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 Boynton Beach: What to Know First
As an independent CGI service provider in Boynton Beach, we measure, specify, and install CGI custom and geometric windows with written pricing delivered before any order is placed. Most custom CGI shapes - arched tops, trapezoids, oversized fixed picture units - run 4 to 6 weeks from measured survey to installation, though radius and curved configurations can stretch to 8 weeks depending on glass tempering schedules. We do not quote over the phone; Haven Clause 1 requires the measurement and the quote to be the same document, and for custom geometries they must be.
This page is for Boynton Beach homeowners who already own CGI windows and need custom replacements, new geometric openings in a renovation, or repairs to existing shaped units that are leaking, fogging, or operating poorly. Call (561) 421-3844 to schedule your measured survey.
How CGI Products Fail - and How We Fix Them
- Sparta series fixed geometric units: sealant degradation at the mitered frame joints. The Sparta line uses a mechanical corner key with a secondary wet seal that we see crack after 7 to 10 years in Boynton Beach’s salt air, particularly on east-facing elevations within a mile of the Intracoastal. Water intrusion starts at the bottom corner and wicks up the glazing stop. We pull the sash, clean to bare aluminum, and reseal with Dow 795 or SikaFlex 221 - never generic silicone, which is why our running list of failed caulk jobs keeps growing. Sonia checks every joint before the truck leaves.
- Impact-rated custom shapes: laminated glass delamination at the edge. CGI’s impact laminates in geometric configurations - especially trapezoids and triangles with acute angles - concentrate thermal stress at the narrowest glass edge. In Boynton Beach, where afternoon roofline temperatures hit 140°F, we see edge separation starting at year 6 on south and west exposures. We spec warm-edge spacer upgrades and verify the lite is fabricated with a minimum 3/4-inch bite into the frame; anything less and we reject the glass before it reaches your opening.
- Sentinel series operating geometric windows: hinge sag in arched casements. The Sentinel arched casement uses a proprietary hinge shoe that carries more load than the standard rectangular version because the sash weight is cantilevered. After 5 years of opening cycles, the shoe wears eccentrically and the sash drops, scraping the frame. We stock OEM hinge shoes for the 20-, 24-, and 30-degree arch configurations; aftermarket shoes exist but vary in the zinc alloy spec and we have documented three callbacks on non-OEM replacements.
- Oversized fixed picture units: thermal bowing causing frame-to-wall separation. CGI’s custom picture windows over 72 inches in either dimension develop thermal bow in Boynton Beach’s heat because the aluminum frame expands 1/8 inch per 10 feet of length, while the stucco or block substrate does not. The result is a gap at the fin or a cracked sealant bead. We do not just recaulk; we cut back the sealant, install a backer rod with proper joint width-to-depth ratio, and use a Class 25 sealant rated for 50 percent movement. The fix outlasts the original installation.
- Custom radius windows: glazing bead shrinkage and UV embrittlement. The flexible PVC glazing bead in CGI radius units is extruded to a tighter radius than standard, which pre-stresses the material. In Boynton Beach’s UV exposure, we see shrink-back at the 3 and 9 o’clock positions starting around year 8, compromising the water seal. We replace with OEM radius bead only; flat-profile bead forced into a radius will gap within two seasons, and we have pulled enough of those to know.
Our CGI Custom & Geometric Windows Process
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Measured survey. We arrive with a laser measure, digital level, and the template set for CGI’s current geometric catalog. You keep the survey document. Sonia’s rule: measure it right the first time and the install is already half done.
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Diagnostic photography. We document the existing opening, the frame condition, and any failure points with dated, geotagged photos. This becomes the evidence record under Haven Clause 4.
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Parts specification: OEM versus verified aftermarket. For hinge shoes, glazing bead, and corner keys, we default to OEM. For sealants and fasteners where the spec is published and testable, we use verified equivalents and note the manufacturer on your written quote. No substitutions happen without your initials.
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Fabrication order with written confirmation. We place the CGI factory order and provide you the confirmation number, expected ship date, and a fixed price that matches your survey document. Haven Clause 1: no surprises.
