CGI Windows & Doors in Marathon, FL

CGI Windows & Doors in Marathon, FL | TruePane Windows & Doors

We provide independent CGI window and door service across Marathon, from canal-front homes off Sombrero Beach Road to the older ranch-style CBS houses along US-1. The one thing that sets our CGI work apart here is simple: we know which parts fail first in this salt-air, high-wind environment, and we spec marine-grade stainless and neoprene on every job whether the manufacturer’s default hardware would pass code or not. If you need a CGI window repaired, serviced, or replaced, call (813) 320-9346 for a free estimate. We’re an independent CGI service provider, not a manufacturer affiliate, and we’re not the cheapest bid in town. We’re the last call you should need to make.

Call (813) 320-9346

Why Marathon Residents Choose Us for CGI Service

We’ve been working on CGI windows and doors long enough to know their impact-rated aluminum lines the way a mechanic knows a particular engine. Our techs have cut out and rebuilt hundreds of original jalousie openings across Marathon’s canal-front and US-1 homes under Monroe County’s strict Miami-Dade NOA requirement. That’s not a bullet point on a brochure; it’s the actual work, done in actual houses, where a standard window is not a legal option. Dale Kessler, our owner, grew up around Tampa Bay and learned the glazing trade on a shop floor, not in a classroom. He runs TruePane the way his father ran a small building-maintenance outfit: a callback is a character flaw, not just an inconvenience. We answer the phone with a live person 24 hours a day, seven days a week. We show up when we say we will. And every job carries the 90-Day Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before the truck leaves your driveway.

Common CGI Windows & Doors Problems We Solve in Marathon

Here’s what we see most often on CGI equipment in this stretch of the Keys. These aren’t generic complaints; they’re tied directly to what Marathon’s geography and climate do to aluminum and seals.

• Salt-air pitting and white oxidation on bottom rails. On canal-front homes, salt spray comes from below as well as from the sides. CGI Sparta Impact frames develop chalky white corrosion along the bottom rail within five to seven years, which breaks the sealant bond and causes track binding. We’ve pulled more than a few of these apart and rebuilt them with marine-grade hardware.
• Clogged weep holes on horizontal rollers. The 8900 Series horizontal rollers collect salt crust and micro-debris in the weep holes. Water sits in the sill channel, then corrosion works its way into the track and rollers. You’ll notice the door gets harder to slide even though the rollers look fine.
• Single-hung balance failures from salt and humidity. Older CGI 8600 Series single-hung windows lose balance tension as humidity cycles through the spring mechanism. The sash drops or won’t stay open. On Marathon’s canal-side older homes, this failure shows up sooner than the manufacturer’s average.
• Door threshold corrosion at the neoprene seal interface. Bayfront exposures get wind-driven rain, and CGI swing-door thresholds corrode right where the neoprene seal meets the aluminum. Once that weather barrier breaks, you get water intrusion during the next tropical system.
• Jalousie-era openings that were never properly converted. Plenty of Marathon homes still have original jalousie windows or had a partial conversion done years ago that wouldn’t pass inspection today. We cut those out and rebuild the opening to HVHZ standards with CGI impact-rated units.

CGI Service in Marathon: What Local Conditions Mean for Your Equipment

Marathon sits entirely inside Florida’s High-Velocity Hurricane Zone, which means every single replacement window and door, even a like-for-like swap on a 1970s concrete-block home, must carry a Miami-Dade Notice of Acceptance or an equivalent HVHZ approval. You cannot legally install a standard non-impact window here, even on an interior bedroom. That restriction does not apply in mainland Monroe County communities like Key Largo. Now layer in the geography: Marathon is a narrow island strip roughly a mile wide at its widest, flanked by the Atlantic on one side and Florida Bay on the other. Every building elevation gets salt-air exposure simultaneously. Corrosion timelines for aluminum frames, hardware, and weatherstripping compress dramatically compared to even mainland coastal Florida cities. What that means for CGI owners is straightforward: the frame may look fine from six feet away, but the bottom rail corrosion on a canal-front Sparta Impact window is already working against the impact rating. We spec 316 marine-grade stainless fasteners and neoprene seals on every Marathon job because standard aluminum hardware that would pass code in Orlando rots out here in a fraction of the time. That’s the difference between a repair that lasts and one that buys you eighteen months.

CGI Models & Products We Service in Marathon

We service the CGI product lines you’re most likely to have on a Marathon home: the Sparta Impact Series, the Estate Collection Impact Windows, the 8900 Series Horizontal Roller, and the 8600 Series Single Hung. When a part is structural or part of the impact rating, sash locks, keeper clips, glass assemblies, we use OEM CGI replacement parts. No exceptions. When the part is a fastener or a seal, we upgrade to 316 marine-grade stainless and neoprene as standard practice, because the manufacturer’s default hardware is not built for continuous salt-spray exposure from two directions. For older CGI units that are pre-HVHZ or showing frame corrosion, we will quote full replacement over repair. Patching corrosion in a salt environment rarely buys more than a year or two, and we’d rather tell you that upfront than sell you a temporary fix. Our CGI sales & service team can walk you through the side-by-side model options on paper before you commit.

CGI Service Pricing in Marathon

FAQs - CGI Windows & Doors in Marathon

Service Areas Near Marathon

We provide CGI service throughout Marathon and into the surrounding Keys communities, including Marathon service area coverage for the full island and nearby neighborhoods. If you’re in CGI service in Margate territory or closer to CGI service in Medley, our crews run the same mar grade hardware and the same 90-Day Done Right Promise on every job. Same standards, same warranties, same people on the phone when you call.

Book Your CGI Service in Marathon Today

If your CGI windows or doors need service in Marathon-or you’re looking for a Cgi service in Key West-call (813) 320-9346. We’ll send a background-checked, uniformed technician who measures every opening twice and puts the quote in writing before any work starts. If it needs to be in writing to be true, we will put it in writing.

Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Marathon since 2008.