Bathroom Remodeling in San Jose, CA

California's electrical code requires ground-fault protection at bathroom receptacles, and lighting over a tub or shower has to be rated for a wet or damp location. This is also the only cheap moment to add solid blocking in the walls for a future grab bar, a wall-hung vanity, a heavy mirror or a shower bench. Blocking is a few dollars of lumber while the bay is open, which is the only moment it is cheap.

The vent duct is run to the outside in this stage as well, and then the whole assembly is inspected before anything covers it. Substrate comes next, and this is where a lot of bathrooms quietly go wrong. Cement backer board and foam backer panels are both fine surfaces to tile on, but they are not the waterproofing, and installing a plastic vapor barrier behind the backer board and then a surface membrane on top of it traps water between two impermeable layers with nowhere to dry.

Floors get their own check: ceramic and porcelain need the floor structure stiff enough that it does not deflect more than the span divided by 360, and natural stone doubles that requirement to L/720, which in an older house with 2x8 joists on a long span sometimes means sistering joists or adding a layer before any stone is ordered. The shower floor is built before it is waterproofed, not after. Water finds the drain because the floor under the tile is already sloped toward it, so a mortar pre-slope goes in first, pitched at roughly a quarter inch of fall for every foot of run, which is the range the plumbing code sets.

The bonded membrane goes over that, up the walls, over the curb and down its outside face, with reinforcing at the corners and sealed collars at the valve and the drain. Then the pan is filled with water and left standing so a leak reveals itself against a bucket of water rather than against your subfloor. A leak that reveals itself at that point can be repaired before anything is covered. Only then does tile go on.

Layout gets planned from the most visible sightline in the room rather than from an arbitrary corner, so the cut tiles land where nobody looks and full tiles land at the shower entry and the top of the wall. Floor tile in a wet area should carry a dynamic coefficient of friction of at least 0.42 under the ANSI standard, which is the number to ask for on the spec sheet when a tile is being considered for a shower floor or a bathroom floor.

Large-format tile needs a mortar rated for it, back-buttering, and lippage control, because a big tile that is slightly bowed in the middle telegraphs every high edge under raking light from a window. Movement joints get left where the tile field meets a wall or a change of plane rather than being packed solid with grout. Grout is a filler, not a seal. Cementitious grout takes on water and gives it back, which is fine when the membrane underneath is doing its job and a problem when it is the only line of defense.

Epoxy grout resists staining better and is harder to keep clean-looking during installation; it is a reasonable choice in a heavily used shower and an unnecessary one on a backsplash. Inside corners, the joint where the wall tile meets the floor, and the perimeter of the pan get flexible sealant instead of grout, because those joints move and grout cracks when it is asked to move with them. The finish stage is the part people picture when they start the project.

Vanity, top, mirror, lighting, towel bars and the fixtures themselves. A wall-hung vanity needs the blocking that went in during rough-in. A drawer-bank vanity needs the drain and trap positioned so the drawers actually clear it, which is a conversation to have when the plumbing is being roughed, not when the cabinet arrives. Sealed stone and solid-surface tops handle standing water at the faucet base better than materials chosen for a dry room, and an undermount sink leaves no rim for water to sit against.

Trim-out closes the job. Fixtures get set, the fan gets tested for actual airflow rather than just noise, the final inspection is scheduled, and the room is walked with you. The walkthrough is worth taking slowly, with the shower running: watch where water goes on the floor, check that the door or curtain contains the spray, look at the grout lines under the light you will actually use at six in the morning. Small corrections are easy while the crew is still on site and awkward once everyone has gone.