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AfterFast, Reliable Door Installation Across Marathon
A door installation in Marathon, FL has to meet a higher legal bar than anywhere else in the United States: the Florida High Velocity Hurricane Zone, or HVHZ. That means every door we set on Key Vaca carries a Miami-Dade Notice of Acceptance (NOA), not just an “impact-rated” sticker. If you’re replacing an entry door, French doors, or a storm door after Irma or simply upgrading a 1960s jalousie opening, call (754) 238-2201. We’ll walk you through what Monroe County requires and quote the job in writing, on paper, with both warranty layers registered before our truck leaves your driveway.
Why TruePane Windows & Doors Is Marathon’s Preferred Door Installation Company
Dale Kessler founded TruePane in 2008 on a rule that still sits on the whiteboard: if the pane is not true, the job is not done. That rule governs every door we hang in Marathon, from a simple swing door on a CBS rancher off Overseas Highway to a full set of French doors on an elevated post-Irma rebuild near Sombrero Beach. We’re not a franchise. We’re a second-generation glazier’s crew, background-checked, uniformed, and trained to measure every opening twice.
Marathon homeowners tend to know their houses well. Many have lived here twenty, thirty years. They remember what a salt-corroded jamb looks like and they know when a sub sent by a mainland company doesn’t understand HVHZ anchoring. We work in Marathon regularly, coordinate scheduling from our South FL office, and have seen enough Key Vaca rough openings to know what’s behind the drywall before we cut into it. Our reviews from Marathon customers mention two things most often: the tech showed up when promised, and the permit closed without a fight.
We also answer the phone. A live person, 24 hours a day, seven days a week. Not a voicemail tree. If you have a question about a door quote in Marathon, someone picks up.
Our Door Installation Services in Marathon
Entry & Swing Doors
Most Marathon entry doors fail at the frame before the slab gives out. Salt air off the Atlantic side and Florida Bay attacks zinc fasteners within two or three years. We replace the entire unit, not just the slab, with marine-grade hardware and a fusion-welded frame flashed with high-temperature tape. Every entry door we set in Marathon carries a Miami-Dade NOA, so the Monroe County inspector signs off the first time.
Storm Doors
A storm door in Marathon does double duty. It shields your primary entry door from direct wind-driven rain and gives you cross-breeze in the winter months when a solid impact door stays shut. We quote storm doors with the same HVHZ anchoring as primary entries. The cheap storm door from a big-box store will not pass a permit inspection here, and we’ll tell you that before you spend the money.
Double & French Doors
French doors on a Marathon CBS or elevated wood-frame home need more than a pretty set of hinges. The opening has to be square, the anchoring has to meet HVHZ uplift loads, and the sill flashing has to keep wind-driven salt spray from wicking into the block. We install double and French doors with fully registered manufacturer warranties and a Done Right Promise in writing.
Bifold & Folding Doors
Bifold doors are popular on Marathon rebuilds where a living room opens to a screened lanai. The track, rollers, and locking pins have to stand up to salt and humidity. We prefer marine-grade components and set the door so panels align flush when closed. If the door binds in July, we come back. The Done Right Promise means we make it right, no arguing.
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 Marathon
We’re authorized installers for more than a dozen manufacturer lines, including PGT, CGI, and CWS. Those three carry Miami-Dade NOAs on multiple product lines, which is what Marathon requires. We quote brands side by side on paper so you can see the structural differences, the NOA number, and the warranty duration before you commit. We don’t push one brand over another. We push the one that matches your opening, your exposure, and your insurance documentation needs.
Common Door Installation Problems We See in Marathon Homes
- Salt-corroded fasteners and hinges. Marathon sits on a narrow coral-limestone island with ocean on one side and bay on the other. There’s no inland buffer, so standard zinc-plated hardware seizes and rusts within a few seasons. We use marine-grade stainless in every install.
- Rough openings sized for jalousie windows. Those 1950s-to-1970s CBS homes off Marathon were framed around slim louvered jalousies. When you swap in a modern HVHZ impact door, the rough opening is almost always the wrong height or width, and Monroe County inspectors check that opening during close-out.
