CGI Window Replacement Nationwide | Sightline Windows & Doors Hobe Sound

CGI Window Replacement: The Hobe Sound Owner’s Guide

CGI window replacement in Hobe Sound typically runs $340 to $780 per opening installed, depending on the series, glazing package, and whether the original frame is salvageable. We stock CGI-compatible sash packs, complete frames, and impact-rated glazing for same-day measurement on most standard sizes found in Hobe Sound homes built between 2005 and 2020. Most owners first notice trouble when a window won’t stay open, the sash drops, or they spot fog between the panes after a humid stretch - signs that the balance system, weatherstrip, or insulated glass unit has reached end of life in South Florida’s salt air.

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Which CGI Models This Applies To

CGI windows in Hobe Sound fall into three main series: the Estate Series (aluminum impact-rated), the Sentinel Series (vinyl impact-rated), and the commercial-grade Targa line. The Estate 200 and 400 series dominate the waterfront homes near Peck Lake and along the St. Lucie River, where we see them most often. Each series uses proprietary sash dimensions, glazing bead profiles, and balance hardware that do not cross over.

To identify your model, check the etched mark in the glass corner or the sticker on the frame jamb. The series code (ES200, ES400, SEN100, etc.) and the NFRC rating label tell us the glazing thickness and frame depth. Here’s where owners go wrong: assuming a “standard size” sash from a big-box supplier will fit. CGI’s frame extrusions are proprietary. An ES400 sash pack measures 3-1/4 inch frame depth with a specific glazing pocket angle that aftermarket generics rarely match. We source OEM CGI components or verified equivalents from our supplier network that match the original spec sheet - not close enough, but exact.

Sightline Windows & Doors Hobe Sound is an independent service provider with no affiliation to CGI Windows & Doors. We maintain compatibility data across all eight manufacturer lines we install, including PGT, CWS, and ES Windows.

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After

Signs Your CGI Window Replacement Is Failing

• The sash drops or won’t stay open. This points to a failed coil balance or broken pivot bar in the jamb liner. In Hobe Sound’s salt air, we’ve seen balance springs corrode in as little as eight years on homes within a half-mile of the water. The sash becomes a safety hazard when it slams shut unexpectedly.
• Fog or condensation between the glass panes. The insulated glass unit (IGU) seal has failed, breaking the argon fill and destroying the thermal barrier. Once moisture enters, the Low-E coating degrades and the visible light transmittance shifts. In our experience, IGUs in west-facing Hobe Sound exposures fail two to three years sooner than shaded north faces due to thermal cycling stress.
• Visible frame corrosion or pitting at the sill. Aluminum frames in coastal Martin County take a beating. When the anodized layer breaks down, salt accelerates oxidation at the weep holes and sill nose. We measure frame wall thickness with a micrometer; anything below 0.060 inch means the structural integrity is compromised and a sash pack won’t solve it.
• Air infiltration or water intrusion during storms. Compression weatherstrip loses memory over time, and the pile weatherstrip at the sill track mats down. The telltale is a paper-thin gap you can feel with a candle flame test. On impact-rated units, this also breaks the pressure seal required for HVHZ code compliance.
• Cracked or delaminated impact glazing. Impact glass can spider-crack from thermal stress or micro-impacts without shattering. The interlayer holds it together, but the structural rating is gone. Florida Building Code requires replacement with a labeled product; a regular glass shop cannot legally substitute.

Replacement Cost & What’s Included

What drives the range: frame condition, accessibility (second-story openings add ladder time), and whether the original installation used proper flashing integration. We pull the interior trim, photograph the rough opening, and document any water damage before quoting - Haven Clause 1 means the measured survey and the written price are the same document. The 365-Day Done Right Promise covers all replacement work, and every job leaves a documented photo record.

DIY or Call Us?

There’s a safe middle ground. A homeowner can check the model label, operate the sash to isolate where binding occurs, and run the candle test for air leaks. What we don’t recommend: removing a sash with a failed balance (the spring is under tension and can release unpredictably), cutting glazing bead without proper support (impact glass weighs 8 to 12 pounds per square foot), or attempting an IGU swap without a clean-room environment (dust between panes is permanent).

We’ve inherited plenty of Hobe Sound jobs where the owner started with a YouTube video and ended with a bent frame or scratched glass. The measurement is the critical step - Sonia Raman’s habit of measuring the rough opening twice before ordering anything is why our impact-rated installations run without callbacks. Measure it right the first time, and the door closes the way it’s supposed to - every time after that.

For a written price before any work starts, call (772) 362-5967. We answer live, 24/7.

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