Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindows & Doors Services in Marathon, FL
If you live in Marathon, you already know the rule whether you’ve heard it spoken or not: every window and door you put in your home has to answer to salt air, hurricane code, and the insurance inspector, usually all in the same week. We’ve been setting glass in the Keys long enough to know the difference between a spec sheet that passes and a job that holds. When you call TruePane Windows & Doors at (813) 320-9346, you get our people on the line, not a phone tree, and we’ll give you a straight answer about what your house actually needs.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Marathon Homeowners Choose TruePane Windows & Doors
Dale Kessler founded this company because he kept seeing the same three failures walk through his shop: windows installed out of true, warranties voided by sloppy paperwork, and homeowners left chasing a contractor who’d stopped answering. We operate on a different rule, the one still written on Dale’s whiteboard: if the pane is not true, the job is not done. That’s the standard on the first visit and the baseline for every callback.
Homeowners from Key Vaca to Sombrero Beach and over to the homes along Sombrero Boulevard call us because we do the small things that keep a window square for twenty years. We measure every opening twice. We quote manufacturer lines side by side on paper so you see exactly what you’re buying. We register both warranty layers in writing before the truck leaves your driveway. That’s The Keystone Standard, and it’s on every job we take in Marathon.
Our technicians are background-checked and uniformed, working in your home the way they’d work in their own mother’s. We’re an authorized installer for more than a dozen manufacturer lines, including Andersen, PGT, and CGI. We stand behind the work with a 90-Day Done Right Promise, and when you call, a live person answers, 24 hours a day, 7 days a week. No voicemail tree, no callback form, no regional call center. Dispatch and scheduling are coordinated from our Miami (South FL) office, with crews serving Marathon locally.
Windows & Doors Services We Offer in Marathon
Window Installation
New windows in Marathon start with the right product for salt exposure and HVHZ code, then get set square and sealed tight so the first tropical system doesn’t find a gap. We spec marine-grade stainless fasteners and neoprene seals where standard hardware would fail early, and we register every warranty layer in writing.
Learn more about our Window Installation in Marathon.
Door Installation
A door that binds in July or lets salt air chew through the threshold in two seasons isn’t a door worth keeping. We install entry doors, French doors, and sliders with hardware that holds up to Marathon’s corrosion schedule, and we make sure the threshold drains the way it should.
Learn more about our Door Installation in Marathon.
Window Replacement
Those jalousie windows that came with the house move air, and that’s about all they do. They don’t meet current code, they don’t stop wind-driven rain, and they don’t satisfy an insurance inspector. We replace them with impact-rated or energy-efficient units that carry the Miami-Dade NOA your home needs.
Learn more about our Window Replacement in Marathon.
Impact Windows & Doors
In Marathon, impact glass isn’t an upgrade. It’s the floor. We install Impact Windows & Doors in Marathon that meet Monroe County’s HVHZ requirements, and we register both manufacturer warranty layers in writing before the truck leaves.
We’re an authorized installer for PGT, CGI, Andersen, and other lines tested for the High-Velocity Hurricane Zone, and we quote them side by side so you can compare real numbers.
Energy-Efficient Windows
Salt air isn’t the only thing pressing on your windows year-round. The trade winds and UV exposure heat up rooms fast, and Energy-Efficient Windows in Marathon with Low-E coating make a difference you’ll see on your cooling bill. We’ll help you pick the right glazing for each elevation of your house, not just a one-size answer.
Sliding & Patio Doors
Sliding & Patio Doors in Marathon on canal-front and bayfront homes take abuse from below as well as from the sides. We install track systems that drain, hardware that doesn’t bind, and thresholds that don’t turn into a salt crust, and we’ll set them so they glide without lifting.
Glass Railing Systems
If your elevated home has a deck or balcony, a Glass Railing Systems in Marathon keeps the view open and meets the structural realities of a piling house. We install and service the frames and glass, using materials that stand up to the same salt and wind everything else in Marathon does.
Custom Windows & Doors
Some openings were never built to a standard size, especially in older CBS homes along US-1. We can order and install custom units for odd framing, arched tops, or specific design requirements, and we’ll do it without making you wait through three rounds of promises.
Neighborhoods We Serve in Marathon
We work across the island and up and down US-1, from the canal-front homes off Sombrero Boulevard to the elevated CBS houses in the older sections of Key Vaca. Our typical response time for a Marathon service call is same-day or next-day, and the estimate visit is scheduled at a time you pick.
- Key Vaca
- Sombrero Beach
- Sombrero Boulevard area
- Canal-front and bayfront homes near Coco Plum
- Residential streets off US-1 and 1st Street
Why Marathon’s Climate & Housing Affect Windows & Doors
Marathon is a narrow island strip, roughly a mile wide at its widest, with the Atlantic Ocean on one side and Florida Bay on the other. Every building gets salt air from every direction, every day. That means aluminum frames, hardware, and weatherstripping corrode on a timeline that mainland coastal Florida doesn’t recognize. We routinely replace window and door hardware that looked fine on paper but failed in three years because the manufacturer’s default fasteners weren’t marine-grade. So we don’t install default anything on this island.
