Water leaking or mouldy sealant in your shower, bath or wet room
Why is water leaking from my shower or bath?
Water escaping around a shower tray, bath or wet room edge is usually caused by failed silicone sealant. Once sealant cracks, lifts or pulls away, water tracks behind trays and fittings instead of staying inside the enclosure.
Why internal sealant fails over time
Sealant in bathrooms and kitchens is exposed to:
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Constant moisture
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Movement between surfaces
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Cleaning chemicals
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Heat changes
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Over time it degrades, hardens or becomes porous. Even if it’s not actively leaking yet, it may no longer be providing a proper seal.
Why internal leaks and mould get worse if ignored
Water escaping behind fittings spreads into floors and ceilings before visible damage appears.
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At the same time, old or poorly applied silicone traps moisture, leading to black mould and mildew that can’t be cleaned away permanently.
What problems failed or mouldy sealant can cause
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Water leaking onto floors
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Damp ceilings below
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Black mould on silicone
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Swollen bath panels or units
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Unhygienic, unsightly sealant lines
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Even where no leak is present, mouldy or badly applied sealant can make an otherwise clean bathroom look neglected.
How we fix bathroom, kitchen and wet room sealant problems
We fully remove all failed or mould affected sealant - not just the surface layer.
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The joint is cleaned and prepared correctly before applying new sanitary-grade sealant designed for wet environments.
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This improves:
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Water resistance
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Hygiene
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Appearance
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Longevity
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No patching over old silicone. No sealing on top of mould.
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We remove failed material completely and carry out professional internal sealant services.
Frequently asked questions
Could it be plumbing?
Sometimes - but most water escaping at tray or bath edges is caused by seal failure rather than pipework.
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Can black mould on silicone be cleaned permanently?
Surface cleaning may improve appearance temporarily, but once mould penetrates the sealant, full removal and replacement is usually required.
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Can you reseal without removing the old silicone?
Proper resealing requires complete removal. Applying new sealant over old material leads to premature failure.
Recent local work -
