CGI Window Installation Nationwide | Sightline Windows & Doors Boynton Beach

CGI Window Installation: The Boynton Beach Owner’s Guide

CGI window installation in Boynton Beach typically runs $340-$780 per opening for standard replacement, with impact-rated units starting around $620 and custom geometric configurations reaching $1,400+. We stock CGI frame components, sash hardware, and glazing beads on our Boynton Beach trucks, and most residential replacements are surveyed and scheduled within 48 hours. Homeowners usually discover an installation problem when they notice water intrusion during our summer downpours, feel drafts where the sash meets the frame, or spot caulk separation along the exterior flange - all signs that the original install detail was wrong for our coastal conditions.

Call (561) 421-3844

Which CGI Models This Applies To

CGI manufactures three residential lines we see regularly in Boynton Beach: the Sentinel series (single-hung and horizontal roller), the Estate Collection (architectural and casement profiles), and the Targa impact-rated line. Each uses distinct frame depths and glazing stops. The label you need is the etched marking in the glass corner or the stamped aluminum tag on the frame header - it will read either “CGI-XXX” with a three-digit series code or carry the Florida Product Approval number beginning FL.

Sentinel single-hung units use a 2-5/8 inch frame depth with a snap-in glazing bead; Targa impact units run 3-1/8 inch with a mechanically fastened stop that requires a specific torque setting. We have replaced Estate Collection casement sashes in the Lake Eden and Chapel Hill neighborhoods where the original installer used standard vinyl shims instead of CGI’s specified composite set - the difference in thermal expansion rates cracked the frame corners within three years. For hardware, we stock OEM CGI rollers, locks, and balances; for glazing and weatherstrip, we match to Milgard-equivalent or Deventer spec depending on the original build date. CGI changed its glazing bead profile in 2019, so a 2017 unit and a 2021 unit sitting side by side in the same Boynton Beach home may need different replacement parts.

Sightline Windows & Doors Boynton Beach is an independent service provider with no affiliation with CGI Windows and Doors. We source parts through verified CGI distributors and maintain cross-reference sheets for discontinued hardware.

Signs Your CGI Window Installation Is Failing

• Water staining at the interior sill or drywall below the window. In Boynton Beach, this usually traces to failed end-dam sealing or an improperly sloped sill pan. The water follows the frame track and pools where the subsill meets the rough opening. We find this most often on east-facing walls that take the direct weather.
• Operational drag or sash drop in single-hung units. The balance shoe or coil spring has lost tension. CGI’s balance assemblies are rated for 15,000 cycles, but salt air corrosion at the pivot bar accelerates wear. A sash that won’t stay open is a balance failure, not a lubrication problem.
• Visible daylight between the sash and frame when closed and locked. The weatherstrip has compressed past recovery or the frame has racked out of square. In Boynton Beach’s humidity cycle, vinyl and aluminum expand at different rates; poor shim placement transfers that stress to the sash meeting rail.
• Caulk failure or separation at the exterior perimeter. The original installer likely used a generic silicone instead of CGI’s specified polyether sealant or failed to prime the aluminum flange. We have pulled units in the neighborhoods near Boynton Harbor Marina where the caulk line looked intact but had zero adhesion underneath - a cosmetic seal, not a weather seal.
• Condensation between panes on insulated units. The edge seal has failed. CGI’s standard IG unit carries a 20-year glass warranty, but the installation method matters: if the glazing bead was driven too tight, the edge seal stress leads to premature breaching. We document this with frame deflection readings before we file any warranty claim.

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Replacement Cost & What’s Included

What drives the range: unit size, impact rating requirement, whether the original opening is plumb and square, and how many layers of exterior trim we must work around. Every quote we write in Boynton Beach starts with a measured survey you keep. The scope lists the exact CGI series, the glass spec, the sealant type, and the fastener schedule. The price on that document is the price on the final invoice - Haven Clause 1. Our 365-Day Done Right Promise covers the installation labor and materials; manufacturer glass warranties pass through at their original terms.

DIY or Call Us?

There is a safe middle ground for a careful homeowner. You can verify the CGI model from the glass etch, photograph any water damage for documentation, and check that the weep holes at the sill are clear of debris - a blocked weep system explains many “leaks” we are called to in Boynton Beach.

What we do not recommend: removing a CGI impact-rated sash without proper support rigging, attempting to reglaze an insulated unit in place, or re-caulking without first determining why the original sealant failed. The aluminum frame edges are sharp, and an unsupported sash on a second-story opening is a genuine hazard. We have been called to jobs where a homeowner cracked the glass trying to force a stuck balance shoe, turning a $240 hardware call into a full unit replacement.

Measure it right the first time and the install is already half done. Sonia Raman checks every measured survey personally before the order is placed; her running list of sealant failures is the reason we verify caulk joint adhesion with a pull test on every job.

If you are unsure whether the problem is the part, the install, or the opening itself, call (561) 421-3844. We will schedule a free estimate, hand you the written scope, and let you decide on your own timeline.

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