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Tamko Bathroom Remodeling: The West Palm Beach Owner’s Guide
Tamko bathroom remodeling in West Palm Beach typically runs $9,000 to $28,000 installed, depending on whether we’re replacing a failing waterproofing membrane, rebuilding a shower pan, or gutting the full bath. If your Tamko waterproofing product has failed, the damage usually shows up first as loose tile, persistent musty odor, or water staining on the ceiling below the bathroom. Most homeowners call us after their grout keeps cracking in the same spot, which in West Palm Beach’s humidity almost always means moisture has gotten behind the wallboard and the substrate is swelling.

We stock Tamko-compatible waterproofing membranes, shower pan liners, and flashing components on our trucks, and we can usually start diagnosis same week. This is not a manufacturer warranty claim situation in most cases. We’re an independent contractor, not affiliated with Tamko, but we work with their product lines daily and know exactly how their systems fail in South Florida’s climate.
Key Takeaways:
- Tamko bathroom repair and replacement in West Palm Beach: $9,000 – $28,000 installed
- Most failures trace to membrane installation errors or Florida humidity attacking the substrate
- We provide a written price before work starts, every time
- All work carries the 365-Day Done Right Promise in writing
Which Tamko Models This Applies To

Tamko’s waterproofing line splits into two families for bathrooms. The first is the sheet membrane system, sold in rolls of varying widths, typically 36 inches and 72 inches for shower pan and wall applications. The second is the liquid-applied membrane, which comes in pail sizes and gets rolled or troweled onto the substrate. Both show up in West Palm Beach homes built or remodeled within roughly the last 15 years.
Here’s the compatibility gotcha most homeowners miss: Tamko sheet membrane requires a specific modified thinset for proper bonding. Use an unmodified thinset and the tile will debond from the membrane within a few seasons. We see this constantly in Northwood Village and Flamingo Park homes where a previous contractor cut a corner. If you’re comparing an OEM Tamko replacement against a quality aftermarket equivalent like Schluter or Laticrete, the aftermarket options perform equally well in Florida’s humidity, but the install method still has to match the membrane type. That’s the difference between a repair that lasts and one that fails again in three years.
To identify what you have, look for the product label on any exposed membrane edge near the shower valve or drain. If the walls are already closed up, the failure pattern tells us a lot: bubbles in the membrane, cracked corners, or water pooling at the curb all point to specific install or material issues.
Styles & brands we work with







Signs Your Tamko Bathroom Remodeling Is Failing
- Grout cracks keep returning in the same joint. This means the substrate behind the tile is moving, usually from moisture expansion. Caulking over it buys a few months, not a fix.
- Musty smell that never fully clears, even after cleaning. In West Palm Beach’s climate, trapped moisture behind a tile wall grows mold within weeks. The smell is the first sign the waterproofing layer has been compromised.
- Water staining on the ceiling below the bathroom. By the time you see the stain, water has already traveled through the subfloor. The membrane failed earlier; the stain is just the proof.
- Tile that sounds hollow when tapped. A hollow sound means the tile has debonded from the substrate, which in a wet area almost always traces back to membrane adhesion failure.
- Soft or spongy spots in the shower floor. This is an advanced failure. The mortar bed under the pan liner is saturated and breaking down. This needs a full pan rebuild, not a patch.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included

For West Palm Beach, a Tamko shower pan rebuild with new membrane and tile runs $4,500 to $12,000. A full bathroom remodel that includes new Tamko waterproofing, tile, vanity, and fixtures lands between $9,000 and $28,000. Smaller repairs like replacing a failed membrane section behind a single wall start around $3,000 to $8,500.
What drives the range is the condition of the substrate once we open the wall. In South Florida, where humidity is constant, we often find the backer board behind the membrane has already started deteriorating. If the framing is solid, the job is straightforward. If we’re sistering studs or replacing subfloor, the number moves accordingly. Here’s what you get with every job: a written line-item price before work starts, no change orders unless you approve them in advance, and a one-year written guarantee through the 365-Day Done Right Promise. If the work fails inside that year, we return and fix it at no charge.
DIY or Call Us?
You can safely check for visible signs: run your hand along the grout lines for movement, inspect the corners where the walls meet the shower pan, and look for any discoloration at the base of the toilet or vanity. Those observations help us diagnose faster when you call.
What you should not do is start pulling tile or cutting into the wall. Once you open a wet area, you’ve potentially released mold spores into the air and you’ve removed the only surface protecting the framing from further water damage. If the membrane has failed, every day of exposure adds to the repair scope. Water damage behind tile is not a weekend project. Call us at (728) 203-9809 and we’ll do a proper assessment with a moisture meter and tell you exactly what’s going on. The estimate is free.
FAQs

A correctly installed Tamko membrane should protect your bathroom for 20 to 30 years. In West Palm Beach’s humidity, the limiting factor is rarely the membrane itself, it’s the substrate and the quality of the original installation. Improper thinset or missing seam tape shortens that lifespan to under five years.
If your system failed early, don’t assume Tamko’s product was the problem. The failure usually points to installation. Call (728) 203-9809 and we’ll find out what’s behind it.
Yes, if the failure is isolated to a single seam or corner and the surrounding substrate is still sound, a section can be cut out and a new membrane patch sealed over it. If the damage extends into the shower pan or multiple wall areas, replacement is the honest fix. We’ll tell you which one you’re looking at after a moisture test.
Most full bathroom remodels with new Tamko waterproofing run two to three weeks. A pan rebuild alone runs four to six days, including cure time for the mortar bed before tile goes down. We sequence every step in writing so you know which days we’re on site and which days are cure time.
We keep Tamko-compatible sheet membrane, seam tape, corner pieces, and drain assemblies on our trucks, along with the modified thinsets required for proper bonding. We also stock parts for KraftMaid, Cambria, and Silestone installations, so if your remodel touches other surfaces we’re not running to a supply house mid-job.
If your Tamko bathroom has failed, don’t wait for the water to find the ceiling below. Call (728) 203-9809 for a free assessment and a written price before any work starts. Straight number, full scope, no surprises after the invoice. Curtis Lane will walk the job himself, and you’ll have the written estimate in hand before you commit to anything.
Written by Curtis Lane, Owner, Bradford Remodeling Co – West Palm Beach at Bradford Remodeling Co West Palm Beach, serving West Palm Beach and nearby areas.


