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Tamko Bathroom Remodeling: The Woodland Hills Owner’s Guide
If you have a Tamko product in your bathroom and something’s failed, we stock Tamko-compatible replacement materials and install them throughout Woodland Hills. A full Tamko bathroom remodel in Woodland Hills typically runs $9,000 to $28,000 installed, depending on the size of the space and what’s being replaced. Most owners discover the problem the way you just did: a cracked corner, a seam that’s pulling away, water staining below a surface, or a fixture base that’s suddenly not sitting right. You’re not looking for a lecture. You need the part, the price, and a crew that won’t make it worse.
We’re an independent Woodland Hills remodeling contractor, not affiliated with Tamko. That matters because we’re free to tell you plainly when an OEM Tamko part is worth the money and when a quality alternative does the same job for less.
Which Tamko Models This Applies To

Tamko makes several lines of bathroom-related waterproofing and backer materials, and compatibility is not universal. The most common call we get in Woodland Hills is for failed Tamko waterproofing membrane behind tile, followed by issues with their cement board products and shower pan liners. Your part will have a stamp or label on the back or edge. Take a photo of it before you rip anything out. The stamp tells us the series, the thickness, and whether it’s rated for walls, floors, or both.
Here’s the gotcha most homeowners miss: Tamko’s membrane products come in specific thickness and roll-width variants, and using a wall-rated product on a shower floor is a guaranteed failure. We’ve seen it in Woodland Hills homes more times than we can count. A licensed remodeler should verify the exact spec before ordering. On the OEM-vs-aftermarket question: for Tamko waterproofing, we generally recommend staying with the OEM or an equivalent product we’ve tested in Southern California’s dry-then-wet cycles. The savings from a generic substitute rarely justify the risk under tile that’s already failing once.
Styles & brands we work with







Signs Your Tamko Bathroom Remodeling Is Failing
- Grout cracking along the shower floor edges: This usually means the waterproofing beneath has shifted or degraded, and the grout is now the only thing holding water back. It’s not a cosmetic issue.
- Water staining on the ceiling below a second-floor bathroom: The failure point is rarely where the stain appears. We trace it back to a seam, a corner, or a drain penetration in the Tamko membrane.
- Musty smell that doesn’t go away after cleaning: Trapped moisture behind tile or backer board means the waterproofing has stopped doing its job, even if you can’t see the damage yet.
- Loose or hollow-sounding tiles: When the substrate under tile loses its bond, tiles move. In Woodland Hills, our dry heat causes expansion cycles that speed this up once a gap forms.
- Cracked caulk lines that keep splitting open: Caulk failure at the tub-to-tile joint is often a symptom of movement behind the surface, not just old caulk. Re-caulking alone won’t fix it if the Tamko layer underneath has given way.
See the difference
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AfterReplacement Cost & What’s Included

A Tamko bathroom remodeling job in Woodland Hills lands between $9,000 and $28,000, and here’s what swings that number. The low end covers a small bathroom with a tub-shower combo, basic materials, and no plumbing relocation. The high end is a larger primary bath with a walk-in shower, custom tile work, new fixtures, and waterproofing that has to be fully redone, not patched. Most of our Woodland Hills projects settle between $12,000 and $18,000.
Every quote includes all materials, the Tamko-compatible waterproofing or backer materials, labor, tear-out of the old materials, haul-away, and finish work. We deliver a written price before any work starts. No change orders unless you ask for something different mid-project, and that gets its own separate line item in writing before we proceed. The workmanship carries our 365-Day Done Right Promise, plainly: if it’s not right within a year of completion, we make it right at no cost to you.
DIY or Call Us?
Here’s the honest split. You can safely check the visible signs: loose tiles, cracking grout, staining. You can take photos, measure the affected area, and note what Tamko product you think you have. What you shouldn’t do is start cutting into walls or floors without knowing what’s behind them. Bathroom walls hide plumbing, electrical, and sometimes structural surprises that turn a weekend project into a five-figure repair. And waterproofing is not forgiving. A seam that’s off by an inch in a shower pan means a full tear-out six months later.
If you’re in Woodland Hills and you suspect a Tamko component has failed, call us at (831) 290-6866. We’ll walk you through what you’re seeing, tell you if it’s urgent, and give you a straight answer on what it takes to fix it. No charge for the conversation.
FAQs

A properly installed Tamko waterproofing system typically lasts 15 to 25 years in Woodland Hills conditions. Our hot, dry summers followed by occasional heavy rain cycles stress building materials through expansion and contraction, and bathrooms with poor ventilation tend to fail sooner. Call (831) 290-6866 and we can assess your specific installation.
In most cases, no. Once waterproofing has failed beneath tile, a true repair means removing the affected tile, replacing the damaged membrane, and reinstalling. Spot fixes on waterproofing almost always fail because the surrounding material has already degraded. The exception is isolated caulk or grout failure that hasn’t yet reached the membrane. Call (831) 290-6866 for an honest assessment.
Most Tamko bathroom remodels in Woodland Hills take 2 to 4 weeks from demo to final walk-through. Smaller jobs can finish in about 10 days. The waterproofing and drying steps can’t be rushed, and we won’t shorten them. We’ll give you a written schedule with the quote, and it’ll be realistic.
We stock common Tamko-compatible waterproofing membranes, backer board, and related materials on the truck for most Woodland Hills jobs. Specialty sizes or series-specific products may need a 2 to 3 day order. Either way, we confirm part availability before we schedule your start date so there’s no mid-project waiting.
Tell me what you need done. I’ll tell you what it takes and what it costs. Then we get to work.
If you’re dealing with a failing Tamko bathroom component in Woodland Hills, the fastest way to get answers is a phone call. We’ll talk through what you’re seeing, give you a straight price range over the phone, and schedule a free in-home estimate if it makes sense. No pressure. No surprise invoices. Call (831) 290-6866.
Written by Isaac Pruett, Owner, Mason Remodeling Co – Woodland Hills, CA at Mason Remodeling Co Woodland Hills, serving Woodland Hills and nearby areas.


