CGI Home Additions & ADU Nationwide

CGI Home Additions & ADU: The Pasadena Owner’s Guide

We stock and install CGI-compatible components for home additions and ADU projects throughout Pasadena, with typical installed pricing for full addition work running $45,000-$130,000 and ADU construction at $90,000-$220,000 depending on foundation, utility tie-ins, and finish level. Most homeowners discover their CGI window or door systems need attention during the rough-in phase, when frames arrive out of plumb or hardware sets don’t match the specified series - that’s usually the moment they call us at (562) 203-4508. We carry common CGI replacement hardware, sash kits, and frame components on our trucks, and we can source specialty orders directly through CGI’s Florida distribution with a five-day lead time.

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Which CGI Models This Applies To

CGI manufactures impact-resistant windows and doors under several series lines, and the parts are not interchangeable across them. The Estate Collection uses a heavier extrusion profile with a 3-inch frame depth, while the Sentinel Series runs a slimmer 2.5-inch profile designed for replacement openings in older Pasadena homes - Bungalow Heaven Craftsman bungalows, for instance, often have existing openings too shallow for the Estate line without significant reframing. The part number is stamped on the interior frame rail; it starts with a two-letter series code (ES for Estate, SE for Sentinel, PR for ProVault) followed by a six-digit date code. If the label is painted over, measure the frame depth at the jamb - 3 inches points to Estate, 2.5 to Sentinel, 2.25 to ProVault.

We source OEM hardware from CGI’s approved distributor network, but for certain components - roller assemblies on sliding doors, multipoint lock strikers - we also stock quality aftermarket equivalents from Truth Hardware and Hoppe that meet the same Miami-Dade impact standards at roughly 30% less cost. The aftermarket route makes sense when the original part is back-ordered, which CGI’s more specialized hardware sometimes is during Florida hurricane season when their factory prioritizes in-state orders. We always cross-reference the spec sheet before substituting; under Clause 1 of the Haven Standard, the customer sees the alternative part number and price in writing before we order it.

Signs Your CGI Home Additions & ADU Is Failing

• Sliding door rollers grind or stick. The stainless steel roller housing on CGI’s Estate sliding door can corrode at the axle pin when Pasadena’s winter rains sit in the track - the housing looks fine, but the pin seizes. We see this most on south-facing doors where afternoon heat accelerates the breakdown of the factory lubricant.
• Multipoint lock doesn’t engage at all three points. The top and bottom shoot bolts rely on a sequential gearbox; if the door sags even 1/8 inch on its hinges, the middle hook engages but the top and bottom miss. In Pasadena’s older homes with raised foundations, seasonal settling often throws the frame out of square before the hardware itself fails.
• Impact glass fogs between the panes. The laminated interlayer has separated from the glass, breaking the hermetic seal. This is not a hardware fix - the sash unit needs replacement - but homeowners often call us first because the symptom looks like a frame leak.
• Screen frame separates at the corners. CGI’s extruded aluminum screen frames use a friction-fit corner key that loosens with thermal cycling. Pasadena’s 40-degree swing between summer highs and winter lows works that joint hard; we replace with a heavier keyed corner and stainless steel spline on reinstall.
• Weep screed holes clog with stucco or paint. The drainage channels at the sill are designed to evacuate wind-driven rain, but painters and stucco crews often cover them. Water backs into the track, accelerates corrosion, and the homeowner blames the door - we clear the weeps with a dedicated tool and document the condition in the photo record.

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Replacement Cost & What’s Included

The range on hardware reflects whether we have the part on the truck or need to order from CGI’s distributor - we stock rollers and lock sets for Estate and Sentinel series; ProVault and custom color hardware typically ships. On full additions and ADUs, the spread is driven by foundation type (slab-on-grade vs. raised with piers), whether we’re tying into existing utilities or running new service, and finish level - KraftMaid cabinets and Cambria countertops sit at one end, builder-grade at the other. Every quote is a flat written price with line items separated: materials, labor, permits, and contingency. No work proceeds on a change until the change order is signed, which is the discipline that has kept our projects within a few percent of the agreed number across 4,000-plus jobs since 2007.

DIY or Call Us?

There’s a safe middle ground here, and then there’s a hard stop. A homeowner can check the weep screed holes with a toothpick, verify the part number on the frame label, and photograph the symptom to send us - that saves a trip charge and we welcome it. What we don’t recommend is removing a CGI impact door from its hinges or disassembling the multipoint lock gearbox. These units weigh 200-plus pounds with the glass installed, and the hinge pins are under significant load; a dropped door damages the frame, the floor, and potentially the person underneath it. The lock mechanism contains spring-loaded shoot bolts under tension - not garage-door-spring dangerous, but capable of launching small parts if disassembled without the proper sequence.

We carry replacement hardware on our trucks for same-day resolution when the part matches our stock. For specialty orders, we quote a firm arrival date in writing. Call (562) 203-4508 to schedule - estimates are free, and we bring the part catalog so you can see exactly what you’re paying for.

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