Shower and Tub

Have ready

Clear everything out of the tub and the surround, take down the shower curtain or door, and empty the cabinet under the vanity if the work reaches it. Tell the technician if you have seen water stains on the ceiling below or on a neighboring wall. The technician checks three things first: the valve brand and the handle center spacing, because that decides whether the cartridge can be replaced or the valve body has to come out, the condition of the tub floor and the drain, and whether there is any access from behind the wall.

• Valve replacement
• Tub swaps
• Shower heads and arms
• Access when the wall has to open

The visit

A valve replacement is planned around whether we can reach it from the back. If the only access is the tile, the tile repair is part of the scope before we open anything. Tubs get set level and bedded. The overflow and the trap are tested before the skirt or the tile closes them in.

A tub-to-tile joint caulked five times is leaking. The ceiling below is the evidence. We open the wet side, replace what is soft, and reset the joint in a material that can move.

Permit

Changing a shower head, a spout, or a trim kit is a fixture swap in the same location, so a town does not permit it and no inspection happens. Replacing the valve body or moving the drain is plumbing work that goes to the town, and the rough inspection has to occur while the wall is still open. A new tub on the existing rough-in usually rides with that same plumbing permit. The access opening is kept available until the inspection is done.

On the Shore

Two things fail early in a shore bathroom. Salt air pits the valve cartridge and the chrome, so the handle gets stiff and then drips. Damp air in a closed bathroom keeps the wall cavity wet, and the freeze-thaw swing moves the tub and the tile at different rates, which is why the caulk joint at the tub line opens again and again. That joint gets a flexible, mold-resistant sealant rather than grout, and the wall behind the surround gets a waterproofing layer, not just a moisture-resistant board.

When we leave

The valve is run on hot and cold, the shower head and the spout are checked for flow, and the tub is filled to the overflow to confirm the gasket and drain hold. The trap and ceiling below are watched. After that the access is closed or left as a panel. The care note is to wait about a day before using the shower if sealant was applied, and not to stand on a new tub apron or a surround edge, because those are not meant to carry weight.

Built with

The materials are a thermostatic or pressure-balance valve with a matching trim kit, PEX or copper supply lines, PVC or ABS waste fittings, and a tub drain with an overflow gasket. The surround gets a waterproof backer board with a bonded sheet membrane or a coated board at the wet area. The wall joint at the tub gets a flexible sealant that can take movement. The valve is chosen so the handle stops at a safe temperature instead of running full hot.