Shower Waterproofing & Shower Pan Replacement — Leaks Fixed at the Source

The usual signs are a water stain on the ceiling below, floor tile that is loose or sounds hollow, grout that keeps cracking, a musty smell or mold that comes back after cleaning, and a soft floor or swollen baseboard outside the shower. In an apartment, a neighbor below often notices first.

Often, yes. If the water gets out through cracked grout or failed caulk, regrouting and resealing may be all it needs. If the shower pan or drain is leaking, we replace the shower floor and waterproof it, and the walls can often stay.

Tile and grout are not waterproof on their own. Shower waterproofing is the membrane behind the tile, on the walls and the floor, sealed at every corner, seam, niche and pipe, so water that gets through the grout goes to the drain instead of into the walls and the floor below.

Usually a few days. The old floor comes out, the new pan is built with the right slope to the drain, waterproofed and tested, and the materials need time to cure before the tile goes on. You get the schedule in writing with the price.

Yes. We take out the tub, move or adjust the drain, build and waterproof a new shower pan, tile it, and finish with a glass door or panel and a built-in niche if you want one. It is one of the most asked-for bathroom upgrades in NYC apartments.

Yes. Most of our shower work is in NYC apartments, co-ops and condos. We protect the halls, follow the building's work rules and hours, and can send the insurance certificate your board or management company asks for.

Yes. Sani Building Corp is fully insured, and our shower work carries a 3-year workmanship warranty.

Sani Building Corp is based in Brooklyn and serves all five NYC boroughs — Brooklyn, Manhattan, Queens, the Bronx and Staten Island — plus Long Island and Nassau County.