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CGI Sliding & Patio Doors: The Pinecrest Owner’s Guide
CGI sliding and patio door repairs in Pinecrest typically run $340-$890 for roller, track, and lock hardware replacements, while full panel or frame-section replacements range $1,800-$4,200 installed depending on series and glass package. We stock CGI-compatible rollers, tandem assemblies, and mortise locks for same-day repair on most common series. Most Pinecrest homeowners discover a problem when the door sticks in the track during summer humidity or when the lock no longer engages flush after a storm season.
Which CGI Models This Applies To
CGI’s sliding and patio door lineup breaks into three series that share some hardware but not all. The Estate Series uses a heavier tandem roller rated for panels up to 350 lbs, while the Sentinel and Targa Series run a lighter single-roller assembly that fails earlier under the same load. The part number you need is stamped on the roller housing or printed on a white label inside the frame header, visible when the panel is in the open position.
Here’s the compatibility gotcha: CGI revised its roller axle diameter from 7/16″ to 1/2″ in 2019, and the housings are not interchangeable. We’ve seen Pinecrest homeowners order the “correct” Estate Series roller online only to find it won’t seat in pre-2019 frames. We carry both axle sizes and verify with a caliper on site. For locks, the Estate Series uses a two-point mortise with a 45-degree keyway; Sentinel and Targa use a single-point hook bolt. Aftermarket equivalents exist for rollers (Klein or Slide-Ezz) but we source OEM CGI locks because the striker alignment tolerances are too tight for generic copies.
Signs Your CGI Sliding & Patio Doors Is Failing

- The panel drags or requires shoulder pressure to move. This usually means the roller bearings have flattened or the axle has bent under load. In Pinecrest, we see this accelerate when homeowners pressure-wash debris into the track, grinding the rollers with silica grit.
- The lock thumbturn rotates but the bolt doesn’t throw. The internal cam has sheared or the linkage has slipped its track. CGI’s zinc-alloy cams are prone to this after five to seven years of salt-air exposure, especially on east-facing doors.
- Visible daylight between the panel and jamb when closed. The panel has dropped on worn rollers or the header track has bowed. Either way, the weatherstrip no longer compresses evenly and your cooling load rises.
- Grinding or popping sound during operation. The roller has cracked and is riding on the housing, or the track has developed a burr from metal-on-metal contact. Continuing to operate it will groove the track and turn a $340 roller swap into a $1,200 track replacement.
- Condensation between glass panes on impact-rated panels. The IG unit seal has failed. CGI’s impact glass uses a dual-seal system, but South Florida’s thermal cycling eventually wins. This is never a hardware fix; the glass pack needs replacement.
Before
AfterReplacement Cost & What’s Included
| Service | Typical Range in Pinecrest | What’s Included |
|---|---|---|
| Roller assembly replacement (pair) | $340-$520 | OEM or verified aftermarket rollers, track cleaning, panel rehang, operation test |
| Lock/mortise replacement | $280-$450 | OEM lock body, striker adjustment, keyway lubrication |
| Track section repair or replacement | $680-$1,200 | Stainless track insert or full extrusion, panel removal and reset |
| Full panel replacement (impact-rated) | $1,800-$3,400 | Measured survey, panel order, installation, disposal, photo record |
| Full frame replacement (impact-rated) | $3,200-$4,200 | Complete removal, new frame, panel, hardware, permit coordination if required |
What drives the range: panel size (CGI makes up to 12′ wide multi-slide units), glass package (clear vs. Low-E vs. impact laminate), and whether the original installation used shims that let us pull the panel without disturbing stucco. Our quote is the measured survey you keep; the invoice matches it. Haven Clause 1, Have it in writing.
DIY or Call Us?

There is one safe owner check: open the door six inches, grip both sides of the panel, and lift. If it rises more than 3/8″ before the rollers contact the track, they’re worn. If it doesn’t rise at all, they’re already seized and you’re grinding metal.
What goes wrong with DIY: CGI panels weigh 180-340 lbs depending on series and glass. Without a suction cup rig and two people, you risk panel drop, frame twist, or personal injury. We’ve been called to Pinecrest jobs where a homeowner cracked the impact glass trying to tilt a panel for roller access. That turns a $400 repair into a full panel replacement. The rollers also sit on an adjustable carriage with a specific torque spec; overtighten and you strip the frame rail. We carry the tools, the parts, and the liability coverage. Measure twice. Quote once. No surprises at the invoice.
FAQs
How long do CGI sliding door rollers last in Pinecrest?
In coastal South Florida, expect eight to twelve years on OEM rollers with basic track maintenance, or five to seven if the door faces direct salt spray and never gets lubricated. The humidity doesn’t kill them; the grit that humidity carries into the track does. Call (786) 442-3200 and we’ll inspect the wear pattern to give you a realistic remaining lifespan.
Can the lock be repaired instead of replaced?
Sometimes. If the thumbturn spins freely, the internal cam is sheared and replacement is the only fix. If the bolt is sticky, we can disassemble, clean, and lubricate the mechanism for about half the cost of a new lock. We won’t know until we open it. Bring us any competitor’s written estimate and we’ll give you a free second opinion under Haven Clause 5.
How long does a roller or lock replacement take?
Most hardware swaps run ninety minutes to two hours on site, assuming the panel removes cleanly and the frame rail isn’t damaged. Full panel or frame replacements require a second visit after measurement and ordering, typically two to three weeks for CGI impact-rated glass. We document every step with photos you receive at completion.
Do you stock CGI parts on the truck?
We carry rollers, tandem assemblies, and mortise locks for Estate, Sentinel, and Targa Series in both pre- and post-2019 axle sizes. Full panels and frame sections are ordered to measured spec; we don’t warehouse glass because every opening is slightly different. Sonia Raman reviews the shop drawings before any order is placed.
Sightline Windows & Doors Pinecrest is an independent service provider and is not affiliated with CGI. We also stock and install parts for PGT, CWS, and ES Windows sliding and patio door systems.
Call (786) 442-3200 to schedule your free estimate. A live person answers, 24/7. We’ll measure, write the price, and leave you the document before any work starts.
Written by Sonia Raman, Owner, Sightline Windows & Doors Pinecrest at Sightline Windows & Doors Pinecrest, serving Pinecrest and nearby areas.










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