CWS Window Replacement Nationwide | Winslow Windows & Doors

CWS Window Replacement: The Boca Raton Owner’s Guide

We stock and install CWS-compatible window replacement parts across Boca Raton, with most replacements running $275 to $850 installed depending on the specific hardware, sash, or balance system your window needs. We keep common CWS components on our trucks, so a technician can often complete the swap in a single visit. Most Boca Raton homeowners discover a failed CWS part the hard way: a window that suddenly won’t stay up, a crank handle that spins without moving the sash, or a locking mechanism that no longer engages. After a decade and a half of South Florida humidity and salt air, certain CWS components simply wear out before the glass ever does.

Call (561) 816-5648

Winslow Windows & Doors is an independent service provider and authorized CWS installer. We’re not affiliated with the manufacturer, but we work with their product lines every week and know exactly which replacement parts match which CWS series.

Which CWS Models This Applies To

CWS has produced several residential window lines over the years, and the replacement part you need depends almost entirely on which series is stamped on your window. The most common CWS windows we service in Boca Raton fall into three groups: single-hung and double-hung aluminum windows, horizontal roller windows, and casement or awning windows with crank hardware. Each uses different balances, rollers, and lock assemblies, and they are not interchangeable.

Here’s the compatibility gotcha we see constantly: a CWS single-hung from the early 2000s takes an entirely different spiral balance than one made in 2018, even if the window dimensions are identical. The series matters more than the size. To find it, open the sash and look for a small silver or white label etched on the frame edge, usually near the top or bottom corner. It will show a model or series code, often starting with “CW” followed by digits. If the label has faded away, we can still identify the series by measuring the balance channel depth, shoe width, and the stamped weight rating printed on the old balance itself.

When it comes to OEM versus aftermarket parts for CWS, we tell homeowners the truth: CWS OEM parts are well-made, but many of their balances and rollers were produced by the same third-party manufacturers that supply the aftermarket industry. That means a quality aftermarket replacement from a name like Caldwell or Amesbury often matches or exceeds OEM performance at a meaningfully lower price. For locks and handles, we recommend staying with OEM CWS parts because the screw patterns and finish match perfectly. For balances, rollers, and weatherstripping, we’re comfortable installing tested aftermarket equivalents and warranting them the same way.

Signs Your CWS Window Replacement Is Failing

• Upper sash drops when you let go. The spiral balance or block-and-tackle system has lost tension. This is the single most common CWS failure we replace in Boca Raton, especially on windows facing direct afternoon sun where internal lubrication breaks down faster.
• Window feels heavier every month. When a balance starts wearing, the friction increases before it fails completely. If you’re having to muscle the sash more than you did last year, the part is telling you it’s near the end.
• Crank handle spins freely or grinds. On CWS casement windows, the operator gear teeth strip after years of salt-air exposure. The handle turns but the sash barely moves. This is a replace-the-operator job, and the part is specific to the crank arm length.
• Sash doesn’t seal evenly against the frame. Worn rollers on horizontal windows or degraded weatherstripping on hungs means your AC is leaking out the gap. You’ll feel it as a warm draft even when the window is closed. In Boca Raton’s wet season, moisture gets in the same way.
• Lock won’t engage or feels loose. The CWS cam lock and keeper have a small built-in tolerance. After thousands of actuations, the lock cam wears down and stops catching. On older CWS series, the plastic lock housing also cracks from UV exposure, and there’s no safe way to repair it, only replace.

Replacement Cost & What’s Included

In Boca Raton, CWS window replacement pricing breaks down like this:

• Spiral or block-and-tackle balance replacement: $275 to $395, including both sides and labor
• Roller replacement for horizontal CWS windows: $225 to $340, depending on whether it’s a tandem or single roller assembly
• Lock or cam lock replacement: $175 to $240, including the keeper and alignment adjustment
• Casement crank operator and handle: $320 to $485, OEM CWS parts installed
• Weatherstripping and seal replacement: $180 to $280, full perimeter, with silicon and felt options matched to your series

No charge to come out and assess the window if you’re in our home county. Every written estimate is a line-item breakdown, so you see exactly what the part costs and what the labor costs before you say yes. The labor quote we give is the labor you pay: if a window fights us for three hours, that’s our problem, not a change order on your invoice. All window hardware we install is covered by a workmanship warranty, and the parts carry their manufacturer’s warranty on top of that. If we put a part in and it fails during the warranty window, we come back and replace it, period.

DIY or Call Us?

Replacing window hardware looks like a YouTube-level project until you’re wrist-deep in a sash that weighs forty pounds and is eight feet off the ground. On CWS single-hung and double-hung windows, the spiral balance holds tension against the sash weight, and releasing it incorrectly can send that sash down on your fingers or out of the channel entirely. We’ve repaired more than a few DIY attempts in Boca Raton where the homeowner replaced one side, left the other side worn, and then wondered why the window still wouldn’t stay up. A balance pair that isn’t matched in tension will destroy itself within months.

What you can safely do: confirm the series code on the label, snap a photo of the old hardware still installed, and call us with that information. That lets us bring the right CWS-compatible part on the first trip. If you’ve already got the sash out and just need a tech to finish the job, we’ll still come out, but we’ll tell you the same thing we’d tell our own neighbor: some things are worth a professional’s hands. Window balances are one of them. Call (561) 816-5648 and we’ll walk you through what you’re looking at before we ever schedule the truck.

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