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CWS Windows & Doors: The San Antonio Owner’s Guide
We stock and install CWS-compatible window and door parts across San Antonio, with most replacements running $250 to $1,800 depending on the part. If you have a cracked sash, a failed balance, a sticky roller, or a door panel that won’t seal, we can usually match the part to your CWS model in one visit. Most San Antonio homeowners discover the failure the hard way: a window that suddenly drops when opened, a patio door that grinds instead of glides, or a frame that lets in the July heat and the first cold front of November equally well.
You’ll notice the symptom before you know the part name. That’s fine. What matters is matching the replacement to your specific CWS series, not forcing a generic part into a frame it was never designed for. We see that mistake often enough that it’s worth saying plainly: CWS builds several distinct window and door lines, and a part from one series does not always fit another, even when the dimensions look close. We’re an independent San Antonio service provider, not a CWS affiliate, which means we tell you honestly whether an OEM part or a quality aftermarket equivalent makes more sense for your situation.
Which CWS Models This Applies To
CWS manufactures both vinyl and aluminum window lines, along with sliding patio doors and hinged entry doors. The most common CWS products we service in San Antonio are single-hung and horizontal slider windows, many of them installed in production-built homes across the north, west, and northeast sides of the city. Your window or door will have a small identification label, typically on the inside edge of the sash or the top of the frame, showing the series code, glass size, and date of manufacture. If the label has faded or peeled, we cross-reference the frame dimensions and the glass thickness to identify the correct series.
The compatibility gotcha we see repeatedly: CWS balance systems are sized by window sash weight, not just sash width. An owner measures a 32-inch sash, orders a replacement balance online, and finds the tension is wrong because the replacement was spec’d for single-glazed glass while their window is double-glazed. That extra glass changes the sash weight by several pounds, and the wrong balance either fights the homeowner or fails within months. The same logic applies to door rollers: CWS patio doors use at least two roller styles depending on the door series and year, and the wrong roller height leaves a door that drags or sits cocked in the track. We match the part to the actual sash or panel on site, which is why we carry a range of CWS-compatible balances, rollers, locks, and weatherstripping on the truck.
Styles & brands we work with
Signs Your CWS Windows & Doors Is Failing
- The window drops when you open it, or won’t stay up at all. The coil or spiral balance inside the frame has lost tension or snapped. This is the most common CWS failure we see in San Antonio, and the heat accelerates it. Replacing the balance pair typically fixes both sashes at once.
- The window feels heavy or binds halfway up. The pivot shoe or the balance carrier has cracked, often because a previous repair forced the window against a bent track. If you keep cranking, you’ll damage the sash corners next.
- The patio door sounds like it’s rolling over gravel. CWS door rollers lose their bearings after years of dust and humidity working into the housing. San Antonio’s caliche soil is brutal on door tracks. Once a roller seizes, it flattens a flat spot into the wheel and scores the track itself.
- The lock no longer catches, or catches only when you lift the sash. The keeper or the latch has drifted out of alignment, usually from a sagging frame corner or worn weatherstripping holding the panel off-center. Forcing the lock just bends the hardware further.
- Dust, water, or daylight shows at the frame edges. Compression weatherstripping on older CWS windows loses its memory after a decade of Texas sun, and once it’s flat, the window leaks air and water along the sill. Sealing over it hides the leak; replacing the strip fixes it.
See the difference
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AfterReplacement Cost & What’s Included
For San Antonio CWS windows and doors, here is what we charge, installed:
- Balance or pivot shoe replacement: $250 – $450 per window, parts and labor included.
- Sash lock and keeper replacement: $150 – $300 per window.
- Patio door roller replacement: $275 – $525 per door, including track cleaning and alignment.
- Weatherstripping replacement for a full window or door: $200 – $550 depending on how many linear feet and whether the sashes need removal.
- Full glass unit replacement in an existing CWS frame: $400 – $1,200 depending on glass package, size, and whether the sash is salvageable.
The price spread comes down to whether the frame itself is still square and whether one sash or both need work. Every quote is written before we start, and it covers the part, the labor, and the cleanup. If the work fails within 365 days of completion, we come back and make it right at no cost. That’s the Mason Remodeling standard, and it applies to a $150 lock swap the same way it applies to a $45,000 kitchen rebuild.
DIY or Call Us?
You can safely do two things before you pick up the phone: clean the track and check whether any screws are visibly loose on the hardware. That’s the honest limit for most people. Window balances on CWS units are under spring tension, and releasing that tension without the right tool turns a sash into a projectile. We’ve also seen homeowners strip the adjustment screws inside pivot shoes, which turns a $250 balance replacement into a full frame rebuild. Door rollers are less dangerous but just as easy to misdiagnose, because you have to pull the panel to measure the old wheel correctly.
If your window or door is acting up in San Antonio, call (254) 269-5071. We’ll tell you over the phone whether it sounds like a balance, a roller, or something else entirely. Then we’ll give you a written price before any work starts.
FAQs
CWS windows and doors in San Antonio typically last 20 to 30 years before major component failure, but individual parts fail earlier: balances often give out around 10 to 15 years, and weatherstripping around 8 to 12 years, simply because the heat and UV exposure break down plastics and coil springs faster here than in most climates. Call (254) 269-5071 if your windows are in that age range and you’re noticing stiffness or drafts.
Coil balances and door rollers are sealed units, and once the coil loses tension or the roller bearing seizes, the part is replaced rather than repaired. In San Antonio’s heat and dust, there isn’t a realistic repair path for a worn coil spring. Call us at (254) 269-5071 and we’ll confirm what needs replacing based on the window or door series.
Most balance, lock, and roller replacements on CWS windows and doors take 30 to 60 minutes per unit once the part is in hand, and we carry the most common CWS-compatible parts on our trucks across San Antonio. Full glass unit replacements take longer because the order is custom-cut to your sash. Call (254) 269-5071 with your window or door details and we’ll give you an honest time frame.
We stock the most common CWS-compatible balances, pivot shoes, locks, and door rollers on our trucks, and we also keep parts for KraftMaid, Cambria, and Silestone cabinetry and surfaces when the job calls for them. If your CWS model is an older or less common series, we measure on site and have the exact part ordered within one business day. Call (254) 269-5071 to check whether your part is on the truck or needs ordering.
Written by Isaac Pruett, Owner, Mason Remodeling Co San Antonio at Mason Remodeling Co San Antonio, serving San Antonio and nearby areas.
