Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Before
After
Before
After
Before
AfterCGI Custom & Geometric Windows in Boca Raton: What to Know First
As an independent CGI service provider, Sightline Windows & Doors Boca Raton measures, orders, and installs CGI custom and geometric windows across the city, with typical lead times of 8-14 weeks for custom-shaped units from CGI’s factory in Hialeah. We write the price before we order glass, and that written quote is the final invoice. If you’re in a Boca Raton home with an arched, round-top, or geometric CGI window that leaks, fogs, or no longer closes square, this page is for you. Call (561) 200-8592 to schedule your free measured survey.
How CGI Products Fail - and How We Fix Them
- Series 375 fixed geometric units with seal decompression. The 375’s dual-pane IGUs in arched and round-top configurations carry a heavier glass load than standard rectangles. In Boca Raton’s salt-air environment, the bottom rail seal on fixed geometric shapes compresses asymmetrically, drawing moisture through the glazing pocket. We replace with OEM IGU assemblies and reset the glazing bed with backer rod and structural silicone rated for Florida exposure.
- Series 550 impact-rated custom shapes with hinge fatigue. The 550’s continuous hinge on tall arched casements carries 40-60 percent more dead load than rectangular equivalents. After seven to ten years in Boca Raton, the hinge barrel elongates and the sash drops, scraping the frame. We spec OEM hinge kits with upgraded stainless barrels, never field-bent retrofits, and reset the sash to factory sightline tolerances.
- Series 250 geometric vinyl with thermal bowing. Dark-colored 250 series custom shapes in west-facing Boca Raton elevations absorb enough heat to bow the frame, breaking the corner weld on radius-top units. We document the thermal stress with infrared frame readings, then recommend either a lighter exterior color, a solar-control glass upgrade, or migration to Series 375 aluminum depending on the opening size.
- Custom CGI radius windows with weep blockage. The radius sill profile on CGI’s custom shapes has a smaller weep channel cross-section than standard sills. Boca Raton’s driving rain and leaf debris clog these channels in two to four years, forcing water into the wall. We clear and ream the weeps, install insect-resistant weep covers, and slope the sill pan per CGI’s updated installation manual - not the original spec, which had a flat drainage plane.
- Oversized CGI custom units with structural deflection. Custom shapes over 60 united inches in Boca Raton’s wind-borne debris zone require impact-rated laminated glass that weighs 8-12 pounds per square foot. The dead load deflects the header in remodel openings originally built for lighter single-pane units. We sister the header or install a steel tube before the window goes in, because shimming after installation voids the CGI warranty and cracks the IGU within eighteen months.
Our CGI Custom & Geometric Windows Process
- 1
Measured survey. Sonia Raman or a verified crew member arrives with a printed license number, measures the rough opening in three places, and records frame squareness, plumb, and header condition. You keep the survey sheet.
- 2
Diagnostics and documentation. We photograph the existing unit, note the series and glass package from the sash label, and test for air infiltration with a smoke pencil. If the label is missing, we cross-reference our installation log - we keep a running record of every unit by brand, glass package, U-factor, and date.
- 3
Parts decision. OEM CGI parts for custom shapes ship from Hialeah in 6-10 business days. For discontinued series, we source quality aftermarket equivalents that meet the original performance spec and document the substitution in writing. We never install a part we cannot warranty.
- 4
Installation or repair. The crew works to CGI’s published installation manual, not field shortcuts. For new custom shapes, we verify the unit against the shop drawing before the truck leaves our warehouse.
- 5
Testing and photo record. We operate every moving sash, check weep drainage with a water test, and photograph the completed installation. The photo record and written scope are emailed to you before we leave.
- 6
365-Day Done Right Promise. Under Haven Clause 5 (No Surprises), if anything in the installation or repair fails to perform as written, we return and make it right. The promise is stamped on your invoice, not offered verbally.
