CGI Window Replacement Nationwide | Winslow Windows & Doors

CGI Window Replacement: The Miami Owner’s Guide

If you’re searching for CGI window replacement in Miami, here’s the short version: we stock CGI-compatible replacement windows and parts, and most single-unit swaps run between $850 and $2,400 installed depending on size, glass package, and frame condition. We can usually get your replacement ordered and installed within 5 to 10 business days, and we’ll walk you through the exact part matching before you spend a dime. Most Miami homeowners discover they need a replacement the hard way: a hurricane season inspection flags a cracked laminate, the window won’t seal after a decade of salt air, or condensation starts fogging between the glass panes. You’re not looking for a sales pitch. You’re looking for the right part at an honest price, and that’s exactly what we do.

Call (863) 946-5039

One thing up front, so there’s no confusion: Winslow Windows & Doors is an independent, locally owned installer. We are not affiliated with CGI, but we install and service their products as an authorized dealer, and we’ve worked with their window lines across Miami-Dade for over 15 years. That means we know which parts interchange, which ones don’t, and where the real cost drivers are.

Which CGI Models This Applies To

CGI manufactures several window series that show up in Miami homes, and the replacement path depends on which one you have. The most common lines we service are the Sentinel series, the Estate Collection, and the Targa series, along with older CGI models that predate current naming conventions. If you’re not sure which one you have, check the corner of the sash or the frame edge for a silver or white sticker with the CGI logo and a series code. That code tells us the glass package, the impact rating, and the year of manufacture, all of which matter when we’re matching a replacement.

Here’s where Miami owners get tripped up: CGI glass packages are specific to the series. A Sentinel laminated insulating unit will not drop into an Estate frame without modification, even if the visible dimensions match. The laminate thickness, the interlayer type, and the spacer system all differ. We measure to the sixteenth of an inch and verify the series before we ever order a replacement, because guessing wrong means a window that binds, leaks, or fails pressure testing.

On the OEM versus aftermarket question: for the glass unit itself, we strongly recommend genuine CGI replacement glazing. The impact rating on that glass is tied to the manufacturer’s certification. An aftermarket laminated unit might physically fit and might save you $100, but it won’t carry the same Miami-Dade NOA (Notice of Acceptance) documentation that your original CGI window has. If you sell the house or file an insurance claim, that paperwork matters. For hardware like balances, locks, and rollers, quality aftermarket equivalents are often fine, and we’ll tell you honestly which parts fall into which category.

Signs Your CGI Window Replacement Is Failing

• Fogging or moisture between the glass panes. This means the seal on the insulated glass unit has failed. In Miami’s humidity, once the desiccant inside the spacer is saturated, you’ll never get the condensation out. The fix is a new sealed unit, not a DIY defogging kit that works for six weeks and voids whatever warranty remains.
• Cracks or spider webbing in the laminate layer. CGI impact glass uses a polyvinyl butyral (PVB) or SentryGlas interlayer between two panes. When that interlayer shows visible cracking or delamination at the edges, the impact rating is compromised. This is not cosmetic. In a storm, that window won’t perform the way it was certified to perform.
• Hard-to-operate sashes or windows that won’t stay open. On older CGI units, the spiral balances or block-and-tackle systems wear out after 8 to 12 years of daily use in salt air. The window gets heavy, the sash drops, or it takes two hands to lift. That’s a hardware replacement, not a full window replacement, and it’s usually a same-visit fix if we have the part on the truck.
• Water stains or soft drywall below the window after rain. This can mean the window’s weep system is clogged or the frame seal has failed. Miami’s afternoon thunderstorms will find any gap. The leak might not even be the glass. It could be the caulking, the flashing, or the drainage channel. We diagnose that before recommending any replacement.
• Rattling or vibrating during high winds. A properly installed CGI window should stay rigid in 40 mph gusts. If you hear the glass moving inside the frame, the glazing bead or the setting blocks have shifted. Left alone, that movement wears the seal and creates the conditions for a blow-in during a storm.

Replacement Cost & What’s Included

In Miami, a single CGI window replacement typically runs between $850 and $1,600 for standard sizes up to roughly 40 by 60 inches. Larger units, custom shapes, or windows with thicker laminated glass and high-performance low-E coatings run $1,800 to $2,400 each. The spread comes down to the glass package, the series, and the condition of the existing frame. If the frame is solid and only the glass unit or hardware failed, your cost stays on the lower end. If salt air has eaten the frame corners or the rough opening needs new flashing, the number moves up.

Every quote we give in Miami is a written, line-item price. You’ll see the cost of the glass unit or part, the labor hours, any disposal fees, and the warranty terms before we start. No change orders unless we find something we both agree needs addressing. The work itself carries our workmanship warranty, and the CGI replacement glass carries the manufacturer’s warranty. When we install a replacement on a window that still matters to your home’s hurricane protection, we also re-verify the attachment and anchoring so the whole assembly works as a system, not just a glass swap.

DIY or Call Us?

For a leaking window, a fuzzy seal, or a sash that sticks, there are honest things an owner can check. Clean the tracks. Clear the weep holes at the bottom of the frame with a small brush or compressed air. Those are maintenance items, not repairs, and they solve a surprising number of nuisance problems in Miami homes.

But when the glass itself needs replacement, stop there. A CGI laminated unit is heavy. A 40 by 60 inch piece can weigh 70 pounds or more, and removing it without the right suction cups and setting techniques puts you at real risk of injury or a dropped sash. More importantly, a replacement glass unit that isn’t seated, shimmed, and glazed correctly will fail pressure testing and won’t protect your home the way it’s rated to. The labor on a window swap is a small fraction of the total. Saving it by doing the work yourself doesn’t pencil when the consequence is a flooded bedroom in August. Call us at (863) 946-5039 and we’ll give you an honest read on whether you need a repair or a replacement. The estimate is free.

FAQs