Thompsons 77481 sits about 20 miles from our shop, and walk in shower installation is work we do there regularly.
A walk-in shower is mostly things you will never see. The tile and the glass get chosen in a showroom; the part that determines whether the shower still works in fifteen years is a waterproofing assembly installed over two days and buried permanently. Add a Houston slab underneath, which is where the drain has to go and which moves with the seasons, and the invisible half of the job gets more important still. This page walks the build in order — demo, drain, slope, membrane, flood test, tile, glass — with an honest account of which steps get skipped when a price looks too good.
Local building realities
Houston makes three specific demands on a walk-in shower.
The first is the slab. There is no crawlspace to run a drain in, so drain position is a concrete decision. On post-tension slabs, common across Katy, Cypress, Fulshear, and the newer suburbs, scanning precedes any cut. A curbless entry compounds this, since a truly flush threshold usually means recessing the slab within what scanning allows, or building the whole bathroom floor up and managing the height at the door.
The second is humidity. Membranes and mortars cure differently in saturated air, and a bathroom with poor ventilation stays wet between uses. That makes exhaust capacity part of the shower design, not an afterthought: a fan sized to the room, ducted in insulated pipe, terminating outside rather than in the attic.
The third is hard water. Our water leaves mineral scale, and on a large frameless glass panel that shows quickly. Factory-applied protective coatings help, as does a squeegee habit, and brushed finishes on hardware hide spotting far better than polished chrome. Textured floor tile with heavy grout patterning will show it more than a smoother, larger format.
How the job is built
Demo takes the existing enclosure to the studs and out to the slab. Everything comes out: pan, curb, backer, and any old liner.
What is found next drives the schedule. A shower that has been leaking usually shows a soft bottom plate, a damp slab, and sometimes rot into the adjacent wall. That gets cut out and replaced before anything is built.
The drain comes next. A walk-in usually wants either a centre point drain or a linear drain against a wall, and the choice affects the slope pattern of the entire pan. If the drain position moves, the slab is scanned and cut, re-plumbed with correct fall, and patched.
Then the pan itself: either a pre-sloped foam tray matched to the drain, or a mortar pre-slope built to fall toward the drain at a consistent rate. Either way the fall is established under the waterproofing, not on top of it.
The waterproofing system follows — a bonded sheet membrane or a liquid-applied membrane, with the bonding-flange drain that belongs to that system, corners and seams treated with the system’s own components, and no mixing of manufacturers.
Then a flood test: plug the drain, fill the pan, and leave it long enough to prove it holds. This is the step that separates real waterproofing from hope.
Wall backer, membrane on the walls, niche detailing, bench if any, then tile, grout, flexible sealant at every change of plane, valve trim, and glass measured off the finished tile.
Products and materials
Waterproofing is the decision that matters. A bonded system, either a sheet membrane over foam or backer board or a liquid membrane rolled to the manufacturer’s wet-film thickness, tolerates the small seasonal movement Houston slabs produce better than a buried liner with a clamping drain, and it is testable before tile. Foam board pans and preformed curbs suit older houses because they are light and dimensionally predictable on a floor that is not. Porcelain is the default field tile. Natural stone is workable but marble etches under our hard water and wants sealing on a schedule. Cementitious high-performance grout is fine; epoxy resists hard-water film but is unforgiving on textured tile. Glass is tempered, and frameless panels need real blocking, not drywall anchors. Choose a valve family with parts still on the shelf.
Cost factors
Size and geometry first. A shower built in an old tub alcove is three walls and a small pan. A large master walk-in with two walls open, a bench, and a niche is a different scale of tile and waterproofing.
Drain choice second. A centre point drain is the economical option. A linear drain costs more in the fitting itself, requires a single-plane slope, and often looks better with large-format floor tile because it needs fewer cuts.
Curbless entry third, and this is the big one on a slab. Achieving a flush entry means slab recessing or floor build-up, both of which are real work, plus careful attention to keeping water in the shower without a curb.
