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GAF Bathroom Remodeling: The West Palm Beach Owner’s Guide
GAF bathroom remodeling in West Palm Beach typically runs $9,000 to $28,000 installed, depending on whether you’re replacing a shower surround or gutting the whole room to the studs. We stock GAF-compatible waterproofing membranes, backer boards, and flashing systems on our trucks, so most tear-outs and dry-ins start the day we show up. Most homeowners discover a problem the hard way: a soft spot under the tile near the tub, a musty smell that won’t quit, or grout lines cracking in a pattern that says the substrate behind them is moving.

Key Takeaways:
- GAF bathroom waterproofing fails from moisture intrusion, not age alone. Florida humidity accelerates it.
- OEM GAF membrane and aftermarket equivalents both work, but the lap details and primer compatibility differ.
- We put the price in writing before any tear-out starts. That number doesn’t move unless you change the scope.
- The 365-Day Done Right Promise covers every GAF bathroom remodel we complete in West Palm Beach.
Which GAF Models This Applies To

Most GAF bathroom remodels we handle in West Palm Beach involve the HydroStop or Tri-Ply waterproofing systems, or GAF’s DensDeck and EverGuard membrane lines paired with a tile-ready substrate. The compatibility gotcha owners miss is this: GAF’s self-adhered membranes need a primer rated for the specific backer board underneath. Skip the primer, and the membrane peels like a bad sunburn inside six months. We’ve pulled apart failed installs in Northwood Village where the membrane looked fine from the outside but had delaminated at the lap seams.
If you can’t find the model label, check the corner of the original permit packet or the underside of a vanity drawer for the contractor’s material list. The membrane itself usually has a printed code on the backing paper. OEM GAF material carries a manufacturer warranty tied to the install method. A quality aftermarket membrane often performs identically for 15 to 20 percent less, but only if the installer knows which primer and lap sealant pair with it. We stock both and tell you the trade-off before you spend a dime.
Styles & brands we work with







Signs Your GAF Bathroom Remodeling Is Failing
- Grout cracking in a stair-step pattern along one wall. This means the substrate behind the tile is flexing or swelling. Water’s already in the wall cavity, and the crack is just the exit sign.
- A persistent musty smell that returns after cleaning. Mold feeds on damp framing and drywall hidden behind the waterproofing layer. By the time you smell it, the colony’s established.
- Soft spots under vinyl or tile near the tub or shower curb. The GAF membrane has a breach, and the subfloor is wicking moisture. This is structural, not cosmetic.
- Staining on the ceiling below an upstairs bathroom. Water traveled through the membrane, down the joist, and out through the drywall. The leak’s been active longer than you think.
- Caulk peeling away from the tub or shower base within weeks of application. Caulk can’t seal what the membrane should have handled. Movement behind it tells you something’s loose or waterlogged.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A GAF bathroom remodel in West Palm Beach runs $9,000 to $28,000 installed. The lower end covers a shower surround replacement with GAF waterproofing behind new tile or stone, new fixtures, and a glass enclosure. The upper end is a full gut: moving plumbing, replacing the subfloor, new GAF membrane throughout, custom vanity, heated floor, and high-end finishes. West Palm Beach homes built before the 2000s often hide the expensive surprises: rotted sill plates, termite-damaged studs, and plumbing that hasn’t been touched since the house went up.
Your written price includes the tear-out, GAF or GAF-compatible waterproofing, backer board, tile or surround material, fixtures, plumbing connections, and haul-away of the old materials. No change orders appear at the door. If the field conditions reveal something we couldn’t see during the estimate, Curtis Lane calls you before we touch it. Straight number, full scope, no surprises after the invoice.

DIY or Call Us?
You can safely identify the problem yourself: check for soft spots, look for staining on ceilings below, and press on tile edges to feel for movement. What you shouldn’t do is pull tile or cut into a wall you think is wet. West Palm Beach homes carry mold risk year-round because of the humidity, and once you open a wet cavity without containment, you release spores through the whole house. GAF membrane work also has a genuine technical bar: lap joints need the right primer, the right roller pressure, and the right cure time before tile goes over it. We’ve torn out homeowner work that looked passable for a year and failed by the second summer.
If the damage is visible or you’re just not sure, call (728) 203-9809. We’ll inspect it, tell you what we find, and give you a written price whether you hire us or not.
FAQs

A properly installed GAF membrane in a West Palm Beach bathroom lasts 20 to 30 years, but the tile and grout over it often need attention around year 15. Florida’s humidity and the salt air near the coast shorten the service life compared to drier climates. Call (728) 203-9809 if your bathroom is showing signs of moisture intrusion.
A small breach can sometimes be patched if we catch it before water spreads beyond the immediate area. Once the substrate is wet or the framing’s compromised, a patch just hides the problem. We’ll tell you straight which situation you have.
A standard full bathroom remodel runs 3 to 6 weeks from tear-out to final walkthrough, depending on whether plumbing moves and what finishes you choose. A shower-only replacement is usually 1 to 2 weeks. You’ll get a schedule in writing with your estimate.
Yes. We carry GAF HydroStop membrane, GAF primers, seam tape, and backer board on our vehicles for bathroom and wet-area work in West Palm Beach. For larger custom orders, we pull from local suppliers within a day or two. We also stock compatible materials for KraftMaid, Cambria, and Silestone projects.
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.


