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CGI Door Installation: The Three Lakes Owner’s Guide
CGI door installation in Three Lakes typically runs $890-$2,400 for a standard single entry unit, depending on impact rating, frame material, and whether the rough opening needs reframing. We stock CGI-compatible frames, sills, and hardware on our trucks, and most replacements are surveyed and installed within one to two business days. Most Three Lakes homeowners discover their CGI door is failing when the sweep drags, the multipoint lock won’t throw, or they notice daylight under the inactive panel of a French door after a heavy rain.
Which CGI Models This Applies To
CGI manufactures several door series that circulate through Three Lakes homes built between 2005 and 2020. The Estate Series and Sentinel Series are the two we encounter most often. Estate doors carry a thicker aluminum frame, typically 4-9/16 inch jamb depth, and use a proprietary multipoint lock system that does not interchange with standard Schlage or Kwikset hardware. Sentinel uses a slimmer profile, 3-5/8 inch jamb depth, and a different hinge barrel spacing. The series name is stamped on the hinge edge of the door slab, usually behind the top hinge, and the manufacturing date code sits on the glass lite label in the lower corner.
OEM CGI parts, ordered through their Florida distribution, carry exact fit but run 20-40% above quality aftermarket equivalents. For hinges and sweep assemblies, we typically specify OEM. For multipoint lock chassis, we use a tested aftermarket equivalent that matches the backset and faceplate dimensions, documented in the photo record we leave. The gotcha: 2014-2017 Estate Series units used a transitional strike plate with a 1/2 inch offset that aftermarket hardware does not cover. We measure that offset during the survey and flag it in the written scope before ordering.
Signs Your CGI Door Installation Is Failing

- The door sticks or binds in the frame. This usually traces to hinge screw loosening in the aluminum jamb, common in Three Lakes where afternoon heat expansion cycles stress the fastener threads. The frame goes out of square by 1/8 inch or more, and the latch bolt starts missing the strike.
- Water pools on the interior sill after rain. The composite sill cap on CGI units cracks at the weep channel corners after 6-10 years of UV exposure. Once the channel blocks, water backs up and finds the path of least resistance, which is usually the interior edge.
- The multipoint lock handle turns but the bolts don’t extend. The gearbox inside the lock chassis strips its zinc casting, often from forcing the handle when the door is warped or the frame is out of plumb. This is a full chassis replacement, not a lubrication fix.
- Daylight visible between the door bottom and the threshold. The sweep gasket compresses permanently over time, and the adjustable threshold on older CGI units has run out of travel. The gap starts at 1/16 inch and grows.
- Glass fogs between the panes. The dual-pane IG unit has lost its seal. CGI used two different spacer systems depending on year; one is field-replaceable, the other requires a full sash replacement. We check the spacer type during survey.
Before
AfterReplacement Cost & What’s Included
For Three Lakes, installed CGI door replacement breaks down as follows:
| Component/Scope | Typical Range |
|---|---|
| Standard single entry, non-impact, slab only | $890-$1,350 |
| Impact-rated single entry, full frame | $1,650-$2,400 |
| French door pair, impact-rated | $2,800-$4,200 |
| Rough opening reframe (rot or out-of-plumb) | $340-$680 |
| Multipoint lock chassis, installed | $280-$450 |
| IG unit replacement (seal failure) | $380-$620 |
The range depends on three factors: impact rating required by your specific Three Lakes zone, whether the existing frame is square within 1/8 inch, and if the interior trim needs replacement after removal. Our survey produces a measured drawing you keep; the written quote derived from it is the final invoice. No change orders. The 365-Day Done Right Promise covers labor and installation materials; manufacturer defects fall to CGI’s own warranty, which we document and file on your behalf.
DIY or Call Us?

There is one thing a Three Lakes owner can safely check: the hinge screws. Open the door 90 degrees, support the weight from below, and see if the screws in the jamb leaf turn freely with a screwdriver. Loose screws here are the early warning, and tightening them with a proper thread-locking compound can buy time.
Everything else belongs to a trained installer. Impact-rated doors weigh 80-140 pounds depending on size and glazing. The multipoint lock chassis is under spring tension; improper handling can fire the bolts with enough force to chip tile or break a finger. And reframing a rough opening that has settled or rotted requires reading the plumb in two planes, something that looks straightforward until the head casing is off and the wall is 3/4 inch out. We carry the specific hinge barrel tools and the CGI strike shim kit on the truck. Call (786) 808-5792 to schedule a survey.
FAQs
Twelve to eighteen years for the frame and hardware, six to ten for the sill cap and sweep, depending on sun exposure and whether the door faces west into the Killian Corridor afternoon load. Coastal salt air shortens that by 20-30%. Call (786) 808-5792 for an exact assessment of your unit.
Hardware failures, seal failures, and sill cap cracks are repairable. Frame corrosion, structural warp beyond 1/4 inch, or outdated non-impact rating in a high-velocity zone require full replacement. We document both options in the written scope and price each separately. Call (786) 808-5792 to schedule your free estimate.
A standard single entry replacement, frame intact, takes four to six hours. French door pairs or jobs requiring reframe run one to two days. We leave a documented photo record of each stage. Call (786) 808-5792 to book a survey and we’ll confirm the timeline for your specific opening.
We stock common CGI-compatible hinges, sweep assemblies, multipoint lock chassis, and sill caps. Estate Series transitional strike plates and custom-size IG units ship from CGI’s Florida distribution within three to five business days. We confirm stock status during the survey so the install date is fixed. Call (786) 808-5792 to check availability for your model.
Sightline Windows & Doors Three Lakes is independently owned and operated under the Haven Standard. We are not affiliated with CGI Windows & Doors; we are an authorized independent installer and service provider for their product lines, alongside PGT, CWS, and ES Windows.
Measure once, quote it straight, install it right - nothing else belongs on the invoice.
Written by Sonia Raman, Owner, Sightline Windows & Doors Three Lakes at Sightline Windows & Doors Three Lakes, serving Three Lakes and nearby areas.










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