Glass fourth. A framed door is one number; heavy frameless glass with a header-free panel and custom notching is well above it.
Then tile format and pattern, niche count, bench construction, and any body sprays or thermostatic valve. Walk-in showers typically fall in a wide range depending on those choices.
Thompsons housing stock
Thompsons is a very small Fort Bend County town near the Brazos south of Sugar Land, and there is no typical house here to describe honestly. It is rural — acreage, a limited number of homes, a wide spread of construction dates and building types, and a reasonable likelihood of private well and septic rather than city utilities. What that means in practice is that we approach projects here property by property rather than by neighborhood pattern. Water hardness, septic capacity if you are adding a bathroom rather than replacing one, service size at the panel, and how the structure is actually framed are all things we confirm on site instead of assuming. Elevation and floodplain status vary along the river corridor and should be checked for the specific parcel. The Gulf Coast constants still apply: expansive clay moves seasonally, humidity stays high year-round, and the details that manage both are what keep a remodel looking right in year five.
What to watch for
The most expensive mistake in the entry tier is spending the budget on tile and cutting the waterproofing, which is the one component you cannot inspect or replace later. The most common mid-tier mistake is mixing manufacturers in a bonded assembly, which voids the system coverage and puts the transitions on you. In the high tier it is specifying multiple outlets on supply that cannot deliver them, so nothing runs at pressure when two are open. Across all three, undersized mortar coverage under large tile leaves voids that crack under load, and skipped silicone at inside corners and the floor-to-wall joint puts hairline cracks in the grout within the first seasonal swing. Ordering glass before the tile is finished is another one: templating off framing rather than finished tile produces a panel that does not sit right and cannot be recut.
How a project runs
We start with measurement, drain location, and slab type, plus a look at the ceiling and attic for the exhaust route.
Then design: curbed or curbless, drain type, bench, niche, glass configuration, and the tile format that suits the slope pattern.
Selections are settled before demo because valve depth, tile thickness, and drain type all determine rough-in.
Permits where the work requires them, then demo, a walk-through with the walls open, slab work if needed, rough plumbing, inspection, pan and membrane, flood test, wall waterproofing, tile, grout, sealant, trim.
Glass is templated off the finished tile and installed last.
If you want your bathroom looked at before you choose a drain type, call (281) 235-6971.
Common questions
Linear drain or centre drain?
A linear drain lets the floor slope in one plane, which suits large-format tile because it avoids the four-way cuts a centre drain requires. It is typically placed against a wall or at the entry. A centre drain costs less and needs a four-way slope, which is why small mosaic tile is common on those floors. Choose the drain and the floor tile together, not separately.
Do I need a bench, and should it be built or a folding seat?
It depends on who uses the shower and whether the footprint can spare the room. A tiled built-in bench is permanent, needs the same waterproofing as the floor and a slight slope so water sheds off it, and eats floor area. A folding teak or phenolic seat mounts to blocking in the wall and disappears when not needed. Either way, the blocking has to go in before the walls close.
What is a flood test and should I insist on one?
The drain is plugged, the pan is filled with water, and it is left to sit long enough to show whether it holds. It is the only way to prove the waterproofing before tile buries it. It costs a small amount of time and nothing in materials. Yes, insist on it — and ask to see it while it is standing. A contractor who declines to flood test a pan is telling you something.
Curbed or curbless?
Curbless looks better, is far easier to enter with mobility limitations, and is harder and more expensive to build on a slab because you have to recess the concrete or raise the whole floor. It also demands more attention to keeping water contained, usually through a longer dry zone, a linear drain, and correct slope. A low curb is a good compromise: most of the visual openness, much less structural work.
Do you cover Thompsons 77481?
Yes. Thompsons 77481 is about 20 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 — walk in shower installation in Thompsons, TX 77481. Call (281) 235-6971 for a site visit.