Cast iron drains and galvanized supply: replace them while the wall is open?
Bathrooms in the mid-century neighborhoods around Baytown's core often sit on the original drain and supply lines. Cast iron drains corrode from the inside and eventually weep at the joints; galvanized supply lines narrow until the shower runs weak. When a bath goes down to the studs, all of that is exposed and reachable, and replacing it costs a fraction of what it will cost after the new tile is in. We open the walls, photograph what is there, and price the replacement as its own line in the quote. In a slab house, a failing drain under the floor is the harder case and gets scoped separately.
Moving plumbing is a different decision from replacing it. A tub-to-shower conversion usually keeps the drain roughly where it was; a layout change that moves the toilet or the shower across the room means cutting the slab or reworking the joists in a pier-and-beam house, and the drain slope has to work over the new distance. That work is permitted and inspected by the City of Baytown before it is covered. On the newer east-side houses the piping is generally sound, and the scope stays with fixtures and finishes unless the layout changes.










