Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
CGI Window Replacement: The West Park Owner’s Guide
CGI window replacement in West Park typically runs $340-$780 per opening for standard sizes, with most jobs scheduled within 48 hours of survey. We stock CGI-compatible frames, sashes, and hardware for the common series, and we carry the measured survey document through to final invoice - no change orders, no surprises. Most West Park homeowners discover a failing CGI window when the sash won’t stay open, the lock no longer seats flush, or they feel air movement around a frame that used to seal tight against summer humidity.
Which CGI Models This Applies To
We replace parts and full units across CGI’s residential lineup: the Estate Series (aluminum impact), Sentinel Series (vinyl impact), and Targa Series (non-impact vinyl common in West Park homes built 2015-2020). The model number lives on a sticker in the top track or jamb - usually a 6-10 digit code starting with the series prefix. If that sticker’s painted over or sun-faded, we measure the rough opening, sash dimensions, and glazing pocket depth to identify the right replacement.
CGI’s Estate aluminum frames use a proprietary thermal break and glazing bead profile that doesn’t interchange with PGT or CWS equivalents - the snap-in vinyl glazing bead on an Estate 200 series, for example, has a .090″ wall thickness that aftermarket generics rarely match correctly. For hardware, we source OEM CGI lock sets and keep select aftermarket equivalents on the truck for discontinued series, but we always flag when we’re substituting so the homeowner knows before installation starts. Sightline Windows & Doors West Park is independently owned and operated - we are not affiliated with CGI Windows & Doors - and we work with their specifications daily.
Signs Your CGI Window Replacement Is Failing

- Sash drops or won’t stay open. The balance system - either a coil spring or block-and-tackle assembly depending on CGI series - has lost tension. In West Park’s salt air, balance corrosion accelerates; we see this first in east-facing units within 8-12 years of install.
- Visible daylight or air infiltration at the frame perimeter. The glazing bead has hardened or the frame-to-wall sealant has separated. Florida’s thermal cycling expands and contracts aluminum frames differently than the stucco surrounding them, working the sealant loose over five to seven years.
- Lock tongue doesn’t engage or handle spins freely. The multipoint lock mechanism has worn or the keeper has shifted. CGI’s older Estate locks used a zinc alloy that fatigues; current OEM replacements are brass-bodied and last longer.
- Condensation between glass panes. The insulated glass unit (IGU) seal has failed, breaking the argon fill and fogging the sightline. Once the desiccant saturates, the clouding is permanent - the IGU needs replacement, not defogging.
- Frame corner gaps or visible bowing. Thermal expansion stress or improper original shim support has pulled the frame out of square. This worsens incrementally; left alone, it stresses the sash and hardware until both fail.
Before
AfterReplacement Cost & What’s Included
| Component | Typical Range (West Park) |
|---|---|
| IGU replacement (glass only) | $280-$440 |
| Sash replacement (frame + glass) | $420-$680 |
| Full frame replacement (standard size) | $620-$980 |
| Hardware set (lock, handle, keepers) | $140-$260 |
| Balance system repair | $180-$320 |
What drives the range: unit size, whether the original frame is salvageable, and whether the opening needs re-flashing to current Florida Building Code. Every quote we write in West Park starts with the measured survey you keep; that document and the final invoice are the same scope, per Haven Clause 1. Haven Clause 4 means you get a documented photo record of the completed work. The 365-Day Done Right Promise covers installation and materials - if the seal fails or the hardware doesn’t seat, we return and make it right.
DIY or Call Us?

There’s safe checking, and then there’s work that belongs to a crew with the right tools and the right insurance.
What you can do: verify the model sticker location, photograph the failure, and check whether the issue is debris in the track (vacuum it out) or a painted-shut sash (don’t force it - the vinyl or aluminum will crack). These checks cost nothing and sometimes solve the problem.
What we don’t recommend: removing a fixed sash or IGU yourself. CGI impact-rated units weigh 40-80 pounds depending on size, and the glazing beads release with a specific sequence - wrong order, and the glass drops. The balance systems on larger Estate units are under spring tension that can release unpredictably. We carry the suction cups, glazing shims, and setting blocks on every truck, and our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3. If you’re weighing DIY to save money, bring us any competitor’s written estimate; our Free Second Opinion means we’ll review it at no charge and tell you exactly where the scope differs from what we’d measure.
FAQs
Expect 15-25 years for the frame and 8-12 years for the IGU seal in South Florida’s coastal environment. East-facing units see salt spray and UV exposure that accelerates hardware corrosion and glazing bead hardening; we see more frequent balance and lock replacements in those exposures. Call (786) 685-4706 for an exact quote on your specific unit - estimates are free.
A failed IGU seal cannot be repaired to factory performance. Defogging services exist, but they don’t restore the argon fill or the Low-E coating’s integrity, and the fog returns. We replace the IGU with a new unit that matches the original U-factor and SHGC ratings. Call (786) 685-4706 for an exact quote - estimates are free.
A single sash or IGU swap takes 2-3 hours on site; a full-frame replacement runs 4-6 hours per opening, plus cure time for sealants and perimeter foam. We schedule West Park jobs with arrival windows, not all-day waits - Haven Clause 2. Call (786) 685-4706 to book a measured survey.
We carry common Estate and Sentinel hardware, glazing beads, and balance components for the series most prevalent in West Park. Full sashes and IGUs are ordered to measured size - no stock unit fits every opening exactly, and Haven Clause 1 means we measure before we quote, then quote before we order. Call (786) 685-4706 to schedule your survey.
We’ve worked in West Park long enough to know the homes near Sunview Park still carry frames that haven’t been opened since the Reagan administration, and we’ve measured enough retrofits to know that “standard size” is a fiction until the tape comes out. Measure it right, say what it costs, do the work. That’s how we handle every CGI window replacement in West Park - and how we’ve handled 18,000+ openings since 2012.
Call (786) 685-4706 to schedule your free measured survey. You’ll keep the document, and the price we write on it is the price on the final invoice.
Written by Sonia Raman, Owner, Sightline Windows & Doors West Park at Sightline Windows & Doors West Park, serving West Park and nearby areas.










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