Wetwall vs. Tile & Schluter: Which Waterproof Shower System Is Right for You?
If you’re planning a shower — whether you’re a homeowner tackling a remodel or a contractor speccing a job — one decision matters more than the tile you pick or the fixtures you hang: the waterproof shower system underneath it all. Get this right and your shower stays dry, clean, and mold-free for decades. Get it wrong and you’re looking at leaks, rot, and mold hiding behind the walls within a few years.
At RKB Supply in Munster, two systems come up more than any other: solid wetwall panels and tile over a Schluter waterproofing system. Both are excellent. They’re just built for different priorities. Here’s an honest, side-by-side breakdown so you can pick the one that fits your project.
First, why the “system” matters more than the surface
Here’s the thing most people don’t realize: tile and grout are not waterproof. Grout is porous, and water works its way through it over time. Whatever waterproofing system sits behind or beneath your surface is what actually keeps moisture out of your walls — which is exactly where mold and rot start. So the real question isn’t “what looks good,” it’s “what keeps water where it belongs.” Both options below do that well when installed correctly.
Option 1: Wetwall panels
Wetwall is a solid, waterproof wall panel that installs directly over your studs or existing surface — no grout lines, no tiling. The panels themselves are the waterproof barrier.
Best for: Fast installs, low-maintenance homeowners, rentals, and anyone who hates cleaning grout.
The upsides:
- Grout-free. Nothing to scrub, nothing for mold to grow in. This is the #1 reason people choose it.
- Fast to install. Far quicker than tiling, which lowers labor cost and gets the bathroom back in service sooner.
- Fully waterproof surface with fewer seams for water to find.
- Sleek, modern, seamless look — great for contemporary bathrooms.
The trade-offs:
- Fewer design options than tile — you’re choosing from panel styles rather than an endless tile selection.
- Repairs mean replacing a panel rather than a single tile.
- Premium panels can carry a higher material cost up front (though you often save on labor).
Option 2: Tile over a Schluter waterproofing system
This is the traditional route done the right way. Instead of tiling over drywall or greenboard, you install a Schluter membrane and sealed system behind the tile, creating a continuous, watertight barrier around the entire shower. The tile is the finish; Schluter is what actually keeps it dry.
Best for: Custom looks, higher-end remodels, and anyone who wants full design freedom.
The upsides:
- Unlimited design flexibility — any tile, any pattern, any layout, niches, benches, curbless entries.
- Proven, contractor-trusted waterproofing when installed to spec.
- Timeless, high-end resale appeal that a lot of buyers still prefer.
- Spot-repairable — a single damaged tile can be replaced.
The trade-offs:
- Grout maintenance. Grout needs sealing and cleaning, and it’s the part most likely to show wear.
- Longer, more skilled install — more labor, and the waterproofing must be done correctly or it defeats the purpose.
- Higher total install cost on complex designs.
So which should you choose?
There’s no universally “better” option — there’s the one that fits your priorities:
- Wetwall if you want a faster remodel, hate maintenance, and love a clean, seamless, grout-free look.
- Tile with Schluter if design freedom and a custom, high-end finish matter most and you don’t mind a little grout upkeep.
The one mistake we steer every client away from: tiling over standard drywall or greenboard with no waterproofing system behind it. That’s the setup that leads to the mold and rot we get called about constantly — usually in bathrooms someone else remodeled on the cheap. Whichever surface you fall in love with, the waterproofing behind it is what makes it last. That’s the part we’re relentless about.
Why it comes down to who installs it
Both of these systems only work when they’re installed correctly — every seam sealed, every membrane lapped right, every corner treated. That’s not where you want a contractor cutting corners to hit a lower bid. When we remodel your bathroom, the waterproofing is done properly from the studs out, so the beautiful finish you picked stays beautiful — and dry — for decades.
Planning a bathroom remodel?
Whether you’re leaning toward wetwall, tile and Schluter, or you’re not sure yet, we’ll help you choose the right waterproof shower system for your space, your style, and your budget. For a limited time, you can start with a full 3D design of your new bathroom for just $49 using code RKB49 — so you can see exactly what your space could become before you commit to anything.
→ Book your $49 design consultation today and let’s build you a bathroom that stays beautiful for decades.
Swing by our showroom or set up your FREE consultation — we can’t wait to help you design the perfect kitchen for your Mokena home.
📞 708-658-8168
🌐 www.relentlesskb.com
📍 9617 194th St, Mokena, IL
Monday – Friday: 8:00AM – 4:00PM
Saturday: 9:00AM – 12:00PM (Appointment Required)
Relentless Kitchen & Bath — family-owned, proudly serving Mokena, Frankfort, Tinley Park, New Lenox, Homer Glen, Orland Park, and the south suburbs for over 10 years.