Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Before
AfterCGI Custom & Geometric Windows in Three Lakes: What to Know First
We provide independent CGI custom and geometric window service in Three Lakes, with most measured surveys scheduled within a few business days and written quotes delivered before any work begins. Custom CGI units - arched, curved, trapezoid, oversized, and combination shapes - typically run $1,800 to $4,500 installed depending on glazing specification and opening complexity. This page is for homeowners in Three Lakes who already own CGI products or are specifying them for new openings and need a technician who understands how CGI’s frame profiles and glazing packages differ from PGT, CWS, and the other lines we carry. Call (786) 808-5792 to schedule your measured survey. The document we leave with you and the final invoice will match.
How CGI Products Fail - and How We Fix Them
- Sparta series fixed geometric windows: The narrow stile profile on Sparta custom shapes leaves minimal room for thermal expansion in Three Lakes’ afternoon heat loads. We see corner seal deformation after seven to ten years, especially on south-facing gables. We replace with OEM-grade silicone back-bedding and specify Sparta’s upgraded glazing bead where the original thin-wall version has compressed.
- Impact-rated custom shapes with laminated glass delamination: CGI’s impact laminates in geometric configurations - particularly the radius-top units - stress differently than rectangular stock. The curved edge creates a shear point where interlayer separation begins at the glass perimeter. We document the pattern, source the matched laminate from CGI’s Florida distributor, and install with a written moisture-intrusion check at six months.
- Sentinel by CGI multi-point lock drift in oversized openings: Custom widths over 60 inches on Sentinel casement and awning configurations show gradual lock-point misalignment as the sash settles. The hardware isn’t at fault; the mounting surface on CGI’s wider stile extrusion flexes under repeated wind pressure. We shim to true plumb and relocate the keeps rather than replacing hardware that isn’t broken.
- Coastal series geometric windows - anodized finish chalking: Three Lakes homes near the Killian Corridor catch salt-laden afternoon breezes. CGI’s standard anodized coastal finish on custom shapes degrades faster where water channels at the sill extension joints. We strip, etch, and re-coat with a fluropolymer finish that matches the original color code, or specify a factory-clad replacement when the substrate has pitted.
- Estate series double-hung custom sashes - balance spring fatigue in tall geometries: Estate’s 6-foot and taller custom double-hung units use a block-and-tackle balance rated for rectangular sash weights. When CGI builds a trapezoid or extended leg shape, the center of gravity shifts and the balance overcompensates. We calculate the revised sash weight, specify the correct balance assembly from CGI’s parts matrix, and test the travel three full cycles before we leave.
Our CGI Custom & Geometric Windows Process
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Measured survey. We arrive with the printed opening dimensions you provide and measure again - frame square, rough opening plumb, and sightline clearances. You keep the survey document. Sonia Raman checks every custom shape order against CGI’s current fabrication tolerances; a radius that was standard last quarter may have shifted with their extrusion die maintenance schedule.
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Diagnostics and parts decision. We identify whether the failure is frame, glazing, hardware, or seal - then source OEM CGI parts where the warranty position requires it, or specify quality aftermarket where the original part is obsolete and the function is identical. We document the choice in writing.
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Written quote. Haven Clause 1: the price we write is the price on the invoice. No change orders for conditions we could have seen at survey. For custom CGI units with factory lead times, we quote the installed price with the lead time noted, not a placeholder.
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Installation or repair. Our background-checked, uniformed technicians arrive with license numbers visible. We protect floors, remove and stage old units, install to CGI’s fastening pattern (not generic), and seal with the specified backer rod and sealant.
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Testing and documentation. Every operable unit cycles ten times. Every fixed unit gets a level and plumb check. We photograph the completed work, upload to your job record, and leave you the photo index. The 365-Day Done Right Promise begins at signature.
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Cleanup and closeout. We haul old material, sweep the work zone, and review the documentation with you. The invoice matches the quote. Measure once, quote it straight, install it right - nothing else belongs on the invoice.
Before
AfterWhat CGI Custom & Geometric Windows Costs in Three Lakes
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| CGI Sparta custom geometric, fixed, standard laminate | $1,800 - $2,800 | Opening size, shape complexity, finish specification |
| CGI Estate or Sentinel custom shape, operable, impact-rated | $2,800 - $4,200 | Hardware grade, glazing package, egress requirements |
| Oversized CGI custom opening (single unit over 60 sq ft) | $3,500 - $5,500 | Reinforced frame, crane or specialty access, engineering letter |
| CGI geometric seal failure repair (re-glaze, re-bed) | $450 - $850 | Glass retention, scaffold or ladder work, interior trim repair |
| CGI hardware realignment or replacement on custom sash | $280 - $620 | Part availability, sash removal complexity, finish match |
Impact-rated custom shapes carry a premium over standard laminate; the laminated glass and reinforced frame are line-itemed separately so you see where the cost lives. Factory lead times for CGI custom work currently run eight to fourteen weeks depending on the complexity class. We quote the installed price with the lead time noted - no surprises at delivery. Call (786) 808-5792 for an exact quote on your opening. Estimates are free, and we provide a free second opinion on any written estimate you’ve already received.
Why Three Lakes Homeowners Call Sightline Windows & Doors Three Lakes for CGI Work
We’ve served Three Lakes for years, including homes backing up to the Killian Corridor where the afternoon sun loads are no joke and the wrong glazing choice shows up on your FPL bill every month. As an independent CGI service provider, we carry the full parts matrix and current fabrication specs without the manufacturer’s markup structure - and when CGI lead times don’t match your timeline, we can cross-reference to PGT, CWS, ES Windows, or ECO Window Systems for a functionally equivalent custom shape.
Every job runs under the Haven Standard: written price before work starts, verified crew with license numbers on record, documented photo evidence on completion, and the 365-Day Done Right Promise stamped on the invoice. We’ve installed 18,000+ openings since 2012. The measurement and the quote are the same document.
FAQs
No - CGI’s product warranty covers manufacturing defects regardless of who installs or services the unit, provided the work uses OEM-specified parts and practices. We document both. Where a repair touches CGI’s glass or frame warranty, we note the factory serial number and retain the parts invoice for your records. Call (786) 808-5792 if you need a warranty-position review before we start.
Usually. CGI maintains a five-year archive of custom color formulas and grid profiles. For older units, we cross-reference the original order code against current stock and can often source a compatible match from CGI’s remnant program or specify a close equivalent from our other manufacturer lines. We photograph the existing unit and send the match sample for your approval before ordering.
Replacement becomes necessary when the frame extrusion is structurally compromised - cracked corners, separated thermal breaks, or substrate corrosion that won’t hold a seal. Everything else is repairable: glazing, hardware, seals, and finishes. We diagnose at survey and tell you which category your opening falls into, with prices for both paths if the choice is borderline. Call (786) 808-5792 to schedule the survey.
CGI’s current custom fabrication schedule runs eight to fourteen weeks from approved shop drawings, depending on shape complexity and glass specification. We don’t quote faster than the factory can build. Rush options exist for some standard geometries at additional cost; we note these when available and never promise a delivery we cannot document.
Yes, for all replacements where the opening dimensions change or the product is impact-rated. We handle the permit application, schedule inspection, and provide the passed inspection documentation for your file. The permit cost is line-itemed in your written quote, not added later. Call (786) 808-5792 to confirm whether your specific opening triggers the permit requirement.
Written by Sonia Raman, Owner, Sightline Windows & Doors Three Lakes at Sightline Windows & Doors Three Lakes, serving Three Lakes and nearby areas.