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GAF Bathroom Remodeling: The Fort Lauderdale Owner’s Guide
GAF bathroom remodeling in Fort Lauderdale typically runs $9,000 to $28,000 installed, depending on the size of the space, the materials you choose, and what’s hiding behind the walls once we open them up. Most full bathroom remodels take 2 to 4 weeks from demo to final caulk. Homeowners usually figure out their current bathroom has failed when they notice water staining on the ceiling below, grout that won’t stay put, or a shower pan that flexes underfoot.
GAF is best known for roofing, but plenty of Fort Lauderdale homes have GAF moisture barriers and decking products under tile in bathrooms. When those layers start to go, the tile above them follows. That’s where we come in.
Which GAF Models This Applies To
GAF’s bathroom-relevant product lines include their moisture barriers and underlayment systems used beneath tile and stone. The most common ones we see under failed bathrooms in Fort Lauderdale are GAF’s Deck-Armor and Tiger Paw underlayment products. These aren’t branded as bathroom products specifically, but builders and remodelers across South Florida have used them under bathroom tile for years because they handle moisture better than raw plywood or cement board alone.
If you’re trying to identify what’s under your tile, look for the product label on any exposed subfloor during demo or check the original build documents from your home’s construction. The key compatibility gotcha is this: GAF underlayment is designed to work with specific thinset mortars and tile adhesives. Pairing it with the wrong mortar can void the manufacturer’s coverage and cause the same failure you’re trying to fix. We match the right mortar to the specific barrier every time, whether that’s OEM GAF-spec or a quality aftermarket equivalent like Schluter or Laticrete systems.
We also stock parts and compatible materials for KraftMaid cabinetry, Cambria, and Silestone surfaces, so if your bathroom remodel touches vanity, countertop, or shower surround work, we’re pulling from one vetted list of suppliers instead of piecing materials together from three different sources.
Styles & brands we work with
Signs Your GAF Bathroom Remodeling Is Failing
- Staining on the ceiling below the bathroom. This is the one that gets most people’s attention. Water is finding its way through the barrier and the subfloor, and by the time you see the stain, the damage underneath is usually bigger than the stain itself.
- Grout cracking or falling out in sheets. When the subfloor moves, the grout goes first. GAF underlayment that’s delaminating from the plywood beneath it creates just enough flex to pop grout lines before the tile itself cracks.
- Soft spots in the floor around the toilet or tub. That flex means the moisture barrier has been compromised and the plywood below is starting to rot. In Fort Lauderdale’s humidity, trapped moisture accelerates this faster than in drier climates.
- Musty smell that won’t clear out. Mold and mildew feed on wet subfloor and wall cavities. Cleaning the tile surface won’t fix it because the problem is underneath.
- Loose or hollow-sounding tiles. Tap a tile with a coin. If it sounds hollow in spots, the thinset bond is failing, and the underlayment below it is usually the culprit.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included
In Fort Lauderdale, a full bathroom remodel runs $9,000 to $28,000. On the lower end, you’re looking at a smaller bathroom with standard fixtures, a tub or basic shower, and mid-grade tile. The upper end covers larger footprints, walk-in showers with glass enclosures, custom vanities, and higher-end fixtures from Kohler, Moen, or Toto.
What makes the price move: the condition of the subfloor once we open it up, whether plumbing or electrical needs to be reworked to current code, and the cost of the finish materials you pick. South Florida homes built before the 2000s often have cast-iron drain lines and old copper supply lines that need attention once the walls are open. That’s not a surprise invoice, it’s a conversation we have before we start changing scope.
Every Milton Remodeling Fort Lauderdale project includes a written price before any work starts. Not an estimate, not a ballpark, a written figure with line items. If we find something unexpected behind the drywall, we stop, show you what we found, and give you a written change order before we touch another thing. Our 365-Day Done Right Promise covers the completed work for a full year from the finish date: if something’s not right, we fix it at no cost to you. Every project also includes a free return visit if any repair or installation fails, no dispute process, no conditions.
DIY or Call Us?
You can tackle the diagnosis yourself. Check for soft spots around the toilet, look at the ceiling below, and pull up a loose tile to see what’s underneath. What you shouldn’t do is tear out a bathroom floor or shower pan without knowing what you’re dealing with. The worst cases we see in Fort Lauderdale neighborhoods like Victoria Park are ones where a homeowner removed tile, exposed a compromised GAF barrier and wet subfloor, and then covered it back up with new tile without fixing the moisture problem first. Now the new tile fails, the rot continues, and the repair costs more than the original fix would have.
Isaac Pruett has spent the better part of two decades doing remodeling across South Florida, and he’ll tell you straight: most failed bathroom floors are caused by whoever did the last one cutting a corner. We tell you what we found, what it takes to fix it, and what it will cost, before we touch a thing. Call (754) 354-3720 and ask for Isaac or any of our team. A live person answers, day or night.
FAQs
A properly installed bathroom remodel in Fort Lauderdale should last 20 to 30 years before the surfaces need attention, though fixtures and caulk typically need servicing every 5 to 10 years. The Florida humidity and the moisture load in bathrooms make cheap underlayment fail much sooner than that.
Sometimes, yes. If the failure is concentrated around the toilet or a single corner and we can confirm the damage hasn’t spread, we can repair the barrier, subfloor, and tile in that one area. But water spreads, and if we find rot extending under the tub or into the wall cavity, a partial fix just postpones a bigger one. Call (754) 354-3720 and we’ll give you an honest read.
A full bathroom remodel in Fort Lauderdale takes 2 to 4 weeks, from the day we start demo to the final walkthrough. Smaller replacements like a tub-to-shower conversion run closer to 1 to 2 weeks. We give you a realistic timeline in writing before we start, and we don’t disappear mid-project.
We keep GAF-compatible moisture barriers and the correct thinset mortars stocked and ready in our Fort Lauderdale warehouse, along with materials from KraftMaid, Cambria, and Silestone. If we need to order a specific product, we tell you upfront and factor the lead time into your written price and timeline.
Written by Isaac Pruett, Owner, Mason Remodeling Co Fort Lauderdale at Mason Remodeling Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.
