Katy 77449 sits about 8.0 miles from our shop, and bathroom tile flooring is work we do there regularly.
Bathroom tile fails from the bottom up. The tile you choose is the part you look at and very rarely the part that causes trouble; what causes trouble is what is under it and how the two are joined. In this metro that means a slab sitting on clay that moves with the seasons, or a wood subfloor in an older raised house that flexes more than tile can tolerate. So a tile floor we install is mostly substrate work with a finish layer at the end. This is the actual order of operations, with the materials named, so you can compare it against any other bid you are holding.
Local building realities
Under most of the Houston metro is expansive clay. It swells when it rains and shrinks in a dry summer, and slabs ride that movement. The classic local failure is a crack that runs through the slab and telegraphs straight up through a tile and its grout line, sometimes in a floor that was laid perfectly. That is why an uncoupling or crack-isolation layer is not an upsell here and why movement joints matter — soft joints at the perimeter and over any slab control joint, rather than a rigid grout line running wall to wall.
Post-1985 stock in Katy, Cypress and Fulshear frequently sits on post-tension slabs. Nothing gets drilled or driven into those. Everything in our floor build-up is bonded, not fastened, which is how it should be regardless.
Humidity changes the finishing. Cementitious grout stays damp longer in a room that runs high humidity, so we look hard at the exhaust fan and where it discharges while we are in there. In parts of the metro with flood history, tile over a slab is the floor that dries out and survives, which is why so many bathrooms here have moved off carpet and laminate.
How the job is built
Demolition first, down to the structural substrate, with the toilet pulled and the vanity out where the tile runs under it. Old mud beds in mid-century houses come out heavy; sheet vinyl in a house built before the early eighties is tested rather than sanded, because the adhesive and backing can contain asbestos.
Then flatness. A long straightedge across the floor in several directions tells us what we are dealing with. High spots on a slab get ground, low spots get filled with a cementitious patch or self-levelling underlayment over primer. On a wood subfloor, we check deflection and fastening, add screws where the sheathing is loose, and add a layer where the span calls for it.
Next the separation layer: a sheet uncoupling membrane or a liquid crack-isolation coat, bonded with the mortar the manufacturer specifies. Waterproofing is extended at the shower threshold and around the tub.
Layout is dry-run before any mortar. We set the sightline from the door and the tub, and push cut edges to where the vanity toe and the baseboard will hide them.
Tile is set with the notch size the format demands, back-buttered on large sizes, with levelling clips to control lippage. Perimeter joints stay soft — flexible sealant, not grout. Grout after cure, then a flange extender if the floor height changed, and the toilet reset on a fresh seal.
Cost factors
Square footage is the smallest variable in a bathroom, because bathrooms are small. What moves the number is everything around the tile.
Demolition and disposal come first, and what is under the old floor is the sleeper. A single layer of vinyl is quick. A three-quarter inch mud bed over wire lath is a different day’s work, and a suspected asbestos-containing sheet floor changes the handling entirely.
Substrate correction is the second sleeper. A slab that is out of flat by a meaningful amount under large-format tile needs levelling compound, and the material and labour for that is real. Nobody can quote it accurately without a straightedge on your floor.
Then material and format. Large-format tile, natural stone, mosaics and patterned layouts all cost more to set than a straightforward twelve-inch square. Epoxy grout costs more in both material and labour than a polymer-modified cementitious grout.
Finally scope edges: whether the toilet and vanity come out, whether baseboards are replaced, thresholds, door undercuts, and whether the shower is being redone at the same time. Doing the floor alone carries the same mobilisation as doing more.
What we see in Katy
Katy covers a lot of ground. Parts sit in Harris County, parts in Fort Bend, parts in Waller, and only some addresses are actually inside the City of Katy — which affects who permits and inspects the work. The housing runs from late-1970s and 1980s neighborhoods through the master-planned build-out of the 1990s and 2000s and on into current construction. In the 80s and 90s homes we see oak cabinets, laminate counters, a garden tub with a narrow shower beside it, formal rooms nobody uses, and enough polybutylene supply piping that it is worth confirming before you commit to a bathroom. Homes that have taken water at some point come with different priorities: tile or a quality LVP instead of wood, outlets set higher than standard, closed-cell foam in place of batt. The clay moves here, so substrate flatness and movement joints get the same attention as the tile selection. Most neighborhoods have HOA architectural review.
How a project runs
We look at the room first, probe the existing floor at a discreet spot to see what is under it, and put a straightedge down. That visit is what turns a guess into a scope, and it is the reason our number changes less between bid and invoice than one written from photographs.
You get a written scope naming the membrane, the mortar, the grout type and the layout decisions, so it can be compared line for line against anything else you are considering.
On site: floor protection down the path from the door, demolition and haul-off, then a substrate day that nobody photographs and everybody depends on. Membrane, then layout dry-run, then setting. Mortar cures before grout goes in; that wait is not padding, it is the manufacturer’s requirement.
Fixtures are reset, joints sealed, and the room cleaned. If this is your only bathroom, we talk about sequencing before we start rather than after.
Common questions
Do I really need a membrane on a slab?
On a slab over Gulf Coast clay, we specify one on every bathroom floor we lay. It is a modest share of the total cost and it addresses the single most common local failure mode. There are floors where an installer skipped it and nothing happened for years, which is why the practice persists. We are not willing to bet your floor on which category yours falls into.
Does the toilet have to come out?
Yes, if you want the job done properly. Tiling up to a toilet base leaves a visible cut line, traps grime at the joint, and makes any future flange work worse. Pulling it also lets us set the flange correctly relative to the new floor height, usually with an extender, and reset on a fresh seal. It is a small addition to the scope with a large effect on the result.
Can you tile over the existing tile?
Sometimes, and we will say so if it is the right call. It preserves demolition cost but adds floor height, which affects the door swing, the threshold and the toilet flange. It also means you inherit whatever is under the old tile, including any crack that caused the problem in the first place. If the existing floor is hollow-sounding or cracked, going over it is inviting the same failure back.
Why did my last tile floor crack in a straight line?
That line is almost always the slab telling you something. Expansive clay under the metro moves seasonally, slabs crack, and without a separation layer that crack transfers directly into the tile and grout above it. It is rarely a defective tile and rarely bad mortar. The fix on the new floor is an uncoupling or crack-isolation membrane plus soft movement joints instead of rigid grout at the perimeter.
Do you cover Katy 77449?
Yes. Katy 77449 is about 8.0 miles from our shop at 1530 W Sam Houston Pkwy N, Houston, TX 77043, inside the area we work in daily. Call (281) 235-6971 to arrange a site visit.
MS Home Remodeling — bathroom tile flooring in Katy, TX 77449. Call (281) 235-6971 for a site visit.