CGI Window Replacement Nationwide | TruePane Windows & Doors

CGI Window Replacement: The Miami Owner’s Guide

CGI window replacement in Miami typically runs $450 to $1,400 per opening installed, depending on the series, glass package, and whether the frame itself needs re-anchoring. We stock CGI-compatible sashes, insulated glass units, balances, rollers, and hardware on our trucks, and most single-window swaps are done in one visit. Here’s the pattern we see in Miami: a homeowner notices condensation trapped between the panes, or a sash that suddenly drops three inches when they crack it open for a breeze, or a lock that no longer lines up because the frame torqued during a storm season. That’s the moment to replace the part before it becomes a bigger opening problem.

Call (754) 238-2201

Which CGI Models This Applies To

TruePane Windows & Doors is an independent service provider, not affiliated with CGI. That matters because we’re not obligated to push one brand’s line. We match what you already have, and we’re blunt about whether the right fix is a genuine CGI component or a quality aftermarket equivalent. CGI makes its impact lines in several families: Estate, Estate Impact, Estate Collection, Targa, and the newer CGI Sentinel series. Each uses different glazing beads, balance hardware, and in some cases slightly different sash wall thicknesses. The Estate Impact sash from 2007 is not interchangeable with a 2019 Sentinel sash, even when both are single-hung. The quickest way to identify what you have: look at the spacer bar between the glass panes for the CGI etch, then check the interior corners of the sash for a small printed label with the series code. If the label has faded under Miami sun, measure the visible glass width and the sash thickness at the lock rail with a tape measure to the sixteenth of an inch. That measurement tells us more than a model name ever will.

A word on OEM versus aftermarket for CGI specifically: the frames on CGI impact lines are built to carry the weight of laminated glass, which is significantly heavier than standard annealed. A generic replacement sash or balancing system not rated for that load will sag, bind, and fail early. For the glazing itself, we often recommend laminated impact glass that meets Miami-Dade HVHZ requirements rather than a thinner aftermarket insulated unit, because an out-of-spec pane in a CGI frame voids the structural rating and changes how the whole opening behaves in wind load. On the hardware side, quality aftermarket balances and rollers built to the same dimensions and weight class are routinely fine, and they cost less without cutting corners. Dale Kessler, our owner, measured his first CGI sash sometime around 2006 and still pulls the frame dimensions himself on every CGI call.

Signs Your CGI Window Replacement Is Failing

• Condensation or haze between the panes. The seal on the insulated glass unit has failed, usually after years of Miami humidity cycling and direct sun. The glass isn’t broken, but the unit has lost its insulating and acoustic value, and it will only get worse because moisture is now inside the assembly.
• Sash drops hard or won’t stay open. The block-and-tackle balances or spiral balances have lost tension, or in older CGI units the constant-force coil has snapped. On an impact sash that weighs twenty-five to forty pounds, a failing balance turns a routine open into a two-hand fight.
• Lock no longer lines up or takes force to engage. This is often a sagging hinge or a frame that has shifted slightly out of square, which happens over time in Miami’s wet-dry soil cycles. The keep and latch still look fine, but they no longer agree on a location.
• Crank or slide operation is rough or grinds. On casement and horizontal roller lines, the operator gears have worn or the rollers have flattened from years of coastal grit. Pushing harder only strips the mechanism and costs you more when it finally gives out.
• Water staining on the interior sill or wall below the window. Weep holes may be clogged, the exterior sealant bead has shrunk, or the frame flashing has failed at a corner. By the time you see the stain, moisture has been getting in for a while, and the longer it sits the more the surrounding wall suffers in Miami’s humidity.

Replacement Cost & What’s Included

In Miami, expect to pay these installed ranges for CGI-compatible replacement:

• Insulated glass unit only (seal failure): $300-$700 per sash for laminated impact, depending on size and Low-E coating
• Sash assembly replacement (balance plus glazing): $450-$850 per sash
• Balance or hardware replacement only: $180-$380 per sash
• Full frame-and-sash replacement (rotted or twisted frame): $800-$1,400 per opening

What moves the number is mostly the glass package (clear versus Low-E versus tinted impact) and whether the frame itself is still sound. You get a written line-item quote before we start, and the price doesn’t move once it’s set. Both manufacturer warranty layers are registered in writing, durations stated, before the truck leaves your driveway. The work itself is covered by the Done Right Promise: if it’s not done right, we make it right, no paperwork fights.

DIY or Call Us?

What an owner can safely do is diagnose: check the CGI etch on the glass, note where condensation sits, see whether the sash drops at a particular point in its travel, and take a couple of photos of the labels and the opening. What you shouldn’t DIY is removing a sash from an impact-rated frame. Those sashes are heavy, often over thirty pounds with laminated glass, and the balance springs inside them are under real tension. A sash that lets go while you’re pulling it can take a finger with it or crack the glass on the way down. Measure it right the first time, or plan on coming back. If you want a number instead of a guess, call (754) 238-2201 and we’ll set a time for an estimate. The estimate costs you nothing, and we’ll show you exactly what we’re replacing and why before any work begins.

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