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 Lighthouse Point: What to Know First
As an independent CGI service provider, we install and replace CGI custom and geometric windows across Lighthouse Point with written pricing delivered before any work begins. Most custom CGI openings in this market run $2,800-$6,400 installed, with shaped and oversized units toward the upper end. Our measured survey and your written quote are the same document, no exceptions.
This page is for Lighthouse Point homeowners who already own CGI products or are specifying them for a custom opening, arched transom, or geometric feature window, and need a technician who knows the difference between a Series 375 fixed geometric and a Series 375 operable arch. Call (754) 600-8907 to schedule your free measured survey.
How CGI Products Fail - and How We Fix Them
- Series 375 geometric fixed units: seal failure at the mitered corner joints. The thermal break in these aluminum frames separates at the corner keys after repeated expansion cycles in Lighthouse Point’s salt-air environment. We see this most often on canal-front homes east of Federal Highway, where morning sun hits the glass before the frame has warmed through. We remove the sash, re-key the corner with OEM hardware, and re-glaze with silicone compatible to CGI’s original spec. The fix outlasts caulk-and-hope by years.
- Series 375 operable arches: hinge-side sag on top-hung units. The weight of laminated impact glass in a radius-top venting unit gradually distorts the hinge barrel. Homeowners notice the sash dropping on the lock side, then weatherstripping compression fails. We replace the hinge set with OEM-grade stainless hardware, shim the frame plumb, and verify the sightline gap with feeler gauges. No guesswork.
- Custom oversized fixed picture units: glazing bead pop from negative pressure events. Large single-pane CGI picture windows in Lighthouse Point see sustained wind loads during storm season that flex the frame enough to work the glazing bead loose. We re-seat with CGI’s specified bead profile, add mechanical retention where the span exceeds 48 inches, and document the frame deflection reading for your record.
- Series 301 single-hung with custom geometric tops: balance spring fatigue in salt-corroded housings. The balance tube sits in the jamb where condensation collects; in Lighthouse Point’s humidity, the zinc coating degrades in 6-8 years versus 12+ inland. We replace with OEM balance assemblies only. Aftermarket balances with generic tension ratings never match the sash weight of a custom geometric lite, and the sash drifts within a season.
- Custom radius windows: insulated glass unit (IGU) seal breach from thermal stress. The curved lite in a CGI radius window develops perimeter fog when the edge seal sees differential expansion between the bent glass and the aluminum spacer. We source the IGU through CGI’s approved fabricator network, never field-build, because the butyl primary seal and desiccant fill must match the original dew-point spec for Lighthouse Point’s 75°F mean annual temperature.
Our CGI Custom & Geometric Windows Process
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Measured survey you keep. We arrive with laser measures, moisture meters, and a camera. You get the dimension sheet and frame-condition notes before we leave. Measure twice, write it down, then we talk price.
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Parts diagnosis: OEM or verified equivalent. For CGI custom and geometric units, we check availability against current production runs. Discontinued profiles move to our verified aftermarket network, never generic. We note the source on your written quote.
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Written scope and price. Haven Clause 1: the quote matches the survey exactly. No line item appears without a part number or labor description. You approve in writing before we order.
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Installation by verified crew. Haven Clause 3: the technician who arrives carries a state license number matching our records, in uniform, with the photo ID you were sent by text that morning.
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Testing and documentation. Every CGI unit gets operability cycling, lock engagement verification, and a sightline check. We photograph finished conditions and upload to your job record. The 365-Day Done Right Promise attaches automatically.
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Final walkthrough with the same document. The measured survey, the written quote, and the completion checklist are compared in front of you. No surprises. Haven Clause 5.
Before
AfterWhat CGI Custom & Geometric Windows Costs in Lighthouse Point
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| CGI Series 375 geometric fixed, standard shapes (circle top, quarter-round, octagon) | $2,800-$4,200 | Lite size, impact rating, finish (bronze anodized vs. white paint) |
| CGI Series 375 operable arch or radius top | $3,600-$5,800 | Hardware grade, screen type, custom grid pattern |
| CGI custom oversized fixed picture (single lite over 48″ span) | $4,400-$6,400 | Glass thickness, laminated vs. monolithic, crane access |
| IGU replacement in existing CGI geometric frame | $890-$1,650 | Curved vs. flat, low-E coating match, argon fill |
| Balance, hinge, or hardware repair on CGI custom unit | $340-$780 | Part availability, frame access difficulty |
These are 2024-2025 field prices from completed Lighthouse Point jobs, not estimates pulled from a catalog. Your opening may differ. Call (754) 600-8907 for an exact quote. Estimates are free, and we will review any competitor’s written estimate at no charge.
Why Lighthouse Point Homeowners Call Sightline Windows & Doors Lighthouse Point for CGI Work
We are independently owned and operated under the Haven Standard, not a franchise, and we have completed installations along the canal-front properties near the Lighthouse Point Marina where salt air and storm exposure make product selection genuinely consequential. Sonia Raman grew up in Miami, studied building construction technology at Miami Dade College, and has spent the better part of two decades measuring and fitting windows across South Florida. Her crew knows CGI’s frame profiles, glazing specs, and warranty requirements from field work, not from a distributor slide deck.
If CGI lead times stretch or a profile discontinues, we specify from PGT, CWS, ES Windows, or ECO Window Systems by performance tier and price range, not by margin. The 365-Day Done Right Promise covers every job. Calls are answered by a live person, 24/7. The technician who arrives is the person on the record.
FAQs
No, provided the work uses OEM or manufacturer-approved parts and follows CGI’s installation guidelines. We document part numbers and procedures so your warranty file stays clean. Call (754) 600-8907 if you need a copy of our documentation standards.
Current CGI production lead times for custom shapes run 8-14 weeks from approved shop drawings, with radius and oversized units toward the longer end. We submit drawings within 48 hours of your approved quote and track production weekly. Call (754) 600-8907 for current availability.
We repair when the frame is structurally sound and the IGU, hardware, or seal can be sourced to spec. Full replacement becomes necessary when the frame is distorted, the profile is discontinued, or the cost of repair approaches 60% of replacement. We state this in writing on your quote. Call (754) 600-8907 for a free assessment.
We stock common CGI hardware, glazing beads, and seal kits for Series 301 and 375 units. Custom glass and frame extrusions are ordered to your opening’s spec. We never substitute “close enough” inventory to speed a job. Call (754) 600-8907 to check availability for your specific unit.
No. Haven Clause 1 means the written quote and the measured survey are the same document. The only price change is if you add scope in writing. We have held to this since 2012. Call (754) 600-8907 to schedule your free estimate.
Written by Sonia Raman, Owner, Sightline Windows & Doors Lighthouse Point at Sightline Windows & Doors Lighthouse Point, serving Lighthouse Point and nearby areas.