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Tamko Bathroom Remodeling: The Orlando Owner’s Guide
We work on Tamko bathroom remodeling projects throughout Orlando, and the typical installed cost runs $9,000 to $28,000 depending on the size of the bath, the condition of the framing and substrate behind the walls, and whether you’re replacing a shower, tub, vanity, or the whole room. Most Tamko-related bathroom failures we see in Orlando come down to moisture getting where it shouldn’t, whether that’s a failed waterproofing layer, a cracked tile assembly, or a shower pan that has been quietly leaking into the subfloor for months. We’re Penhallow Remodeling Orlando, an independent service provider, not affiliated with Tamko directly, but we know how to work with their product lines and the materials homeowners have already got in place.

If you’re reading this, you’ve probably noticed a soft spot in the tile, a musty smell that won’t leave, or grout that keeps cracking no matter how many times you patch it. That’s usually the moment a homeowner realizes the problem isn’t cosmetic at all. It’s structural. And in Orlando, where humidity sits above 70 percent most of the year, a small moisture problem in a Tamko bathroom becomes a mold and framing problem faster than it would almost anywhere else in the country.
Which Tamko Models This Applies To

Tamko makes a broad range of building products, but when Orlando homeowners reference “Tamko bathroom remodeling,” they’re usually talking about two things: Tamko waterproofing and moisture-barrier products installed behind tile, or Tamko composite and PVC trim used around tubs, showers, and bathroom windows. The compatibility question that matters on a remodel isn’t which Tamko generation you have. It’s what the original installer did with it.
Here’s the gotcha we’ve run into repeatedly in older Orlando homes, especially in neighborhoods like College Park and Audubon Park: a homeowner has Tamko moisture barrier behind the shower wall, but the installer lapped it the wrong way at the seam, or didn’t seal the fastener penetrations with the right flashing tape. The result is a shower that looked great for five or six years and then started failing from the inside out. When we open those walls, we can tell within a few minutes whether the Tamko membrane was installed correctly. If it was, we can often repair the surface tile and save the wall assembly. If it wasn’t, the only honest fix is to tear out the wet substrate and start over with the waterproofing done right, which is part of why a full Orlando bathroom remodel lands between $9,000 and $28,000 rather than the $3,000 to $8,500 a straightforward shower replacement costs.
OEM versus aftermarket matters here less than it does with mechanical parts. Tamko flashing, waterproofing rolls, and trim boards are widely available in Orlando through local building suppliers, and we source them directly rather than substituting a no-name alternative. A quality aftermarket waterproofing membrane from a recognized brand is usually fine when installed correctly. But if you’re matching existing Tamko window trim or a particular composite profile, going OEM keeps the color and dimensions exact, and that’s worth the small price difference.
Styles & brands we work with







Signs Your Tamko Bathroom Remodeling Is Failing
- Grout cracks that reappear within weeks of patching. This almost always points to movement behind the tile, not weak grout. In Orlando’s climate, the underlying cause is often wood framing that has absorbed moisture from a failed Tamko barrier, swelling and shifting with every humidity cycle. Patching grout over that is a temporary bandage.
- A persistent musty smell that cleaners don’t touch. Mold growing inside a wall cavity has a distinctive smell that sits in the room no matter how much you scrub the surfaces. It means moisture is trapped somewhere it shouldn’t be, and that somewhere is usually a seam in the waterproofing layer or a failed shower pan.
- Discolored or darkened patches at the bottom of the tile near the tub or shower base. Water wicks upward through grout and natural stone. If you see a darker band that never fully dries along the lower tile course, the shower pan or tub flange seal is likely failing and you’ve got water pooling underneath.
- Loose or hollow-sounding tile. Tap the tile with your knuckle, especially around the valve wall and lower corners of the shower. A hollow sound means the tile has debonded from the thin-set, usually because the substrate behind it has gotten wet and is no longer stable. In our experience, once you find one loose tile in an Orlando shower with a failed moisture barrier, you’ll find five more behind it.
- Efflorescence, which is a chalky white residue creeping across the grout lines. That residue is salt being pushed out of the cement grout and mortar by water moving through the assembly. It’s a clear signal that water is living inside the system, not staying on the surface where your sealer can protect it. When we see this, we already know the repair conversation is going to include the word “substrate.”
See the difference
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AfterReplacement Cost & What’s Included

