CGI Window Replacement Nationwide | Winslow Windows & Doors

CGI Window Replacement: The South Miami Owner’s Guide

If you have a CGI window that needs replacement in South Miami, we stock and install CGI-compatible window replacements, with most single-window swaps running between $900 and $2,800 installed depending on size, series, and glass package. We can typically match your existing CGI model the same week, and in many cases the same day if the part is already on our truck. The way most South Miami homeowners discover they need a CGI window replacement is simple: the window won’t seal, the frame shows corrosion, or the glass has crazed after a storm, and suddenly the window that was supposed to protect the house isn’t doing its job anymore.

Call (850) 930-1813

CGI makes a genuinely tough impact window. But South Miami’s salt air, afternoon downpours, and hurricane-season wind loads work on everything eventually. When a single CGI unit fails, you don’t need to replace every window in the house, and you don’t need to settle for a mismatched replacement that changes the look of your home. Ed Winslow grew up in the Sunset neighborhood of South Miami, and he’s replaced enough CGI windows to know exactly what to look for before the first screw comes out. Winslow Windows & Doors is an independent service provider, not affiliated with CGI. That means we’re free to give you an honest recommendation on whether to repair, replace, or upgrade the failed unit.

Which CGI Models This Applies To

CGI’s residential impact window line includes several series you’ll find throughout South Miami, and each has its own replacement quirks. The most common models we see are from the Estate Collection (including the Estate 110, 120, and 200 series), the Sentinel series, and the Custom Impact line for oversized or unusual openings. CGI also produces the Targa series, which is a popular mid-range impact window in newer South Miami construction. Each series uses different frame depths, glazing beads, and corner joinery, so matching the window to the opening is only half the job. The other half is matching the replacement to the failed unit.

Here’s the compatibility gotcha most people don’t learn until it’s too late: CGI’s laminated glass thickness varies by series and by the original wind-load rating on the building permit. A window rated for a high-velocity wind zone may carry a thicker interlayer than a standard impact window, and an incorrectly matched replacement can pass a visual check while failing the structural one. If your window label is still legible, look for the etching in the corner of the glass: it will show the CGI logo, the glass standard (usually ASTM E1996), and a design pressure number like DP50 or DP65. If the label is gone, we measure the glass thickness and frame profile to identify the series.

CGI’s aluminum frames hold up better than most in South Miami’s salt air, but the glazing bead and weather seal, the parts that actually keep water out, are the same type of replaceable wear items used across the PGT, CWS, and ES Windows lines we also service. When we can’t source a discontinued CGI gasket, we substitute a marine-grade equivalent rather than calling the window unrepairable. But when the frame itself has deep pitting or the glass seal has failed, replacement of the full unit is the only honest fix.

Signs Your CGI Window Replacement Is Failing

Most South Miami homeowners notice the problem long before they can name it. Here’s what we see in the field, in order of frequency:

• Condensation or haze between the glass panes. This means the desiccant inside the insulated glass unit is saturated and the seal is gone. Once moisture is inside the unit, the window’s energy rating is shot and the glass may eventually cloud permanently. South Miami humidity accelerates this once the seal is breached.
• Visible corrosion or pitting on the aluminum frame. Salt air from Biscayne Bay doesn’t discriminate. CGI’s anodized finish resists it well, but if the factory coating gets scratched during installation or by yard equipment, corrosion starts. If pitting penetrates the frame, the structural integrity is compromised and a replacement is the right call.
• Cracks or crazing in the glass, even small ones. Impact glass is built to take a hit without shattering, but repeated thermal cycling plus small impacts can cause micro-cracks near the edges. A hairline crack today is a full break when the next storm loads the glass unevenly.
• Water staining on the interior wall or sill after rain. This is almost always either a failed glazing seal or an improperly flashed opening from the original installation. The window itself may be fine, but if water is getting around the frame rather than through it, the whole unit needs to come out and be reset.
• The sash or panel has become noticeably harder to operate. Over time, frame settling and seal compression change the geometry of the opening. A CGI window that once glided smoothly starts binding. Forcing it work-hardens the hardware until something breaks, usually at the worst possible time.

If you’re seeing any of these symptoms on a CGI unit in South Miami, don’t wait for the next storm to test it. A window that shows water staining or haze has already failed its most basic job.

Replacement Cost & What’s Included

CGI window replacement in South Miami runs roughly $900 to $2,800 per window installed, with the wide range driven by three factors: the window’s size, whether it’s a fixed panel or an operable unit, and whether the replacement needs to carry the same design pressure rating as the original permit required. A standard 36-inch by 60-inch Estate series single-hung will land on the lower end. A 72-inch by 72-inch fixed picture window with a high DP rating for a second-story exposure on the water side of Old Cutler Road will push toward the top.

Every replacement quote from Winslow Windows & Doors includes the window itself, removal and disposal of the failed unit, new glazing materials, installation, and a written workmanship warranty. We give you a line-item price before any work starts, and that price doesn’t change once the job is underway. The Done Right Promise applies here exactly as it does on a full-house installation: if it isn’t done right, we come back and make it right. My name’s on the truck, if the work isn’t right, neither am I. No trip charge inside our home county, and if you’re a senior or veteran, you’ll get 10% off every job, permanently.

DIY or Call Us?

Impact window replacement is not a DIY job, full stop. A CGI unit can weigh over 150 pounds, and the fasteners and anchoring schedule are specified by the product approval drawing for a reason. If a window is removed and reinstalled without the correct anchors, sealant, and flashing, the whole opening becomes the weak point in your building envelope. We’ve seen homeowners try to save money on a single window and end up with water intrusion that cost ten times the original job to remediate.

What you can safely do is identify the problem: check for the glass etching, take photos of the label if it’s readable, and note when the symptoms started. That’s genuinely useful information and it helps us arrive with the right parts on the truck. Then call us at (850) 930-1813. A live person will answer, and we’ll schedule the replacement around your timeline, not ours. In South Miami, the window that fails quietly in May is the one that leaks in September. Let’s fix it before then.

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