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Tile & Ceramic Service

18 threads · 17 questions · 1 discussion

Tiling issues look cosmetic until water gets involved. The community covers replacing a single cracked tile without redoing the floor, regrouting, hollow-sounding tiles, and bathroom waterproofing done properly the first time. Matching old tiles and getting a level, lasting finish are the recurring themes.

Threads in Tile & Ceramic Service

Tile & Ceramic Service — frequently asked questions

Can a single cracked tile be replaced without redoing the floor?

Yes — a single tile can be raked out and replaced while keeping the rest of the floor. The main challenge is matching the tile, so keep spares from any tiling job. Don't let anyone talk you into re-tiling a whole room for one crack.

Why do my tiles sound hollow when tapped?

A hollow sound means the tile has debonded from the adhesive bed underneath, from poor bonding or movement. It may stay fine for years or eventually crack and lift — monitor it, and re-bed any tile that's cracking, lifting, or in a high-traffic path.

How do I fix cracked or missing grout?

Rake out the loose grout, clean the joints, and re-grout with a matching colour; in wet areas use the right grout and reseal. Recurring cracks along one line can indicate movement that needs a flexible joint rather than more grout.

Why are my bathroom tiles or grout always damp or mouldy?

Persistent damp usually points to failed waterproofing behind the tiles or a sealing/ventilation issue, not just surface mould. Re-grouting and resealing help, but chronic damp needs the waterproofing checked.

How do I match old or discontinued tiles?

Take a sample to tile suppliers for the closest match. If it's discontinued, use a near-match in a low-visibility spot, or lift a tile from under an appliance or inside a cupboard to patch a visible area. Always keep leftover tiles as spares.

Is regrouting or re-tiling better for a tired bathroom?

If the tiles are sound and only the grout looks bad, regrouting and resealing is far cheaper and refreshes the look. Re-tile when tiles are cracked, debonded, or the waterproofing has failed.