For an Orlando bathroom remodel that involves a Tamko-compatible waterproofing replacement and tile work, you’re typically looking at $9,000 to $28,000 installed. A smaller bathroom with a standard tub surround replacement runs $5,000 to $12,000. A full gut-and-rebuild of a master bath, with moving plumbing and upgrading from a tub to a walk-in shower, sits in that higher band: $4,500 to $12,000 for the shower alone, plus the rest of the room. The price drivers are the size of the wet area, the condition of the framing once we open the wall, and whether any rot has spread into the floor joists.
What you get from Penhallow Remodeling Orlando is a written price before any work starts. Not a range, not a verbal ballpark. Trevor Nash gives you the number first, then picks up the tool. That number includes parts, labor, disposal of the old materials, and the waterproofing membrane installed correctly. Every job carries our 365-Day Done Right Promise in writing: if the work fails within the guarantee period, we come back and fix it at no charge. We also source materials from recognized trade brands, including KraftMaid and Cambria, alongside the Tamko products, so the layers of protection behind our work aren’t guesswork.
DIY or Call Us?
Here’s a straight answer: you can absolutely remove the old caulk, clean the visible mildew on the tile surface, and re-caulk the tub joint yourself. Those are surface tasks and a careful homeowner can do them. What we’d tell you to avoid is opening up the wall, pulling tile off the substrate, or attempting to patch a Tamko membrane behind the tile without seeing the full extent of the water damage. The membrane is only as good as the seam work and the substrate behind it, and if you peel back the tile and find blackened drywall or crumbling cement board, you’ve now got a job that requires new material, proper fastening, and a waterproofing layer installed to the manufacturer’s spec.
This part of bathroom work isn’t a dangerous job like high-tension garage-door springs or electrical panel work, so we’re not going to scare you into calling us. But we are going to be honest: the biggest cost we see in Orlando bathrooms is the repair of a problem that someone tried to patch instead of fix. If your tile is loose, your grout is cracking, or the smell won’t leave, call us at (850) 427-6454 and we’ll send a background-checked, uniformed technician to look at it. The estimate is free and it’s in writing before you commit to anything.
FAQs

A properly installed bathroom remodel with a Tamko moisture barrier and quality cement board substrate should last 20 to 30 years in Orlando, and longer than that if the bathroom has good ventilation. The failure we see most often isn’t the product aging out. It’s the installer skipping a step, usually at the seams or the corners where most water wants to get through. Call (850) 427-6454 if your bathroom is failing early and you want to know why.
We can repair a single failed area, like a shower pan or a cracked tile section, if the substrate behind it is still dry and sound. If the waterproofing has failed broadly, a partial repair won’t stop the leaking since water will find the next weak seam. We’ll open a small inspection area and tell you honestly which situation you have. Call (850) 427-6454 and we’ll schedule that inspection.
A shower replacement usually takes 3 to 5 working days. A full bathroom remodel with plumbing changes and tile work is more like 2 to 4 weeks, depending on the size and what we find behind the walls. We’ll give you a defined arrival window and a written schedule before anyone starts swinging a hammer.
We keep common Tamko waterproofing materials and transition strips on the truck, along with cement board, thin-set, and the sealants we use every week. Specialty trim profiles or color-matched composites sometimes need a day or two from our Orlando suppliers. If you have a specific Tamko product in place, we’ll match it to the original spec before we start. Call (850) 427-6454 for a free estimate and an honest read on your bathroom.
If your Tamko bathroom is failing and you want a real answer about what it costs and what it takes to fix it, call Penhallow Remodeling Orlando at (850) 427-6454. A live person answers, day or night. We’ll set up a free estimate and hand you a written number you can hold us to. We also work with other brands we stock parts for, including KraftMaid, Cambria, and Silestone, so whatever you’ve got in your bath, we can match it. Trevor Nash runs the crew in Orlando, and we’ve been fixing the things other contractors left behind long enough to know exactly what’s behind your tile before we even open it up.
Written by Trevor Nash, Owner, Penhallow Remodeling Orlando at Penhallow Remodeling Orlando, serving Orlando and nearby areas.


