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CGI Window Replacement: The Port St. Lucie Owner’s Guide
CGI window replacement in Port St. Lucie typically runs $850 to $2,400 per window installed, depending on the series, size, and whether we’re replacing the sash, the glass package, or the full frame. We stock common CGI parts on the truck and can swap most failed units in a single visit. Most homeowners discover the problem the same way: a window that won’t lock, a sash that drags against the frame, or glass that fogs between the panes after a storm season. The salt air and summer humidity along the Treasure Coast are hard on window hardware, and CGI’s impact-rated units are no exception.
TruePane Windows & Doors is an independent installer and service provider. We are not a CGI factory outlet, and we don’t pretend to be. What we are is a St. Lucie County shop that has fitted and repaired CGI products for years, so we know the quirks of these windows the way a mechanic knows a specific engine.
Which CGI Models This Applies To
We replace and service parts across the most common CGI lines installed in Port St. Lucie homes: the Estate Collection, Targa Series, and the older 400 and 500 series units that went into a lot of St. Lucie West and Tradition builds in the 1990s and early 2000s. If you’re not sure what you have, check the metal spacer between the glass panes for a laser-etched label, or look for a sticker on the top of the sash frame. The label will show the series name and a manufacturing code, and that code tells us the glass package, the frame extrusion, and the hardware generation the window shipped with.
CGI changed its roller and balance hardware between generations, and that’s the gotcha most people miss. A roller assembly from a later Estate unit will not seat correctly in an older 400 series track, even if the wheel diameter looks close. We measure the roller housing, not just the wheel, before we quote the part. For glass replacement, we always recommend OEM glass packages for impact-rated units. Aftermarket glass can be fine for interior windows, but on a CGI unit rated for windborne debris, the glass and the frame are tested as a system. Mixing an aftermarket lite into an OEM frame voids the manufacturer’s rating and can put your home’s windstorm coverage in question.
Signs Your CGI Window Replacement Is Failing
- Fog or condensation between the glass panes. The seal on the insulated glass unit (IGU) has failed, and Florida humidity has gotten inside. Once the seal goes, the argon or krypton gas escapes, the glass loses insulating performance, and the only real fix is replacing the IGU or the sash.
- The sash drags or binds when you open or close it. CGI roller housings wear at different rates on the coastal side of the house. The housing itself deforms from years of salt air, and the wheel stops rolling properly. Lubrication won’t save a worn housing; it needs to be swapped.
- The window won’t lock cleanly, or the lock lever feels loose. The multipoint lock mechanism inside a CGI sash relies on several hook points engaging at once. When the sash drops a few millimeters from worn rollers, those hooks miss their keepers, and the lock feels sloppy. That’s a roller or alignment issue, not just a lock handle problem.
- Water streaks or staining on the interior wall below the window. The weep holes at the bottom of the CGI frame can clog with sand, salt, and insect debris over time. Once water can’t drain, it finds another path, and that path is usually into the wall cavity. We clean the weeps and check the sill flashing when we do any replacement on a coastal home.
- Visible cracks or chips in the outer lite of an impact-rated unit. On a standard window, a chip is cosmetic. On a CGI impact unit, a chip in the outer lite means the laminated glass has already absorbed a hit, and its structural integrity may be compromised. The next impact could be the one that matters.
Replacement Cost & What’s Included
Here’s what Port St. Lucie homeowners should expect to pay for CGI window replacement through us, including labor:
| Job Scope | Typical Installed Price |
|---|---|
| Glass package (IGU) replacement only | $450 - $950 per window |
| Sash replacement (glass + frame) | $700 - $1,400 per window |
| Full window replacement (frame, sash, glass) | $1,200 - $2,400 per window |
| Hardware-only repair (rollers, locks, balances) | $90 - $300 per window |
The range depends on the series, the size of the unit, and whether we’re matching existing trim or replacing a florist’s bay setup on an older 400 series. Every quote we give is written, line-itemed, and fixed. The price on the paper is the price on the bill. Parts and labor are itemized, and the workmanship is covered by our Done Right Promise. Both manufacturer warranty layers on any new CGI part get registered in writing before our truck leaves your driveway.
DIY or Call Us?
If the problem is a loose lock lever or a dirty track, you can clean the weeps and the track yourself with a vacuum and a soft brush. That’s routine maintenance, and it’s worth doing once a year in Port St. Lucie with all the sand and salt in the air. Beyond that, CGI window replacement gets involved fast. Removing an impact-rated sash without the right support risks dropping a 60 to 80 pound glass panel. Releasing the tension on a balance spring without the proper tool can send parts flying. And if the IGU is broken, you’re handling laminated glass that has already been compromised. Dale Kessler has spent the better part of two decades fitting and glazing windows across St. Lucie County, and the rule holds: measure twice, order once, and everything after that is just following through. Call (772) 362-3326 and we’ll send a technician who measures, quotes, and usually completes the job in one visit.
FAQs
A properly installed CGI window in Port St. Lucie typically lasts 15 to 25 years before the seals or hardware wear out. Homes closer to the St. Lucie River or the ocean tend to see seal failures on the shorter end of that range because constant salt exposure accelerates gasket and sealant degradation. Call (772) 362-3326 and we’ll inspect your units and tell you honestly where they are in that lifespan.
Yes, in most cases a failed hardware component like a roller, lock, or balance can be replaced without touching the glass, and a fogged IGU can be swapped without replacing the whole window. Full frame replacement is only necessary when the extrusion itself is damaged or the original install was out of square. Call (772) 362-3326 for an assessment, and we’ll quote the repair versus the replacement side by side so you can decide.
Most sash, glass, or hardware replacements on CGI windows take our technicians 45 minutes to 2 hours per window, and most jobs are completed same-day. Full frame replacement with trim work can take a half day per window. Call (772) 362-3326 and we’ll give you a written time estimate before we start.
We keep common CGI parts on the truck, including rollers, lock assemblies, and weatherstripping for the most common Port St. Lucie installs. Specialty glass packages and complete sashes are ordered from CGI or our supplier network and typically arrive in 1 to 2 weeks. We also keep parts for Andersen, and Pella windows if you have a mixed-brand house. Call (772) 362-3326 to schedule a free estimate and we’ll confirm parts availability on the spot.
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.



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