CGI Window Replacement Nationwide | TruePane Windows & Doors

CGI Window Replacement: The Naples Owner’s Guide

CGI window replacement in Naples typically runs $850 to $2,400 per window installed, depending on the series, size, and whether we’re replacing the sash, the glass unit, or the full frame. We stock CGI-compatible replacement parts on our trucks and complete most single-window swaps in one visit. The way most Naples homeowners find us is simple: a window that won’t lock square after years of salt exposure, a fogged pane that won’t clear, or a frame that’s begun to pull away from the rough opening after a storm season or two.

Call (239) 326-9942

We’re an independent window and door contractor, not a CGI corporate entity. That matters because we can quote you the OEM part and a quality aftermarket equivalent side by side on paper, and you decide. We’ve been doing that in Naples for years, including a long stretch of impact-glass replacements along the Gulf Shore Boulevard corridor that taught us exactly how salt air and storm pressure punish a poorly seated frame.

Key takeaways:

• CGI parts are not universal; the series and year determine which hardware and glass match.
• Most Naples failures we see are seal failures, lock wear, and frame corrosion, not broken glass.
• We carry common CGI replacement hardware and can order any remaining part same-week.
• Every job carries a 90-Day Done Right Promise and both warranty layers registered in writing.

Which CGI Models This Applies To

CGI builds impact windows under several lines: Sentinel, Estate, Tropic, and the newer CGI Commercial and Custom series. The gotcha most Naples homeowners run into is that a window ordered in 2009 and a window ordered in 2019 may look identical from the outside but take different balances, different cam locks, and different interlock weatherstripping. CGI changed hardware suppliers more than once, and we regularly see older Sentinels with a sash that no longer seals because the lock stile has worn to the point where the cam no longer engages.

To identify what you have, start with the label. CGI etches a code into the glass corner on most impact models, and the frame usually carries a sticker on the head or jamb with the series and the manufacturing date. If the sticker is gone or illegible, measure the visible glass width and height, then measure the frame depth. A Naples home built after 2002 under Miami-Dade code will almost always have a deeper frame profile on the windward side. Bring us those numbers and a photo of the hardware, and we can usually identify the series before we arrive.

On the OEM-versus-aftermarket question: for glass, we recommend OEM or a certified impact-glazing equivalent that matches the original design pressure rating. For hardware like locks, balances, and weatherstripping, a quality aftermarket part often matches or exceeds the original and costs 30 to 50 percent less. We’ll quote both lines on paper, and we’ll tell you honestly which one we’d put in our own mothers’ homes.

Signs Your CGI Window Replacement Is Failing

• Fog or condensation between the panes. The insulated glass unit has lost its seal. In Naples humidity, a failed seal shows up as stubborn interior fog that no amount of wiping clears because the moisture is trapped inside the glazing.
• The sash no longer locks or the handle spins without engaging. The cam lock or keeper has worn past tolerance. On CGI windows, this is almost always accelerated by debris and salt film building up in the lock channel.
• The window sticks, drags, or drops when opened. The balance system has failed or the frame has shifted. A hard drop is a genuine hazard, especially on a large Estate picture-sash combination.
• Daylight or a draft is visible at the interlock. The meeting-rail weatherstripping has flattened, or the frame has racked out of square from years of storm-pressure cycling. You’ll feel it first in August humidity and in January winds off the Gulf.
• Drywall cracks or a gap at the window perimeter. This is the one that gets our attention fast. Cracks at the corners or a visible seam at the caulk line often mean the rough opening was never flashed or seated correctly, and water has been working its way in for years. That is a full-frame replacement conversation, not a part swap.

Replacement Cost & What’s Included

Here’s the honest range we quote for CGI work in Naples:

• Glass-only replacement (failed IGU): $350 to $850 per pane, depending on size and whether the unit is laminated impact glass or a standard insulated unit.
• Hardware replacement (locks, balances, weatherstripping): $120 to $350 per window, parts and labor.
• Sash replacement: $500 to $1,200 per sash for common CGI series.
• Full-frame window replacement: $850 to $2,400 per window installed, depending on series, size, and whether we’re pulling stucco or resetting a buck-out frame.

What drives the range: the series you have, the DP rating the code requires for your elevation, and whether the rough opening needs correction. Every quote is line-item on paper before we start. No surprise line items on the bill. No second appointment left hanging. Both manufacturer warranty layers are registered in writing before the truck leaves the driveway, and our 90-Day Done Right Promise covers the workmanship. If it is not right when we leave, we come back until it is.

DIY or Call Us?

You can safely check a few things: read the glass etch to get your model code, photograph the hardware from both sides, and measure the visible glass. That information saves a trip and helps us bring the right part. What we don’t recommend is pulling a CGI sash yourself. These are heavy, laminated impact units, and the balance systems are under tension. On a second-story Naples window over a lanai or pool deck, a dropped sash becomes a serious injury risk. We’ve also seen homeowners strip the frame screws trying to free a corroded lock, turning a $200 hardware swap into a full frame job.

Most of our CGI replacements happen in a single visit. A uniformed, background-checked technician measures every opening twice, and we quote the part and the labor before we touch a screwdriver. If you’d rather we handle the identification, the removal, and the disposal, call (239) 326-9942 and we’ll get you on the schedule.

How long do CGI windows actually last in Naples, Florida?

A properly installed CGI impact window in Naples will typically give you 15 to 20 years of service on the frame, with the seal and hardware often failing earlier, in the 8 to 12 year range. The three things that shorten that span here are salt-driven corrosion on the hardware, relentless UV exposure breaking down the weatherstripping, and storm-pressure cycling that gradually works the frame out of square. Windows on west-facing elevations and within a block of the Gulf age noticeably faster. If you want an exact read on your specific windows, call (239) 326-9942 and we’ll assess them for free.

Can a failed CGI window be repaired instead of replaced?

That depends on what failed. A worn lock, a flattened piece of weatherstripping, or a failed balance can almost always be repaired, and that’s the first thing we try. A fogged insulated glass unit cannot be repaired; the seal is gone and the only correct fix is replacing the glazing. A corroded or racked frame is the same story, the frame gets replaced. We’ll always quote the repair path first when it makes sense. Call (239) 326-9942 and we’ll tell you straight what’s fixable and what isn’t.

How long does a CGI window replacement take?

A single-window glass or hardware replacement in Naples is typically completed same-day, in about one to two hours on site. A full-frame replacement runs three to five hours per window, depending on what we find in the rough opening. Most jobs are completed in a single visit. Call (239) 326-9942 to schedule your free estimate.

Do you stock CGI replacement parts, or do I have to wait for an order?

We stock common CGI replacement hardware on the truck: cam locks, keepers, balances, and weatherstripping for the Sentinel and Estate lines we see most often in Naples. Uncommon glass sizes and full frames are ordered same-week from the manufacturer or an equivalent certified supplier. We’ll tell you before we schedule whether your part is on the truck or on order. Call (239) 326-9942 and we’ll check stock while you’re on the line.

We also stock and install replacement parts for PGT, CWS, and ES Windows when a Naples home has mixed brands from a previous renovation.

Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Naples and nearby areas.