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CGI Sliding & Patio Doors: The Davie Owner’s Guide
We stock and install CGI-compatible sliding and patio door systems in Davie, with typical installed replacement costs running $1,800-$4,200 depending on panel size, impact rating, and frame condition. Most standard single-panel units are available same-day from our CGI inventory, and we carry common rollers, tracks, and locking assemblies on every truck. Most Davie homeowners discover a problem when the door starts catching at the sill, the lock no longer seats flush, or they notice daylight between the panel and jamb after a storm.
Which CGI Models This Applies To
CGI’s sliding and patio door lines break into three series that matter for parts matching: the Estate Series (non-impact, aluminum frame), the Sentinel Series (impact-rated with laminated glass), and the WinGuard Series (higher-design-pressure impact units common in Davie’s newer construction). The label you need is the etched mark in the glass corner or the stamped aluminum tag on the frame head, which lists the series, nominal size, and DP (design pressure) rating. We see frequent mismatches when homeowners order Estate rollers for a Sentinel track; the roller diameter differs by 3/16 inch, enough to bind the panel within a month.
For OEM versus aftermarket on CGI specifically: the rollers, tandem assemblies, and stainless steel tracks are worth buying OEM because CGI machines their track profiles to a tighter tolerance than generic equivalents. Aftermarket weatherstripping and bug strips perform fine and cost roughly 30% less. We stock both on our Davie trucks and will show you the part before installation. If your unit was built between 2012 and 2019, check for the older flat-profile sill; CGI transitioned to a radiused sill in 2020, and the interlock weatherstrip changed shape accordingly. That is a compatibility gotcha that stalls a lot of orders.
Signs Your CGI Sliding & Patio Doors Is Failing

- The panel drags or requires shoulder force to move. This usually means the tandem roller assembly has flat-spotted or the axle has corroded. In Davie, we see this accelerate when irrigation spray hits the sill repeatedly; the hard water deposits pit the stainless axle over two to three years.
- Visible gap at the interlock or sill after the door is closed. The interlock weatherstrip has compressed past recovery or the panel has dropped on worn rollers. Air infiltration follows, and in summer months your cooling load climbs before you notice the draft.
- Lock tongue does not engage or the handle spins freely. The mortise lock body has cracked at the cam or the keeper has shifted in the jamb. On CGI units, the keeper is aluminum and can wallow out its screw holes if the door has been slammed repeatedly.
- Glass fogs between panes. The insulated glass unit (IGU) has lost its seal. This is not a frame issue, but Davie homeowners often discover it while inspecting the rollers. We replace IGUs in-frame when possible, avoiding full panel removal.
- Track surface is grooved or the panel jumps the rail. The stainless steel track insert has worn through to the aluminum substrate, or debris has embedded and scored the running surface. Once the substrate is exposed, the panel weight gallops the damage weekly.
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AfterReplacement Cost & What’s Included
For Davie, our installed pricing runs as follows: roller and tandem assembly replacement, $280-$420; track insert replacement, $340-$580; full mortise lock and handle set, $220-$390; IGU replacement (in-frame), $480-$760; complete panel replacement (single panel, impact-rated), $1,800-$4,200. These are written prices, documented on the measured survey you keep, and they do not change once work starts. Haven Clause 1.
What drives the range: panel size (standard 6/0 versus 8/0 or 12/0 multi-panel), impact rating (non-impact, HVHZ, or enhanced), and whether the frame substrate needs repair after track removal. Every job includes the documented photo record, the 365-Day Done Right Promise, and disposal of the old component. We do not charge separately for the survey or the estimate.
DIY or Call Us?

There is one safe check a homeowner can make: vacuum the track, then run a damp cloth through it and look for metal shavings or deep scoring. If you find either, stop. The panel on a CGI sliding door weighs 80 to 140 pounds depending on glass thickness, and the tandem rollers are under spring tension. Removing them without supporting the panel risks panel drop, glass breakage, or hand injury. We have reinstalled panels that homeowners dislodged attempting roller swaps; the repair cost doubles when the frame bends.
For everything else, the measured survey matters. We will show you the exact part, the installed price, and the photo record of the finished work. Call (754) 254-8492 to schedule your free estimate.
FAQs
How long do CGI sliding door rollers last in Davie?
In our experience across Davie, including the Pine Island Ridge area, standard tandem rollers last five to seven years with normal use and clean tracks. Homes with pool enclosures or heavy irrigation see closer to three years due to chlorinated water and hard-water scale. Call (754) 254-8492 for an exact quote on replacement - estimates are free.
Can the track be repaired instead of replaced?
Light surface scoring can sometimes be dressed with a track polishing tool, but once the stainless insert is worn through to the aluminum, replacement is the only fix that lasts. We have tried overlays; they lift within eighteen months. Call (754) 254-8492 for an exact quote - estimates are free.
How long does a full panel swap take?
A standard single-panel CGI replacement in Davie takes three to four hours from truck arrival to final sweep. Multi-panel units or jobs requiring frame repair run closer to a full day. We arrive with the panel pre-measured and pre-ordered to your opening. Call (754) 254-8492 to schedule your free estimate.
Do you stock CGI parts on the truck?
We carry rollers, tandem assemblies, track inserts, mortise locks, and weatherstripping for all three CGI series on every Davie truck. Full panels are pulled from our local inventory same-day for standard sizes; custom sizes or specialty glass laminates require three to five business days. Call (754) 254-8492 for an exact quote - estimates are free.
Sightline Windows & Doors Davie is an independent service provider and is not affiliated with CGI. We also stock parts for PGT, CWS, and ES Windows systems.
Written by Sonia Raman, Owner, Sightline Windows & Doors Davie at Sightline Windows & Doors Davie, serving Davie and nearby areas.










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