Tiling in Wales

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.

Either works, but you usually choose and buy tiles yourself and the tiler supplies adhesive, grout and trims. Order 10-15% extra for cuts and breakage (more for patterns and large formats) and keep leftovers for future repairs. Have tiles on site before the tiler starts.

A full bathroom (floor plus walls) typically takes 3-5 days: prep and waterproofing first, then setting, then grouting after the adhesive cures. Add days if old tiles must come off or the substrate needs levelling. Rushing cure times is the classic cause of cracked grout later.

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.

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.

Labour typically runs £30-60 per m² for standard formats, more for mosaics, stone and patterns. A full bathroom retile including removal and tanking commonly lands £1,500-4,000 before tiles.