CGI Window Replacement Nationwide | Sightline Windows & Doors Boca Raton

CGI Window Replacement: The Boca Raton Owner’s Guide

CGI window replacement in Boca Raton typically runs $890-$2,400 per opening installed, depending on series, size, and whether the frame is intact or water-damaged. We stock CGI-compatible sash, hardware, and glazing packages for same-day replacement on most residential series when the frame is sound. Most Boca Raton owners discover the problem when a window won’t stay open, won’t lock, or shows fog between the panes after a storm season.

Call (561) 200-8592

Which CGI Models This Applies To

CGI’s residential line breaks into three series you’ll find across Boca Raton: the Estate Series (aluminum impact-rated), the Sentinel Series (vinyl impact-rated), and the commercial-grade Targa Series. The Estate 200 and 400 series dominate the 33431, 33432, and 33434 zip codes we work most often. Each series uses proprietary frame extrusions, so a Sentinel sash will not seat in an Estate frame even when the rough opening dimensions match.

To identify your series, check the spacer bar between glass panes for the etched CGI logo and series code, or open the sash and photograph the balance shoe and lock mechanism. We carry both OEM CGI replacement sashes and tempered aftermarket equivalents rated to the same Miami-Dade HVHZ standards. For Boca Raton’s salt-air exposure, we typically recommend OEM on Estate Series frames older than eight years; the aluminum thermal break degrades unevenly, and aftermarket sashes often need field modification to seal. On Sentinel vinyl frames, quality aftermarket units perform identically at roughly 15% lower parts cost.

One compatibility gotcha: CGI revised its Estate Series lock keeper in 2019. The pre-2019 keeper uses a 2-1/8″ screw spacing; post-2019 uses 2-3/8″. Measure before ordering, or we’ll measure it for you.

Signs Your CGI Window Replacement Is Failing

• The sash drops or won’t stay open. The coil balance system has lost tension or the balance shoe is cracked. In Boca Raton’s humidity, the nylon balance shoes on CGI units from 2012-2018 are particularly prone to brittle failure; we replace roughly thirty per year in the Broken Sound area alone.
• Fog or moisture between glass panes. The insulated glass unit (IGU) seal has failed. Once argon or air escapes and Florida humidity enters, the low-E coating begins degrading from the edge inward. Repair is not possible; the IGU requires replacement.
• Lock won’t engage or feels loose. Either the lock mechanism has worn or the frame has settled, throwing off keeper alignment. On impact-rated CGI units, a misaligned lock is also a pressure-rating failure; the window may not perform as designed in a storm.
• Visible frame corrosion or pitting at the sill. Salt air and pooled condensation attack the aluminum thermal break. We see this most on east-facing Boca Raton installations within a half-mile of the Intracoastal, where morning salt fog lingers.
• Draft or water intrusion during heavy rain. The weatherstrip has compressed beyond recovery, or the sill track weep holes are blocked with debris. On CGI sliding windows, the interlock weatherstrip is a wear item with roughly ten-year life in full sun exposure.

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Replacement Cost & What’s Included

What drives the range: unit size, series tier (Estate 400 costs more than 200), whether the existing frame is plumb and square, and whether we discover sub-sill rot once the unit is out. Our measured survey documents frame condition before we quote; the written price you receive is the invoice price. Haven Clause 1: the measurement and the quote are the same document. Every replacement carries our 365-Day Done Right Promise and leaves a documented photo record of the completed opening.

DIY or Call Us?

What you can safely check: verify the series code etched on the glass, photograph the lock and balance mechanism, and confirm whether the frame moves when you push on it (indicating anchor failure or rot). Clearing weep holes with a pipe cleaner is also reasonable owner maintenance.

Where DIY goes wrong: impact-rated window units weigh 40-90 pounds depending on size and glazing. Removing a sash without proper support risks glass breakage and personal injury. More critically, an improperly seated replacement sash voids the Miami-Dade HVHZ rating; your windstorm inspection may fail, and your insurer may dispute a future claim. The balance system on CGI units is under spring tension; releasing it without a brake tool can damage the frame or cause the coil to unwind forcefully.

We are an independent service provider, not affiliated with CGI. Our technicians are background-checked, uniformed, and identified by license number before arrival. Call (561) 200-8592 to schedule your free measured survey. We’ll hand you the written price before any work starts.

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