Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Key West
Custom window and door work in Key West means navigating two masters at once: Monroe County’s 180+ mph wind-load code and the Historic Architectural Review Commission’s eye for period-correct detail. Most contractors trip over one or the other. We don’t. TruePane Windows & Doors has spent years in Florida’s coastal markets, and our crews know that a custom window on a Conch house off Simonton Street has to satisfy a preservation board, an insurer, and a homeowner who plans to stay put for twenty more years. If you’re pricing impact-rated custom windows, doors, or architectural grilles in Key West, call us at (813) 320-9346 for a free estimate. A live person answers, day or night.
Why TruePane Windows & Doors Is Key West’s Preferred Custom Windows & Doors Company
Key West homeowners tend to ask the same three questions before any window or door job: who’s actually doing the install, will the paperwork hold up, and will you still answer the phone in five years. Fair questions. Our answer starts with the fact that TruePane is led by Dale Kessler, a second-generation glazier who founded the company in 2008 on a rule he keeps on the whiteboard: if the pane is not true, the job is not done. Every install in Key West is done by background-checked, uniformed technicians who measure every opening twice and write both manufacturer warranty layers into the contract before the truck leaves the driveway. That’s The Keystone Standard, and it applies to every custom window, storefront, and curtain wall we touch.
We’re not new to this island’s building stock. Our crews have pulled HARC permits on contributing structures throughout Old Town, worked on elevated wood-frame homes near Truman Annex, and replaced salt-eaten jalousie units in Bahama Village. The 90-Day Done Right Promise covers every job, in writing. If something isn’t right, we make it right. No paperwork fights, no fine print. That promise has kept our Key West customers calling us for years, and it’s why we carry a strong local reputation here rather than relying on a franchise playbook.
Our Custom Windows & Doors Services in Key West
Architectural Grilles & SDLs
In Key West, divided lites aren’t a decorative afterthought. They’re a HARC requirement on most historic structures. We fabricate and install true divided lites (TDLs) and simulated divided lites (SDLs) that match the original mullion width, lite spacing, and setback of Conch-style sash. Whether it’s a 2-over-2 double-hung on a Whitehead Street cottage or a 6-over-6 on a Fleming Street eyebrow house, we spec the pattern that gets through commission review without a second submission. Andersen and Marvin both offer SDL configurations we can quote side by side so you see exactly what matches the street-facing elevation.

Custom Shape Windows
Old Key West homes rarely have rectangular openings. Arched transoms, round porthole windows, and angled eyebrow dormers all show up between Duval Street and Elizabeth Street. Our Custom Windows & Doors team orders radius and polygon units cut to the measured rough opening, engineered to Monroe County wind standards, and finished in the color HARC approves for your block. No shimming a square unit into a round hole and caulking the gaps. That’s how leaks start, and salt air makes them worse fast.

Oversized Glass Panels
Modern additions and second-story decks in Key West often call for large fixed glass panels to take advantage of ocean light. Those panels are heavy, and in a 180 mph wind zone, they need to be laminated impact glass with structural glazing tape or wet-set bedding rated for salt exposure. We handle the engineering, the lifting, and the sealant work. A 6-by-8-foot impact-rated fixed panel in Key West typically runs $2,800 to $4,600 installed, depending on access and frame material. We provide that number in writing before any deposit.

Commercial Storefront Glazing & Curtain Wall Systems
Key West storefronts along Duval, Simonton, and Caroline streets deal with the same salt air and wind code as residential work, plus a steady parade of foot traffic and occasional storm shutters banging against the glass. TruePane installs and services commercial storefront glazing and curtain wall systems for Key West businesses, specifying marine-grade aluminum framing, stainless fasteners, and impact-rated insulated glass. For storefronts in historic districts, we coordinate HARC approvals on signage, mullion width, and color. A commercial storefront reglaze in Key West usually runs $180 to $320 per square foot, with curtain wall systems landing higher depending on the structural load.

