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AfterCGI Windows & Doors in Marathon, FL | TruePane Windows & Doors
We provide independent CGI windows and doors service across Marathon, FL. That means repair, replacement, hardware upgrades, and full-frame installations on CGI Estate, Classic, and Sentinel lines, without ever claiming to be factory-authorized. What sets our CGI work apart here is simple: we understand Marathon’s High Velocity Hurricane Zone (HVHZ) code requirements, the salt-air corrosion timeline, and the concrete-block realities of older Keys homes. Call (754) 238-2201 for a free estimate.
If you own a CGI window or door in Marathon, you already have one of the better impact-rated product lines made for South Florida. Our job is to keep it working the way it was designed to, using OEM CGI parts where they matter and marine-grade upgrades where Marathon’s conditions demand them. We’ve been doing CGI sales & service long enough to know what holds up on a barrier island and what doesn’t.
Why Marathon Residents Choose Us for CGI Service
We’re not a manufacturer call center and we’re not a franchise operation. TruePane Windows & Doors was founded in 2008 by Dale Kessler, a second-generation glazier who trained at Miami Dade College’s vocational program and has been measuring, sourcing, and setting windows and doors in South Florida for going on three decades, including Cgi service in Key West. Dale still measures every job himself. “Measure it right the first time, or plan on coming back.”
That matters in Marathon because the margins here are tighter than anywhere else in the state. A rough opening on a 1960s concrete-block home was framed for jalousie windows, not modern impact units. A frame on a canal-front lot faces salt spray from both Atlantic and Florida Bay elevations. When our crew shows up, they know what they’re looking at before they touch the first screw. Background-checked, uniformed technicians measure every opening twice, write side-by-side quotes on paper, and register both warranty layers before the truck leaves your driveway.
We also answer the phone. A live person picks up 24 hours a day, 7 days a week. Not a voicemail tree, not a callback form. If your CGI slider binds after a storm, you’ll talk to a human who knows what a roller track is.
Common CGI Windows & Doors Problems We Solve in Marathon
- Corroded aluminum frames and hinge pins. Marathon sits on a narrow coral-limestone island with open water on both sides. Every elevation takes direct salt air, 360 degrees, all year. CGI frames are built tough, but after 10-15 years of omnidirectional salt spray, awning and casement hinge pins seize and frames pit. We replace hinge hardware with marine-grade stainless and assess whether the frame itself has life left.
- Failed adhesive glazing tapes on impact laminated glass. Post-Irma elevated rebuilds sit high off the ground with glass facing full sun and 85-95% humidity. The adhesive tapes securing impact laminate edges break down over time, and you get fogging or visible delamination at the edges. We re-glaze with materials rated for the HVHZ exposure Marathon dishes out.
- Roller and track failures on CGI sliding doors. Coral sand and wind-driven salt deposits pack into the bottom track of sliding glass doors. The rollers grind, the track corrodes, and the door starts to bind or jump. On a canal home, this happens faster because runoff carries salt across the track line. We pull the panel, clean or replace the track, and install stainless rollers that don’t seize up.
- Worn weatherstripping on casement and awning units. Constant wind pressure on narrow barrier-island lots compresses weatherstripping far sooner than the manufacturer’s typical service interval. You’ll feel the draft or see water staining at the sash edges. We replace with compression-rated weatherstripping that stands up to Marathon’s wind loads.
- Jalousie-era rough openings that don’t match modern CGI frames. Older CBS homes were built around slim jalousie windows. When you swap in an HVHZ-rated CGI impact unit, the opening is almost always the wrong size. This isn’t a product failure, but it’s the most common reason a Marathon CGI replacement turns into a concrete-cutting job.
CGI Service in Marathon: What Local Conditions Mean for Your Equipment
Marathon is one of the few Florida cities where a permitted CGI replacement on a 1950s-70s jalousie-era CBS home almost always requires cutting concrete or block infill around the rough opening. Monroe County inspectors specifically check that infill’s CMU bonding and header fastening during close-out, a step mainland contractors never see. Here’s what that means for you as a CGI owner: if your window or door was installed by someone who didn’t know Marathon’s housing stock, the frame may be anchored into infill that was never properly bonded. That’s not a CGI problem, it’s an installation problem, and it’s exactly what inspectors here are trained to catch. Our crews have done enough of these to know what the inspector wants to see before we schedule the close-out inspection.
We saw this play out on a 1960s concrete-block house on Sombrero Beach Road. The call was for a CGI Estate sliding glass door binding and leaking on the north elevation. We pulled the panel and found the original aluminum track eaten through by salt-laden runoff from the Florida Bay side. We replaced it with a marine-grade stainless roller track, then cut back the jalousie-era rough opening to seat the new impact frame with proper concrete anchor straps. The inspector passed the block infill and door on the first visit.