- Skipped flashing tape at sill and jambs. Wind-driven rain combined with 85-95% humidity and salt spray rots the rough opening fast. A door that looks fine from the outside can be wicking moisture into the block behind the casing. We flash every opening before the door goes in.
- Impact-rated doors without a Miami-Dade NOA. This is the most expensive mistake we see in Marathon. A door can say “impact rated” and still fail Monroe County’s HVHZ permit inspection because it lacks a Miami-Dade Notice of Acceptance. The permit won’t close, the insurance company won’t recognize the install, and you pay twice.
Pricing for Door Installation in Marathon, FL
- Entry & swing door with Miami-Dade NOA: $2,400-$4,800 installed, depending on slab size and whether the rough opening needs block infill or concrete cutting.
- Storm door with NOA-rated anchoring: $900-$1,800 installed.
- Double or French doors, HVHZ compliant: $4,200-$8,500 installed, with wider variance for elevated rebuilds requiring custom anchoring.
- Bifold or folding door system: $5,500-$11,000 installed, depending on panel count and track hardware.
The factors that move the number: how much concrete work the opening needs, whether the home is pre-Irma CBS or post-Irma elevated wood-frame, and which NOA-rated product line you select. Every estimate is free, written, and line-itemed. The price we quote is the price on the bill. Call (754) 238-2201 to schedule yours.
We Also Serve Cities Near Marathon
Our Door Installation crews work up and down the Keys from Marathon to Key Colony Beach, Big Pine Key, Tavernier, and Key Largo. If you’re on a neighboring island and need the same HVHZ-compliant work, we’ll send someone who knows what Monroe County will ask for at inspection.
Serving Marathon, FL - Our Local Coverage Area
We’re based in the Marathon 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 - Door Installation in Marathon
Yes, it needs a Miami-Dade Notice of Acceptance. Marathon is inside the HVHZ, and Monroe County will not close a permit on a door that lacks an NOA, even if the door says “impact rated.” An NOA is a specific certification tied to a product line and tested to Miami-Dade’s wind-load protocol. If a quote doesn’t list an NOA number, the door won’t pass inspection. Call (754) 238-2201 and we’ll show you the NOA on paper before you sign.
Because most surviving pre-Irma homes on Key Vaca are CBS block built in the 1950s through 1970s, framed for slim jalousie windows, not modern impact doors. The rough openings are the wrong dimensions, so our crew has to cut the block larger or pour infill to fit the new door properly. Monroe County inspectors check this during close-out, so it’s not a step you can skip. We include the concrete scope in every written estimate so it’s never a surprise on the bill.
At least once a year, ideally before hurricane season starts in June. The omnidirectional salt air on a narrow island like Marathon corrodes hinges, tracks, and fasteners faster than mainland coastal cities. We offer a maintenance check that covers hardware lubrication, frame inspection, and a written condition report. It’s cheap insurance against a door that binds or a latch that fails when you need it most.
It can, and documentation is the deciding factor. If your door has a Miami-Dade NOA and the install is permitted, inspected, and closed, you have a defensible case with an adjuster. If the door lacks the NOA or the permit was never pulled, a claim can be denied or reduced. We register both manufacturer warranty layers in writing and leave you with the permit close-out, the NOA number, and the product spec sheet. That paper trail matters when the adjuster asks.
A compliant quote includes the Miami-Dade NOA-rated door, concrete cutting or block infill if the rough opening needs it, marine-grade hardware, flashing tape at sill and jambs, the Monroe County permit, and the inspection close-out. A cheap quote from a mainland handyman usually leaves out the permit, the NOA, and the flashing. It looks less expensive on paper and costs more when the inspection fails or the insurance claim stalls. Call (754) 238-2201 for a free, written, line-item estimate that covers everything Monroe County will check.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Marathon and the Middle Keys with HVHZ-compliant door installation.
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.