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Tamko Bathroom Remodeling: The Fresno Owner’s Guide
If you’re searching for Tamko bathroom remodeling in Fresno, you likely have a shower pan, waterproofing membrane, or backer board from Tamko that has failed or is showing wear. A full bathroom remodel around Tamko products in Fresno typically runs $9,000 to $28,000 installed, depending on scope, materials, and whether we’re repairing failed waterproofing or rebuilding from the studs. Most Fresno homeowners discover the problem the hard way: water staining on a ceiling below, grout that won’t stay sealed, or tile that’s started to flex underfoot.

We’re Bradford Remodeling Co Fresno, an independent remodeling contractor. We’re not affiliated with Tamko, but we work with their products regularly and know exactly what fails, why it fails, and what it takes to correct it properly.
Which Tamko Models This Applies To

Tamko makes a range of building products, but in bathrooms, the two you’re most likely dealing with are their shower pan liners and waterproofing membranes. The compatibility gotcha most Fresno homeowners hit: Tamko’s PVC shower pan liners come in specific thicknesses (typically 40 mil), and using a thinner aftermarket liner or mixing membrane systems voids the performance you paid for. If your liner is labeled, you’ll find the thickness printed along the edge or on the original packaging. No label? We measure it during the estimate.
The OEM-versus-aftermarket decision matters here. For waterproofing membranes, we’ll install OEM Tamko material when we can source it locally in Fresno or through our supplier network. For shower pans and backer boards, there are quality aftermarket equivalents that perform as well or better, but only if the substrate prep is right. That’s where most failures start: not the product, but the install underneath it.
Styles & brands we work with







Signs Your Tamko Bathroom Remodeling Is Failing
- Water stains or soft spots on the ceiling below the bathroom. This means the shower pan liner or membrane has a breach. Water travels, so the stain may not line up with the actual leak point.
- Loose or “spongy” tile near the shower floor or curb. The substrate underneath has absorbed water and started to delaminate. Tile moves because what’s under it is rotting.
- Grout that cracks or falls out repeatedly, even after regrouting. Constant movement in a weakened substrate will keep popping grout. Regrouting doesn’t fix a moving floor.
- A persistent musty odor that doesn’t clear with cleaning. That’s trapped moisture in the wall cavity or under the pan. In Fresno’s dry climate, that smell usually means ongoing water intrusion, not ambient humidity.
- Visible rust or corrosion on the shower drain assembly. If the drain is rusting, water has been sitting where it shouldn’t for a long time. Inspect for liner damage around the drain flange.
Fresno’s hard water compounds the problem. Mineral deposits accelerate grout breakdown and make small leaks look like ongoing maintenance issues when they’re actually structural. If you’ve regrouted twice and the problem returns, it’s the waterproofing underneath, not the grout.
See the difference
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After
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After
Before
AfterReplacement Cost & What’s Included

A full bathroom remodel around failed Tamko waterproofing in Fresno lands between $9,000 and $28,000. The lower end covers a smaller bathroom with a tub-to-shower conversion, basic tile, and a stock vanity. The upper end covers a larger bathroom with a walk-in shower, custom tile work, a new vanity, and moving plumbing lines if needed.
What drives the price? Scope first: are we preserving the existing layout or moving plumbing? Materials second: a $2 per square foot ceramic tile job lands differently than large-format porcelain or natural stone. And demolition third: if the substrate is compromised, we’re pulling everything back to the studs and rebuilding square, because putting new tile over a rotted substrate is throwing money away.
You get a written price before any work starts. That’s non-negotiable. The number on the estimate is the number you pay. No change orders unless you change the scope, and every completed project carries the 365-Day Done Right Promise: if the work fails within a year, we come back and correct it at no charge.
DIY or Call Us?
What you can safely do yourself: shut off the water, document the damage with photos, and stop using the shower until it’s inspected. What you should not attempt: pulling tile to “find the leak.” Waterproofing failure is systemic. By the time you see the symptom, the pan or membrane has failed in ways you can’t see without removing everything. And if you miss even a small section of compromised substrate, you’re rebuilding again in two years.
Waterproofing is one of those trades where the difference between a job that lasts 30 years and one that fails in 5 is entirely in the prep and the layering sequence. That’s what The Garrison Standard covers: we document the scope, pull the proper permits, and stand behind the work in writing. Call us at (559) 785-2712 and we’ll walk you through what we’re seeing.
“The estimate says what we build, and we build what the estimate says.” That’s how Curtis Lane runs every job, including Tamko-related bathroom remodels in Fresno. You’ll know the number before we start, and you’ll have a written guarantee in hand when we finish.
FAQs

A properly installed Tamko shower pan liner should last 20 to 30 years in Fresno’s climate, where the real enemy is installation error rather than material failure. Most liners we replace in Fresno didn’t fail on their own; they failed because the substrate wasn’t prepped correctly or someone nicked the liner during install. Call (559) 785-2712 and we’ll tell you honestly whether yours is a material issue or an install issue.
No, not reliably. A breached shower pan liner or failed membrane requires pulling the shower floor and lower wall tile to access the waterproofing layer, and by the time water has breached, the surrounding substrate is usually compromised too. Patching over a failed pan from above is a temporary bandage that will keep leaking. For an exact scope and price, call (559) 785-2712 for a free estimate.
A full bathroom remodel with Tamko waterproofing replacement in Fresno typically takes 2 to 4 weeks, depending on whether we’re moving plumbing, the complexity of the tile work, and how much demolition is involved. A straight tub-to-shower conversion on a smaller bathroom runs closer to 2 weeks. We’ll give you a written timeline as part of your estimate.
We stock common Tamko-compatible waterproofing materials and shower pan components on our trucks, and we can source OEM Tamko material through our Fresno supplier network when the job calls for it. We also stock parts for KraftMaid, Cambria, and Silestone products when those are part of the remodel. If you need a specific Tamko product, call (559) 785-2712 and we’ll confirm availability before scheduling.
Written by Curtis Lane, Owner, Bradford Remodeling Co Fresno at Bradford Remodeling Co Fresno, serving Fresno and nearby areas.


