canals accelerate seal failure. A seven-year-old aluminum window on a Key Largo canal lot often looks twenty years old. We replace the full sash or the entire unit depending on frame condition.
- Pitted, chalky aluminum frames. Mill-finish aluminum corrodes visibly in five to seven years on canal-front lots. The pitting isn’t cosmetic. It breaks the anodized seal, water gets behind the frame, and the opening rots. We spec marine-grade anodized aluminum or fiberglass on any canal-side job.
- Water intrusion during tropical storms. On elevated stilt homes, wind-driven rain hits the underside of the window flashing. Improper flashing tape application around the jamb is the number one cause of leaks we see on Key Largo replacements done by mainland crews. We use the full flashing sequence and we don’t skip the sill pan.
- Non-compliant windows failing inspection. If the previous owner installed non-impact-rated units without Florida Product Approval, Monroe County will flag it on inspection and your insurer can void coverage after a named storm. We replace those with compliant, documented impact units and pass the paperwork to you.
Pricing for Window Replacement in Key Largo, FL
A typical full frame replacement in Key Largo runs $900 to $2,400 per opening. Insert window replacements run $500 to $1,200. Storm-rated impact windows run $700 to $1,800 for standard sizes, and energy-efficient upgrades with low-E laminated glass run $800 to $2,000. The biggest cost drivers are frame material (marine-grade anodized aluminum and fiberglass cost more than standard vinyl), glass package, and whether the opening is on stilts requiring boat-dock or scaffolding access. We give written, line-item quotes before any work starts, and we don’t change the number once we start. Call (954) 280-4413 to schedule your free estimate.
We Also Serve Cities Near Key Largo
TruePane regularly handles Window Replacement in Key Largo and the surrounding Upper Keys. If you’re in Tavernier, Homestead, Key Colony Beach, or Marathon, our crews are already working the US-1 corridor. Call (954) 280-4413 and we’ll schedule an estimate around your schedule.
Serving Key Largo, FL - Our Local Coverage Area
We’re based in the Key Largo 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 Key Largo
Monroe County code requires impact-resistant fenestration products with a design wind-speed rating of 150 mph or higher throughout Key Largo. Your replacement windows must carry a Florida Product Approval showing they meet the Miami-Dade or Florida standard for large-missile impact. We supply and install only approved units and register both warranty layers in writing, so the documentation matches what your insurer expects.
Because Key Largo is a narrow coral-rock strip with the Atlantic on one side and Florida Bay on the other, canal-front lots have tidal water on both sides, which keeps relative humidity near 100% and deposits salt on window frames daily. Mill-finish aluminum forms micro-pits in five to seven years, and those pits break the protective oxide layer, leading to seal failure and fogged glass. Marine-grade anodized aluminum or impact-rated fiberglass is the baseline for canal-side replacements, not an upgrade.
Many Key Largo homes sit 8 to 14 feet above grade on concrete pilings, which changes how crews access the openings and how they stage materials. We’ve completed full-frame replacements on homes where the entire project had to be staged from a boat dock because there was no practical ground access to the upper floor. This also affects flashing details, because wind-driven rain hits the underside of the window. Plan for realistic access in your quote, and ask any other company how they’ll handle a stilt home before you sign.
Yes, Monroe County requires a permit for window replacement, and the work must pass inspection with documentation showing the units meet Florida Product Approval standards. We pull permits, schedule the inspections, and hand you the compliance paperwork with the completion report. A cheap bid that skips permits leaves you holding the liability, and your insurer will ask for that paperwork after a storm. Call (954) 280-4413 for an exact quote on compliant work, permits included.
If your windows are non-compliant or undocumented, your insurer can reduce or deny a hurricane claim, arguing the envelope wasn’t code-compliant. Documented impact-rated units with Florida Product Approval and a permit record protect your claim. We register both warranty layers in writing and provide the approval numbers and inspection records you’ll need. The paperwork is part of the job, not an extra.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key Largo and the Upper 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.