CGI Models & Products We Service in Marathon
We work on the full CGI product range that builders and homeowners have installed across Marathon. That includes the CGI Estate Series, Classic Series, Sentinel Series, and CGI Estate Impact Sliding Glass Doors. We stock common roller assemblies, hinge hardware, weatherstripping profiles, and marine-grade fasteners locally so a repair doesn’t wait on a shipping lead time from the mainland.
On parts, our stance is straightforward. We use OEM CGI parts when the frame is still carrying the manufacturer’s structural role, and we insist on factory hardware for impact-rated units. But Marathon’s salt air is harder on fasteners and weatherstripping than any test lab simulates, so we routinely install marine-grade third-party fasteners and upgraded weatherstripping where OEM components fail prematurely. We won’t patch a heavily corroded CGI frame or one with active water intrusion. We’ll tell you straight when full replacement costs less than a repair that won’t survive the next storm season.
CGI Service Pricing in Marathon
CGI service pricing in Marathon depends on scope: a basic hardware or weatherstripping repair typically runs $120-$280; a slider track and roller rebuild runs $300-$650; re-glazing or seal replacement on impact laminated glass runs $400-$900 per unit; and a full-frame CGI replacement with concrete cutting or block infill work typically starts around $1,200 and ranges up to $3,800 depending on opening size and infill complexity. These are rough ranges, not quotes.
Your free estimate includes a written line-item breakdown, an honest assessment of whether repair or replacement makes more sense, and our Done Right Promise on every job. Backed by The Keystone Standard: both warranty layers registered in writing, durations stated, before the truck leaves the driveway. Call (754) 238-2201 for exact numbers on your specific opening.
Serving Marathon, FL - Our Local Coverage Area
We’re based in the Marathon area and know this community well, and we also offer Key Colony Beach Cgi service. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - CGI Windows & Doors in Marathon
Yes. Marathon sits squarely in Florida’s High Velocity Hurricane Zone, which is the most stringent wind-load designation in the U.S. building code. Every window and door replacement, including CGI products, must carry a Miami-Dade Notice of Acceptance (NOA) for HVHZ compliance, just as with our Coral Gables Cgi service. This is a more restrictive certification tier than standard “impact-rated” products legal elsewhere in Florida. We verify NOA numbers on every job and include the documentation with your permit package. Call (754) 238-2201 if you’re unsure whether your existing units meet current code.
Because those 1950s-70s concrete-block homes were framed around the slim profile of original jalousie windows. A modern CGI impact unit is deeper and wider than the old jalousie frame, so the rough opening has to be enlarged with concrete cutting or block infill to seat the new frame properly. Monroe County inspectors specifically check the infill’s CMU bonding and header fastening during permit close-out. It’s routine work for us in Marathon, but it’s virtually unheard of on the mainland.
The Atlantic side delivers wind-driven salt spray in short, hard bursts during storms and high-wind days. The Florida Bay side is different: shallow, warm water evaporates fast, and the resulting salt-laden humidity sits on frames and tracks for days in still conditions. Bay-side hardware corrodes slower per hour of exposure but accumulates damage year-round because it never gets a break. Atlantic-side hardware gets pummeled during storm season but has a drying cycle between events. We see different failure patterns on each side and stock parts for both.
Sometimes, but not always. The wind zone and product approval are the same, but the installation method changes. Elevated modular homes have different anchoring requirements, flashing details, and structural tie-in points than ground-level concrete block, similar to what we see providing Cgi in Homestead. A CGI unit rated for HVHZ may work on both, but the frame anchoring and sealant system have to match the home’s construction type. We assess this during the free estimate and spec the right installation for your structure.
Depends on how far the corrosion has gone. If the frame is pitted but structurally sound and the opening is square, an insert replacement is faster and costs less. If the frame is deeply corroded, has active water intrusion, or the rough opening has jalousie-era sizing issues, a full frame replacement is the only repair that will pass Monroe County inspection and hold through the next storm season. On canal homes, we lean toward full frame when the frame sits within splash distance of the waterline. Call (754) 238-2201 and we’ll give you a straight answer on which route your home needs.
Service Areas Near Marathon
TruePane serves Marathon and the broader Florida Keys. While our primary CGI service work concentrates in Marathon and its immediate neighborhoods, we also take jobs in Marathon service area communities throughout the Middle Keys, plus select work in CGI service in Margate and CGI service in Medley on Florida’s mainland east coast. We keep our route scheduling simple: Marathon first, mainland jobs batched weekly.
Book Your CGI Service in Marathon Today
If your CGI window or door is fogging, binding, corroding, or leaking in Marathon, don’t wait for the next storm to find the weak point. Call (754) 238-2201 for a free estimate and a straight answer on repair versus replacement. We’ll be there when we say. Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Marathon since 2008.
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.