The construction method used for shower surrounds in much of the base-adjacent and post-war residential construction across north Sacramento County set tile directly over standard drywall or, in better cases, a paper-faced backer. Neither substrate is rated for continuous wet exposure. Over time, water migrates through grout joints and caulk seams, reaches the substrate and begins to degrade it. The tile may look intact on the surface while the material behind it is compromised.
Our standard for any shower rebuild is full removal of tile, existing backer and any wet or deteriorated framing within the shower zone. What goes back in follows current California building practice: cement board or a fiber-cement tile backer, with a liquid-applied or sheet waterproofing membrane at all seams, corners and penetrations. The membrane is flood-tested before tile installation begins. That step takes less than a day and catches any application gaps before they are sealed behind finished walls.
For tub surrounds that are being refreshed rather than converted, the same inspection applies. We open the area around the tub lip — where water is most likely to have found a path through the caulk joint — and assess the framing and subfloor before deciding whether the surround needs partial or full demo. In a bathroom where the tub itself is staying, we are not looking for reasons to increase scope. We are looking for problems that will cause the renovation to fail prematurely if they are not addressed.
Niche installation during the open-wall phase is included at no additional demo cost, since the framing is already accessible. A recessed niche requires cutting between studs, verifying that no plumbing or electrical runs through that bay and adding a horizontal blocking header — a one-to-two-hour task that would be significantly more expensive to add after the walls are closed. We confirm niche locations during the design review before demo begins.