BeforeAfterWhat CGI Custom & Geometric Windows Costs in Boca Raton
These are the price ranges we write on our surveys for typical CGI custom and geometric work in Boca Raton. The number you receive is the number on the final invoice.
| Service | Typical Range | What Moves the Price |
|---|---|---|
| CGI custom shape IGU replacement (fixed) | $680 - $1,400 | Glass size, impact rating, low-E coating |
| CGI geometric sash and frame replacement | $1,800 - $3,600 | Series, dimensions, impact rating, finish |
| CGI arched or radius-top new installation | $2,400 - $5,200 | Opening size, header work, impact glass |
| CGI custom shape hardware repair (hinge, lock, operator) | $240 - $580 | Part availability, access difficulty |
| Structural header reinforcement for oversized unit | $800 - $2,000 | Span, load calculation, finish carpentry |
Every estimate includes the measured survey, written scope, and photo record at no additional charge. If you have a written estimate from another contractor, we review it free under our Second Opinion policy. Call (561) 200-8592 for your written quote.
Why Boca Raton Homeowners Call Sightline Windows & Doors Boca Raton for CGI Work
We’ve installed and serviced CGI products in Boca Raton since 2012, including a run of impact-rated sliding door replacements in the Broken Sound neighborhood where the original builder spec’d custom-height units that failed at the header. Sonia Raman learned the glazing trade at Los Angeles Trade-Technical College and has spent the better part of two decades measuring openings across South Florida. Her crew knows the difference between a Series 250 and Series 550 failure pattern before the ladder comes off the truck.
We also specify PGT, CWS, ES Windows, and ECO Window Systems - so if a CGI custom shape is discontinued or a different manufacturer’s lead time better serves your project, we tell you directly. No manufacturer loyalty that isn’t earned by the opening.
Haven Clause 1 (Have it in writing) means the price is fixed before work starts. Haven Clause 3 (Verified Crews) means the technician at your door is background-checked, uniformed, and identified by license number. Haven Clause 4 (Evidence on every job) means you get the photo record and the written warranty, not a handshake.
FAQs
No - CGI’s residential warranty covers manufacturing defects regardless of who installs or services the unit, provided the work follows CGI’s published installation guidelines. We work to those guidelines and document our compliance. If a claim arises, you have the photo record and written scope we provided. Call (561) 200-8592 if you need warranty documentation for an existing unit.
Standard lead time from CGI’s Hialeah facility is 8-14 weeks for custom shapes, with radius-top and true-arch units at the longer end. We do not quote shorter lead times to win the job. If your timeline is fixed, we discuss PGT or CWS equivalents with comparable performance and potentially faster turnaround. Call (561) 200-8592 to review options.
Sometimes. CGI has discontinued several geometric profiles since 2018, including certain radius-top vinyl configurations. We maintain a log of discontinued series and their closest living equivalents. When an exact match is impossible, we provide the alternative’s sightline dimensions, frame depth, and performance ratings in writing so you can compare before ordering. Call (561) 200-8592 to check your series status.
Repair the IGU if the frame is square, the hardware operates smoothly, and the frame shows no thermal bowing or salt corrosion. Replace the full unit if the frame is deflected, the series is discontinued and parts are unavailable, or if you’re already planning to upgrade to impact-rated glass. We measure both scenarios and write prices for each. Call (561) 200-8592 for a comparison estimate.
Because “Measure it twice, write it down, then we can talk price.” Custom geometric windows are not returnable to the manufacturer. A rough-opening measurement taken from the interior drywall can miss header deflection or out-of-square conditions that add $800-$2,000 in structural work. Our survey takes twenty minutes and costs nothing. The written quote you receive is based on what we found, not what we guessed. Call (561) 200-8592 to schedule yours.
Written by Sonia Raman, Owner, Sightline Windows & Doors Boca Raton at Sightline Windows & Doors Boca Raton, serving Boca Raton and nearby areas.