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CGI Custom & Geometric Windows in Miami Beach: What to Know First
We install, service, and replace CGI custom and geometric windows throughout Miami Beach, including arched, radius, trapezoid, and oversized impact openings. Most custom-shaped CGI jobs run two to four weeks from template to installation, depending on the profile and glass package. As an independent CGI service provider, we give you straight pricing on real CGI product work, no markups hidden behind vague line items, and every quote is free.
If you own a CGI custom window that’s fogged, leaking, or failed a post-storm inspection, or you’re building an opening that needs a true geometric impact window, this page is for you. Call (863) 656-0462 and you’ll get a live person, not a phone tree.
How CGI Products Fail - and How We Fix Them
- Custom radius units developing seal failure along the curved glass edge. CGI’s bent-glass radius windows, common in Miami Beach condos and waterfront homes, carry stress at the apex of the curve. We see the inner laminate begin to haze or cloud three to seven years in, especially on east-facing elevations where salt air and morning sun hit hardest. The fix is remaking the glass unit to the original radius template, not caulking over the failure. We template on site, order the exact radius IGU, and reset the sash.
- Arched transom frames bowing under their own weight. CGI’s larger arched picture windows in the Estate Collection and custom commercial storefront lines occasionally develop a subtle frame deflection at the crown. We correct this by reinforcing the mounting flange and re-shimming to load path, rather than replacing the whole frame, which saves thousands on a job that looks catastrophic at first glance.
- Trapezoid and parallelogram sashes binding after settling. Miami Beach sits on sand and reclaimed land, and buildings move. A geometric CGI window that operated smoothly five years ago may now bind at one corner. The problem is usually the frame racked out of square, not the hardware. We reset the unit with structural shims and replace worn hinge tracks with CGI-compatible parts so the sash travels clean again.
- Custom mullion joints leaking at the intersection. When two or more CGI windows are mulled into a single arched or geometric assembly, the joint seal is the first thing to go in a coastal environment. We remove the exterior mull cover, replace the sealant with a marine-grade product rated for continuous salt exposure, and reflash the joint. This is a Miami Beach-specific reality: the same seal that holds fine inland fails within a few hurricane seasons here.
- Impact glass with a fine crack propagating from a corner. CGI’s laminated impact glass is strong, but a stress crack can start at a sharp corner cut and travel slowly. It often goes unnoticed until a hot afternoon expands the glass and the crack suddenly lengthens. We replace the IGU with a new CGI-compatible laminated unit, and if your model is still in production, we source from CGI’s supply chain to keep the warranty intact.
Our CGI Custom & Geometric Windows Process
- 1
Call and talk to a real person. You reach us at (863) 656-0462, day or night. We ask what you’re seeing, what the window is doing, and when it started.
- 2
On-site evaluation and measurement. We come out, inspect the unit in place, and document the exact dimensions, angles, and radius of your opening. For custom shapes, we build a physical template on site, not just a digital scan, because a sixteenth of an inch matters on a curved jamb.
- 3
Parts decision. If your CGI model is still in production, we quote OEM glass and hardware. If it’s discontinued, we tell you honestly and source a quality compatible unit that matches the original performance spec. No quiet substitutions.
- 4
Fabrication and prep. The new IGU or full unit is ordered to our template. We confirm lead time before you approve anything. Nothing gets ordered without your sign-off on price and schedule.
- 5
Installation and testing. Our background-checked, uniformed crew removes the old unit, installs the new one, and tests every function: lock engagement, seal continuity, drainage, and impact rating documentation where applicable.
- 6
The 36500-Day Done Right Promise. If something isn’t right, we come back and make it right. Ed Winslow’s name is on the work, and that’s not a line, it’s a commitment we’ve honored since 2011.
What CGI Custom & Geometric Windows Costs in Miami Beach
Custom CGI window work in Miami Beach varies by shape, size, and whether we’re repairing or replacing. Simple geometric windows like fixed trapezoids or small arches typically fall in a lower range, while large radius units with bent impact glass and custom mullion assemblies run significantly higher. Full custom replacements on oversized openings can reach into the tens of thousands when structural reinforcement and crane access are required. Here’s what we generally see:
- Glass-only replacement on a small geometric CGI unit: $800 to $1,500 installed
- Full sash replacement for an arched CGI window: $1,200 to $2,800 installed
- Mullion reseal and reflash on a mulled geometric assembly: $600 to $1,200 per joint
- New custom CGI geometric impact window, mid-size: $2,500 to $6,000 installed
- Large radius or oversized custom CGI unit, full replacement: $6,000 to $15,000 or more, depending on glass package and access
What moves the price most is whether the existing frame can be saved, whether the glass package includes low-E or tinted laminates, and whether the opening requires a crane or lift. We give you a written, line-item quote before any work starts, and there are no change orders unless you ask for something new. Seniors and veterans get a permanent 10% discount on every job. Call (863) 656-0462 for your free estimate.
Why Miami Beach Homeowners Call Winslow Windows & Doors for CGI Work
Ed Winslow grew up in Miami and has spent the better part of three decades learning what the South Florida climate does to a poorly installed window. He studied Building Construction Technology at Miami Dade College, spent years in the field, and has worked Miami Beach long enough to know which buildings near the Faena District have original CGI installs and which have been retrofitted, sometimes badly. My name is on every job we do. That keeps me honest.
We’ve been locally owned and owner-operated since 2011, with a published address and license number. We answer our own phone, 24/7. Every tech is background-checked and in uniform before they step on your property. And while CGI is the focus of this page, we also install and service PGT, CWS, ES Windows, and ECO Window Systems, so if your home has a mix of brands, one call covers all of it. The 36500-Day Done Right Promise means we stand behind the work for the life of the home. You won’t get that from a national chain.
FAQs
No, not when the work is done correctly with compatible parts. As an independent CGI service provider, we follow the same installation and component standards the manufacturer requires, and when your model is still in production we source OEM glass and hardware. If your window is under warranty, we’ll help you document the work so your claim stays valid. Call (863) 656-0462 and we’ll walk you through what your specific warranty covers.
Yes. We template the opening on site, measure the exact radius or angle profile, and match the glass package, including tint, low-E coating, and laminate thickness. For discontinued CGI lines, we source a compatible unit that matches the original performance spec and visible appearance. The goal is a window that looks like it was always there. Call us for a free on-site evaluation.
From template to completed install, most custom CGI window replacements in Miami Beach take two to four weeks. The variable is fabrication time, which depends on the glass package and whether the unit is radius or flat geometric. We give you a written schedule before we order anything, and we don’t start until you approve both price and timeline. Call (863) 656-0462 for an exact lead time on your specific window.
It depends on what failed. A clouded IGU or worn hinge can usually be repaired for a fraction of replacement cost, and we’ll tell you if that’s the honest answer. If the frame is racked, corroded, or the glass package no longer meets current Miami Beach wind-load codes, replacement is the right call. We’ll show you the evidence either way before you spend a dime. Estimates are free.
Yes, and we handle them carefully. Oversized CGI openings, like full-height arched windows or mulled geometric walls, require structural reinforcement, precise load-path shimming, and often a lift or crane for installation. We’ve done these jobs up and down Miami Beach, from older condos to single-family homes off the boulevard. Call (863) 656-0462 and we’ll come out, measure, and give you a straight quote.
If your CGI custom or geometric window isn’t doing what it should, call Winslow Windows & Doors at (863) 656-0462 for a free estimate. Ed’s name is on the door, and on every job we do. The one down the road.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Miami Beach and nearby areas.
Six Reasons Homeowners Choose Winslow 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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