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Cornerstone Home Remodeling
Marble-look porcelain bathroom with tiled shower and hex mosaic pan

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Tile set flat, sealed and waterproof

Floor tile, walls and backsplashes, shower pans and natural stone. Tile fails at the substrate and the waterproofing long before it fails at the tile, so that is where the work goes.

what we set

Every tile surface we take on

Backsplashes

Kitchen and bar backsplashes in subway, zellige, mosaic and slab. Outlets planned into the layout, edges finished with metal trim or a mitered return instead of bullnose filler.

Bathroom floors & walls

Full bathroom tile from the slab up: floor, wainscot, niches and curbs. Everything laid out so grout lines carry from the floor into the shower instead of dying at the threshold.

Showers & shower pans

Mud-bed or foam pans sloped a true quarter inch per foot to the drain, curbs built solid, and the whole assembly flood tested for 24 hours before a single tile goes on.

Waterproofing

Bonded sheet or liquid membranes across pan, walls, corners and curb, with pre-formed corners and seams overlapped properly. This is the part that protects the framing behind the tile.

Floor tile & large format

Porcelain, ceramic and large-format panels over a flattened, decoupled substrate, back-buttered for full coverage and set with lippage kept under tolerance.

Natural stone & heated tile

Marble, travertine and slate set and sealed with stone-appropriate products, over electric heat mat where you want a warm floor underfoot.

Porcelain shower walls and hex mosaic shower pan
how we do it

The five steps behind tile that never cracks

01
Flatten and prep the substrate

Deflection checked, backer or uncoupling membrane installed, and the surface brought within tolerance for the tile size.

02
Waterproof before anything else

Bonded membranes at wet areas, corners and curbs, then a flood test on pans before a single tile is set.

03
Dry-lay the layout

Full dry run to place the grid, so cuts fall away from sight lines and pattern stays centered.

04
Set with the correct mortar

Product-matched mortar, back-buttering on large format, and coverage checked by pulling tiles as we go.

05
Grout, seal and detail

Grout color confirmed with you, movement joints where code wants them, stone sealed and everything cleaned down.

showers, in detail

A shower is a waterproofing job with tile on top

Nearly every failed shower we are called to rebuild failed underneath: a pan that held water in the wrong place, a membrane lapped the wrong way, or a floor that was never flat to begin with. Here is what we do instead.

Shower pans

Mud beds packed and sloped a true quarter inch per foot to the drain, or a pre-sloped foam pan where the layout suits it. Weep holes kept clear on clamping drains, curbs built solid and wrapped, no soft spots underfoot when the pan is done.

Leveling and flatness

Substrates checked with a straightedge and brought within tolerance before anything is set. Large-format tile needs a flatter floor than most bathrooms start with, so we level with patch or self-leveler rather than trying to bury a dip in mortar.

Waterproofing

A continuous bonded membrane across pan, curb, walls and niche, using pre-formed inside and outside corners and correctly overlapped seams. Fasteners kept out of the wet zone, pipe and mixer penetrations sealed with proper collars.

Flood test, then tile

Drain plugged, pan filled and held 24 hours with a mark on the water line, and the ceiling below checked before we tile. It costs a day. Skipping it is what costs a ceiling two years later.

Niches, benches and curbs

Niches framed to full tile dimensions so nothing lands as a sliver, sloped so water drains out, and benches built to shed rather than pool. Curbs and thresholds in solid stone where it makes sense.

Grout, sealant and movement

Cementitious or epoxy grout depending on the room, with silicone rather than grout at every change of plane, so normal building movement cracks nothing. Stone sealed, glass and metal edges detailed clean.

Other services

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