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CWS Window Replacement: The Westchester Owner’s Guide
CWS window replacement in Westchester typically runs $450 to $1,200 per window installed, depending on the series, glass package, and whether you’re replacing the sash, the insulated glass unit, or the entire frame. We stock the most common CWS-compatible components on our trucks and can usually complete a single-window swap the same day we arrive. Most Westchester homeowners discover they need one when a crank handle strips out, a balance spring lets the sash drop, or condensation starts fogging between the glass panes. If you’re looking at a window that won’t stay open, won’t seal, or won’t close tight, you’re in the right place.
We’re Winslow Windows & Doors. Ed Winslow founded this company in 2011, and we’ve been installing and repairing CWS windows in Westchester ever since. We’re an independent service provider, not affiliated with CWS, but we know these windows inside out, and we carry the parts that keep them working through South Florida summers and hurricane season.
Which CWS Models This Applies To
CWS makes several window lines that show up in Westchester homes, and the replacement parts are not universally interchangeable. The most common series we service are the CWS 400 and CWS 500 single-hung and horizontal roller windows, along with the CWS 9000 impact-rated line that many homeowners installed after Hurricane Andrew-era code changes.
Here’s the compatibility gotcha: CWS 400 series sashes will not fit CWS 500 frames, even if the glass measurements match. You have to look for the label. Open the window and check the top edge of the sash or the side jamb. CWS stamps a series number and a manufacturing date code there. If the label is faded or painted over, measure the sash thickness. The 400 series runs 1-3/8 inches thick, the 500 series runs 1-1/2 inches, and the 9000 impact series runs thicker still. Five minutes with a tape measure saves you from ordering the wrong part.
On OEM versus aftermarket: genuine CWS replacement parts are the safest choice for any window under a transferable warranty. But for older Westchester installations where the warranty has long expired, a quality aftermarket balance system or roller assembly often performs identically at roughly 30 percent less. We’ll tell you which makes sense for your window, and we’ll never sell you an OEM part when an aftermarket equivalent will do the same job for less.
Signs Your CWS Window Replacement Is Failing
- Sash won’t stay up. The block-and-tackle balance springs inside the jamb have lost tension or snapped. This is the single most common failure we see in Westchester, because humidity and salt air eat at the spring coils over time.
- Condensation between the glass panes. The insulated glass unit’s seal has failed. Once the argon or krypton gas leaks out, the window loses its insulating value and you get permanent fogging. The fix is a new IGU, not a new window frame.
- Crank handle spins without moving the sash. The operator gear inside the crank mechanism has stripped. CWS casement operators use a die-cast zinc gear that wears down after years of use, especially on windows that face the afternoon sun.
- Window won’t close square or latches loosely. The rollers on a sliding window have flat-spotted, or the frame has shifted slightly from settling. A loose latch is a security problem and an energy leak, not just a nuisance.
- Drafts or visible daylight around the sash edges. The weatherstripping has compressed or the sash has warped in the heat. Westchester’s summer sun can warp aluminum sashes on old CWS windows enough that air sealing becomes impossible without replacing the sash.
Replacement Cost & What’s Included
Here’s what CWS window replacement in Westchester actually costs, based on the jobs we’ve completed in Bird, Coral Estates, and Westchester proper:
- Replacement balance springs: $120-$180 per window, parts and labor.
- New roller assembly: $90-$150 per window.
- Crank operator replacement: $110-$160 per window.
- Insulated glass unit replacement: $250-$450 per sash, depending on glass package and Low-E coating.
- Full sash replacement (CWS 400 or 500): $350-$600 per window.
- Complete frame-and-all window replacement (impact-rated): $800-$1,200 per window, including installation and haul-away.
The range depends on window size, whether the glass is impact-rated, and whether the frame itself is still square and salvageable. Every quote we give is a fixed, line-item price, and we honor it. No change orders, no surprise upcharges. If the job is done wrong, the Done Right Promise means we come back and make it right. That’s not a warranty that evaporates when the check clears. My name is on the truck. That means I stand behind every window and door we touch.
DIY or Call Us?
You can safely handle a few CWS window issues on your own. A stripped crank handle is a two-screw swap if you’ve already ordered the right replacement. Cleaning debris out of a slider track and wiping down weatherstripping with silicone spray can quiet a noisy window and improve the seal for a few months.
But balance spring replacement is not a beginner’s project. Those springs are under significant torsion tension, and when they let go, they can take a strip of skin or worse. If your sash won’t stay up and you can hear or see a loose coil inside the jamb, leave it alone and call us. The same goes for any impact-rated CWS 9000 window. Those frames are sealed and reinforced differently, and trying to muscle a sash out of an impact frame can crack the frame or compromise the missile-rating you paid for. Give us a call at (850) 721-1218 and we’ll get you sorted.
FAQs
In Westchester’s humidity and salt air, CWS window balances and rollers typically last 10 to 15 years before they need replacement, while the frames themselves can last 30-plus years if properly maintained. If your home is within a few miles of the coast, expect the shorter end of that range. Call (850) 721-1218 for an honest assessment of your specific windows.
Yes, in most cases. Balances, rollers, crank operators, and insulated glass units can all be replaced individually without pulling the entire frame, which saves you hundreds of dollars per window. Call (850) 721-1218 and we’ll tell you which fix applies to your window.
A single balance, roller, or crank replacement usually takes 30 minutes to an hour once we’re on site. A full sash or insulated glass unit swap runs one to two hours per window, and we can typically complete same-day service for individual replacements in Westchester.
We stock common CWS 400 and 500 balance springs, rollers, and crank operators on our service trucks, so most Westchester calls are fixed in one trip. Less common sizes and impact-series parts may require a few days to order in. Call (850) 721-1218 with your model number and we’ll confirm availability before you commit to anything.
Get Your CWS Window Fixed Right in Westchester
When a window stops working, Westchester homeowners call the one down the road. We’ve been doing this since 2011, we’re locally owned by Ed Winslow, we publish our address and license number, and a live person answers the phone 24/7 so you’ll never sit through a voicemail loop. We also stock parts for PGT, CGI, and ES Windows. Plus, we offer free second opinions on written estimates, no trip charge inside our home county, $40 off any repair over $200, and a permanent 10% discount for seniors and veterans. Call (850) 721-1218 to schedule your free estimate.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Westchester and nearby areas.
Six Reasons Homeowners Choose Winslow Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.








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