Bathroom snags

The category where unsealed silicone in a wet room means a leak in the lounge below — inspect every seam.

What to check

Silicone seals
Around the bath, below the shower screen, inside the shower cubicle. Continuous bead, no gaps, no fingerprints in the silicone.
Grouting
Tile lines should be clean, full, and the same colour throughout. Missing grout or hairline shrinkage cracks are snags.
Fixtures and taps
Every tap runs hot and cold, shuts off fully, doesn't drip. Shower handsets and basin mixers tested separately.
Shower screen and tray
Screen sits square in its channel, tray drains cleanly, the joint to the wall is sealed.
Extractor fans
Run the fan with the light on and off — confirm it actually moves air. A dead extractor is a damp problem later.

Example of a bathroom snag — a gap in shower silicone or missing grout line

What’s normal vs. what’s a snag

See the full explanation of NHBC viewing distances, allowed tolerances and where to push back in our pillar guide: What “within tolerance” really means →

Related categories

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