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Installation and live testing. We install, seal, and test every operable unit for air infiltration per ASTM E283 and water resistance per ASTM E547. Custom fixed units get a flood test at the sill.
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Photo record delivery and warranty registration. You receive the completed photo record, the 365-Day Done Right Promise documentation, and we register your CGI warranty with the factory using our installer certification.
Before
AfterWhat CGI Custom & Geometric Windows Costs in Boynton Beach
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Standard geometric fixed (trapezoid, triangle, octagon) | $890 - $1,450 per opening | Glass type (single laminate vs. insulated laminate), size, finish color |
| Arched or radius top, fixed | $1,200 - $2,100 per opening | Arch degree (20°, 24°, 30°, custom), impact rating, grid pattern |
| Oversized fixed picture, custom dimension | $1,800 - $3,400 per opening | Maximum dimension, glass thickness, lift requirements for install access |
| Geometric operating casement or awning | $1,450 - $2,600 per opening | Hardware finish, screen type, operator mechanism (manual vs. folding) |
| Seal repair or corner reseal, existing unit | $340 - $620 per opening | Access difficulty, scaffolding or lift needed, extent of water damage to surround |
These ranges reflect what we have written on actual Boynton Beach quotes in the past 18 months. Your measured survey will produce a fixed price that does not change. Call (561) 421-3844 to schedule - estimates are free, and we will review any competitor’s written estimate at no charge under our Free Second Opinion policy.
Why Boynton Beach Homeowners Call Sightline Windows & Doors Boynton Beach for CGI Work
We are independently owned and operated under the Haven Standard, not a franchise, and we have installed or repaired CGI products in Boynton Beach since 2014. Sonia Raman and our crew know the difference between a Sparta and a Sentinel frame profile without checking the stamp, and we carry the hinge shoe inventory that prevents an 8-week factory delay.
When CGI lead times stretch or a specific series discontinues, we specify from our other verified lines - PGT, CWS, ES Windows, ECO Window Systems - matched to the performance requirement, not pushed because it is in stock. Every technician is background-checked, uniformed, and identified by license number before arrival. The 365-Day Done Right Promise is stamped on every job, not offered as a courtesy. And the photo record you receive is the same documentation we keep - evidence, not marketing.
FAQs
No. As an independent CGI service provider, we install to CGI’s published installation requirements and register the warranty with the factory using our installer documentation. The warranty remains valid provided the product is installed per CGI’s specifications, which we follow and photograph. Call (561) 421-3844 if you have a specific warranty concern - we will review it against your serial number at no charge.
Sometimes. CGI has discontinued several custom extrusions since 2019, including the 2-inch frame depth used in some pre-2016 radius units. When the exact profile is unavailable, we fabricate a transition detail or specify the nearest current series with a written explanation of the sightline difference. We do not guess; the measured survey includes a profile tracing when needed. Call (561) 421-3844 to discuss your specific unit.
Repair is viable when the frame is structurally sound and the failure is isolated to sealant, hardware, or glazing bead - typically 60 percent of the calls we see in Boynton Beach. Replacement is necessary when the thermal break is compromised, the frame is corroded through at the weep, or the glass lite has failed and the unit is no longer impact-rated. We diagnose and document both paths with a written price for each before you decide. Call (561) 421-3844 for the survey.
Geometric glass must be cut, tempered or laminated, and in some cases heat-soaked to the specific shape, which cannot be done from stock sheets. CGI’s custom queue runs 4 to 6 weeks for standard geometries and 6 to 8 weeks for radius or compound curves. We place the order only after you approve the written quote, and we provide the factory confirmation number so you can track status directly. Call (561) 421-3844 to start the measured survey.
Yes, for all replacement installations that alter the opening or change the egress condition. Boynton Beach requires a building permit for window replacement when the unit is not a direct same-size swap, which is almost always the case with custom geometries. We pull the permit, schedule the inspection, and pass it - the cost is included in your written quote, not added later. Call (561) 421-3844 to confirm permit requirements for your specific project.
Written by Sonia Raman, Owner, Sightline Windows & Doors Boynton Beach at Sightline Windows & Doors Boynton Beach, serving Boynton Beach and nearby areas.