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Before
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Before
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AfterFast, Reliable Window Installation Across Key West
Window installation in Key West carries a set of rules that do not exist anywhere else in the country. If you live in Old Town, your replacement windows need to clear both Monroe County’s Miami-Dade NOA impact-glazing approval and the Historic Architectural Review Commission’s aesthetic review. If you live anywhere on the island, your frames, seals, and hardware are fighting salt spray that corrodes standard aluminum within a few seasons. TruePane Windows & Doors has worked both sides of that equation for years, and we know which impact profiles have already passed HARC review. Call (954) 280-4413 and we will walk you through what applies to your house before you spend a dollar.
Why TruePane Windows & Doors Is Key West’s Preferred Window Installation Company
We are not a mainland contractor who drives down once in a while and hopes for the best. Our crews serve Key West regularly, and we know what a Fleming Street lot looks like at 25 feet wide, what a Conch house jalousie frame does when you pull it out of an elevated pier wall, and what the county inspector expects to see on the NOA sticker before he signs off. Dispatch and scheduling run through our South Florida office, but the work in Key West is done by the same background-checked, uniformed technicians every time. If a customer calls with a question after the job, a live person answers. Not a voicemail tree. That matters on an island where word travels fast and a contractor’s reputation is either earned or buried by the third Old Town block party.
Dale Kessler founded this company in 2008 on a simple rule that still governs every install: if the pane is not true, the job is not done. We register both manufacturer warranty layers in writing before the truck leaves your driveway. That is The Keystone Standard, and it covers every window we set in Key West, from a fixed picture unit in a Bahama Village cottage to a full casement replacement in a Casa Marina estate.
Our Window Installation Services in Key West
We install, replace, and service the full range of residential windows. In Key West specifically, the conversation usually starts with one of these four types, because they are what the older housing stock and the HARC review process tend to demand. Here is what you can expect from our Window Installation team on each.
Casement Windows
Casement windows are the workhorse replacement for Old Town jalousie units that fail HARC review when you propose a standard single-hung. A casement with a multi-lite profile can mimic the louvered look closely enough to clear aesthetic review while carrying a full Miami-Dade NOA impact rating. The hardware is crank-operated, which holds up better in salt air than sliding tracks that clog with corrosion, and the compression seal is tighter against wind-driven rain. In Key West, a casement impact replacement typically runs $1,100 to $2,400 per opening, depending on size and custom profile work.
Awning Windows
Awning windows hinge at the top and open outward, which makes them a practical fit for Key West’s older Conch houses where wall framing is tight and you need ventilation during the rainy months without letting water in. They are common above transom lines and in bathrooms, and they can be built to match the multi-lite pattern HARC expects on a historic facade. Salt spray eventually attacks the hinge hardware, so we spec marine-grade stainless on every awning unit we install on the island. Expect $900 to $1,800 per opening for a standard impact-rated awning window in Key West.
Fixed & Picture Windows
Fixed and picture windows do not open, which actually simplifies the HARC conversation in some cases: there is no operating hardware to clash with a historic profile, and a fixed multi-lite impact unit can preserve the look of a transom or a large front window without mechanical compromise. The trade-off is ventilation, which matters on an island where cross-breeze is the original air conditioning. We often pair a fixed picture unit with flanking casements or awnings to keep air moving. Fixed impact windows in Key West generally run $700 to $1,600 per opening installed, with larger custom sizes pushing higher.
Single & Double Hung
Single and double hung windows are the most common replacement in Key West’s newer construction and the mid-century concrete-block homes east of White Street. Double hungs with impact glass and marine-grade balances hold up well here, but the wrong frame finish will not. We specify heavy anodized aluminum or vinyl with UV-stabilized profiles, because bare mill aluminum corrodes visibly within two to three seasons of salt exposure. A single hung impact replacement typically runs $800 to $1,500 per window in Key West. A double hung runs $950 to $1,900, depending on size and grid pattern.
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 West
We are an authorized installer for more than a dozen manufacturer lines, and in Key West the brands that matter most are the ones with proven Miami-Dade NOA approvals and HARC-recognized profiles. PGT and CGI both build impact windows that have cleared HARC aesthetic review in Old Town, which means we can quote them with confidence instead of hoping the commission signs off. Ply Gem offers a strong mid-range line for newer construction and non-historic neighborhoods. We quote manufacturer lines side by side on paper, so you see exactly what you are buying, what it costs, and what the warranty covers. Our Key West customers get the same manufacturer warranty registration we provide everywhere, with both layers in writing before we leave.
Common Window Installation Problems We See in Key West Homes
- HARC rejections on standard impact windows. A homeowner buys an impact window that meets code, but the profile does not match the original louvered or multi-lite look. HARC denies it, and the window has to be torn out and reordered. We keep a current list of NOA-approved profiles that have already passed HARC review, so the first order is the right one.
