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CWS Bathroom Remodeling: The Los Angeles Owner’s Guide
A CWS bathroom remodel in Los Angeles typically runs $10,620 – $33,040, depending on whether you’re replacing a single fixture or gutting the whole room down to the studs. If you’ve got a CWS product that’s failing, whether it’s a vanity that’s swollen at the base, a shower valve that drips, or tile that’s cracked along a seam, we stock compatible replacement parts and install them with a written price before we open the wall. Most owners figure out something is wrong when the problem is already visible: water staining on the ceiling below, a drawer face that won’t sit flush, grout that keeps crumbling no matter how many times it’s re-caulked.
Which CWS Models This Applies To

Here’s the thing about CWS bathroom components: the brand spans a few different product generations, and the part numbers aren’t always printed where you’d expect. On CWS vanities, look for a small white sticker inside the left cabinet wall, up near the top edge. That label usually carries the model code and a manufacturer date. For CWS shower valves and trim kits, the model number is often stamped on the escutcheon plate behind the handle, which means you’ll need to remove the handle to read it.
What we see most often in Los Angeles homes is a mismatch between a CWS faucet body and a replacement cartridge bought off a generic parts site. The threading looks right, the cartridge seats, and it still leaks because the O-ring tolerances are slightly off. That’s a ten-dollar mistake that turns into a hundred-dollar callback. We default to OEM CWS parts when they’re still in production, and use quality aftermarket equivalents only when the OEM line has been discontinued. We’ll tell you which is which before you spend a dollar.
Styles & brands we work with







Signs Your CWS Bathroom Remodeling Is Failing
- Water staining on the ceiling below. This is the one that gets people’s attention. It means the waterproof membrane or a supply line fitting has failed behind the tile, and water is traveling along a joist. By the time the stain shows, the leak has usually been active for weeks.
- Shower valve takes five seconds to find the temperature. The pressure-balancing cartridge inside a CWS valve wears out over time, especially with Los Angeles’s hard water. Mineral scale builds up on the internal seals, and the valve starts hunting for temperature on its own.
- Vanity doors won’t close square. A CWS vanity with a particleboard core absorbs moisture from the bathroom air. After a few years of shower steam, the cabinet sides swell and the hinges pull out of the substrate. You can adjust the hinge once, maybe twice. After that, the screw holes are stripped.
- Grout that re-cracks within a month of re-grouting. Grout is rigid. When a CWS shower pan or wall substrate flexes because of movement in the subfloor, the grout cracks along the joint lines. Adding new grout over old cracked grout doesn’t fix the flex. It just hides it for a few weeks.
- A persistent sewer smell with no visible leak. This usually points to a failed wax ring under the toilet, but with CWS remodeled bathrooms, we also see it when the P-trap under a new vanity was installed too shallow or the vent line was kinked during the remodel. The water seal evaporates, and sewer gas finds its way in.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included

In Los Angeles, a bathroom remodel that involves replacing failing CWS components runs $10,620 – $33,040, with most single-bathroom projects landing in the $14,000 – $22,000 range. What drives that spread? A tub-to-shower conversion with a curbless pan and frameless glass sits at the higher end. A straightforward vanity replacement with a new countertop and faucet is closer to the bottom of the range. Tearing out and replacing a shower surround that has water damage behind it lands somewhere in the middle, depending on how much framing repair is involved.
Every quote includes the parts, the labor, the demolition and disposal, and a written 365-Day Done Right Promise. If something fails inside that year, we come back and fix it at no charge. No service call fee, no re-inspection fee. The price we hand you before work starts is the price on the invoice.
DIY or Call Us?
Some things are fine to check on your own. You can remove a shower handle and look for mineral buildup on the cartridge stem. You can tighten a toilet supply line if it’s dripping at the nut. You can re-caulk a vanity seam if the old bead has dried out and split.
Here’s where it goes wrong: cutting into drywall to find a leak and hitting a supply line, pulling a shower valve without shutting off the water at the main, or replacing a CWS vanity and discovering the shutoff valves are too close together for the new cabinet. We’ve opened walls behind a CWS shower in Los Angeles and found black mold running halfway up the studs because a homeowner sealed over a wet substrate with silicone and thought that fixed it. If water is involved and you’re not sure where it’s going, call (213) 277-6578. We’ll tell you over the phone whether it’s something you can handle or something worth having us look at.
FAQs

CWS vanities and shower components generally last 8 to 15 years in Los Angeles, with the shorter end of that range applying to homes with unsoftened hard water and bathrooms that lack a proper exhaust fan. Shower cartridges often need replacement around the 7 to 10 year mark, even when the surrounding tile and trim are still in good shape.
If you’re noticing temperature instability or leaks and your fixture is past that window, call (213) 277-6578 for an exact replacement quote, estimates are free.
Cartridges, supply lines, hinges, and wax rings can be repaired or swapped without tearing anything out, and we do those repairs regularly. The line is drawn when the failure is behind the tile or inside the cabinet substrate. A swollen particleboard vanity or a leaking shower pan membrane cannot be reliably patched, and any repair short of replacement will fail again.
A simple vanity and faucet swap takes a single day. A shower surround or full tub-to-shower conversion runs three to six working days, including demolition, substrate repair, waterproofing, tile or surround installation, and plumbing trim-out.
Call (213) 277-6578 and we’ll give you a realistic schedule for your specific scope before you commit to anything.
We keep common CWS cartridges, supply lines, and mounting hardware on the truck, and we order model-specific CWS parts direct for the jobs that need them. We also stock parts for KraftMaid cabinetry, Cambria and Silestone countertops, so when a CWS vanity needs a matching top or a new sink cutout, we’re not sourcing it from three different suppliers.
Written by Trevor Nash, Owner, Penhallow Remodeling Los Angeles at Penhallow Remodeling Los Angeles, serving Los Angeles and nearby areas.


