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CGI Windows & Doors: The Los Angeles Owner’s Guide
We stock, source, and install CGI-compatible windows and doors throughout Los Angeles, with most replacement parts and full units running $5,310 to $17,700 installed depending on size, series, and what failed. If you’re calling us, it’s usually because a sash won’t close cleanly, a latch has gone sloppy, or a seal is letting in air and noise from the street. You want the exact CGI part matched to your model, a written price before we touch anything, and a crew you can identify at the door. That’s the job.
CGI builds impact-rated windows and doors, which means the parts are not interchangeable with standard builder-grade hardware. The balances, rollers, locking mechanisms, and weatherstripping are sized to heavier glass packages and specific frame depths. When a homeowner in Sherman Oaks or Mid-Wilshire calls us with a failed CGI part, the first thing we figure out is which series they have and what the sticker inside the frame says. Without that, any quote is a guess.
Mason Remodeling is an independent service provider. We’re not affiliated with CGI or its parent company, and we don’t pretend to be. What we do is stock the common failure parts, order the oddball ones through trade channels, and install everything to manufacturer spec with a written price before work starts.
Which CGI Models This Applies To

CGI’s line runs from the Estate Collection and Estate Entrances through the Sentinel and Tribute series, plus custom-impact windows used in coastal and hillside homes across Los Angeles. Each series uses specific hardware: Tribute windows take a different balance shoe than Sentinel, and Estate Collection doors use heavier hinges and multi-point locking systems than the standard single locks on older CGI StormGuard models. The gotcha is that even within one series, CGI has revised hardware over the years, so a 2014 Sentinel sash balance may not be the same part as a 2021 Sentinel balance, even though the window looks identical.
To identify your part, open the window or door and look for the CGI label, typically on the head jamb or the edge of the sash. It lists the series, product code, and often a date. If the label is worn off, we measure the frame depth, glass package thickness, and the specific hardware configuration. That’s how we match OEM versus the right aftermarket equivalent. For CGI specifically, we recommend genuine CGI hardware for locks, multi-point mechanisms, and anything tied to the impact rating. For rollers, balances, and weatherstripping, a spec-matched aftermarket part usually performs just as well and costs less. We’ll tell you which is appropriate for your window and why, and the price is on the written quote either way.
Styles & brands we work with







Signs Your CGI Windows & Doors Is Failing
- A sash that’s hard to lift or won’t stay up. This is almost always a failed spring balance or jammed balance shoe. In Los Angeles, the issue is often compounded by grit from dry wind and construction dust working into the track, which wears the nylon shoe faster than the spring itself.
- A handle or latch that spins without engaging. The internal gear on CGI’s locking handle can strip, especially on doors that get daily use. The lock body still works, but the handle no longer catches. The fix is a replacement handle set, not a whole new door.
- Air, noise, or water at the sill or sides. Weatherstripping on impact windows takes a beating from sun exposure, which breaks down the compression gaskets faster in Los Angeles than in coastal climates with milder UV. If you hear traffic from the 101 that you didn’t hear before, the gasket is likely gone, not the glass.
- Fogging or condensation between the panes. That’s a failed glass seal. You can’t reseal an insulated glass unit in the field; you replace the IGU or the sash. We measure the exact glass package needed so the replacement matches the rest of the window.
- A door that scrapes or stops closing cleanly. Often the issue is a worn roller or a hinge that’s sagged, but on CGI doors it can also be a misaligned multi-point lock, which mangles the receiver. The longer that runs, the worse it gets.
See the difference
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AfterReplacement Cost & What’s Included

Parts-and-labor replacement for CGI windows and doors in Los Angeles runs $5,310 to $17,700 for full window replacement, with smaller repairs like a balance swap or weatherstripping job typically landing between $295 and $2,125. A single sash replacement runs less, but not as much less as you’d think, because the glass has to be matched to your existing unit. The price depends on the CGI series you have, the size of the unit, the glass package, and whether we’re replacing a part or the whole assembly.
Every quote includes the part, labor, disposal of the failed component, and a written warranty on the work for 365 days from the completion date. What it won’t include is a surprise. The price on the quote is the price on the invoice, and if the repair or installation fails within a year, we come back at no charge. Isaac Pruett has been looking at jobs like this long enough to know the difference between a part that can be saved and one that’s telling you it’s done.
DIY or Call Us?
Here’s the honest split. You can safely inspect your windows and doors to confirm a symptom, and you can clean tracks, adjust a strike plate, or re-seat a loose screen without touching anything dangerous. What you shouldn’t do is attempt to remove a sash that’s under spring tension, manhandle a multi-point lock that’s jammed, or pull a door off its hinges that’s been sagging for six months. A high-tension balance can take off a finger, and a heavy impact door that slips during removal can break a lot more than a toe. It’s not worth it.
If you’re in Los Angeles and dealing with a CGI window or door that’s failed, call (803) 680-2547 and tell us the symptom and the series if you have it. We’ll give you a straight read on what we think it is, what it costs, and whether we have the part on the truck. The estimate is free, and you’ll know who’s coming before they ring the bell.
FAQs

CGI windows and doors typically last 20 to 30 years in Los Angeles, but hardware components like balances, rollers, and weatherstripping often wear out in 10 to 15 years due to sun exposure and daily use. The frame and impact glass will outlast the moving parts, which is why we stock the hardware and replace it before recommending new units. Call (803) 680-2547 if you’re not sure which part of yours has failed.
Yes, many CGI failures are part failures, not window failures. A lock, balance, roller, gasket, or handle can be replaced without touching the frame or glass, which means you keep your impact rating and spend a fraction of a full replacement. If the glass seal has failed or the frame is compromised, repair becomes replacement. Call (803) 680-2547 for an honest assessment and a written price.
A hardware swap, like a balance replacement or lock change, usually takes 30 to 90 minutes per window or door. A sash replacement runs longer because the glass unit has to be measured and matched. We’ll confirm the parts are the correct match for your CGI series before the appointment, then give you a window of time for the visit, not an all-day wait.
We stock common CGI failure parts like balances, handles, rollers, and weatherstripping, and we order series-specific items that we can’t reliably cross-match. If you tell us the symptom and the series, we’ll let you know on the phone whether it’s something we have on the truck or something that needs an order. Either way, you’ll have a written price before the work is scheduled.
Written by Isaac Pruett, Owner, Mason Remodeling at Mason Remodeling, serving Los Angeles and nearby areas.