- Salt-spray corrosion on frames and hardware. Standard anodized aluminum and cheap door hardware fail fast in Key West’s salt air. We see frames with visible pitting and crank mechanisms seized within three seasons when a mainland contractor spec’d residential-grade material. Every Key West install from TruePane uses marine-grade or heavy-anodized finishes and stainless hardware where it matters.
- Tight-access staging failures. On a 25-foot-wide lot off Fleming Street, there is nowhere to put a dumpster or a pile of windows. A crew that does not plan staging blocks the lane, angers the neighbors, and triggers noise complaints. We stage from the truck and the covered porch, and we pre-notify adjacent property owners before any work that touches a shared wall.
- Fogged double-hung seals from humidity and salt. A double-hung that fogs between the panes has a failed seal, and in Key West it is usually accelerated by years of salt-laden humidity working on the edge seals. If the sash is original to a 1980s or 1990s home, replacement is usually the smarter call than a glass-only swap, because the frame is nearing the end of its life too.
Pricing for Window Installation in Key West, FL
Window installation costs in Key West run higher than Miami-Dade’s mainland averages, and there is an honest reason for it. The ferry distance and bridge logistics add to material delivery, and tight Old Town lots add labor hours for hand-carrying material where a lift or a dumpster cannot reach. A straightforward single hung impact replacement on a standard opening runs $800 to $1,500. A custom casement built to mimic a Conch house jalousie and clear HARC review runs $1,100 to $2,400 per opening. Fixed picture windows run $700 to $1,600. A full-house replacement on a 1,200-square-foot Conch cottage typically lands between $14,000 and $28,000, depending on how many openings need custom profiles. Every quote includes a line item for tight access when staging is constrained, and we explain that line before you sign. Estimates are free, written, and honest. Call (954) 280-4413 to schedule yours.
We Also Serve Cities Near Key West
Our crews work throughout the Lower Keys and the middle Keys. If you are in Big Pine Key, Marathon, Key Colony Beach, or Tavernier, the same TruePane team handles your window installation, with the same Keystone Standard and the same warranty registration in writing before we leave the driveway. The logistics and the permit paths change a bit from island to island, but the workmanship does not.
Serving Key West, FL - Our Local Coverage Area
We’re based in the Key West 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 Installation in Key West
Yes, but only if the replacement profile mimics the louvered or multi-lite appearance of the original. HARC routinely rejects standard impact windows on historic Conch houses. The practical path is a Miami-Dade NOA-approved casement or awning with a divided-lite pattern that reads visually as a jalousie from the street. We keep a current list of specific impact profiles from PGT, CGI, and CWS that have already cleared HARC review in Old Town, which means your replacement clears both inspections the first time. Call (954) 280-4413 for a free estimate on a HARC-compliant replacement.
We stage materials in the truck and on the covered porch, not in the lane. On a 25-foot-wide lot off Fleming Street, our crew replaced a set of failed jalousie windows with custom impact-rated casements that mimic the original louvered look, and we kept the narrow lane clear the entire time by hand-carrying each unit to the opening as needed. We also pre-notified the adjacent property owner before lagging flashing tape into the shared party wall. If a site truly cannot accommodate safe staging, we say so on the quote instead of discovering it on day one. The tight-access line item exists for a reason, and we are glad to explain it before you sign.
Heavy anodized aluminum or UV-stabilized vinyl with marine-grade stainless hardware. Standard mill-finish aluminum and residential-grade hardware corrode visibly within two to three seasons in Key West’s salt air, and we see it constantly on windows installed by mainland crews who never adjusted their spec. We spec marine-grade or heavy-anodized finishes on every Key West install, whether it is a casement crank, an awning hinge, or a double-hung balance. The right finish costs a little more up front and saves a full replacement inside of five years.
Yes. Fog between the panes means the insulated glass unit’s seal has failed and moisture is getting inside. In Key West, salt-laden humidity accelerates the failure, and once the seal is gone the window loses its insulating value and its clarity. On an older double-hung with the original sash, we usually recommend full replacement rather than a glass-only swap, because the frame is often near the end of its useful life too. The cost for a double-hung impact replacement in Key West runs $950 to $1,900 per window depending on size. Call (954) 280-4413 and we will tell you honestly whether the sash is worth saving.
Because we actually looked at your lot and planned the staging before quoting. Many Old Town lots have no room for a dumpster, no space for a material pile, and no way to get a lift close to the house. Hand-carrying impact windows through a narrow side yard and staging from the truck adds labor hours. A contractor who omits that line item either has not visited the site or plans to leave a surprise on the final bill. We would rather tell you the real cost up front and let you decide. Estimates are free, written, and line-itemed. Call (954) 280-4413 to schedule one.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key West and the Florida Keys with craft-standard window installation and The Keystone Standard on every job.
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.