CGI Window Installation Nationwide | Sightline Windows & Doors North Palm Beach

CGI Window Installation: The North Palm Beach Owner’s Guide

CGI window installation in North Palm Beach typically runs $340-$780 per opening for standard retrofit replacement, depending on series, impact rating, and whether the existing frame needs correction. We stock CGI-compatible hardware and sealant systems on our trucks, and most residential swaps are completed in a single day once the measured survey is signed. Homeowners usually discover a problem when they feel Gulf Stream humidity seeping through a corner that used to stay dry, or when the sash won’t hold position in a second-story bedroom after a storm season.

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Which CGI Models This Applies To

CGI builds three residential lines we see in North Palm Beach: the Estate Series (aluminum impact-rated), the Sentinel Series (vinyl impact-rated), and the commercial-grade Targa Series. Each uses distinct frame depths, glazing stops, and anchor patterns. The Estate 200 and 400 series share a 4-9/16 inch frame depth but use different corner keys; the Sentinel vinyl line requires a dedicated expansion gap calculation that aluminum does not.

We identify the correct replacement approach three ways: the etched mark on the glass spacer (visible when you open the sash), the sticker inside the top track with the NFRC certification number, and the rough-opening measurement Sonia takes on the first visit. OEM parts from CGI’s Opa-locka distribution center maintain warranty continuity; quality aftermarket equivalents exist for hardware and weatherstrip but not for impact-rated glazing packages. We specify by what the opening requires, not by what is in stock.

Signs Your CGI Window Installation Is Failing

• Visible moisture between panes. The insulating glass unit seal has failed, which in North Palm Beach’s salt-air environment typically happens 8-14 years after installation depending on exposure. The desiccant inside the spacer becomes saturated and cannot be repaired; the IGU must be replaced as a unit.
• Sash drops or won’t stay open. The balance system, whether coil spring or block-and-tackle, has lost tension. In CGI’s Estate Series, the balance shoe wears against the aluminum track; in Sentinel vinyl, the pivot bar cracks first. Both require disassembly of the sash from the frame.
• Air infiltration at the meeting rail or frame perimeter. Compression weatherstrip has taken a permanent set, or the frame has shifted in the opening. We see this often in Lakeside Park homes where original installations lacked proper shimming against concrete block.
• Hardware operates with grinding or catches. The multipoint lock mechanism has corroded, or the keeper has shifted out of alignment. Salt accumulation from ocean exposure accelerates this; the lock body usually fails before the handle.
• Frame separation at corners or sill. The structural sealant or mechanical splice has degraded. This is not cosmetic; it compromises the impact rating and water management path. We document this with photos and mark it for immediate correction.

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Replacement Cost & What’s Included

What drives the range: frame condition (whether we can retrofit into the existing or must correct the rough opening), glass specification (impact-rated laminated vs. standard IGU), and accessibility (second-story openings require our pump jack or scaffold setup). Every quote is the measured survey you keep; the written price before any work starts cannot differ from that document. The 365-Day Done Right Promise covers labor and installation materials; manufacturer warranties on the CGI unit itself transfer per their terms.

DIY or Call Us?

An owner can safely check three things: confirm the model from the interior sticker, verify the symptom is consistent (not seasonal swelling), and clear weep holes of debris with a pipe cleaner. What goes wrong past that point is usually the frame. CGI windows, particularly impact-rated units, weigh 40-70 pounds per sash depending on size and glazing. Removing one without proper support risks glass breakage, frame distortion, and personal injury. The multipoint lock and balance systems require manufacturer-specific tools we carry.

If the opening isn’t right, the window isn’t right - that’s where we start. Sonia measures every opening herself on the first visit because she has seen what a quarter-inch assumption costs in lead time and money. Call (561) 475-1246 to schedule your free estimate; we will review any competitor’s written quote at no charge.

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