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 Miami: What to Know First
TruePane Windows & Doors provides independent CGI custom and geometric window service across Miami, from arched transoms in Coconut Grove to oversized trapezoid openings in Pinecrest. Most CGI custom window jobs run one to three weeks from measure to install, depending on whether the unit is a standard replacement or a true custom fabrication. Pricing is straightforward: we quote the work on paper before any glass is ordered, and the number on the estimate is the number on the bill. If you own a CGI window that’s fogged, binding, or leaking, call (561) 489-4036 and a live person answers.

This page is written for Miami homeowners who bought CGI windows expecting hurricane-rated performance, and now have a custom shape or geometric unit that isn’t holding up. You’ll find straight answers on failure modes, parts, cost, and what a proper repair actually looks like.
How CGI Products Fail - and How We Fix Them
CGI builds a solid impact window. But custom and geometric units live under different stresses than standard rectangular sashes, and Miami’s climate doesn’t forgive shortcuts. Here’s what we see in the field, week after week:
- Corner seal blowout on radius and arch units. CGI’s custom radius windows, particularly older Estate Collection units, seal the curved glass with a bent-edge IG (insulated glass) spacer. After seven to ten years of Miami heat cycling, that spacer can kink at the apex of the arch, breaking the seal and leaving a fogged crescent that no amount of defogging fixes. We replace the IG unit with a fresh bent-edge spacer, seat the new glass on a clean glazing bed, and the fog stays gone.
- Binding sashes on trapezoid and parallelogram windows. Geometric shapes put hinge loads in places a rectangular sash never tests. On CGI’s Custom Fixed and operable geometric units, we regularly see the lower hinge screw pack strip out of the frame, letting the sash drop a quarter inch so it drags on the sill track. The fix is drilling out the stripped hole, setting a stainless threaded insert, and remounting the hinge with a new fastener, not just cranking the old screw back in and hoping.
- Water intrusion where custom shapes meet stucco. In Brickell and Key Biscayne, where wind-driven rain comes sideways off the bay, custom CGI windows fail most often at the perimeter flashing, not the glass. The original installers frequently lap the flashing tape the wrong direction on angled openings, and water walks right under it. We pull the trim, reflash the rough opening so each seam sheds water downward, and reset the window on a properly sloped sill pan.
- Failed glazing bead on large fixed geometric units. CGI’s larger custom fixed windows use a rigid vinyl glazing bead. After enough South Florida sun, that bead gets brittle and cracks at the mitered corners of angled openings. What starts as a hairline crack becomes a path for air and water. We replace the bead with a fresh, UV-stabilized extrusion and re-bed the glass in a high-grade silicone that actually stays put.
- Condensation between panes on oversized openings. Big custom CGI windows in two-story living rooms get direct afternoon sun and a lot of thermal stress. The interstitial gap between the insulated panes fails first at the top edge where heat pools. We see this most on Windows by CGI’s Estate and Elegance lines. The unit needs a new IG panel sized to the exact opening, ordered with a matching Low-E coating so the replacement doesn’t look different from the originals.
Our CGI Custom & Geometric Windows Process
Here’s how a CGI job runs at TruePane, from the first call to the final walkthrough:
- 1
Call and schedule. A live person answers (561) 489-4036, day or night. We’ll ask about the window’s location, shape, and the symptom you’re seeing, then set a time that works.
- 2
Measure and diagnose. A background-checked, uniformed tech measures the opening twice. Dale Kessler reads every rough opening before ordering glass, because a custom geometric window that’s off by even an eighth inch won’t seat right. We identify the exact failure rather than guessing at it.
- 3
Parts decision on paper. We lay out OEM versus quality aftermarket options side by side, with prices and lead times. For CGI custom shapes, OEM glass often makes sense to keep the look consistent. For hardware like hinges and bead, a well-made aftermarket part can match or beat OEM at a better price. You decide with the facts in front of you.
- 4
Order and schedule the install. We order the exact glass or parts needed, tell you the real lead time, and book the install for a specific day. We’ll be there when we say.
- 5
Install and test. We remove the old glass or hardware, prep the opening, set the new unit level and true, and seal it against Miami weather. Each window gets an operational check before we clean up.
- 6
Walkthrough and warranty paperwork. We register both manufacturer warranty layers in writing before the truck leaves the driveway. You get the durations stated clearly, plus our 90-Day Done Right Promise: if it’s not done right, we make it right. No paperwork fights, no arguing.
What CGI Custom & Geometric Windows Costs in Miami
Fair pricing for CGI custom and geometric window work in Miami depends on the unit’s size, shape, and what failed. Here’s a straight read on typical ranges we quote:
- IG glass replacement, standard arch or radius (up to 20 sq ft): $650-$1,150 per unit, depending on glass type and Low-E coating match
- IG replacement, oversized or complex geometric (trapezoid, parallelogram, 20+ sq ft): $1,200-$2,400 per unit
- Hinge and hardware rebuild on operable geometric window: $180-$420 per sash
- Perimeter reflash and reseal, custom-shaped window: $350-$800 per opening, depending on access and stucco work
- Full custom window replacement (CGI or equivalent impact-rated): $1,800-$5,000+ per unit, driven by size, shape, and glass package
What moves the price: tempered versus laminated glass, Low-E coatings, whether the shape needs true custom fabrication or a stock unit, and how much stucco or trim work the opening requires. Every estimate is written, line by line, with no surprise add-ons. Call (561) 489-4036 and we’ll schedule a free estimate, no obligation.

Why Miami Homeowners Call TruePane Windows & Doors for CGI Work
We’re an independent CGI service provider, not a manufacturer arm. That means we fix what’s actually wrong instead of steering you toward a full replacement when a rebuild makes more sense. Our techs have worked on more than a dozen manufacturer lines, including PGT, CWS, ES Windows, and ECO Window Systems, so when a CGI custom window can’t be saved economically, we’ll tell you, and we’ll quote alternatives honestly. None of this comes with fine-print games. Every job carries the 90-Day Done Right Promise and The Keystone Standard: both warranty layers registered in writing before we leave your driveway. TruePane has served local communities for over 42 years, and Dale Kessler runs the company on one rule: if the pane is not true, the job is not done.
FAQs
In most cases we can replace just the insulated glass panel, not the entire window. Fogging means the seal between the panes has failed, and the fix is a new IG unit sized to the existing frame. Call (561) 489-4036 for a free estimate, and we’ll tell you whether your specific window is a candidate for glass replacement or if the frame itself needs work.
We do not alter the frame’s structural integrity or remove the CGI label, which is what matters for warranty coverage. We use manufacturer-approved glass specifications and installation methods. If a replacement part is warranted, we register that layer in writing as part of The Keystone Standard.
Common CGI hardware like hinges, bead, and weatherstripping is often available within a week through our local suppliers. Custom glass panels, especially for geometric or oversized shapes, typically run two to three weeks from order to install. We’ll give you the honest lead time before you commit to anything.
The deciding factors are frame condition, glass type, and whether the original install was sealed properly. If the frame is sound and the failure is in the glass or hardware, a rebuild usually makes sense and costs far less than a full replacement. We’ll show you the condition of your frame and explain your options in plain terms.
Most glass replacements and hardware rebuilds run two to four hours on site, and we complete most jobs in a single visit. Complex geometric units with stucco work may run longer, but you’ll know the schedule before we start. Call (561) 489-4036 to schedule your free estimate.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Miami 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.










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