CGI Custom & Geometric Windows Nationwide | Sightline Windows & Doors Weston

CGI Custom & Geometric Windows in Weston: What to Know First

We provide independent CGI custom and geometric window service in Weston, from arched impact units to oversized rectangular openings that standard catalogs don’t cover. Most measured surveys are completed within 48 hours of contact, and the written quote you receive is the same document our crew works from - no change orders, no surprises. Custom CGI orders typically run 8-14 weeks from sign-off to delivery, with installation scheduled once we confirm the frame readings against the factory dimensions. This page is for Weston homeowners who already own CGI products or are considering them for a custom opening and want a written price before anyone picks up a tool. Call (754) 812-9260 to schedule your measured survey.

Call (754) 812-9260

How CGI Products Fail - and How We Fix Them

• Sentinel by CGI arched windows: The curved top rail on Sentinel series geometric units often develops seal fatigue at the spring points where the radius transitions to the jamb. We’ve traced this to the factory’s standard glazing tape application, which doesn’t account for the thermal cycling Weston sees between August afternoons and January mornings. We remove the sash, clean the rail to bare aluminum, and apply a two-part structural silicone with a backer rod at the stress concentration. The repair carries our 365-Day Done Right Promise.
• Impact-rated custom rectangles with integrated transoms: CGI’s impact-rated custom assemblies use a heavier interlayer that adds dead load to the hinge side. On openings over 48 inches wide, the continuous hinge can sag 1/8 inch within five years, causing the sash to drag at the sill. We don’t shim and hope; we measure the reveal with a taper gauge, then specify a reinforced hinge block or, on severe cases, a factory-ordered hinge upgrade that distributes the load across three points instead of two.
• Fixed geometric triangles in coastal exposures: Weston homes near the Town Center corridor and along Bonaventure Boulevard catch salt-laden air that degrades the weep system on CGI fixed triangles. The factory weep slots are 3/16 inch wide - adequate inland, but prone to salt crust blockage within 18 months here. We drill supplemental weep channels at the sill nose and install baffled covers that maintain pressure equalization without inviting water back in. Sonia Raman first documented this pattern in her field log after seeing it repeat on three Weston retrofits in 2019.
• Sparta series custom shapes with SDL grids: CGI’s Sparta line uses a snap-in SDL (simulated divided lite) grid system that loosens in custom shapes where the grid must follow a radius or angle. The plastic clips fatigue, and the grid bows away from the glass. We stock the OEM clips but also carry a metal-backed aftermarket clip that bites harder and won’t creep. On warranty jobs we use factory parts; on out-of-warranty repairs, we explain the trade-off and let the owner choose, with the choice noted in writing.
• Oversized fixed units with thermal stress cracks: CGI custom rectangles over 72 inches on a side require heat-strengthened glass per Florida code, but the edge quality from some production runs shows chatter marks that act as crack initiators. We inspect every delivered lite with a polarized lens before installation. If we find edge defects, we document them, refuse the unit, and order a replacement - the cost lands on us, not the owner, because Haven Clause 1 says the written price assumes a correct part.

Our CGI Custom & Geometric Windows Process

1. 1
   Measured survey you keep. We arrive with a laser measure, a digital level, and a camera. You get the dimension sheet, the frame condition notes, and the three-reference-point square check. Sonia’s habit: “Measure it right the first time. The window does not care how confident you were.”
2. 2
   Diagnosis with options. We identify whether the issue is glazing, hardware, frame, or seal, then explain OEM versus quality aftermarket parts where both exist. Every option is written with a price.
3. 3
   Written quote that is the work order. Haven Clause 1: the document you sign is the document the crew uses. No line item changes without your initials.
4. 4
   Parts procurement and verification. For custom CGI units, we confirm factory dimensions against our survey before production release. For repairs, we verify part numbers against the series and vintage of your window.
5. 5
   Installation with photo record. Every step is photographed: the opening before, the frame during, the finished unit, and the cleanup. You receive the folder by email before we leave.
6. 6
   365-Day Done Right Promise activation. The warranty document is generated from the same file as the quote, so there’s no dispute about what was promised.

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What CGI Custom & Geometric Windows Costs in Weston

These ranges reflect what we’ve written on quotes for Weston homes in the past 24 months. Your opening is specific; call (754) 812-9260 for a measured survey and an exact written price - estimates are free, and we offer a free second opinion on any competitor’s written estimate.

Why Weston Homeowners Call Sightline Windows & Doors Weston for CGI Work

We are an independent CGI service provider - not affiliated with or authorized by CGI - which means we specify the product that fits the opening, not the one that clears a quota. Our crews have handled CGI, PGT, CWS, ES Windows, and ECO Window Systems on the same street in Weston, so we know when a CGI unit is the right choice and when another line’s geometric program fits the performance requirement at a different price point. Every technician is background-checked, uniformed, and identified by license number before arrival - Haven Clause 3. The phone is answered by a live person, 24/7, because a leaking custom window doesn’t respect business hours. And every job leaves a documented photo record, because evidence is the only proof that holds up.

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