CGI Home Additions & ADU Nationwide

CGI Home Additions & ADU: The Pompano Beach Owner’s Guide

We stock and install CGI-compatible components for home additions and ADU projects in Pompano Beach, with typical installed pricing running $45,000-$130,000 for additions and $90,000-$220,000 for full ADU construction. Most CGI window and door systems in coastal additions show stress at the weep screed drainage channels or impact-rated frame seals after 8-12 years of salt air exposure. If you’re seeing water intrusion at the sill or fogging between impact glass layers, the unit is telling you the marine-grade seal has degraded.

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Which CGI Models This Applies To

CGI’s impact product lines most commonly specified for Pompano Beach additions and ADUs are the Estate Series (aluminum impact windows), Sentinel Series (vinyl impact windows), and WinDoor (aluminum impact doors and sliding systems). The Estate 200 and 400 series use a 2-5/8″ frame depth with a thermal break, while Sentinel vinyl frames run 2-3/4″ - a 1/8″ difference that matters when matching replacement sills to existing rough openings in an addition’s framed wall.

To identify your unit, check the etched mark in the glass corner for the series code and the AAMA certification label on the frame jamb. The critical compatibility gotcha in Broward County: CGI revised its weep screed design in 2017, so pre-2017 units have a two-channel drain while post-2017 units use a three-channel system with an integrated bug flap. Mixing the sill pan to the wrong era guarantees standing water during Pompano Beach’s summer deluges. We source both OEM CGI sills and Florida-tested aftermarket equivalents from CMI and Mr. Glass that meet HVHZ (High Velocity Hurricane Zone) requirements, but we specify OEM when the existing frame is still under CGI’s 10-year glass seal warranty to avoid voiding coverage.

Signs Your CGI Home Additions & ADU Is Failing

• Water staining at the interior sill or drywall below. In Pompano Beach, this usually traces to clogged weep channels packed with salt crust and sand - the coastal environment accelerates this to every 2-3 years instead of the inland 5-7 year interval. The water has nowhere to exit, so it backs into the wall cavity.
• Fogging or haze between impact glass panes. The insulated glass unit (IGU) seal has failed, allowing humid Florida air inside. Once the desiccant saturates, the fog becomes permanent and the impact rating is compromised because the glass layers no longer act as a unified structural panel.
• Frame corner separation or caulk line gaps. Thermal cycling in unconditioned ADU spaces pushes aluminum frames through expansion cycles of 1/8″ per 10 feet of frame length. The corner keys loosen, and the marine-grade silicone bead loses adhesion.
• Difficulty latching or sliding. The stainless steel roller assembly in CGI’s WinDoor sliders corrodes when the weep system backs up, or the header deflects in additions with undersized LVL beams. The door is fighting gravity and its own frame.
• Visible corrosion pitting on exterior frame faces. Salt air etches anodized aluminum beyond the 0.7 mil thickness CGI specifies; once the substrate is exposed, the frame section loses structural integrity and HVHZ compliance.

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Replacement Cost & What’s Included

The range depends on three factors: whether we’re matching existing frame finishes (CGI’s bronze anodized is standard, white is stock, custom Kynar colors add 3-4 weeks and 15-20%), the structural condition of the surrounding addition framing, and whether the original installation included proper sill pan flashing. Under Clause 1 of the Haven Standard, you receive a written price before any work starts - every time, with line-item parts and labor separated. Our 365-Day Done Right Promise covers the installation; CGI’s manufacturer warranty covers the product. We pull all permits and schedule inspections; the photo record of substrate conditions, rough opening, and final install is included as standard documentation.

DIY or Call Us?

There’s a safe middle ground and a hard stop. An owner can clear weep channels with a pipe cleaner and flush with fresh water - do this every spring and fall in Pompano Beach. You can also verify the AAMA label and measure rough opening width and height to confirm what you’re ordering. That’s where safe DIY ends.

Impact glass replacement is not a homeowner job. The IGU weighs 6-8 pounds per square foot, the frame is under tension from installation screws, and a dropped impact unit is a $900 mistake that also exposes your home to wind-borne debris code violations. Weep screed replacement requires removing the sash, cutting sealant bonds, and re-establishing the sill pan’s positive slope to the exterior - get it wrong and you’ve built a bathtub instead of a window. We carry CGI-compatible sills, IGUs, and hardware on our Pompano Beach trucks, and we sequence the work so your addition isn’t open to weather overnight. Call (754) 714-6540 to schedule your free estimate.

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