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CGI Home Additions & ADU: The Orlando Owner’s Guide
CGI home additions and ADUs in Orlando typically run $45,000 to $130,000 for a full addition and $90,000 to $220,000 for a detached accessory dwelling unit, depending on square footage, site prep, and finishes. We stock and install CGI-compatible components including windows, doors, roofing, and structural materials, and we can usually start an initial consultation within days, not weeks. Most Orlando homeowners discover a CGI product problem during a storm inspection or a remodel, when a window seal has failed, a roof flashing has lifted, or a door frame has shifted out of square from our humidity and afternoon downpours.
If you’re reading this page, you likely have a CGI product that isn’t holding up the way it should, and you want it matched, replaced, and priced in writing before anyone swings a hammer. That’s how we work.
Which CGI Models This Applies To
CGI manufactures impact-rated windows, doors, and sliding glass units, and the parts that fail most often on home additions and ADUs are the peripheral components that get installed around them. We regularly work with CGI’s Classic and Estate window lines, CGI sliding glass doors, and CGI hinged entry doors. The compatibility gotcha that trips up Orlando homeowners is this: CGI impact windows built before 2016 used a different glazing bead profile than current production, so a replacement sash or seal from a newer run often won’t seat correctly without a retrofit bead. If you have the original window sticker or the etched corner markings, that’s the fastest way for us to verify the exact series and production year.
On the OEM versus aftermarket decision: for seals, gaskets, and rollers, quality aftermarket parts from suppliers like Amesbury or Truth Hardware hold up fine in Central Florida and often cost 30 to 40 percent less than CGI-labeled components. For glass units, laminated sashes, and frame extrusions, we insist on CGI OEM parts. An impact-rated window is only as strong as its weakest lamination layer, and an aftermarket glass pack that hasn’t passed Miami-Dade testing is a liability during hurricane season. We’re an independent contractor, not a CGI dealer, so our recommendation on parts is driven by what holds up in Orlando’s climate, not by what moves inventory.
We also stock compatibility parts for KraftMaid cabinetry, Cambria and Silestone countertop profiles when a CGI addition or ADU includes interior finish work. That matters when you’re replacing a CGI sliding door and the jamb extension has to tie into an existing cabinet run or counter overhang.
Styles & brands we work with
Signs Your CGI Home Additions & ADU Is Failing
- Fogging or milky haze between the glass panes. The seal on the insulated glass unit has failed, and Florida humidity is now trapped between the lites. This won’t dry out on its own, and it’s worse in Orlando’s wet season, which runs from June through September.
- Water staining on drywall beneath a CGI window or door. The exterior flashing or sill pan has failed, letting wind-driven rain behind the frame. In Orlando, afternoon thunderstorms hit at a 45-degree angle often enough that a small flashing gap becomes a visible leak within one season.
- A sliding door that drags or binds halfway open. The rollers are done, or the track has developed a low spot from settlement. Orlando’s sandy soil shifts more than most people expect, and ADU slab foundations in areas like Avalon Park and Lake Nona deal with it constantly.
- Cracking or splitting at the stile and rail joints of a CGI door panel. The laminated veneer can separate after years of direct sun exposure on a west-facing wall. Once the veneer splits, water gets into the core and the panel loses structural integrity.
- Drafts or whistling around the frame on windy days. The weatherstripping has compressed or the frame has moved out of square. It’s not just about comfort; an impact window that has lost its seal is also losing its pressure rating.
See the difference
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After
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AfterReplacement Cost & What’s Included
For a full home addition or ADU built with CGI products, the numbers we quote in Orlando follow the same written-price rule as every job we do. The addition itself runs $45,000 to $130,000. An ADU runs $90,000 to $220,000. What drives the spread is square footage, whether you’re tying into an existing slab or pouring new, and what finishes you spec. A 400-square-foot addition with a simple roofline and builder-grade finishes sits at the bottom of the range. A 750-square-foot ADU with a full kitchen, a bath, impact windows throughout, and a separate electrical subpanel runs toward the top.
Here’s the line-item reality for the CGI-specific portion of that work:
- CGI impact window replacement (single unit, installed): $800 to $2,500 per window depending on size and series
- CGI sliding glass door replacement (standard 72-inch wide): $3,500 to $8,500 installed
- CGI entry door with sidelites: $3,000 to $9,000 installed
- Roof flashing and waterproofing around CGI products: $400 to $1,800 depending on the roof line and access
Every quote includes parts, labor, haul-away, and the written 365-Day Done Right Promise. If a seal fails or a roller gives out inside the first year, we come back and fix it. That’s in writing before you pay a deposit.
DIY or Call Us?
What you can safely do on your own: clean the tracks on a sliding door, check for obvious debris in the weep holes at the bottom of the frame, and tighten loose hardware on a hinged CGI door. What you shouldn’t try: replacing an impact-rated glazing unit, re-laminating a door panel, or re-flashing a window on a second-story addition. The safety concern is real. Impact glass is heavy, one blowout during removal means shattered laminate, and a CGI window that isn’t seated and shimmed correctly loses its wind-missile rating. That’s not a theory. We’ve fixed DIY window swaps in College Park where the homeowner got the window in, got the house closed up, and six months later found water in the wall cavity because the sill pan was backwards.
If you’re not sure whether the part you’re looking at is a simple fix or a full replacement, call us at (850) 809-0306. We’ll tell you straight what you’re dealing with, and if it’s a simple fix, we’ll say that too. You’ll get a written price before any work starts.
FAQs
CGI impact windows and doors typically carry a 10-year limited warranty, and in Orlando’s climate, the seals and gaskets realistically begin showing wear around year 8 to 12, with laminated glass units often outlasting the hardware and weatherstripping around them. The humidity and UV exposure in Central Florida accelerate rubber and foam degradation compared to drier markets. Call (850) 809-0306 if you’re seeing fogging or drafts on a unit that’s under 10 years old, we can tell you whether it’s a warranty-eligible seal failure before you spend anything.
Yes, in many cases a failed roller, a compressed gasket, or a bent hinge can be repaired for $150 to $600, but a fogged insulated glass unit or a split door panel usually means replacement of that component. The honest answer depends on where the failure is, and we’ll give you that answer before recommending work. Call (850) 809-0306 and one of our techs will look at photos or schedule a visit.
A single window or door component replacement is usually a half-day to one full day on site, while a full home addition or ADU with CGI products takes 10 to 18 weeks from permitting through final inspection, depending on size and scope. We pull permits on every structural job and the timeline is in your written quote. Call (850) 809-0306 to get a schedule based on your actual project.
We keep common CGI-compatible hardware on the truck including rollers, gaskets, weatherstripping, and hinge sets, but impact-rated glass units and door panels are ordered to spec from the manufacturer or a certified fabricator, which takes one to three weeks in the Orlando market. Since we’re an independent contractor, not a CGI dealer, we verify the exact series before ordering so you’re not waiting on the wrong bead profile. Call (850) 809-0306 and we can verify your part number over the phone with the etching on the glass.
Good work doesn’t need a speech, it just needs to hold up. If you’ve got a CGI window, door, or structural component that isn’t holding up, we’ll price the fix in writing and stand behind it for a full year. Call Sawyer Remodel Orlando at (850) 809-0306 for a free estimate on any CGI home addition or ADU work in Orlando.
Written by Luca Romano, Owner & Lead Contractor, Sawyer Remodel Orlando at Sawyer Remodel Orlando, serving Orlando and nearby areas.
