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CWS Bathroom Remodeling: The San Antonio Owner’s Guide
If you have a CWS bathroom fixture or CWS-installed bathroom component that’s failed, a full CWS bathroom remodel in San Antonio typically runs $9,000 to $28,000 installed, depending on scope, materials, and what’s behind the walls once we open them up. We stock and install CWS-compatible bathroom hardware on most service calls, and we can usually diagnose the specific failure same-day. Most San Antonio homeowners discover the problem the same way: a leak that starts small under the vanity, a shower valve that won’t hold temperature, or tile that’s suddenly soft underfoot near the tub. By the time you’re reading this, the drip has probably already done more damage than you think.
Sawyer Remodel San Antonio is an independent service provider. We are not affiliated with CWS, but we know their fixtures, their valve bodies, their mounting systems, and their failure points well enough to give you a straight answer on repair versus replace.
Which CWS Models This Applies To
CWS bathroom fixtures show up in San Antonio homes under a few different labels: CWS by Design, the CWS Classic series, and older CWS units installed during tract-home builds in the early 2000s. The valve bodies in the Classic series are the most common failure point we see. They’re 1/2-inch NPT inlet with a 4-inch spread on the hot and cold, which matters because the replacement cartridge is model-specific, not universal.
The fastest way to identify your CWS model is to look at the escutcheon plate behind the handle. On the back side of that plate, CWS stamps a two-letter code followed by a four-digit number. If that’s worn off, measure the distance between the hot and cold inlet centers. If it’s 4 inches, you’re looking at a Classic series. If it’s 8 inches, you have a CWS Widespread. If it’s a single hole with no visible mounting plate, it’s the CWS Mono series. Do not buy a universal cartridge and hope it fits. We’ve pulled too many stripped valve stems out of San Antonio showers because someone forced the wrong part in.
For OEM versus aftermarket: OEM CWS cartridges are still available for most Classic and Widespread models, and we recommend them. The aftermarket brass cartridges some supply houses sell for CWS units wear out in 18 to 24 months in San Antonio water. The OEM cartridge, if you replace it before the valve body itself gets scored, will last 8 to 12 years in this market.
Styles & brands we work with
Signs Your CWS Bathroom Remodeling Is Failing
- Water temperature swings while the shower is running. This is almost always the pressure-balancing cartridge wearing out. The CWS Classic series uses a wax-element cartridge that degrades over time, especially with San Antonio’s hard water. You’ll notice it as sudden hot or cold spikes when someone flushes a toilet elsewhere in the house.
- A slow drip from the tub spout or shower head that never fully stops. The cartridge seat wears down, letting water seep past the seal. The drip will get worse over weeks, not days. It’s not going to fix itself.
- Soft spots in the subfloor near the tub or shower curb. This means water has been getting past a failed CWS drain gasket or a cracked shower pan for months. In San Antonio slab homes, we see this as tile that’s visibly settled or grout that keeps cracking in the same line.
- Black or dark staining at the bottom of the vanity or around the toilet base. That’s the classic sign of a slow supply-line leak, often from the original CWS flex connectors. They were never built to last 20 years in humid Central Texas bathrooms.
- The shower handle turns freely without changing water flow. The splines on the CWS cartridge stem have stripped against the handle. This one usually happens after someone over-tightens a loose handle, which is the single most common homeowner-installed failure we run into.
See the difference
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After
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AfterReplacement Cost & What’s Included
In San Antonio, a CWS bathroom remodel runs $9,000 to $28,000, and the spread comes down to three things: square footage, what’s behind the tile, and whether you’re moving plumbing. A typical 5×8 guest bath with a tub surround, new CWS-compatible fixtures, a new vanity, and standard tile work lands around $12,000 to $16,000. A primary bath with a walk-in shower, custom glass, and relocated plumbing pushes toward the top of the range.
Every quote includes the parts, the labor, the tear-out, the disposal, and the finish work. You get a written price before any work starts, so the invoice at the end matches the number you approved. If we find rot or plumbing that’s out of code once the walls are open, we stop and show you photos before doing anything beyond the approved scope. That’s not an add-on. That’s how we run every job under The Relay Standard. The work itself is covered by our 365-Day Done Right Promise: if it’s not done right, we make it right.
DIY or Call Us?
You can safely clean the aerator on a CWS faucet. You can tighten a loose handle with an Allen key. You can replace a shower head. That’s about where the safe zone ends for a homeowner. Opening a CWS valve body, pulling a cartridge, or pulling up tile to check for water damage is not a weekend project. If you strip the stem or crack the valve body, the repair cost just tripled.
And if the failure is a leaking shower pan or a rotted subfloor, the water is already doing structural damage. That’s not a matter of replacing one part. That’s a remodel. The good news is you won’t pay for a mystery. Our estimate is free, it’s in writing, and it covers the actual scope of the failure. Call (432) 547-6806 and we’ll tell you exactly what we’re looking at before any tools come off the truck.
FAQs
In San Antonio’s hard water, a CWS valve cartridge typically lasts 8 to 12 years before the temperature control starts to degrade. The plumbing connections, gaskets, and flex lines usually fail around year 15 to 20. If your CWS fixtures are original to a home built before 2010, you’re living on borrowed time. Call (432) 547-6806 and we’ll tell you whether a simple cartridge swap will buy you more years, or whether you’re better off putting that money toward a full remodel.
Yes, in most cases the valve cartridge, gaskets, or supply lines can be replaced individually. We stock OEM CWS cartridges for the Classic and Widespread series and carry most common gasket sets. The repair makes sense when the surrounding tile and subfloor are solid. If the failure has already leaked into the wall cavity or under the floor, the repair is a bandage on a bigger problem. We’ll give you the honest call before you spend anything.
A standard 5×8 bathroom remodel in San Antonio takes 2 to 3 weeks from tear-out to final walkthrough. A primary bath with a walk-in shower and custom glass runs 4 to 6 weeks. If we find structural rot or plumbing code issues once we open the walls, that adds time, but we’ll tell you before we do any of it. You’ll get photo updates and a clear schedule before we start, so you’re not guessing when it’ll be done.
We stock OEM CWS cartridges for Classic and Widespread models, common gasket sets, and flex connectors on most service trucks. If your specific part isn’t on the truck, we can typically have it in hand within one to two business days from our San Antonio suppliers. We also carry compatible fixtures from Kohler, Moen, and Grohe if you’d rather swap the whole valve out.
No. The price we put in writing is the price you’ll pay, unless we uncover hidden damage that requires scope changes you approve first. If we find rot behind the tub or a plumbing line that’s not up to code, we’ll show you photos, give you a line-item change order, and get your sign-off before doing that work. You never pay for a surprise.
Call (432) 547-6806 to schedule your free estimate. We’ll look at the fixture, tell you what failed, and give you a written price before any work starts. The craft comes first. Everything else follows.
Written by Luca Romano, Owner, Sawyer Remodel San Antonio at Sawyer Remodel San Antonio, serving San Antonio and nearby areas.
