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 Port St. Lucie: What to Know First
CGI custom and geometric windows in Port St. Lucie run between $900 and $4,200 per opening depending on shape, glass package, and whether the frame needs rebuilding, with most curved or angled work completed in two to three weeks from measure to install. We’re an independent CGI service provider, not a factory branch, which means we diagnose the window you already own before we recommend replacing it. This page is for homeowners who have CGI windows with odd shapes, stress cracks, seal failures, or frames that no longer sit true. If you need a straight answer on whether that arched window can be saved, call (772) 362-3326.
How CGI Products Fail - and How We Fix Them
CGI builds a solid impact window, but custom and geometric shapes carry stress points that standard rectangles don’t. Here’s what we see most often on Port St. Lucie homes.
- Intercept spacer seal failure on Estates Series picture windows. The Estates line uses an aluminum Intercept spacer system, and on large fixed units, especially radius tops and half-rounds, the butyl seal at the corner bends starts to give after ten to fourteen years of Florida humidity. You’ll see fogging that comes and goes with the weather. The fix is an insulated glass unit replacement with a warm-edge spacer upgrade, done without pulling the frame if the track is still straight.
- Argon loss around geometric corners. Trapezoids and pentagons put uneven pressure on the IGU edge seal. When the argon escapes, the glass loses its thermal rating and you’ll feel heat radiating through a window that still looks fine. We test the glass surface temperature and replace the unit rather than letting it soldier on at full replacement cost.
- Sentinel Series casement sash misalignment. On CGI’s Sentinel casement windows with custom triple-pane glass, the added weight of a heavy geometric sash slowly pulls the hinge side down. The sash starts dragging on the sill at the latch corner. We reset the hinges and re-shim the frame, and if the sash was forced open for a year, we order the replacement hinge kit from CGI’s parts catalog.
- Frame racking on oversized openings. Port St. Lucie sits on sandy soil that shifts with the wet and dry seasons. A custom arched window spanning more than six feet in a stucco opening will flex as the wall settles, and the glass gets pulled out of square. We shim the frame back to level, re-anchor through the flange into the header, and re-seal the perimeter before the stress crack spreads to the glass.
- Weep hole clogging on radius bottom sills. Curved sills that were not pitched during the original install hold water. The weep holes clog with blown sand and the track rusts from the inside. We re-cut the weeps, re-pitch the sill with marine-grade shims, and treat the track with a corrosion inhibitor before it eats through the roller hardware.
Our CGI Custom & Geometric Windows Process
Dale Kessler grew up in the Tradition area of Port St. Lucie, and his father’s weekend habit of rehanging doors and resealing windows stuck. That’s the background our process comes from: measure twice, order once, everything after that is just following through.
- 1
Measure and template. We measure every opening twice with a digital level and a set of radius gauges. On geometric windows, we cut a plywood template and test-fit it in the opening before we ever order glass.
- 2
Diagnosis. We identify the failure first: seal, sash, frame, or glass. If the window can be repaired without replacing the IGU, we say so and give you a line-item quote for the repair alone.
- 3
Parts decision. For CGI warranty work, we use OEM parts and document everything so your warranty stays intact. For out-of-warranty repairs, we quote OEM and quality aftermarket side by side on paper, including lead times, so you make an informed call.
- 4
Removal and prep. We pull the old unit, clean the opening, repair any rotted wood or corroded track, and re-flash the rough opening before the new window goes in.
- 5
Install and seal. The new unit gets set, shimmed, leveled, and anchored according to CGI’s published installation detail for that series. Perimeter sealant goes on in one continuous bead, no gaps, no shortcuts.
- 6
Test and documentation. We operate every sash, check the weep function, verify the seal, and run a water test on the exterior. Both warranty layers get registered in writing before the truck leaves your driveway. That’s the Keystone Standard.
What CGI Custom & Geometric Windows Costs in Port St. Lucie
Here’s what we quote most often for CGI work in Port St. Lucie.
- Single geometric IGU replacement (half-round, trapezoid): $900 to $1,800 installed, depending on glass size and low-E coating.
- Custom arched or radius window replacement, including frame: $2,400 to $4,200 per opening, depending on span, shape complexity, and impact rating.
- Sentinel or Estates casement sash reset with new hinge kit: $350 to $650 per sash, labor included.
- Full oversized opening rebuild with new CGI custom window: $3,800 to $6,500 when the rough opening itself needs re-framing.
Shape is the biggest cost driver. A true circle or a compound curve requires a custom radius template, and the glass has to be cut, tempered, and laminated to the exact profile. Impact-rated geometric glass carries a premium over standard laminated because the interlayer has to be die-cut to the shape before lamination. The free estimate we give you is the number we stand behind. Call (772) 362-3326 to schedule it.
Why Port St. Lucie Homeowners Call TruePane Windows & Doors for CGI Work
We’ve been in this trade since 2008, and Dale Kessler has spent the better part of two decades fitting and glazing windows across St. Lucie County. Homeowners know us as the company that shows up with the right measurements the first time. Our background-checked, uniformed technicians know CGI’s product lines well enough to tell you when a repair makes sense and when a replacement is the honest answer. And if your opening is better served by a PGT, CWS, ES Windows, or ECO Window Systems product, we’ll quote it side by side and let you decide. Every job is covered by our Done Right Promise. If it’s not done right, we make it right. No paperwork, no arguing. That’s the standard we’ve kept since day one, and it’s the standard we’ll still be keeping in thirty years.
FAQs
No, not if the work is done according to CGI’s published installation details for that series. We document the entire process and register both warranty layers in writing before we leave. For in-warranty failures, we use OEM parts exclusively. Call (772) 362-3326 and we’ll check your warranty status before doing anything.
Most custom geometric glass takes two to three weeks from measure to install in Port St. Lucie. Tempered and laminated shapes add time because the interlayer has to be die-cut to your exact radius. If the existing frame is sound, we can replace just the insulated glass unit and cut that timeline roughly in half. Call (772) 362-3326 for a current lead time on your specific shape.
It depends on the failure. Seal fogging, argon loss, hinge sag, and weep issues are repairable. A stress crack that runs through the glass, a frame that has rotted through, or a sash that has been forced past its stops usually means replacement. We’ll tell you the cheaper honest answer either way, with the quote in writing before you commit.
Yes. As an independent CGI service provider, more than half our calls come from homeowners whose original installer is gone or won’t answer the phone. We measure, diagnose, and fix what’s there, regardless of who put it in. Call (772) 362-3326 and a live person will answer, 24 hours a day.
That’s a classic early seal failure on the Intercept spacer system used in CGI’s Estates Series. The corner bends on radius tops are the weak point, and as the butyl seal ages, humidity gets pulled into the air space overnight and burns off as the glass warms. Once it starts, it doesn’t self-correct. The fix is an IGU replacement with a warm-edge spacer. Call (772) 362-3326 for an exact quote, estimates are free.
If you have a CGI custom or geometric window in Port St. Lucie that’s fogged, cracked, sagging, or just not sitting true, call TruePane Windows & Doors at (772) 362-3326. A live person answers, the estimate is free, and the number we quote is the number you pay. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Port St. Lucie and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



Before
After
Before
After
Before
After