CGI Windows & Doors Nationwide

CGI Windows & Doors: The Sherman Oaks Owner’s Guide

CGI windows and doors replacement in Sherman Oaks typically runs $4,500-$15,000 for full window replacement and $8,000-$25,000 for impact-rated installations, with most part-specific repairs like sash, hardware, or seal replacement landing between $400 and $1,800 installed. We stock common CGI-compatible hardware and seals on our Sherman Oaks trucks, and most part replacements are completed in a single visit. Most Sherman Oaks homeowners discover a CGI part has failed when they feel a draft along the Ventura Boulevard corridor homes during Santa Ana wind events, or when the locking mechanism sticks after years of salt air exposure from the Valley’s summer haze cycles.

Call (213) 221-0788

Which CGI Models This Applies To

CGI’s product lines break into three main series that you’ll find across Sherman Oaks homes: the Estate Series (aluminum impact), Sentinel Series (vinyl impact), and Commercial Series (heavy-duty aluminum). The Estate 200 and 400 series use a specific 3-inch frame depth with a proprietary weep screed, the drainage channel at the sill, that differs from the 2.5-inch Sentinel profile. To identify your part, look for the etched manufacturing date and series code in the upper right corner of the glass, visible when you open the sash. The OEM part number starts with “CGI-” followed by a four-digit series identifier.

For hardware specifically, CGI sources from Truth Hardware and Hoppe on most residential lines, but the striker plate geometry on impact-rated units is proprietary. Aftermarket equivalents from AmesburyTruth exist and meet Miami-Dade HVHZ standards, but the color match on Sherman Oaks homes with the popular bronze anodized finish is rarely exact. We carry both options and will show you the sample before ordering.

Signs Your CGI Windows & Doors Is Failing

• Draft along the sill or jamb. The compression seal, the rubber bulb that seats against the frame when closed, hardens after 8-12 years in the San Fernando Valley’s heat and UV exposure. Once it loses elasticity, the sash no longer seats tight and conditioned air escapes.
• Sash won’t stay open or slams shut. The balance system, either a coil spring or block-and-tackle mechanism depending on CGI series, has worn or the lubricant has gummed with Valley dust. This is a wear item; replacement restores proper operation.
• Locking mechanism sticks or grinds. The multipoint lock’s internal cam wears, or the keep, the metal receiver the lock engages, has shifted slightly in the frame. In Sherman Oaks, we see this often on south-facing units where thermal expansion cycles are most extreme.
• Condensation between glass panes. The insulated glass unit’s edge seal has failed, breaking the argon fill and allowing moisture intrusion. This is not repairable; the IGU gets replaced as a complete assembly.
• Visible corrosion at the weep holes or frame corners. Aluminum frames in the 91403 and 91423 ZIP codes see accelerated electrolytic corrosion where irrigation overspray hits the sill repeatedly. Early catch saves the frame; late catch requires full replacement.

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Replacement Cost & What’s Included

Part-specific CGI repair in Sherman Oaks breaks down as follows:

• Compression seal replacement: $180-$340 per opening
• Balance system repair: $220-$480 per sash
• Multipoint lock or hardware set: $260-$620 per door or window
• Insulated glass unit (IGU) replacement: $450-$1,200 per lite
• Full sash or frame section: $680-$1,800 depending on series and size

What drives the range: the Estate Series aluminum parts cost more than Sentinel vinyl equivalents, and oversized units common in the hillside homes north of Ventura Boulevard require custom ordering with longer lead times. Every repair quote from Rowan Construction Group Sherman Oaks is a flat written price with parts and labor itemized separately. Under Clause 1 of The Haven Standard, that price is locked before work starts. Our 365-Day Done Right Promise covers the installation and any hardware we supply.

DIY or Call Us?

There’s a safe middle ground for CGI owners. You can inspect the weep holes for blockage, a common cause of sill pooling, and verify the lock keep hasn’t loosened with a Phillips head check. But the balance system operates under spring tension that can release unpredictably, and the multipoint lock’s internal alignment requires shimming to 1/16-inch tolerance for proper seal compression. We’ve been called to Sherman Oaks homes where a well-intentioned owner cracked the IGU trying to remove a sash for hardware access. For anything involving disassembly, call (213) 221-0788. We’ll show you the part, explain the failure, and give you the written price before any work starts.

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