6 Signs Your Tiling Needs Attention Before It Gets Worse

Tiling is one of those home features that looks fine right up until it very suddenly isn't — a small crack or a bit of loose grout can be hiding a bigger problem building underneath. NT Tiling & Property Services, based in Forrest Hall, sees the same warning signs come up again and again in local bathrooms and kitchens. Here they are, counted down from worth watching to worth acting on now.

6. Grout That's Cracking or Crumbling

Grout is the first line of defence against water getting behind your tiles, and it naturally wears over time, especially in wet areas like showers and around baths. Small cracks might seem cosmetic, but they're an entry point for moisture, and once water gets behind the tiles it can sit there for months without becoming obviously visible. Re-grouting early is a relatively small job compared with what happens if it's left too long.

5. Tiles That Sound Hollow When Tapped

Gently tap a few tiles with a coin or knuckle — a solid tile gives a dull, tight sound, while a hollow, echoey sound usually means the adhesive underneath has failed and the tile is no longer properly bonded to the surface. A single hollow tile might just need re-fixing, but hollow sounds across a wider area usually point to a bigger adhesion problem worth investigating properly.

4. Visible Movement or Lifting at the Edges

Tiles that have started to lift slightly at a corner or edge, or that shift underfoot on a floor, have already come away from their base to some degree. This tends to get worse rather than better on its own, since every bit of movement puts more strain on the surrounding tiles and grout lines. Left unaddressed, a lifted corner can eventually mean a cracked or fully detached tile.

3. Discolouration or Staining Around Grout Lines

Dark staining, especially in a shower or around a bath, is often mould or mildew feeding on trapped moisture rather than simple dirt that won't scrub away. Persistent staining that keeps coming back despite cleaning is a sign that moisture is getting somewhere it shouldn't, often through failed grout or a perished silicone seal at a junction like the bath edge or corner joint.

2. A Musty Smell in a Tiled Room

A persistent musty or damp smell in a bathroom or kitchen, without an obvious visible source, often means moisture has worked its way behind the tiles into the wall or floor build-up underneath. This is one of the more serious signs on this list, since by the time it's noticeable as a smell, there's usually already been some damage to what's behind the tiled surface.

1. Soft or Spongy Flooring Near a Tiled Area

If flooring near a tiled area, particularly next to a shower or bath, feels soft, spongy, or slightly different underfoot compared with the rest of the room, that's a strong sign water has been getting through for some time and affecting the subfloor. This is the most urgent sign on the list, since it usually means the damage already extends beyond the tiling itself and needs prompt investigation before it spreads further.

What a Proper Repair Job Involves

Fixing these issues properly usually means removing the affected tiles, checking and repairing whatever is underneath — whether that's damaged plasterboard, a compromised waterproof membrane, or a rotten subfloor — and only then re-tiling with fresh adhesive and grout. Skipping the "check what's underneath" step and simply re-tiling over a hidden problem is one of the most common shortcuts that leads to the same issue reappearing within a year or two.

Catching It Early Saves Money

Every sign on this list is far cheaper to deal with early than late, because tiling problems are rarely just about the tiles — they're usually about what's happening underneath them. NT Tiling & Property Services, based in Forrest Hall, has built a 5-star rating from 5 Google reviews carrying out exactly this kind of tiling and property work locally. If any of these signs sound familiar in your bathroom or kitchen, it's worth getting it looked at before a cosmetic issue becomes a structural one.