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’re authorized installers for more than a dozen manufacturer lines, and in Key West we quote Andersen, ES Windows most often. Andersen’s wood-clad impact units read correctly on HARC applications because the exterior profiles match historic wood sash proportions. ES Windows offers hurricane-rated aluminum and wood hybrids with marine-grade finishes that hold up along the Atlantic side. ViewLux is a good fit when the client wants large-format impact glass with a slim aluminum frame. We keep fast lead times on these lines for Key West customers and register both warranty layers in writing before we leave the driveway.
Common Custom Windows & Doors Problems We See in Key West Homes
- Jalousie units corroded into the jambs. Louvered glass panels were never rated for hurricane loads, and salt air seizes the crank hardware within a few years. Removing them usually means cutting out the entire frame, not a sash swap.
- Fogged insulated glass from salt-pitted seals. Non-marine aluminum frames start pitting in three to five years on this island. Once the seal fails, the argon escapes and the glass fogs. That’s why we spec marine-grade finishes as baseline, not an upsell.
- HARC red tape caught too late. An out-of-town crew installs an impact window with the wrong mullion ratio, and the commission red-tags it. The homeowner pays twice: once for the install, again for the compliant replacement.
- Dade County pine jambs rotted behind standard flashing tape. Regular flashing lets salt-laden moisture wick into the rough opening. Within eight to ten years, the jamb is spongy. We pull the old frame, re-frame with marine-grade lumber, and seal the opening properly.
Pricing for Custom Windows & Doors in Key West, FL
Custom window pricing in Key West runs higher than inland Florida because the materials have to be marine-grade and the permits take longer. Here’s what we see in this market, based on recent jobs: architectural grilles and SDLs add $180 to $400 per opening above the base unit price. Custom shape windows run $1,400 to $3,800 per unit depending on the radius, lite pattern, and HARC finish spec. Oversized laminated impact panels start around $2,800 and climb with square footage and access difficulty. A full jalousie-to-impact-casement conversion on a contributing home typically lands between $4,500 and $8,000 per opening once you factor the HARC permit, the full-frame replacement, and the marine hardware. Call (813) 320-9346 and we’ll give you a written line-item quote. It’s free, and it shows the real number with no change orders.
We Also Serve Cities Near Key West
Our crews work the full Lower Keys stretch, from Key West up through Big Pine Key, Marathon, Key Colony Beach, and Tavernier. The same marine-grade spec and HARC-aware detailing apply across the island chain. If you’re on Stock Island or up toward Sugarloaf, you’re still in our service area. Call (813) 320-9346 and we’ll schedule the free estimate around your schedule.
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 - Custom Windows & Doors in Key West
Yes, HARC approves argon-filled insulated impact glass on most contributing structures as long as the exterior mullion width, lite pattern, and frame profile read as period-correct. The commission is reviewing the street-facing appearance, not the gas fill. We include the HARC submittal packet with matching photographs and a cut sheet on every contributing home. Call (813) 320-9346 and we’ll handle the first submission so you don’t pay for a do-over.
Standard zinc hardware starts showing rust bloom within two to three years in Key West’s salt spray. Marine-grade 316 stainless holds up for decades. The hardware upgrade adds $60 to $120 per window, and skipping it means replacing hinges and handles long before the glass shows wear. We quote it as standard on every Key West job.
Yes, but only if the replacement casement matches the original louvered opening’s proportions and the commission signs off on the window type change. HARC has approved casement conversions on contributing homes when the lite pattern and frame color match the block’s historic character. We pull the HARC permit alongside the building permit every time, so the commission sees the full conversion plan before a single piece of glass arrives. Call (813) 320-9346 to get a HARC-ready quote for your specific opening.
Salt-spray pitting corrodes the aluminum frame seal within a few years, letting humid island air into the insulated glass unit. Once the desiccant inside the spacer is saturated, the unit fogs permanently. Inland units can take fifteen years to fail. In Key West, budget aluminum frames can fog in under five. That’s why we use marine-grade finishes and stainless steel hardware from the start, and why both manufacturer warranty layers get registered in writing before we leave the driveway.
No sacrifice. The impact-rated laminated glass itself is identical to what goes in any coastal Florida home. HARC only controls the appearance: mullion width, lite configuration, frame profile, and color. A HARC-approved impact unit with a 2-over-2 SDL pattern and marine-grade aluminum frame still carries the Miami-Dade or Florida Building Code product approval for 180+ mph design loads. You get both the storm rating and the historic look. Call (813) 320-9346 for a free estimate, and we’ll show you the exact unit and its product approval number in writing.
It’s the situation where a homeowner pulls a building permit for impact windows, installs them, and then HARC issues a violation because the replacement units don’t match the contributing structure’s historic appearance. The homeowner is then on the hook to pull the new windows and replace them with HARC-approved units. The fix is pulling the HARC certificate of appropriateness at the same time as the building permit. That’s our standard practice on every contributing home in Key West. Call (813) 320-9346 and we’ll walk you through the timeline for your property.
Written by Dale Kessler, Owner at TruePane Windows & Doors.
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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