Bathroom Remodeling in Katy, TX | Franco BuildWorks

This page covers bathroom remodeling for Katy, TX homeowners. For the full step-by-step guide, see our Bathroom Remodeling service page — or explore all our work in Katy.

Katy bathrooms by neighborhood and era

The 1990s–2000s master-planned homes across Cinco Ranch, Grand Lakes, Kelliwood and Seven Meadows were built with cultured-marble vanities, fiberglass tub-shower surrounds and garden tubs that now read as dated. Older baths in Old Katy (77493) and Nottingham Country tend to be smaller and often need the layout rethought more than refinished.

One Katy-specific wrinkle: many two-story homes here put a full bathroom on the second floor, sometimes directly over the garage or a living room. That placement raises the stakes on waterproofing — a slow leak upstairs shows up as a stained ceiling below — and it’s the first thing we check when we scope an upstairs bath.

Waterproofing is the detail that matters most here

In a humid Gulf-Coast climate, the shower is either built as a genuine waterproof assembly or it eventually fails. A Katy shower should have a continuous waterproof layer — a sheet membrane or a liquid-applied membrane over cement or foam backer, or a properly pre-sloped mortar pan with a liner — not tile set on plain cement board and certainly not on standard drywall.

Behind tile we use cement board or foam backer, never regular gypsum. It’s the part of the job you never see, and it’s the part that decides whether the wall behind your tile stays dry for years or grows a problem you can smell before you can see it.

• Continuous waterproof membrane behind and beneath the shower, not just water-resistant backer
• Cement board or foam backer behind tile — never standard drywall
• Pre-sloped pan and, on upstairs baths, a flood test before tile
• Sealed penetrations at the valve, niche and drain

Humidity, mold, and ventilation

Katy’s humidity means a bathroom that never fully dries out will eventually grow mold, regardless of how clean it is. A properly sized exhaust fan ducted to the outside — not just dumped into the attic — does more for a Katy bathroom’s longevity than almost any finish choice.

On the non-tiled walls we generally use a mildew-resistant paint, and we favor moisture-tolerant materials throughout. Ventilation and material choice are cheap compared to tearing out a wall later, so we treat them as core to the remodel, not upgrades.

Slab movement and cracked shower and floor tile

The same expansive clay that cracks kitchen tile cracks bathroom tile — grout lines that split, floor tile that fractures along a slab line. On ground-floor baths we typically set floor tile over a crack-isolation membrane so seasonal slab movement doesn’t telegraph straight into the finish.

If a shower’s existing tile is already cracking, we look at whether it’s a waterproofing failure, a movement issue, or both, before we quote a fix — patching over an active cause just buys you a repeat.

Second-floor bathrooms and leak consequences

Because so many Katy homes are two-story, a large share of the bathrooms we remodel sit over living space. Upstairs, the cost of a hidden leak is a damaged ceiling, insulation and sometimes framing below — so the waterproofing and pan detail that’s important on a ground floor becomes non-negotiable upstairs.

On second-floor showers we typically water-test the pan before tile goes down. It’s an extra step that catches the one mistake you can’t easily undo once the tile is set.

Permits and how Franco approaches a Katy bathroom

Moving fixtures usually brings plumbing — and sometimes electrical — into scope, which is where permitting matters. Inside City of Katy limits you permit through the city; in unincorporated Harris, Fort Bend or Waller County the rules differ, and we work to your address’s requirements.

When we scope a bathroom we’re honest about what’s behind the surround. Old water damage, a rotted subfloor at the toilet flange, or a shower that was never properly waterproofed are common finds here, and we’d rather flag them up front than discover them mid-demo and surprise you.

Bathroom Remodeling in Katy: FAQ

My shower leaks or smells musty — what’s usually wrong in Katy homes?

Most often the original shower was tiled over water-resistant backer without a true waterproof membrane, so moisture has been wicking into the wall in our humid climate. The durable fix is rebuilding on a continuous waterproof membrane rather than resealing grout, which only slows a problem that’s already behind the tile.

Can you build a curbless walk-in shower?

In many cases, yes. A curbless shower needs the floor properly sloped to the drain and, on a slab, sometimes a recess in the substrate — which is more feasible on a ground-floor Katy bath than on some second floors. We’ll look at your framing and slab and tell you honestly whether it works cleanly in your space.

Does my bathroom fan really need to vent outside?

It should. Venting a fan into the attic just moves Katy’s bathroom humidity into your insulation and roof structure, which invites mold up there instead. We typically duct exhaust fans to an exterior outlet — it’s one of the highest-value details in a humid climate like ours.

Is remodeling an upstairs bathroom riskier?

It carries a higher consequence if waterproofing fails, because a leak damages the ceiling and framing below. We treat upstairs showers with a proper pan detail and typically flood-test before tiling, so the one mistake that’s expensive to reverse gets caught before it’s buried.

Why does my bathroom tile grout keep cracking?

Usually it’s Katy’s expansive clay moving the slab, and rigid grout has nowhere to go. On new floors we set tile over a crack-isolation membrane and use flexible sealant at changes of plane, which addresses the common cause rather than just refilling the crack.

Other services in Katy

• Kitchen Remodeling in Katy
• Full Home Renovation in Katy
• Room Additions in Katy
• Drywall Repair in Katy
• Tile Installation in Katy
• Vinyl Plank Flooring in Katy
• Interior Painting in Katy

Zip codes served in Katy: 77449, 77450, 77493, 77494.