CWS Window Installation Nationwide | Sightline Windows & Doors Lantana

CWS Window Installation: The Lantana Owner’s Guide

CWS window installation in Lantana typically runs $340-$780 per opening for standard replacement, with impact-rated CWS units starting around $620 installed. We stock CWS-compatible frames, sashes, and hardware for same-day installation on most series, and every job ships with the measured survey you keep and the written price we honor. Most Lantana homeowners discover their CWS window is failing when the sash won’t stay open in a gust, or when they notice the frame gap widening after a summer storm off the Atlantic.

Call (561) 461-2062

Which CWS Models This Applies To

CWS manufactures three residential lines we see in Lantana: the Aria impact-rated vinyl series, the Serenity non-impact vinyl line, and the custom aluminum commercial-grade frames used in beachfront condos along Ocean Avenue. The Aria 100 and 200 series use a 2-5/8 inch frame depth with reinforced corner gussets; the Serenity line runs a slimmer 2-1/4 inch profile without the impact reinforcement. Check the spacer bar label inside the sash track, or the etched code on the glass corner, usually formatted as “CWS-AR-###” or “CWS-SR-###” followed by a date stamp.

We install OEM CWS units ordered direct from the factory in Hialeah, plus verified aftermarket equivalents from our PGT and CGI lines when the CWS lead time stretches past what salt-air exposure allows. The aftermarket decision hinges on the NFRC label match, not the logo. We’ve seen homeowners in Hypoluxo order a “compatible” sash that missed the SHGC by 0.08 points and failed inspection. We document the exact U-factor, SHGC, and DP rating on your written quote before ordering.

Signs Your CWS Window Installation Is Failing

• Sash drops or won’t stay open. The coil balance system has lost tension. CWS uses a constant-force coil spring in the Aria series, and after 8-12 years of Lantana humidity cycling, the spring housing corrodes. We stock the 15-pound and 23-pound coils on our trucks.
• Visible gap between frame and wall. The installation flange has pulled, or the original shims compressed. This is common in 2015-2019 installs where builders used non-stainless fasteners within a mile of the coast. Salt air attacks standard screws in 18-24 months.
• Condensation between glass panes. The insulated glass unit (IGU) seal failed. CWS IGUs carry a 20-year glass warranty, but the labor to swap the sash is not covered. We measure the daylight opening, order the replacement IGU, and stamp the warranty transfer on your paperwork.
• Crank handle spins without moving the sash. The operator gearbox stripped. CWS uses a Truth Hardware operator on most casement units; the 15-series and 39-series gears are not interchangeable. We carry both on the truck and verify the arm length before leaving the warehouse.
• Frame corner separation or vinyl warping. Heat buildup in dark-colored frames facing west, compounded by poor installation clearance. We’ve measured frame temperatures of 165°F on CWS bronze units in Lantana’s Lake Osborne corridor. The fix is a full sash replacement with proper expansion gaps.

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Replacement Cost & What’s Included

The range depends on three factors we document on your measured survey: whether the opening requires stucco repair, whether the original install used proper flashing tape (many 2016-2018 Lantana builds did not), and whether the CWS unit is still in production or requires custom ordering. Our written quote lists each line item. The 365-Day Done Right Promise covers labor and installation materials; CWS factory warranties cover the product itself. No change orders. No surprises.

DIY or Call Us?

There’s a safe middle ground here. A homeowner can check the CWS label location, photograph the failure, and verify whether the unit is still under CWS’s 20-year glass warranty. What goes wrong fast: removing a CWS impact-rated sash without supporting the frame can twist the jamb, and once a vinyl jamb bows past 1/8 inch, the replacement sash will never seal correctly. We’ve been called to three Lantana homes this year where a DIY sash swap turned into a full-frame replacement because the original shims fell and the frame settled.

If you see corrosion on the balance housing, or if the frame gap exceeds a quarter inch, the fix involves structural support and proper flashing integration. That’s where we come in. Call (561) 461-2062 and we’ll schedule a measured survey. You’ll get the written price before any work starts, and the photo record when it’s done.

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