Bathroom Remodeling in Sienna, TX | Franco BuildWorks

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

Why bathrooms in Sienna fail early: it’s the water, not the tile

The most common problem we find in older Sienna bathrooms is a shower that was tiled directly over cement board, or worse, drywall, with no dedicated waterproofing behind it. Cement board is a good backer but it is not waterproof, and water passes through it. In a humid climate like Fort Bend County’s, that moisture sits in the wall cavity and eventually shows up as loose tile, dark grout, soft substrate, and sometimes mold.

A bathroom remodel done right in Sienna starts behind the tile, with a waterproof membrane, either a sheet membrane or a liquid-applied membrane, over a properly sloped and structurally sound base. The tile is the finish; the membrane is what keeps the wall dry.

Garden tubs, walk-in showers, and the 2000s primary bath

Sienna’s late-1990s and 2000s homes in villages like Waters Lake, Steep Bank, Bees Creek, and Anderson Springs were built when a big corner garden tub plus a small separate shower was standard in the primary bath. Many homeowners now want that tub converted to a large curbless or low-curb walk-in shower. That conversion is popular and doable, but it involves the drain location, the slab, waterproofing the new pan, and sometimes the framing, not just swapping fixtures.

• Relocating or reworking the shower drain, which sits in a slab-on-grade floor
• Building and waterproofing a correctly sloped shower pan
• Curbless entries, which need the slab recessed or the floor built up so it still drains
• Niche, bench, and glass planning so the waterproofing stays continuous

Slab plumbing realities in Sienna

Because these homes are built on slabs, bathroom drains and supply lines are generally cast into the concrete. Moving a toilet, changing a shower footprint, or adding a second sink can mean opening the slab.

We’re upfront about when a change requires that and when it doesn’t, because it’s one of the biggest drivers of cost and time in a Sienna bathroom, and it’s the kind of thing that should shape the design rather than surprise you mid-project.

Humidity, ventilation, and finishes that last

A bathroom in Sienna fights both the Gulf Coast’s ambient humidity and the moisture from daily use. An exhaust fan that actually moves enough air and vents to the exterior, not into the attic, is not optional here; it protects the paint, the drywall, and the framing.

For surfaces, we steer toward moisture-tolerant materials and, where drywall is used outside the wet zone, moisture-resistant board. Inside the shower, the membrane does the waterproofing and the tile is the finish, in that order.

Clay soil and why grout cracks

Fort Bend’s expansive clay moves the slab seasonally, and a rigid tile floor over a moving slab can develop cracked grout or tile. For bathroom floors, an anti-fracture or crack-isolation membrane over the slab helps isolate the tile from small slab movements.

It’s an honest, well-understood detail, not a guarantee against all movement, but a meaningful reduction in the most common failure we see on Sienna bathroom floors.

Permits, the Sienna HOA, and how Franco approaches a bathroom

An interior bathroom remodel that stays within the existing footprint is usually not governed by Sienna’s architectural review, which is aimed at exterior changes. Plumbing and electrical work must meet Texas code and licensing regardless. If your project adds or moves a window or exterior vent, that can bring in Fort Bend County or Missouri City permitting where applicable, plus HOA review.

We sequence a bathroom around water: confirm the substrate and slope, install real waterproofing, then tile and finish. We’d rather show you the membrane going in than ask you to trust that it’s back there. Scope and material allowances are written down so a change, say a curbless entry or a bigger shower, shows its real effect on the plan before work starts.

Bathroom Remodeling in Sienna: FAQ

My shower tile is loose and the grout is dark, what’s happening?

That usually points to missing or failed waterproofing behind the tile. Cement board alone isn’t waterproof, and in Sienna’s humidity trapped moisture loosens tile and darkens grout. The fix is rebuilding the wet area over a proper membrane.

Can you convert my garden tub to a walk-in shower?

Yes, that’s one of the most common requests in Sienna’s 2000s-era primary baths. It involves the drain, a waterproofed sloped pan, and sometimes framing changes, so we plan it around the slab rather than treating it as a simple swap.

Do you do curbless (zero-entry) showers on a slab home?

We can, but it requires either recessing the slab or building the floor up so the shower still drains correctly. We assess your specific floor before promising a curbless design.

Why does my bathroom floor grout keep cracking?

Fort Bend’s expansive clay moves the slab seasonally. A crack-isolation membrane under the tile helps isolate that movement and reduces cracking substantially in most cases, though no system fully stops soil movement.

Is an exhaust fan really necessary here?

In this climate, yes. Without a fan that vents to the exterior, Sienna’s humidity plus shower moisture degrades paint, drywall, and framing and encourages mold. Proper ventilation is part of doing the job correctly.

Other services in Sienna

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

Zip codes served in Sienna: 77459.