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Tamko Bathroom Remodeling: The San Antonio Owner’s Guide
A full Tamko bathroom remodel in San Antonio typically runs $9,000 to $28,000 installed, depending on the size of the room, the materials you choose, and whether we’re doing a straight swap or moving plumbing. If you’re asking about a specific Tamko product, like a tub surround, shower pan, or wall board system that’s failed, the fix usually costs far less than a full remodel. Most San Antonio homeowners start calling us after water stains show up on the ceiling below the bathroom, or when grout keeps cracking along a seam and silicone won’t stop the leak.
We stock common Tamko-compatible repair materials on our trucks, but full replacement parts often come from our San Antonio supplier network, which keeps wait times short. The first step is identifying what you actually have, because the Tamko name covers a range of products and the wrong replacement part wastes a week. Call (432) 547-6806 and we’ll help you figure it out before you spend a dime.
Which Tamko Models This Applies To
Tamko is best known for roofing and waterproofing products, but in bathroom applications the name usually comes up on shower pans, underlayment membranes, and waterproof wall boards. The most common Tamko-bathroom connection in San Antonio homes is a failed waterproofing layer beneath tile, where the original installer used a Tamko membrane product and years of Texas humidity plus hard water finally forced a seam apart.
To identify your part, look for a printed label on the exposed edge or underside of a shower pan, or check any original paperwork from the remodel. Tamko membranes come in various thicknesses, and mixing a thinner replacement with an older, thicker original membrane at a seam is the single most common compatibility mistake we see from other contractors. If you’re replacing tile, the waterproofing layer beneath it matters more than the tile itself. We always spec an OEM-equivalent membrane rather than a no-name roll from a box store, because the bond compatibility at the seams is what keeps water out of your subfloor. Sawyer Remodel San Antonio is an independent service provider, not affiliated with Tamko, so we’re free to tell you when an aftermarket equivalent is just as good and when it isn’t.
Styles & brands we work with
Signs Your Tamko Bathroom Remodeling Is Failing
- Water staining on the ceiling below the bathroom. This means water has already passed through the waterproofing layer and is sitting in the subfloor. By the time you see the stain, the leak has been active for weeks or longer.
- Grout cracking repeatedly along the same line. The tile assembly is flexing. In a shower, that flexing is usually the waterproof membrane underneath failing to hold the tile bed rigid, and the grout is the canary in the coal mine.
- A musty, sweet, or earthy smell that won’t leave the bathroom. That’s mold in the wall cavity or under the floor. The waterproofing is shot, and no amount of bleach from the surface will reach it.
- Loose or hollow-sounding tile in the shower or floor. The tile has lost its bond to the substrate, which in a wet area means water is getting behind it. Pressing on tile and feeling it give is a definitive sign, not a maybe.
- Silicone caulk that keeps peeling, darkening, or lifting at the tub and shower seams. Silicone that repeatedly fails signals constant moisture movement behind it. The correct fix is opening up the seam and repairing the waterproofing, not adding another bead of caulk on top.
None of these get better on their own. In San Antonio’s humidity cycle, a small waterproofing failure in spring becomes a subfloor replacement by August.
See the difference
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After
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AfterReplacement Cost & What’s Included
For a full bathroom remodel in San Antonio, plan on $9,000 to $28,000. The low end covers a straight replacement of a standard 5×8 bathroom using solid stock materials. The high end reflects larger bathrooms, moving plumbing, higher-end tile, and custom glass enclosures. For a targeted repair of a failed Tamko waterproofing layer or pan, the work usually falls between $1,800 and $6,000 depending on how far the water traveled before you caught it.
What drives the range is access, not mystery pricing. A shower pan replacement on a slab foundation is one thing. A second-floor bathroom with water damage to the subfloor, ceiling below it, and a resizing because the old pan was an odd dimension is another thing entirely. Every quote we write in San Antonio includes parts, labor, demolition, haul-away, and the written warranty in one line-item price. You’ll see the exact number before we start, and that’s the number on the invoice. No change orders hiding in the fine print.
DIY or Call Us?
You can safely inspect the visible signs: check for loose tile, run your hand along caulk seams, and look at ceilings below the bathroom. What you should not do is start opening up waterproofed surfaces. Once tile comes off, you’ve compromised whatever water barrier remained, and a small leak becomes an open wound. If the bathroom is on a second floor or the leak has reached a ceiling below, this is a job for a trained pro.
Luca Romano has been swinging hammers since his days at Los Angeles Trade-Technical College, and he still walks every finished bathroom himself before handing it back. If you want to know whether your Tamko bathroom problem is a $300 fix or a $10,000 rebuild, call (432) 547-6806 and we’ll tell you straight.
FAQs
Expect 15 to 20 years from a properly installed Tamko waterproofing layer in San Antonio, though hard water and poor ventilation can pull that number down toward 10 years. If your bathroom is past the 10-year mark and showing any signs of water movement, a professional inspection now costs less than subfloor replacement later. Call (432) 547-6806 for an honest assessment.
It can often be repaired if you catch it early. A failed seam or cracked corner can be opened, dried, and re-waterproofed without touching the rest of the room. Once water has saturated the subfloor or reached the ceiling below, the scope grows quickly. The cost difference between early repair and full remodel is thousands of dollars, so call (432) 547-6806 at the first sign of trouble.
A standard full bathroom remodel in San Antonio takes us 2 to 3 weeks from demo to final walkthrough. A targeted waterproofing repair usually takes 3 to 5 days, including drying time. We’ll give you a written schedule before we start, and it comes with The Relay Visibility Guarantee: live arrival time, photo updates before and after, and a written price before a single tool is picked up. Call (432) 547-6806 for a timeline on your specific project.
We keep common Tamko-compatible repair materials on our trucks for seam fixes and pan repairs, and we source full replacement parts through our San Antonio supplier network, which typically means 3 to 5 business days for anything we don’t have on hand. We also stock parts for KraftMaid, Cambria, and Silestone bathroom components, so if your remodel is a mix of brands, one call covers it. Call (432) 547-6806 and we’ll check stock while you’re on the phone.
Written by Luca Romano, Owner, Sawyer Remodel San Antonio at Sawyer Remodel San Antonio, serving San Antonio and nearby areas.
