Looking at tub to shower conversion in Houston 77047? That’s around 18 miles from us, well inside the area we work daily.
A 1962 ranch off Ella and a 2006 two-storey in Cypress both get called a tub to shower conversion, and the jobs share little beyond the name. In the older house the tub is usually cast iron, set before the walls were closed, draining into cast iron under a wood subfloor. In the newer house it is a moulded fibreglass tub-shower unit on a post-tension slab, fed with PEX or CPVC. That difference does not change the tile anyone picks. It changes demolition, where the drain can go, what the framing will accept, and how much of the money disappears before the first tile is set.
Scope of work
In the older house the tub gets cut in place rather than wrestled out whole, and tile plus any original mud bed comes back to bare studs. Behind it you often find no vapour retarder, sometimes damp framing at the valve wall, occasionally a joist notched by a plumber decades ago. The drain is opened, the trap arm inspected, and thinning cast iron cut back to sound pipe and transitioned to PVC with a shielded coupling. A tub drain sits low and off-centre for a shower, so a new trap and riser normally get set. Framing is squared, blocking added for a bench, grab bars and the glass, the valve replaced with a pressure-balance or thermostatic body, and surviving galvanised supply rebuilt in PEX while the wall is open. In the newer house the moulded unit comes out in panels, the PVC drain is usually reusable where it sits, and the studs are generally straight. The constraint moves instead to the slab: any drain relocation has to be scanned and planned around post-tension tendons before anyone touches concrete. Both then get backer board or foam board, a bonded waterproofing system, a sloped pan, tile, and glass templated after the tile is set.
What gets specified
The pan is either a mortar bed sloped to the drain over a sheet membrane, or a preformed foam tray bonded to the substrate. Foam is fast and consistently sloped. Mud handles odd sizes and out-of-square rooms, which older houses supply generously. Walls get cement backer board with a liquid-applied or sheet membrane over it, or foam board that is already the waterproofing. Do not blend halves of two different systems; use one manufacturer’s board, membrane, corners and drain flange so the warranty and the chemistry both hold. Tile: large-format porcelain reduces grout, but it needs a flat wall, so older framing often has to be shimmed or floated first. Floors want smaller units or a textured porcelain for slope and grip. Glass is normally 3/8 inch tempered; low-iron reads clearer and a factory-applied hydrophobic coating helps against our water, though nothing makes glass maintenance-free. Grout and silicone should match in colour, because the changes of plane must be silicone. Valves get a mixing body with a scald stop.
What Houston conditions demand
The two constraints sit on opposite sides of the metro. West and southwest, in Katy, Cypress and Fulshear, post-1985 stock is commonly post-tension slab. Moving a shower drain there means scanning first, and sometimes it means designing the shower around the drain you already have rather than cutting. Inside the Loop the pipe is the problem instead: cast iron drains that have lost wall thickness at the invert, and galvanised branch supply that has closed up enough to drop pressure the moment you add a second head. Both halves of the metro share expansive clay under the slab, so a tiled curb and a tiled floor want a movement joint where planes change, silicone rather than grout. And both share the humidity. A shower with no working exhaust path stays wet long after use, which is how mould shows at the ceiling line in a bathroom whose waterproofing is perfectly sound.
Houston housing stock
Houston is not one housing stock, so it is not one kind of remodel. In the Heights and Woodland Heights you are often working on 1910s–1930s wood-frame homes on pier-and-beam, where leveling, sill and joist repair, and original wiring long past its service life come before anything cosmetic — and where a home in a designated historic district brings design review with it. Montrose, Oak Forest and Garden Oaks add mid-century layers. Meyerland, Westbury, Braeswood and Sharpstown are largely 1950s–60s slab ranch: cast iron drains near the end of their life, galvanized supply, single-pane windows, popcorn ceilings that should be tested before they are disturbed. Memorial and Alief lean 1970s–80s, which brings aluminum branch wiring and polybutylene supply into the conversation. West of Beltway 8 you are usually in 2000s and 2010s construction, where the job is upgrade rather than repair. Houston has no zoning, but plumbing, electrical and structural work is permitted, and deed restrictions still govern a great deal.
Common mistakes
Tiling over greenboard. It is a paper-faced gypsum product, not a wet-area substrate, and it is still found behind failed 1980s showers here weekly. Building a pan with no pre-slope under the membrane, so water sits in the mortar bed permanently. Skipping the flood test: plug the drain, fill the pan, mark the level, walk away and come back before any tile is set. Mixing waterproofing brands, particularly a foam board from one system with the corner bands and drain flange of another. Failing to bond the membrane properly to the drain flange, which is the single most common origin of a leak that shows up on a ceiling below. Running the exhaust duct into the attic instead of through the roof or wall, which just moves the moisture. Building a curb from untreated lumber and tiling it with no membrane wrap. Ordering glass off the framing dimensions rather than templating after tile, then discovering the walls are not plumb. In older houses, closing walls without replacing the galvanised behind them.
Where the budget goes
Whether the drain has to move, and what it is set in. Relocating a drain in a wood-framed floor with accessible crawl space is straightforward work. On a post-tension slab it means scanning, a saw cut, and a repair, and that changes the number. Cast iron removal and disposal costs more than pulling a fibreglass unit. Rebuilding galvanised supply while the wall is open is money well spent but it is money. After that: the glass, where a frameless panel with a heavier gauge and a hydrophobic coating costs several times a framed door; curbless construction, which requires recessing or a linear drain; tile size and pattern, since a herringbone or a stacked large-format wall is far more labour than a running bond; niche count; bench; and whether a thermostatic valve with volume controls replaces a single-handle body.
The process
Floors and the path to the door are protected first, then demolition back to studs and subfloor or slab. Plumbing and any electrical rough-in follows, with inspection where the work is permitted. Then blocking, board, waterproofing, and a flood test on the pan before a single tile is set. Tile goes wall-first or floor-first depending on the drain and the layout, grout after the mortar has cured, silicone at every change of plane. Glass is templated from the finished tile and returns later to install. Trim, valve trim, exhaust, and a final walk-through close it out. If you want yours looked at in person, call MS Home Remodeling at (281) 235-6971.
Common questions
Can I go curbless on a slab house?
Sometimes. On a wood-framed floor the joists can often be recessed to drop the pan. On a slab, and especially a post-tension slab, you are limited to what can be cut and how deep, so many curbless slab showers instead use a linear drain and a very gentle ramp with a low threshold rather than a true flush entry.
Does removing the only tub hurt resale?
It is a genuine consideration, not a myth. Buyers with small children often want at least one bathtub in the house. If the shower being converted is in the primary suite and a hall bathroom keeps its tub, that concern mostly disappears. If it is the last tub in the house, weigh it honestly against how you actually live.
Do I need a permit?
If the work moves drain, vent, or supply piping, or alters electrical, it generally falls under permitted plumbing and electrical work. Requirements differ between the City of Houston and unincorporated Harris or Fort Bend County. We confirm what applies to your address before starting rather than guessing, and we do not quote fees or review times we have not verified.
My house is from 1968. Will you find surprises?
Usually. The common ones are rotted framing at the valve wall, cast iron drain thinned at the invert, galvanised supply that has narrowed internally, and a subfloor that is soft near the old tub apron. None of these are exotic in that vintage. They are worth opening the wall to look at properly before a number is committed, because the cost difference between a sound wall and a rebuilt one is real.
Do you cover Houston 77047?
Yes. Houston 77047 is about 18 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 — tub to shower conversion in Houston, TX 77047. Call (281) 235-6971 for a site visit.