Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
CGI Custom & Geometric Windows in North Palm Beach: What to Know First
We install and service CGI custom and geometric windows in North Palm Beach as an independent CGI service provider - not affiliated with or authorized by the manufacturer. Most custom CGI units we measure are fabricated within 8-12 weeks, and our written quote, delivered after Sonia Raman’s measured survey, is the same document that governs the final invoice. If the opening isn’t right, the window isn’t right - that’s where we start.
This page is for North Palm Beach homeowners who already own CGI products or are specifying them for a custom build, and need a crew that understands how CGI’s impact-rated frames behave in coastal Florida conditions. Call (561) 475-1246 to schedule your free measured survey.
How CGI Products Fail - and How We Fix Them
- Sparta series fixed geometric windows: The thermal break in the extruded aluminum frame separates at the miter joints after repeated expansion cycles in North Palm Beach’s salt-air environment. We see this most in gable-end triangles and trapezoids where southern exposure pushes daily surface temperatures past 140°F. Our fix is a full frame-out, not a glazing-only replacement, with back-rod and silicone sealant specified for movement accommodation rather than the original butyl.
- Sentinel by CGI radius-top units: The laminated glass lite delaminates at the curved edge because the heat-soak process for bent glass doesn’t always account for the stress concentration at the springline. We document the delamination pattern with photos, submit to CGI’s warranty group when the unit falls within coverage period, and install a temporary sealed unit if lead time extends past 30 days.
- WinGuard aluminum geometric shapes: Operating hardware on awning and hopper configurations binds when the stainless steel hinge pin gallops against the aluminum boss - a galvanic issue accelerated by humidity. We replace with OEM hinge sets where available, or machine a brass bushing insert where CGI has discontinued the specific bracket geometry.
- Commercial series oversized fixed units: The setting block migrates under sustained wind load, creating a point-load condition that cracks the inner lite. In North Palm Beach, this follows named storms more often than it follows age. We reset with EPDM setting blocks at quarter-points and add anti-walk clips where the original specification omitted them.
- Custom color anodized frames: The anodic coating chalks prematurely on west-facing elevations, not from defective finishing but from UV exposure combined with salt spray accumulation in the porous oxide layer. We do not attempt field refinishing; we quote replacement extrusions with Kynar 500 fluoropolymer paint finish, which holds color and gloss in coastal Florida per our documented photo records from Lakeside Park retrofits.
Our CGI Custom & Geometric Windows Process

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Measured survey. Sonia Raman visits with a laser measure, level, and story pole. The customer keeps the dimension sheet. We note rough-opening squareness, header deflection, and sill pan condition - on North Palm Beach concrete-block homes, we expect some.
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Written scope and price. Haven Clause 1: the quote references the same dimensions, specifies the CGI series and glass make-up, and names every line item in dollars. No change orders permitted without a revised written scope signed by both parties.
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Fabrication coordination. For custom geometric shapes, we verify CGI’s shop drawings against our field dimensions before release to production. A quarter-inch assumption on a radius-top springline costs six weeks.
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Installation under Haven Standard. Verified crews arrive uniformed, with license numbers provided in advance per Haven Clause 3. We install, seal, and test-operate. Every step is photographed.
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Documentation handoff. The customer receives the photo record, the completed scope with actual hours and materials, and the 365-Day Done Right Promise stamped and dated. If it’s not done right, we make it right.
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AfterWhat CGI Custom & Geometric Windows Costs in North Palm Beach
| Scenario | Typical Range |
|---|---|
| CGI Sparta fixed geometric (triangle, trapezoid, pentagon), standard impact-rated glass, existing frame sound | $1,800 - $2,900 per opening |
| CGI Sentinel radius-top replacement, full frame-out, laminated low-E glass | $2,400 - $3,800 per unit |
| CGI WinGuard operating geometric (awning, hopper), including hardware replacement | $2,200 - $3,500 per opening |
| Oversized custom fixed unit, commercial series, crane set required | $5,500 - $9,000+ per unit |
| Full rough-opening correction (concrete block, stucco repair, header reinforcement) | $800 - $2,200 additional |
What moves the price: glass make-up (laminated vs. insulating laminated), frame finish (standard mill vs. custom paint), access difficulty (second-story gable end, interior scaffolding), and whether the original installation left a proper sill pan and flashing. We do not quote until we measure. Call (561) 475-1246 for your free estimate - the written price is yours to keep.
Why North Palm Beach Homeowners Call Sightline Windows & Doors North Palm Beach for CGI Work

We have installed and serviced CGI products in North Palm Beach since 2012, including full retrofits in Lakeside Park where older concrete-block construction demanded rough-opening corrections before any new unit could be set square. Our crew knows the difference between a Sparta and a Sentinel frame profile without reading the stamp, and we carry PGT, CWS, ES Windows, and ECO Window Systems specifications as backup when a CGI lead time doesn’t match the project’s schedule.
The Haven Standard governs every opening: written price first, verified crew on site, evidence on every job, no surprises. Sonia Raman measures every opening herself on the first visit because she has seen what a quarter-inch assumption costs in lead time and money. Our 365-Day Done Right Promise is stamped on the paperwork, not offered as a courtesy.
FAQs
No - CGI’s product warranty covers manufacturing defects regardless of who installs, provided the installation follows published guidelines. We document our installations to those guidelines, and we flag warranty-eligible issues (glass delamination, frame seam separation) with photo evidence you can submit directly to CGI. For labor warranty, our 365-Day Done Right Promise stands independent of the manufacturer’s coverage. Call (561) 475-1246 if you have a specific warranty question - we’ll review it at no charge.
Sometimes. CGI has discontinued several hinge and lock geometries for older WinGuard operating shapes. We source OEM inventory where it exists, and where it doesn’t, we machine brass bushing inserts or fabricate stainless brackets to restore function without altering the frame profile. We will not install a hardware set that compromises the impact rating. Bring us the failed part - we’ll photograph it and quote both OEM and machined alternatives.
Repair is viable when the frame is square, the thermal break is intact, and the failure is isolated to glass, hardware, or sealant. Replacement is necessary when the frame has corroded through at the weep slot, the thermal break has separated at the miter, or the rough opening itself has settled out of square by more than 3/8 inch. Sonia Raman’s measured survey determines which path applies; the written scope names it explicitly. Call (561) 475-1246 to schedule the survey - estimates are free.
Standard lead time from CGI is 8-12 weeks for custom shapes, with radius-top and true-arch units trending toward the longer end. We do not quote expedited fabrication - CGI’s production schedule is what it is, and we will not promise a timeline we cannot document. We will, however, install a temporary sealed unit or board-up if the opening is compromised, and we coordinate delivery to minimize your exposure. Call (561) 475-1246 to discuss your project timeline.
Yes, for any replacement that alters the rough opening or changes the egress configuration. North Palm Beach requires permits for impact-rated window installations in the coastal high-velocity zone, which covers most of our service area. We pull the permit, schedule inspection, and pass it - the permit number and inspection sign-off appear in your documented photo record. If your project is a same-size replacement in an existing opening, we verify whether the local jurisdiction requires notification; we do not guess. Call (561) 475-1246 and we’ll confirm the permit status for your specific address.
Written by Sonia Raman, Owner, Sightline Windows & Doors North Palm Beach at Sightline Windows & Doors North Palm Beach, serving North Palm Beach and nearby areas.










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