Tiling in Dollard-Des Ormeaux

Yes — tiles and grout are not waterproof; the membrane behind them is. Most countries mandate or strongly standardize wet-area waterproofing, and it must cure before tiling. If a bathroom quote doesn't mention waterproofing, that is the question to ask before anything else.

Ask tilers in Dollard-Des Ormeaux for photos of finished wet rooms and floor-to-wall junctions — lippage (uneven tile edges), crooked grout lines and bad cuts around fittings are where cheap work shows. Good tilers also talk about substrate prep and waterproofing before they talk about tiles.

Almost always substrate or installation, not the tile: movement in the floor, missing expansion joints, adhesive coverage too thin (spot-dabbing), or tiling over a drummy layer. Cracked single tiles from impact are replaceable if you kept spares — always keep a box.

Tilers price labour per square metre (or square foot), with tiles, adhesive, grout and prep on top. Small-format ceramic on a flat floor is the base rate; large-format porcelain, natural stone, mosaics, herringbone patterns and wall work all cost more per unit because they are slower and less forgiving.

Sometimes — if the old tiles are solidly bonded and the extra height works at doors and fittings, tiling over is legitimate and avoids messy removal. It fails when old tiles are drummy (hollow-sounding) or the wall can't take the weight. A good tiler taps and checks before promising either way.

On wood-framed floors and cracked or green concrete, yes — seasonal movement from freeze-thaw and humidity swings cracks rigidly bonded tile. Membranes (e.g. Schluter DITRA) are the accepted fix and most good tilers include them by default.