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CGI Roof Replacement & Installation in Doral: What to Know First
CGI roof replacement and installation in Doral typically runs $2,800 to $7,400 depending on the model line, roof slope, and whether we’re reusing existing mounting hardware. We complete most single-roof CGI projects in two to four working days, and we’re upfront about whether the rooflight can be saved or the frame has to come out. Doral’s afternoon storms and the salt haze that drifts in from the coast beat on these units harder than people realize, so the honest answer is that the cheap fix often isn’t the right one. This page is for homeowners who own a CGI rooflight or roof glazing system and are trying to figure out what’s failing, what it costs to replace, and who they can trust to do it right. Call (386) 854-7948 and a live person answers.
How CGI Products Fail - and How We Fix Them
We see the same handful of failure points on CGI roof glazing across Doral, and most of them are traceable to how the unit was set or sealed on day one. Here’s what we find most often:
- CGI 4500 Series rooflights with warping at the frame corners. We see this on units installed before 2012, when the aluminum extrusion profile had a thinner corner key. Doral’s daily thermal expansion cycles, hot sun then hard rain, work the corner until the seal separates and you get a slow drip that shows up as a water stain on the ceiling below. The fix is pulling the unit, replacing the corner keys with the current reinforced design, and re-sealing with a two-part structural silicone rated for Miami-Dade wind loads.
- CGI 5500 Series roof skylights with condensation between the glass layers. This is the most common call we get in Doral, and it’s almost always a failed edge seal, not the glass itself. A rooflight on a south-facing slope bakes in the sun and the argon or krypton fill leaches out, then humidity finds its way in. The honest fix is a new insulated glass unit, not a “defogging” service. We order the replacement IGU from a fabrication partner who matches the original low-E coating and glass thickness, and we register the warranty paperwork in writing before the truck leaves your driveway.
- CGI Classic Line roof windows with seized operators and broken hinges. The salt air near the coast north of NW 58th Street eats at the hardware faster than the glass. We replace the operator with the OEM part when it’s still available from CGI, but for discontinued Classic Line units we use a direct-fit aftermarket hinge and operator kit that carries the same throw and load rating. A homeowner trying to force a corroded operator open is how you end up with a cracked frame, so we’d rather you call before it gets to that point.
- CGI Sentinel Series structural glass roofs with leaking at the transom junction. This one is a design pressure issue, not a defect. The Sentinel is a beautiful piece but the junction between the transom and the roof plane has to be flashed exactly right or Doral’s wind-driven rain finds the gap. We see a lot of units installed with generic flashing that doesn’t follow CGI’s published detail. The fix is re-flashing the junction per the CGI spec and applying an elastomeric weather seal, which we do on every Sentinel we touch.
- CGI 3500 Series acrylic dome units with crazing and yellowing. Doral’s UV load is brutal on acrylic. After eight to ten years, the dome starts to show hairline cracks and turns a murky yellow. You can replace just the dome if the curb and frame are still sound, and that’s the cheapest honest fix on this list. If the curb is also showing stress cracks, the whole assembly needs to come out and we’ll walk you through both numbers side by side before any work starts.
Our CGI Roof Replacement & Installation Process
The opening has to be right before the window can be, and that applies even more when the opening is above your living room and has to hold against a hurricane. Here’s how a CGI roof job goes with us in Doral:
- 1
The call. A live person answers at (386) 854-7948. You tell us the model and what you’re seeing, and we schedule a site visit that works for you, not the other way around.
- 2
The inspection. We get on the roof or into the attic and look at the frame, the curb, the flashing, the glass, and the seal, in that order. We measure the rough opening twice. We check for signs the original install was out of true, because that’s the root of most CGI failures we see in Doral.
- 3
Parts and product decision. We quote OEM parts when they’re current and available, and we show you a quality aftermarket option on paper when the line is discontinued or the OEM wait time is unreasonable. You see both prices. You decide. We don’t bury the choice in a change order later.
- 4
Replacement and installation. Our technicians come in uniform, on time, and they work around your schedule. We set the new unit or component, re-seal per CGI’s spec or the best practice for the vintage, and register both warranty layers in writing before the truck leaves the driveway.