The housing stock tells its own story. Marathon has a mix of elevated CBS homes on pilings, built to answer FEMA flood zones, and older pre-code ranch-style CBS houses along US-1, many of them still carrying their original jalousie windows. Hurricane Irma’s near-direct hit in September 2017 destroyed or badly damaged a large share of the housing stock, and what got rebuilt went back under strict HVHZ standards. Homes that weren’t rebuilt often still carry windows that don’t meet the current code and won’t pass an insurance review. We see that combination all the time: a solid CBS shell, a strong roof, and window sashes that were never designed to do anything except let air through.
Canal-front and bayfront homes, which account for a large share of Marathon’s residential properties, face salt spray from below as well as from the sides. Window sill pans, door thresholds, and frame weep holes clog and corrode faster than any spec sheet anticipates. We specify marine-grade stainless fasteners and neoprene seals on these homes even when the manufacturer’s default hardware would technically pass code, because passing code and staying square for twenty years are not the same thing.
Pricing for Windows & Doors in Marathon
Window replacement in Marathon generally runs between $700 and $1,800 per window for standard sizes with impact-rated glass, depending on the manufacturer line and the condition of the existing frame. A full house of openings, including sliders and an entry door, typically lands between $12,000 and $38,000. Door-only replacements for exterior entry doors usually run between $1,500 and $4,500 installed.
These are honest ranges, not teaser numbers. Some Marathon homes need full frame rebuilds when the original framing has salt rot, and that work gets quoted in writing before anything is ordered. Seniors and veterans get a permanent 5% discount, and there’s no charge for a detailed written estimate. Call (813) 320-9346 and we’ll put exact numbers on paper for your house.
Service Area - Cities Near Marathon
We also serve nearby communities throughout the Middle Keys, including Key Colony Beach, Big Pine Key, Tavernier, and Key Largo. If you’re on one of the neighboring keys and looking for the same level of care, we’ll be there when we say.
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 About Windows & Doors in Marathon
Yes. Marathon sits inside Florida’s High-Velocity Hurricane Zone, and Monroe County code requires every replacement window and door to carry a Miami-Dade Notice of Acceptance or equivalent HVHZ approval. Standard windows are not a legal option here, and many older jalousie or single-pane aluminum windows are non-compliant and can cause problems with your insurance coverage. Call (813) 320-9346 for a free assessment of your existing openings.
Most impact-rated window replacements in Marathon run between $700 and $1,800 per window, with the final number depending on manufacturer line, size, and what condition the existing framing is in. We give you a written line-item quote before anything is ordered, and seniors and veterans receive a permanent 5% discount.
No. We quote work upfront and we stand behind the number, provided we’re not asked to change the scope. If we open a wall and find hidden damage, we stop and walk you through it before any additional work proceeds. You won’t see surprise line items on the bill. That’s what we mean by a square deal.
Yes. Monroe County requires permits for window and door work, particularly for impact glass and structural openings, and we handle the permit process, the inspections, and the paperwork as part of the job. We won’t hand you a permit form and wish you luck. We file it and we close it.
Most standard window and door replacements are completed in a single visit, with the majority of jobs finished in one to two days depending on the number of openings. Custom orders can take longer because of manufacturing lead times, but we’ll tell you the schedule in writing before we order anything. Call (813) 320-9346 to schedule a free estimate, and we’ll give you a clear timeline for your specific project.
We register both manufacturer warranty layers in writing before the truck leaves your driveway, and we back every job with a 90-Day Done Right Promise. If something isn’t right, we make it right, no paperwork fights and no arguing. You also get a live person on the phone 24/7, and a company that has been serving communities since 2008 through a heritage of craft, not a franchise playbook.
If you’re ready to replace the jalousies, set square the front door, or finally get impact glass that satisfies the inspector and keeps the salt out, call us at (813) 320-9346 for a free estimate. We’ll answer in person, send a background-checked technician who measures twice, and give you a written quote with the warranty terms spelled out in plain English. That’s the deal we make in Marathon, and we stand behind it.
Written by Dale Kessler, Owner at TruePane Windows & Doors, providing windows and doors services in Marathon, FL and throughout the Middle 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.
Other TruePane Windows & Doors Services
What Neighbors Say About TruePane Windows & Doors
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Marathon Customers Say
"French doors to the patio, custom size because this house was built in 1961 and nothing is standard. Measured twice, three weeks to fabricate like they warned, and the install day they laid runners over my floors without being asked."
- Marie S."A casement crank had stripped and the sash was swollen shut. The technician, Ray, fixed the crank on the spot and only then talked about replacement for the three windows that were genuinely done. That is why the whole street uses them now."
- Eleanor G."Eleven windows replaced in two days. The crew chief, Marcus, showed me the level on every single frame before they caulked it. My wife noticed the street noise was gone before I did."
- Ronald P.