- 5
The test. We check for leaks with a water test appropriate to the install, confirm the unit operates as it should, and walk you through what was done. If anything is not right, it stays on our schedule until it is.
- 6
The follow-up. You get a written work order lineup and a reminder that the Done Right Promise covers the work. No fine print that covers neither.
What CGI Roof Replacement & Installation Costs in Doral
Doral pricing depends on the series, the condition of the curb and flashing, and whether we’re doing a drop-in retrofit or a full curb-out replacement. Here’s what we tell homeowners to expect:
- Dome replacement only (CGI 3500 Series): $850 to $1,600 for the dome and installation, plus any curb patching.
- Full unit replacement, standard rooflight (CGI 4500 or Classic Line): $2,800 to $4,200, depending on size, glass package, and accessibility.
- Full unit replacement with new curb and flashing (CGI 5500 Series or larger skylight): $4,100 to $5,900. This includes removing the old curb, setting a properly flashed new one, and structural sealing.
- Sentinel Series structural glass roof repair or replacement: $4,800 to $7,400, with the final number driven by the number of glass panels and whether the transom junction has to be re-flashed.
What moves the price in Doral is roof access, single-story versus second-story work, and whether the rough opening was done correctly the first time. If the framing is out of true, that has to be corrected before the unit goes in, and we’ll tell you that on the first visit so there are no surprises. Call (386) 854-7948 and we’ll give you a line-item quote based on what’s actually on your roof.
Why Doral Homeowners Call TruePane Windows & Doors for CGI Work
We’re an independent CGI service provider, not a manufacturer-authorized shop, and that matters because we’re not under pressure to replace a unit when a repair is the honest fix. Dale Kessler grew up off NW 107th Avenue here in Doral, back when the area had more nurseries than subdivisions, and he learned the glazing trade frame first, glass second at Miami Lakes Educational Center. That’s the sequence our crews still follow on every opening, oversized or not. The Keystone Standard means both warranty layers are registered in writing, durations stated, before the truck leaves the driveway, and the Done Right Promise backs the work with no paperwork fights and no arguing. We also service PGT, CWS, ES Windows, and ECO Window Systems, so if your home has more than one brand on it, one call covers the work. A live person answers the phone 24 hours a day, 7 days a week.
FAQs
No, not when the work is done properly and the parts are appropriate for the unit. We’re an independent CGI service provider, so we follow the published CGI installation and sealing specifications, and we register the replacement IGU or unit warranty in writing before we leave. That registration is part of The Keystone Standard.
Yes, in most cases. We source replacement IGUs with the same low-E coating and glass tint as the adjacent units, and we match frame finishes on current models like the 4500 and 5500 Series. On discontinued lines where the factory finish is no longer available, we tell you that on the front end and show you the closest option on paper before we order anything. Call (386) 854-7948 and we’ll take a look.
Most single-unit CGI roof replacements take two to four working days from start to finish. The inspection and quote happen on the first visit, parts take a few days to source depending on the series, and the physical replacement is usually done in a single day if the curb is sound. If the curb and flashing have to be rebuilt, add another day.
It depends on the failure and the age of the unit. A failed seal or a corroded operator on a five-year-old CGI is usually a repair. A unit that’s been leaking long enough to rot the curb or warp the frame is a replacement. We’ll show you both numbers, side by side, and we won’t push the more expensive option if the cheaper repair gives you another five years.
Yes, when a permit is required by Doral building code, we pull it and the work is inspected and passed before we call the job done. A roof penetration is not something you want unpermitted, especially in Miami-Dade County. If the scope of the repair doesn’t trigger the code threshold, we’ll tell you that too.
Call TruePane Windows & Doors for CGI Roof Work in Doral
If your CGI rooflight or roof glazing is leaking, fogged, seized, or showing its age, call (386) 854-7948. A live person answers 24/7, we’ll set a site visit that works for you, and you’ll get a written line-item quote with no surprises. If the pane is not true, the job is not done, and we stand behind it in writing.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Doral 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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